steve/radial-inductor

Radial leaded inductor, Fastron pin type coils: 07M shielded, 07P and 11P with tube, 07HCP, 09HCP and 07HVP open or with tube.

v1.0.0 Latest STEVE MIT 0

Open in STEVE

Isometric

Parameters

Preset10 sizes

Series9 options

Leads below the board0.5–30 mm

Detail

fullsimple

full: body, winding and leads. simple: the body only, for big assemblies.

Defaults built

part.py 84 lines · Python · STEVE runtime · checked

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"""Radial leaded inductor, Fastron's pluggable pin-type coils: 07M (shielded), 07P and 11P (with tube), 07HCP, 09HCP and 07HVP (open drum

core, winding showing) and their /T versions with tube. The body stands on the board; lead 1 is at the origin and lead 2 at +X by the

pitch; the leads go straight down through the board. Dimensions from Fastron's data sheets, listed in the README."""

from steve import Model

series = "07M" # Series (Fastron part number prefix)

tail = 3.0 # mm Leads below the board

detail = "full" # full: body and leads; simple: the body only

# Fastron data sheets, one page each (fastrongroup.com, "Pluggable Inductors (Pin Type Coils)", files under wp-content/uploads/2026/06/),

# the drawing's maximum body diameter and height, lead diameter and pitch ("Revision date" printed on each sheet):

# 07M (03 Aug 2022): Ø 10 max, 12.5 max, Ø 0.65, 5.0. 07P (29 Jul 2022), Loose / Box [-50]: Ø 7.2 max, 11.0 max, Ø 0.65, 3.5.

# 07HCP (26 Aug 2022): Ø 8.3 max, 10.0 max; 07HCP/T Ø 9.2 max, 10.5 max; both Ø 0.70, 5.0.

# 09HCP (29 Aug 2022): Ø 12.3 max, 10.8 max; 09HCP/T Ø 12.7 max, 11.5 max; both Ø 0.80, 7.0.

# 11P (12 Aug 2022): Ø 10.5 max, 15.0 max, Ø 0.7, 5.0. 07HVP (25 Aug 2022): 07HVP Ø 8.3 max, 10 max; 07HVP/T Ø 9.2 max, 10.5 max; Ø 0.7, 5.0.

# Each entry: (body diameter, body height, lead diameter, pitch, kind): can = shielded, tube = drum core under a tube, open = drum core.

SIZES = {

"07M": (10.0, 12.5, 0.65, 5.0, "can"),

"07P": (7.2, 11.0, 0.65, 3.5, "tube"),

"07HCP": (8.3, 10.0, 0.70, 5.0, "open"),

"07HCP/T": (9.2, 10.5, 0.70, 5.0, "tube"),

"09HCP": (12.3, 10.8, 0.80, 7.0, "open"),

"09HCP/T": (12.7, 11.5, 0.80, 7.0, "tube"),

"07HVP": (8.3, 10.0, 0.7, 5.0, "open"),

"07HVP/T": (9.2, 10.5, 0.7, 5.0, "tube"),

"11P": (10.5, 15.0, 0.7, 5.0, "tube"),

}

if series not in SIZES:

raise ValueError(f"no series {series!r}: {', '.join(SIZES)}")

diameter, height, lead, pitch, kind = SIZES[series]

R, r, H = diameter / 2, lead / 2, height

cx = pitch / 2

# Body outlines as (radius, z), proportions for looks (the sheets draw the shape but dimension only Ø and height):

# can: a plain cylinder, its top edge chamfered by 0.05 x the diameter;

# tube: the tube follows the drum core's flanges, 0.2 x the height each at the full diameter, and the waist between at 0.88 x the

# diameter, with the end edges rounded by 0.1 x the radius;

# open: flanges 0.15 x the height thick at the full diameter, the winding between them at 0.9 x the diameter on a core of 0.5 x it.

if kind == "can":

c = 0.05 * diameter

outline = [(0, 0), (R, 0), (R, H - c), (R - c, H), (0, H)]

elif kind == "tube":

e, fl, w = 0.1 * R, 0.2 * H, 0.88 * R

outline = [(0, 0), (R - e, 0), (R, e), (R, fl), (w, fl + 0.05 * H), (w, H - fl - 0.05 * H), (R, H - fl), (R, H - e), (R - e, H), (0, H)]

else:

fl = 0.15 * H

outline = [(0, 0), (R, 0), (R, fl), (0.5 * R, fl), (0.5 * R, H - fl), (R, H - fl), (R, H), (0, H)]

model = Model()

with model.sketch("body_sketch", on="XZ", name="Body") as sk:

sk.polyline("body_outline", [(cx + u, z) for u, z in outline], closed=True)

model.revolve("body", "body_sketch", axis=((cx, 0, 0), (0, 0, 1)), op="new", body="body_body", name="Body")

bodies = ["body_body"]

if kind == "open" and detail == "full":

# The winding: copper between the flanges, 0.9 x the diameter, its turns drawn 0.5 apart and 0.1 deep (proportions; the sheets give no

# wire size).

rw, turns = 0.9 * R, max(4, int((H - 2 * fl) / 0.5))

step = (H - 2 * fl) / turns

wind = [(cx + 0.5 * R, fl), (cx + rw - 0.1, fl)]

for i in range(turns):

wind += [(cx + rw, fl + (i + 0.5) * step), (cx + rw - 0.1, fl + (i + 1) * step)]

wind += [(cx + 0.5 * R, H - fl)]

with model.sketch("winding_sketch", on="XZ", name="Winding") as sk:

sk.polyline("winding_outline", wind, closed=True)

model.revolve("winding", "winding_sketch", axis=((cx, 0, 0), (0, 0, 1)), op="new", body="winding_body", name="Winding")

bodies.append("winding_body")

if detail == "full":

model.plane("leads_start", on="XY", offset=-tail, name="Lead ends")

for i, x in enumerate((0.0, pitch), 1):

with model.sketch(f"lead_{i}_section", on="leads_start", name=f"Lead {i}") as sk:

sk.circle(f"lead_{i}_round", (x, 0), r)

model.extrude(f"lead_{i}", f"lead_{i}_section", distance=tail, op="new", body=f"lead_{i}_body", name=f"Lead {i}")

bodies.append(f"lead_{i}_body")

# Materials, for looks and a rough mass: the material list has no ferrite, so the ferrite can and drum core stand in as alumina (a ceramic,

# density about 3.9 against ferrite's 4.8). The tube types' body is one solid, the drum core with its thin tube, and is alumina too. The

# winding copper, the leads tinned copper.

model.material("alumina", bodies=["body_body"], color="#2e3033" if kind != "open" else "#45474b")

if detail == "full":

if kind == "open":

model.material("copper", bodies=["winding_body"], color="#c8834f")

model.material("copper", bodies=[b for b in bodies if b.startswith("lead")], color="#c9ccd1")

result = model.result()

"""Radial leaded inductor, Fastron's pluggable pin-type coils: 07M (shielded), 07P and 11P (with tube), 07HCP, 09HCP and 07HVP (open drum
core, winding showing) and their /T versions with tube. The body stands on the board; lead 1 is at the origin and lead 2 at +X by the
pitch; the leads go straight down through the board. Dimensions from Fastron's data sheets, listed in the README."""
from steve import Model

series = "07M"  # Series (Fastron part number prefix)
tail = 3.0  # mm Leads below the board
detail = "full"  # full: body and leads; simple: the body only

# Fastron data sheets, one page each (fastrongroup.com, "Pluggable Inductors (Pin Type Coils)", files under wp-content/uploads/2026/06/),
# the drawing's maximum body diameter and height, lead diameter and pitch ("Revision date" printed on each sheet):
#   07M (03 Aug 2022): Ø 10 max, 12.5 max, Ø 0.65, 5.0.           07P (29 Jul 2022), Loose / Box [-50]: Ø 7.2 max, 11.0 max, Ø 0.65, 3.5.
#   07HCP (26 Aug 2022): Ø 8.3 max, 10.0 max; 07HCP/T Ø 9.2 max, 10.5 max; both Ø 0.70, 5.0.
#   09HCP (29 Aug 2022): Ø 12.3 max, 10.8 max; 09HCP/T Ø 12.7 max, 11.5 max; both Ø 0.80, 7.0.
#   11P (12 Aug 2022): Ø 10.5 max, 15.0 max, Ø 0.7, 5.0.          07HVP (25 Aug 2022): 07HVP Ø 8.3 max, 10 max; 07HVP/T Ø 9.2 max, 10.5 max; Ø 0.7, 5.0.
# Each entry: (body diameter, body height, lead diameter, pitch, kind): can = shielded, tube = drum core under a tube, open = drum core.
SIZES = {
    "07M": (10.0, 12.5, 0.65, 5.0, "can"),
    "07P": (7.2, 11.0, 0.65, 3.5, "tube"),
    "07HCP": (8.3, 10.0, 0.70, 5.0, "open"),
    "07HCP/T": (9.2, 10.5, 0.70, 5.0, "tube"),
    "09HCP": (12.3, 10.8, 0.80, 7.0, "open"),
    "09HCP/T": (12.7, 11.5, 0.80, 7.0, "tube"),
    "07HVP": (8.3, 10.0, 0.7, 5.0, "open"),
    "07HVP/T": (9.2, 10.5, 0.7, 5.0, "tube"),
    "11P": (10.5, 15.0, 0.7, 5.0, "tube"),
}

if series not in SIZES:
    raise ValueError(f"no series {series!r}: {', '.join(SIZES)}")
diameter, height, lead, pitch, kind = SIZES[series]
R, r, H = diameter / 2, lead / 2, height
cx = pitch / 2

# Body outlines as (radius, z), proportions for looks (the sheets draw the shape but dimension only Ø and height):
#   can: a plain cylinder, its top edge chamfered by 0.05 x the diameter;
#   tube: the tube follows the drum core's flanges, 0.2 x the height each at the full diameter, and the waist between at 0.88 x the
#         diameter, with the end edges rounded by 0.1 x the radius;
#   open: flanges 0.15 x the height thick at the full diameter, the winding between them at 0.9 x the diameter on a core of 0.5 x it.
if kind == "can":
    c = 0.05 * diameter
    outline = [(0, 0), (R, 0), (R, H - c), (R - c, H), (0, H)]
elif kind == "tube":
    e, fl, w = 0.1 * R, 0.2 * H, 0.88 * R
    outline = [(0, 0), (R - e, 0), (R, e), (R, fl), (w, fl + 0.05 * H), (w, H - fl - 0.05 * H), (R, H - fl), (R, H - e), (R - e, H), (0, H)]
else:
    fl = 0.15 * H
    outline = [(0, 0), (R, 0), (R, fl), (0.5 * R, fl), (0.5 * R, H - fl), (R, H - fl), (R, H), (0, H)]

model = Model()
with model.sketch("body_sketch", on="XZ", name="Body") as sk:
    sk.polyline("body_outline", [(cx + u, z) for u, z in outline], closed=True)
model.revolve("body", "body_sketch", axis=((cx, 0, 0), (0, 0, 1)), op="new", body="body_body", name="Body")
bodies = ["body_body"]
if kind == "open" and detail == "full":
    # The winding: copper between the flanges, 0.9 x the diameter, its turns drawn 0.5 apart and 0.1 deep (proportions; the sheets give no
    # wire size).
    rw, turns = 0.9 * R, max(4, int((H - 2 * fl) / 0.5))
    step = (H - 2 * fl) / turns
    wind = [(cx + 0.5 * R, fl), (cx + rw - 0.1, fl)]
    for i in range(turns):
        wind += [(cx + rw, fl + (i + 0.5) * step), (cx + rw - 0.1, fl + (i + 1) * step)]
    wind += [(cx + 0.5 * R, H - fl)]
    with model.sketch("winding_sketch", on="XZ", name="Winding") as sk:
        sk.polyline("winding_outline", wind, closed=True)
    model.revolve("winding", "winding_sketch", axis=((cx, 0, 0), (0, 0, 1)), op="new", body="winding_body", name="Winding")
    bodies.append("winding_body")
if detail == "full":
    model.plane("leads_start", on="XY", offset=-tail, name="Lead ends")
    for i, x in enumerate((0.0, pitch), 1):
        with model.sketch(f"lead_{i}_section", on="leads_start", name=f"Lead {i}") as sk:
            sk.circle(f"lead_{i}_round", (x, 0), r)
        model.extrude(f"lead_{i}", f"lead_{i}_section", distance=tail, op="new", body=f"lead_{i}_body", name=f"Lead {i}")
        bodies.append(f"lead_{i}_body")
# Materials, for looks and a rough mass: the material list has no ferrite, so the ferrite can and drum core stand in as alumina (a ceramic,
# density about 3.9 against ferrite's 4.8). The tube types' body is one solid, the drum core with its thin tube, and is alumina too. The
# winding copper, the leads tinned copper.
model.material("alumina", bodies=["body_body"], color="#2e3033" if kind != "open" else "#45474b")
if detail == "full":
    if kind == "open":
        model.material("copper", bodies=["winding_body"], color="#c8834f")
    model.material("copper", bodies=[b for b in bodies if b.startswith("lead")], color="#c9ccd1")
result = model.result()

pypart.toml 99 lines · TOML

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name = "steve/radial-inductor"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "Radial leaded inductor, Fastron pin type coils: 07M shielded, 07P and 11P with tube, 07HCP, 09HCP and 07HVP open or with tube."

description = """Radial leaded inductor standing on the board, Fastron's pluggable pin type coils. 07M is shielded; 07P, 11P and the /T versions have a tube over the drum core; 07HCP, 09HCP and 07HVP show their winding between the drum core's flanges. The series gives the body diameter and height, the lead diameter and the pitch, from Fastron's data sheets. Lead 1 at the origin, lead 2 along +X. See the README."""

tags = ["inductor", "choke", "radial", "through-hole", "fastron", "electronics"]

[parameters.series]

type = "choice"

default = "07M"

choices = ["07M", "07P", "07HCP", "07HCP/T", "09HCP", "09HCP/T", "07HVP", "07HVP/T", "11P"]

label = "Series"

[parameters.tail]

type = "number"

default = 3.0

min = 0.5

max = 30

unit = "mm"

label = "Leads below the board"

[parameters.detail]

type = "choice"

default = "full"

choices = ["full", "simple"]

label = "Detail"

description = "full: body, winding and leads. simple: the body only, for big assemblies."

[[presets]]

id = "07M"

title = "Fastron 07M, shielded, Ø 10 x 12.5, 5 mm pitch"

params = { series = "07M" }

aliases = ["Fastron 07M", "07M", "07M pin type coil", "07M radial inductor", "radial inductor 10x12.5"]

standard = "Fastron 07M"

[[presets]]

id = "07P"

title = "Fastron 07P, with tube, Ø 7.2 x 11, 3.5 mm pitch"

params = { series = "07P" }

aliases = ["Fastron 07P", "07P", "07P pin type coil", "07P radial inductor", "radial inductor 7.2x11"]

standard = "Fastron 07P"

[[presets]]

id = "07HCP"

title = "Fastron 07HCP, open drum core, Ø 8.3 x 10, 5 mm pitch"

params = { series = "07HCP" }

aliases = ["Fastron 07HCP", "07HCP", "07HCP pin type coil", "07HCP radial inductor", "radial inductor 8.3x10"]

standard = "Fastron 07HCP"

[[presets]]

id = "07HCP-T"

title = "Fastron 07HCP/T, with tube, Ø 9.2 x 10.5, 5 mm pitch"

params = { series = "07HCP/T" }

aliases = ["Fastron 07HCP/T", "07HCP/T", "07HCP/T pin type coil", "07HCP/T radial inductor", "radial inductor 9.2x10.5"]

standard = "Fastron 07HCP/T"

[[presets]]

id = "09HCP"

title = "Fastron 09HCP, open drum core, Ø 12.3 x 10.8, 7 mm pitch"

params = { series = "09HCP" }

aliases = ["Fastron 09HCP", "09HCP", "09HCP pin type coil", "09HCP radial inductor", "radial inductor 12.3x10.8"]

standard = "Fastron 09HCP"

[[presets]]

id = "09HCP-T"

title = "Fastron 09HCP/T, with tube, Ø 12.7 x 11.5, 7 mm pitch"

params = { series = "09HCP/T" }

aliases = ["Fastron 09HCP/T", "09HCP/T", "09HCP/T pin type coil", "09HCP/T radial inductor", "radial inductor 12.7x11.5"]

standard = "Fastron 09HCP/T"

[[presets]]

id = "07HVP"

title = "Fastron 07HVP, open drum core, Ø 8.3 x 10, 5 mm pitch"

params = { series = "07HVP" }

aliases = ["Fastron 07HVP", "07HVP", "07HVP pin type coil", "07HVP radial inductor", "radial inductor 8.3x10"]

standard = "Fastron 07HVP"

[[presets]]

id = "07HVP-T"

title = "Fastron 07HVP/T, with tube, Ø 9.2 x 10.5, 5 mm pitch"

params = { series = "07HVP/T" }

aliases = ["Fastron 07HVP/T", "07HVP/T", "07HVP/T pin type coil", "07HVP/T radial inductor", "radial inductor 9.2x10.5"]

standard = "Fastron 07HVP/T"

[[presets]]

id = "11P"

title = "Fastron 11P, with tube, Ø 10.5 x 15, 5 mm pitch"

params = { series = "11P" }

aliases = ["Fastron 11P", "11P", "11P pin type coil", "11P radial inductor", "radial inductor 10.5x15"]

standard = "Fastron 11P"

[[presets]]

id = "07M-simple"

title = "Fastron 07M, shielded, Ø 10 x 12.5, 5 mm pitch, simple"

params = { series = "07M", detail = "simple" }

aliases = ["Fastron 07M simple"]

standard = "Fastron 07M"

name = "steve/radial-inductor"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Radial leaded inductor, Fastron pin type coils: 07M shielded, 07P and 11P with tube, 07HCP, 09HCP and 07HVP open or with tube."
description = """Radial leaded inductor standing on the board, Fastron's pluggable pin type coils. 07M is shielded; 07P, 11P and the /T versions have a tube over the drum core; 07HCP, 09HCP and 07HVP show their winding between the drum core's flanges. The series gives the body diameter and height, the lead diameter and the pitch, from Fastron's data sheets. Lead 1 at the origin, lead 2 along +X. See the README."""
tags = ["inductor", "choke", "radial", "through-hole", "fastron", "electronics"]

[parameters.series]
type = "choice"
default = "07M"
choices = ["07M", "07P", "07HCP", "07HCP/T", "09HCP", "09HCP/T", "07HVP", "07HVP/T", "11P"]
label = "Series"

[parameters.tail]
type = "number"
default = 3.0
min = 0.5
max = 30
unit = "mm"
label = "Leads below the board"

[parameters.detail]
type = "choice"
default = "full"
choices = ["full", "simple"]
label = "Detail"
description = "full: body, winding and leads. simple: the body only, for big assemblies."

[[presets]]
id = "07M"
title = "Fastron 07M, shielded, Ø 10 x 12.5, 5 mm pitch"
params = { series = "07M" }
aliases = ["Fastron 07M", "07M", "07M pin type coil", "07M radial inductor", "radial inductor 10x12.5"]
standard = "Fastron 07M"

[[presets]]
id = "07P"
title = "Fastron 07P, with tube, Ø 7.2 x 11, 3.5 mm pitch"
params = { series = "07P" }
aliases = ["Fastron 07P", "07P", "07P pin type coil", "07P radial inductor", "radial inductor 7.2x11"]
standard = "Fastron 07P"

[[presets]]
id = "07HCP"
title = "Fastron 07HCP, open drum core, Ø 8.3 x 10, 5 mm pitch"
params = { series = "07HCP" }
aliases = ["Fastron 07HCP", "07HCP", "07HCP pin type coil", "07HCP radial inductor", "radial inductor 8.3x10"]
standard = "Fastron 07HCP"

[[presets]]
id = "07HCP-T"
title = "Fastron 07HCP/T, with tube, Ø 9.2 x 10.5, 5 mm pitch"
params = { series = "07HCP/T" }
aliases = ["Fastron 07HCP/T", "07HCP/T", "07HCP/T pin type coil", "07HCP/T radial inductor", "radial inductor 9.2x10.5"]
standard = "Fastron 07HCP/T"

[[presets]]
id = "09HCP"
title = "Fastron 09HCP, open drum core, Ø 12.3 x 10.8, 7 mm pitch"
params = { series = "09HCP" }
aliases = ["Fastron 09HCP", "09HCP", "09HCP pin type coil", "09HCP radial inductor", "radial inductor 12.3x10.8"]
standard = "Fastron 09HCP"

[[presets]]
id = "09HCP-T"
title = "Fastron 09HCP/T, with tube, Ø 12.7 x 11.5, 7 mm pitch"
params = { series = "09HCP/T" }
aliases = ["Fastron 09HCP/T", "09HCP/T", "09HCP/T pin type coil", "09HCP/T radial inductor", "radial inductor 12.7x11.5"]
standard = "Fastron 09HCP/T"

[[presets]]
id = "07HVP"
title = "Fastron 07HVP, open drum core, Ø 8.3 x 10, 5 mm pitch"
params = { series = "07HVP" }
aliases = ["Fastron 07HVP", "07HVP", "07HVP pin type coil", "07HVP radial inductor", "radial inductor 8.3x10"]
standard = "Fastron 07HVP"

[[presets]]
id = "07HVP-T"
title = "Fastron 07HVP/T, with tube, Ø 9.2 x 10.5, 5 mm pitch"
params = { series = "07HVP/T" }
aliases = ["Fastron 07HVP/T", "07HVP/T", "07HVP/T pin type coil", "07HVP/T radial inductor", "radial inductor 9.2x10.5"]
standard = "Fastron 07HVP/T"

[[presets]]
id = "11P"
title = "Fastron 11P, with tube, Ø 10.5 x 15, 5 mm pitch"
params = { series = "11P" }
aliases = ["Fastron 11P", "11P", "11P pin type coil", "11P radial inductor", "radial inductor 10.5x15"]
standard = "Fastron 11P"

[[presets]]
id = "07M-simple"
title = "Fastron 07M, shielded, Ø 10 x 12.5, 5 mm pitch, simple"
params = { series = "07M", detail = "simple" }
aliases = ["Fastron 07M simple"]
standard = "Fastron 07M"

README.md 49 lines · Markdown

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Radial inductor

A radial leaded inductor standing on the board: Fastron's pluggable pin type coils. Lead 1 is at the origin, lead 2 is at +X by the pitch, and the leads go straight down through the board. The body is centred between them.

Series	Kind	Body Ø max	Height max	Lead Ø	Pitch
07M	shielded	10	12.5	0.65	5.0
07P	with tube	7.2	11.0	0.65	3.5
07HCP	open drum core	8.3	10.0	0.70	5.0
07HCP/T	with tube	9.2	10.5	0.70	5.0
09HCP	open drum core	12.3	10.8	0.80	7.0
09HCP/T	with tube	12.7	11.5	0.80	7.0
07HVP	open drum core	8.3	10	0.7	5.0
07HVP/T	with tube	9.2	10.5	0.7	5.0
11P	with tube	10.5	15.0	0.7	5.0

Every inductance of a series has the same body. The sheets' part number tables give the inductances.

Source

Fastron's data sheets, one page each, from Fastron's own site (https://fastrongroup.com/, "Pluggable Inductors (Pin Type Coils)", the series' product pages, files under wp-content/uploads/2026/06/). Each sheet's drawing gives the maximum body diameter and height, the lead diameter and the pitch.

07M, revision date 03 Aug 2022 (07M.pdf): Ø 10 max, 12.5 max, leads Ø 0.65, 5.0 apart.
07P, revision date 29 Jul 2022 (07P.pdf): Loose / Box [-50], Ø 7.2 max, 11.0 max, leads Ø 0.65, 3.5 apart. The Taped / Reel [-51] version, with formed leads at 5.0, isn't modelled.
07HCP and 07HCP/T, revision date 26 Aug 2022 (07HCP-07HCP_T.pdf): Ø 8.3 max and 10.0 max; with tube Ø 9.2 max and 10.5 max; leads Ø 0.70, 5.0 apart.
09HCP and 09HCP/T, revision date 29 Aug 2022 (09HCP-09HCP_T.pdf): Ø 12.3 max and 10.8 max; with tube Ø 12.7 max and 11.5 max; leads Ø 0.80, 7.0 apart.
07HVP and 07HVP/T, revision date 25 Aug 2022 (07HVP-07HVP_T.pdf): Ø 8.3 max and 10 max; with tube Ø 9.2 max and 10.5 max; leads Ø 0.7, 5.0 apart.
11P, revision date 12 Aug 2022 (11P.pdf): Ø 10.5 max, 15.0 max, leads Ø 0.7, 5.0 apart.

Proportions, for looks only. The sheets draw the shapes but dimension only the diameter and height:

07M's can has its top edge chamfered by 0.05 x the diameter.
A tube follows the drum core's flanges. They're 0.2 x the height each, at the full diameter, and the waist between them is 0.88 x the diameter. The end edges are rounded by 0.1 x the radius.
An open drum core has flanges 0.15 x the height thick, at the full diameter. The copper winding between them is 0.9 x the diameter, on a core of 0.5 x it, with its turns drawn 0.5 apart and 0.1 deep. The sheets give no wire size.
The body touches the board. The leads end 3.0 below the board by default (tail). 09HCP's dimension "a" (2.0 or 3.0 max by part number) isn't modelled.
Materials are for looks and a rough mass. Ferrite isn't in the material list, so alumina, a ceramic with a density of about 3.9 against ferrite's 4.8, stands in for the ferrite can and drum core. The tube types' body is one solid, the drum core with its thin plastic tube, and it's alumina too, because most of it is ferrite. The winding is copper and the leads are tinned copper.

Catalogue models

L_Radial_D10.0mm_P5.00mm_Fastron_07M maps to 07M. Measured on the reference model: Ø 10.0, 12.55 high (12.5 max on the sheet). Its body sits 0.2 above the board, on a 3 x 3 stand-off. Its leads are 1.0 square, where the sheet gives Ø 0.65. This part uses the sheet's leads.

The catalogue's other Fastron radial models aren't this part. Their bodies or pitches differ from the sheets, so they're left out (COVERAGE.md):

07P: Ø 7.5 at 3.5 and 5.0, and Ø 10.0 at 5.0. The sheet gives Ø 7.2 max.
07HCP: Ø 7.8 and 8.7. The sheet gives 8.3, or 9.2 with tube.
09HCP: Ø 12.5 at 7.0 and 9.0, and Ø 13.5. The sheet gives 12.3, or 12.7 with tube, at 7.0.
07HVP: Ø 9.5. The sheet gives 8.3, or 9.2 with tube.
11P: Ø 12.0. The sheet gives 10.5.

# Radial inductor

|---|---|---|---|---|---|

| 07M | shielded | 10 | 12.5 | 0.65 | 5.0 |

| 07P | with tube | 7.2 | 11.0 | 0.65 | 3.5 |

| 07HCP | open drum core | 8.3 | 10.0 | 0.70 | 5.0 |

| 07HCP/T | with tube | 9.2 | 10.5 | 0.70 | 5.0 |

| 09HCP | open drum core | 12.3 | 10.8 | 0.80 | 7.0 |

| 09HCP/T | with tube | 12.7 | 11.5 | 0.80 | 7.0 |

| 07HVP | open drum core | 8.3 | 10 | 0.7 | 5.0 |

| 07HVP/T | with tube | 9.2 | 10.5 | 0.7 | 5.0 |

| 11P | with tube | 10.5 | 15.0 | 0.7 | 5.0 |

Every inductance of a series has the same body. The sheets' part number tables give the inductances.

## Source

Fastron's data sheets, one page each, from Fastron's own site (<https://fastrongroup.com/>, "Pluggable Inductors (Pin Type Coils)", the series' product pages, files under `wp-content/uploads/2026/06/`). Each sheet's drawing gives the maximum body diameter and height, the lead diameter and the pitch.

- 07M, revision date 03 Aug 2022 (`07M.pdf`): Ø 10 max, 12.5 max, leads Ø 0.65, 5.0 apart.

- 07P, revision date 29 Jul 2022 (`07P.pdf`): Loose / Box [-50], Ø 7.2 max, 11.0 max, leads Ø 0.65, 3.5 apart. The Taped / Reel [-51] version, with formed leads at 5.0, isn't modelled.

- 07HCP and 07HCP/T, revision date 26 Aug 2022 (`07HCP-07HCP_T.pdf`): Ø 8.3 max and 10.0 max; with tube Ø 9.2 max and 10.5 max; leads Ø 0.70, 5.0 apart.

- 09HCP and 09HCP/T, revision date 29 Aug 2022 (`09HCP-09HCP_T.pdf`): Ø 12.3 max and 10.8 max; with tube Ø 12.7 max and 11.5 max; leads Ø 0.80, 7.0 apart.

- 07HVP and 07HVP/T, revision date 25 Aug 2022 (`07HVP-07HVP_T.pdf`): Ø 8.3 max and 10 max; with tube Ø 9.2 max and 10.5 max; leads Ø 0.7, 5.0 apart.

- 11P, revision date 12 Aug 2022 (`11P.pdf`): Ø 10.5 max, 15.0 max, leads Ø 0.7, 5.0 apart.

**Proportions, for looks only.** The sheets draw the shapes but dimension only the diameter and height:

- 07M's can has its top edge chamfered by 0.05 x the diameter.

- A tube follows the drum core's flanges. They're 0.2 x the height each, at the full diameter, and the waist between them is 0.88 x the diameter. The end edges are rounded by 0.1 x the radius.

- An open drum core has flanges 0.15 x the height thick, at the full diameter. The copper winding between them is 0.9 x the diameter, on a core of 0.5 x it, with its turns drawn 0.5 apart and 0.1 deep. The sheets give no wire size.

- The body touches the board. The leads end 3.0 below the board by default (`tail`). 09HCP's dimension "a" (2.0 or 3.0 max by part number) isn't modelled.

- Materials are for looks and a rough mass. Ferrite isn't in the material list, so alumina, a ceramic with a density of about 3.9 against ferrite's 4.8, stands in for the ferrite can and drum core. The tube types' body is one solid, the drum core with its thin plastic tube, and it's alumina too, because most of it is ferrite. The winding is copper and the leads are tinned copper.

## Catalogue models

`L_Radial_D10.0mm_P5.00mm_Fastron_07M` maps to 07M. Measured on the reference model: Ø 10.0, 12.55 high (12.5 max on the sheet). Its body sits 0.2 above the board, on a 3 x 3 stand-off. Its leads are 1.0 square, where the sheet gives Ø 0.65. This part uses the sheet's leads.

The catalogue's other Fastron radial models aren't this part. Their bodies or pitches differ from the sheets, so they're left out (`COVERAGE.md`):

- 07P: Ø 7.5 at 3.5 and 5.0, and Ø 10.0 at 5.0. The sheet gives Ø 7.2 max.

- 07HCP: Ø 7.8 and 8.7. The sheet gives 8.3, or 9.2 with tube.

- 09HCP: Ø 12.5 at 7.0 and 9.0, and Ø 13.5. The sheet gives 12.3, or 12.7 with tube, at 7.0.

- 07HVP: Ø 9.5. The sheet gives 8.3, or 9.2 with tube.

- 11P: Ø 12.0. The sheet gives 10.5.

# Radial inductor

A radial leaded inductor standing on the board: Fastron's pluggable pin type coils. Lead 1 is at the origin, lead 2 is at +X by the pitch, and the leads go straight down through the board. The body is centred between them.

| Series | Kind | Body Ø max | Height max | Lead Ø | Pitch |
|---|---|---|---|---|---|
| 07M | shielded | 10 | 12.5 | 0.65 | 5.0 |
| 07P | with tube | 7.2 | 11.0 | 0.65 | 3.5 |
| 07HCP | open drum core | 8.3 | 10.0 | 0.70 | 5.0 |
| 07HCP/T | with tube | 9.2 | 10.5 | 0.70 | 5.0 |
| 09HCP | open drum core | 12.3 | 10.8 | 0.80 | 7.0 |
| 09HCP/T | with tube | 12.7 | 11.5 | 0.80 | 7.0 |
| 07HVP | open drum core | 8.3 | 10 | 0.7 | 5.0 |
| 07HVP/T | with tube | 9.2 | 10.5 | 0.7 | 5.0 |
| 11P | with tube | 10.5 | 15.0 | 0.7 | 5.0 |

Every inductance of a series has the same body. The sheets' part number tables give the inductances.

## Source

Fastron's data sheets, one page each, from Fastron's own site (<https://fastrongroup.com/>, "Pluggable Inductors (Pin Type Coils)", the series' product pages, files under `wp-content/uploads/2026/06/`). Each sheet's drawing gives the maximum body diameter and height, the lead diameter and the pitch.

- 07M, revision date 03 Aug 2022 (`07M.pdf`): Ø 10 max, 12.5 max, leads Ø 0.65, 5.0 apart.
- 07P, revision date 29 Jul 2022 (`07P.pdf`): Loose / Box [-50], Ø 7.2 max, 11.0 max, leads Ø 0.65, 3.5 apart. The Taped / Reel [-51] version, with formed leads at 5.0, isn't modelled.
- 07HCP and 07HCP/T, revision date 26 Aug 2022 (`07HCP-07HCP_T.pdf`): Ø 8.3 max and 10.0 max; with tube Ø 9.2 max and 10.5 max; leads Ø 0.70, 5.0 apart.
- 09HCP and 09HCP/T, revision date 29 Aug 2022 (`09HCP-09HCP_T.pdf`): Ø 12.3 max and 10.8 max; with tube Ø 12.7 max and 11.5 max; leads Ø 0.80, 7.0 apart.
- 07HVP and 07HVP/T, revision date 25 Aug 2022 (`07HVP-07HVP_T.pdf`): Ø 8.3 max and 10 max; with tube Ø 9.2 max and 10.5 max; leads Ø 0.7, 5.0 apart.
- 11P, revision date 12 Aug 2022 (`11P.pdf`): Ø 10.5 max, 15.0 max, leads Ø 0.7, 5.0 apart.

**Proportions, for looks only.** The sheets draw the shapes but dimension only the diameter and height:

- 07M's can has its top edge chamfered by 0.05 x the diameter.
- A tube follows the drum core's flanges. They're 0.2 x the height each, at the full diameter, and the waist between them is 0.88 x the diameter. The end edges are rounded by 0.1 x the radius.
- An open drum core has flanges 0.15 x the height thick, at the full diameter. The copper winding between them is 0.9 x the diameter, on a core of 0.5 x it, with its turns drawn 0.5 apart and 0.1 deep. The sheets give no wire size.
- The body touches the board. The leads end 3.0 below the board by default (`tail`). 09HCP's dimension "a" (2.0 or 3.0 max by part number) isn't modelled.
- Materials are for looks and a rough mass. Ferrite isn't in the material list, so alumina, a ceramic with a density of about 3.9 against ferrite's 4.8, stands in for the ferrite can and drum core. The tube types' body is one solid, the drum core with its thin plastic tube, and it's alumina too, because most of it is ferrite. The winding is copper and the leads are tinned copper.

## Catalogue models

`L_Radial_D10.0mm_P5.00mm_Fastron_07M` maps to 07M. Measured on the reference model: Ø 10.0, 12.55 high (12.5 max on the sheet). Its body sits 0.2 above the board, on a 3 x 3 stand-off. Its leads are 1.0 square, where the sheet gives Ø 0.65. This part uses the sheet's leads.

The catalogue's other Fastron radial models aren't this part. Their bodies or pitches differ from the sheets, so they're left out (`COVERAGE.md`):

- 07P: Ø 7.5 at 3.5 and 5.0, and Ø 10.0 at 5.0. The sheet gives Ø 7.2 max.
- 07HCP: Ø 7.8 and 8.7. The sheet gives 8.3, or 9.2 with tube.
- 09HCP: Ø 12.5 at 7.0 and 9.0, and Ø 13.5. The sheet gives 12.3, or 12.7 with tube, at 7.0.
- 07HVP: Ø 9.5. The sheet gives 8.3, or 9.2 with tube.
- 11P: Ø 12.0. The sheet gives 10.5.

Use this part

STEVE

Open in STEVE

Open it in STEVE The STEVE runtime runs in STEVE: open the part there, or download the code and bundle.

Get the code

curl -o part.py "https://pythonparts.org/p/steve/radial-inductor/v/1.0.0/raw/part.py"

Raw files, bundle and API

part.py
pypart.toml
README.md
bundle.tar.gzthe package, as published

curl "https://pythonparts.org/api/v1/parts/steve/radial-inductor/1.0.0"

The version's JSON (parameters, presets, files); add /build?name=value for a build at other values.

About this part

steve115 parts

Profile

Alumina (aluminum oxide)Ceramics · Custom finish · 4 g/cm³
Copper (pure)Copper alloys · Custom finish · 8.96 g/cm³

Mass: 3.93 g

At the parameters shown in the viewer, 3 bodies.

License: MIT

Permissive: use, change and sell it; keep the copyright notice.

Runtime: STEVE
Requirements: None stated in the code
Built with: CadQuery 2.9.0.dev0
Published: Nov 6, 2026
Downloads: 0
Builds: 0
Stars: 0
Bundle: bbe105da0bbf…

#inductor #choke #radial #through-hole #fastron #electronics

Checks

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Radial leaded inductor standing on the board, Fastron's pluggable pin type coils. 07M is shielded; 07P, 11P and the /T versions have a tube over the drum core; 07HCP, 09HCP and 07HVP show their winding between the drum core's flanges. The series gives the body diameter and height, the lead diameter and the pitch, from Fastron's data sheets. Lead 1 at the origin, lead 2 along +X. See the README.

Radial inductor

Series	Kind	Body Ø max	Height max	Lead Ø	Pitch
07M	shielded	10	12.5	0.65	5.0
07P	with tube	7.2	11.0	0.65	3.5
07HCP	open drum core	8.3	10.0	0.70	5.0
07HCP/T	with tube	9.2	10.5	0.70	5.0
09HCP	open drum core	12.3	10.8	0.80	7.0
09HCP/T	with tube	12.7	11.5	0.80	7.0
07HVP	open drum core	8.3	10	0.7	5.0
07HVP/T	with tube	9.2	10.5	0.7	5.0
11P	with tube	10.5	15.0	0.7	5.0

Every inductance of a series has the same body. The sheets' part number tables give the inductances.

Source

07M, revision date 03 Aug 2022 (07M.pdf): Ø 10 max, 12.5 max, leads Ø 0.65, 5.0 apart.
07P, revision date 29 Jul 2022 (07P.pdf): Loose / Box [-50], Ø 7.2 max, 11.0 max, leads Ø 0.65, 3.5 apart. The Taped / Reel [-51] version, with formed leads at 5.0, isn't modelled.
07HCP and 07HCP/T, revision date 26 Aug 2022 (07HCP-07HCP_T.pdf): Ø 8.3 max and 10.0 max; with tube Ø 9.2 max and 10.5 max; leads Ø 0.70, 5.0 apart.
09HCP and 09HCP/T, revision date 29 Aug 2022 (09HCP-09HCP_T.pdf): Ø 12.3 max and 10.8 max; with tube Ø 12.7 max and 11.5 max; leads Ø 0.80, 7.0 apart.
07HVP and 07HVP/T, revision date 25 Aug 2022 (07HVP-07HVP_T.pdf): Ø 8.3 max and 10 max; with tube Ø 9.2 max and 10.5 max; leads Ø 0.7, 5.0 apart.
11P, revision date 12 Aug 2022 (11P.pdf): Ø 10.5 max, 15.0 max, leads Ø 0.7, 5.0 apart.

Proportions, for looks only. The sheets draw the shapes but dimension only the diameter and height:

07M's can has its top edge chamfered by 0.05 x the diameter.
A tube follows the drum core's flanges. They're 0.2 x the height each, at the full diameter, and the waist between them is 0.88 x the diameter. The end edges are rounded by 0.1 x the radius.
An open drum core has flanges 0.15 x the height thick, at the full diameter. The copper winding between them is 0.9 x the diameter, on a core of 0.5 x it, with its turns drawn 0.5 apart and 0.1 deep. The sheets give no wire size.
The body touches the board. The leads end 3.0 below the board by default (tail). 09HCP's dimension "a" (2.0 or 3.0 max by part number) isn't modelled.
Materials are for looks and a rough mass. Ferrite isn't in the material list, so alumina, a ceramic with a density of about 3.9 against ferrite's 4.8, stands in for the ferrite can and drum core. The tube types' body is one solid, the drum core with its thin plastic tube, and it's alumina too, because most of it is ferrite. The winding is copper and the leads are tinned copper.

Catalogue models

The catalogue's other Fastron radial models aren't this part. Their bodies or pitches differ from the sheets, so they're left out (COVERAGE.md):

07P: Ø 7.5 at 3.5 and 5.0, and Ø 10.0 at 5.0. The sheet gives Ø 7.2 max.
07HCP: Ø 7.8 and 8.7. The sheet gives 8.3, or 9.2 with tube.
09HCP: Ø 12.5 at 7.0 and 9.0, and Ø 13.5. The sheet gives 12.3, or 12.7 with tube, at 7.0.
07HVP: Ø 9.5. The sheet gives 8.3, or 9.2 with tube.
11P: Ø 12.0. The sheet gives 10.5.

1.0.0 Latest Nov 6, 2026 · 2 hours ago

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