steve/radial-ptc-fuse

Bel Fuse 0ZRE radial-leaded resettable PTC fuses, 0.05 to 2 A hold, 0ZRE0005FF to 0ZRE0200FF.

v1.0.1 Latest STEVE MIT 0

Open in STEVE

Isometric

Parameters

Preset13 sizes

Part number13 options

Bel Fuse 0ZRE part number (any packaging suffix): 0ZRE0005FF is 0.05 A hold, up to 0ZRE0200FF at 2 A.

Leads below the board0.5–7.6 mm

How far the leads run below the board (the leads are at least 7.6 long below the body as supplied).

Defaults built

part.py 79 lines · Python · STEVE runtime · checked

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"""Bel Fuse 0ZRE series radial-leaded resettable PTC fuse: an epoxy-coated polymer PTC body, a round disc (Fig. 1 and 4) or a rectangular

block (Fig. 2 and 3), standing on two straight leads fixed to its two faces. The body is centred on the Z axis, its faces normal to Y;

lead 1 at -X and +Y, lead 2 at +X and -Y, the leads C apart along X and F apart along Y. The board's top face is the XY plane, at the

foot of the coating, and the leads go straight down through it. The body and each lead are their own solids. Dimensions from Bel Fuse's

data sheet; see the README."""

import math

from steve import Model

part_number = "0ZRE0005FF" # Bel Fuse part number (any packaging suffix)

tail = 3.0 # mm Leads below the board

# Part number: (figure, A width max, B height max, C lead spacing typical, D lead length min, E thickness max, F lead offset typical),

# mm. Bel Fuse "Type 0ZRE Series", Rev. 0ZRE Apr2023 (www.belfuse.com/media/datasheets/products/circuit-protection/

# ds-cp-0zre-series.pdf), page 3, "Product Dimensions" (all dimensions in mm).

PARTS = {

"0ZRE0005FF": (1, 8.3, 10.7, 5.1, 7.6, 3.8, 1.6),

"0ZRE0008FF": (1, 8.3, 10.7, 5.1, 7.6, 3.8, 1.6),

"0ZRE0012FF": (1, 8.3, 10.7, 5.1, 7.6, 3.8, 1.6),

"0ZRE0016FF": (1, 9.9, 12.5, 5.1, 7.6, 3.8, 1.6),

"0ZRE0025FF": (2, 9.6, 17.4, 5.1, 7.6, 3.8, 1.8),

"0ZRE0033FF": (2, 11.4, 16.5, 5.1, 7.6, 3.8, 1.8),

"0ZRE0040FF": (2, 11.5, 19.5, 5.1, 7.6, 3.8, 1.8),

"0ZRE0055FF": (3, 14.0, 21.7, 5.1, 7.6, 4.1, 1.9),

"0ZRE0075FF": (3, 11.5, 23.4, 5.1, 7.6, 4.8, 1.9),

"0ZRE0100FF": (4, 18.7, 24.4, 10.2, 7.6, 5.1, 1.9),

"0ZRE0125FF": (4, 21.2, 27.4, 10.2, 7.6, 5.3, 1.9),

"0ZRE0150FF": (4, 23.4, 30.9, 10.2, 7.6, 5.3, 1.9),

"0ZRE0200FF": (3, 24.9, 33.8, 10.2, 7.6, 6.1, 1.9),

}

# Lead diameter by figure, the same page: Fig. 1 24 AWG 0.51, Fig. 2 22 AWG 0.65, Fig. 3 and 4 20 AWG 0.81.

LEADS = {1: 0.51, 2: 0.65, 3: 0.81, 4: 0.81}

# Proportions, for looks (the figures draw these but don't dimension them; README): a round body (Fig. 1 and 4) is a disc A across,

# its top at B; below it the coating runs down each lead to the board as a sleeve 2.5 x the lead's diameter. A rectangular body

# (Fig. 2 and 3) is a block A wide and B high from the board, its top corners rounded with a radius of 0.15 x A.

SLEEVE = 2.5

CORNER = 0.15

if part_number not in PARTS:

raise ValueError(f"no part {part_number!r}: {', '.join(PARTS)}")

fig, A, B, C, D, E, F = PARTS[part_number]

d = LEADS[fig]

round_body = fig in (1, 4)

model = Model()

# The body, drawn in the XZ plane at y = +E / 2 and extruded through to -E / 2.

model.plane("body_plane", on="XZ", offset=-E / 2, name="Body")

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

if round_body:

sk.circle("body_disc", (0, B - A / 2), A / 2)

else:

r = CORNER * A

arc = [(r * math.cos(math.pi / 2 * k / 6), r * math.sin(math.pi / 2 * k / 6)) for k in range(7)]

outline = [(-A / 2, 0), (A / 2, 0)]

outline += [(A / 2 - r + u, B - r + v) for u, v in arc]

outline += [(-A / 2 + r - u, B - r + v) for u, v in reversed(arc)]

sk.polyline("body_outline", outline, closed=True)

model.extrude("body", "body_sketch", distance=E, op="new", body="body_body", name="Body")

leads = [(-C / 2, F / 2), (C / 2, -F / 2)]

if round_body:

# Coating sleeves from the board up into the disc.

for i, (x, y) in enumerate(leads, 1):

with model.sketch(f"sleeve_{i}_sketch", on="XY", name="Coating") as sk:

sk.circle(f"sleeve_{i}_round", (x, y), SLEEVE * d / 2)

model.extrude(f"sleeve_{i}", f"sleeve_{i}_sketch", distance=B - A / 2, op="join", body="body_body", name="Coating")

# Leads: straight, from the tail below the board up to the body's foot.

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

bodies = []

for i, (x, y) in enumerate(leads, 1):

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

sk.circle(f"lead_{i}_round", (x, y), d / 2)

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 (page 3: "Insulating coating: Flame retardant epoxy"; "Lead material: Matte tin plated copper"; no weight given): the body is

# a carbon-filled polymer between two metal plates under the epoxy coat, shown as pmma (1.18, epoxy about 1.2), in a colour for looks;

# the leads copper.

model.material("pmma", bodies=["body_body"], color="#d9a02b")

model.material("copper", bodies=bodies, color="#c9ccd1")

result = model.result()

"""Bel Fuse 0ZRE series radial-leaded resettable PTC fuse: an epoxy-coated polymer PTC body, a round disc (Fig. 1 and 4) or a rectangular
block (Fig. 2 and 3), standing on two straight leads fixed to its two faces. The body is centred on the Z axis, its faces normal to Y;
lead 1 at -X and +Y, lead 2 at +X and -Y, the leads C apart along X and F apart along Y. The board's top face is the XY plane, at the
foot of the coating, and the leads go straight down through it. The body and each lead are their own solids. Dimensions from Bel Fuse's
data sheet; see the README."""
import math

from steve import Model

part_number = "0ZRE0005FF"  # Bel Fuse part number (any packaging suffix)
tail = 3.0  # mm Leads below the board

# Part number: (figure, A width max, B height max, C lead spacing typical, D lead length min, E thickness max, F lead offset typical),
# mm. Bel Fuse "Type 0ZRE Series", Rev. 0ZRE Apr2023 (www.belfuse.com/media/datasheets/products/circuit-protection/
# ds-cp-0zre-series.pdf), page 3, "Product Dimensions" (all dimensions in mm).
PARTS = {
    "0ZRE0005FF": (1, 8.3, 10.7, 5.1, 7.6, 3.8, 1.6),
    "0ZRE0008FF": (1, 8.3, 10.7, 5.1, 7.6, 3.8, 1.6),
    "0ZRE0012FF": (1, 8.3, 10.7, 5.1, 7.6, 3.8, 1.6),
    "0ZRE0016FF": (1, 9.9, 12.5, 5.1, 7.6, 3.8, 1.6),
    "0ZRE0025FF": (2, 9.6, 17.4, 5.1, 7.6, 3.8, 1.8),
    "0ZRE0033FF": (2, 11.4, 16.5, 5.1, 7.6, 3.8, 1.8),
    "0ZRE0040FF": (2, 11.5, 19.5, 5.1, 7.6, 3.8, 1.8),
    "0ZRE0055FF": (3, 14.0, 21.7, 5.1, 7.6, 4.1, 1.9),
    "0ZRE0075FF": (3, 11.5, 23.4, 5.1, 7.6, 4.8, 1.9),
    "0ZRE0100FF": (4, 18.7, 24.4, 10.2, 7.6, 5.1, 1.9),
    "0ZRE0125FF": (4, 21.2, 27.4, 10.2, 7.6, 5.3, 1.9),
    "0ZRE0150FF": (4, 23.4, 30.9, 10.2, 7.6, 5.3, 1.9),
    "0ZRE0200FF": (3, 24.9, 33.8, 10.2, 7.6, 6.1, 1.9),
}
# Lead diameter by figure, the same page: Fig. 1 24 AWG 0.51, Fig. 2 22 AWG 0.65, Fig. 3 and 4 20 AWG 0.81.
LEADS = {1: 0.51, 2: 0.65, 3: 0.81, 4: 0.81}
# Proportions, for looks (the figures draw these but don't dimension them; README): a round body (Fig. 1 and 4) is a disc A across,
# its top at B; below it the coating runs down each lead to the board as a sleeve 2.5 x the lead's diameter. A rectangular body
# (Fig. 2 and 3) is a block A wide and B high from the board, its top corners rounded with a radius of 0.15 x A.
SLEEVE = 2.5
CORNER = 0.15

if part_number not in PARTS:
    raise ValueError(f"no part {part_number!r}: {', '.join(PARTS)}")
fig, A, B, C, D, E, F = PARTS[part_number]
d = LEADS[fig]
round_body = fig in (1, 4)
model = Model()
# The body, drawn in the XZ plane at y = +E / 2 and extruded through to -E / 2.
model.plane("body_plane", on="XZ", offset=-E / 2, name="Body")
with model.sketch("body_sketch", on="body_plane", name="Body") as sk:
    if round_body:
        sk.circle("body_disc", (0, B - A / 2), A / 2)
    else:
        r = CORNER * A
        arc = [(r * math.cos(math.pi / 2 * k / 6), r * math.sin(math.pi / 2 * k / 6)) for k in range(7)]
        outline = [(-A / 2, 0), (A / 2, 0)]
        outline += [(A / 2 - r + u, B - r + v) for u, v in arc]
        outline += [(-A / 2 + r - u, B - r + v) for u, v in reversed(arc)]
        sk.polyline("body_outline", outline, closed=True)
model.extrude("body", "body_sketch", distance=E, op="new", body="body_body", name="Body")
leads = [(-C / 2, F / 2), (C / 2, -F / 2)]
if round_body:
    # Coating sleeves from the board up into the disc.
    for i, (x, y) in enumerate(leads, 1):
        with model.sketch(f"sleeve_{i}_sketch", on="XY", name="Coating") as sk:
            sk.circle(f"sleeve_{i}_round", (x, y), SLEEVE * d / 2)
        model.extrude(f"sleeve_{i}", f"sleeve_{i}_sketch", distance=B - A / 2, op="join", body="body_body", name="Coating")
# Leads: straight, from the tail below the board up to the body's foot.
model.plane("leads_start", on="XY", offset=-tail, name="Lead ends")
bodies = []
for i, (x, y) in enumerate(leads, 1):
    with model.sketch(f"lead_{i}_section", on="leads_start", name=f"Lead {i}") as sk:
        sk.circle(f"lead_{i}_round", (x, y), d / 2)
    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 (page 3: "Insulating coating: Flame retardant epoxy"; "Lead material: Matte tin plated copper"; no weight given): the body is
# a carbon-filled polymer between two metal plates under the epoxy coat, shown as pmma (1.18, epoxy about 1.2), in a colour for looks;
# the leads copper.
model.material("pmma", bodies=["body_body"], color="#d9a02b")
model.material("copper", bodies=bodies, color="#c9ccd1")
result = model.result()

pypart.toml 115 lines · TOML

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name = "steve/radial-ptc-fuse"

version = "1.0.1"

runtime = "steve"

license = "MIT"

summary = "Bel Fuse 0ZRE radial-leaded resettable PTC fuses, 0.05 to 2 A hold, 0ZRE0005FF to 0ZRE0200FF."

description = """Radial-leaded polymer PTC resettable fuses for board layouts and enclosures, as Bel Fuse draws its 0ZRE series: an epoxy-coated body, a round disc or a rectangular block, on two straight leads fixed to its two faces. The body and each lead are their own solids. Dimensions from Bel Fuse's data sheet. See the README."""

tags = ["fuse", "ptc", "resettable-fuse", "radial", "through-hole", "bel-fuse", "electronics"]

[parameters.part_number]

type = "choice"

default = "0ZRE0005FF"

choices = ["0ZRE0005FF", "0ZRE0008FF", "0ZRE0012FF", "0ZRE0016FF", "0ZRE0025FF", "0ZRE0033FF", "0ZRE0040FF", "0ZRE0055FF", "0ZRE0075FF", "0ZRE0100FF", "0ZRE0125FF", "0ZRE0150FF", "0ZRE0200FF"]

label = "Part number"

description = "Bel Fuse 0ZRE part number (any packaging suffix): 0ZRE0005FF is 0.05 A hold, up to 0ZRE0200FF at 2 A."

[parameters.tail]

type = "number"

default = 3.0

min = 0.5

max = 7.6

unit = "mm"

label = "Leads below the board"

description = "How far the leads run below the board (the leads are at least 7.6 long below the body as supplied)."

[[presets]]

id = "0ZRE0005FF"

title = "Bel Fuse 0ZRE0005FF, 0ZRE radial PTC resettable fuse, 0.05 A hold"

params = { part_number = "0ZRE0005FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0005FF", "0ZRE0005FF", "Fuse_BelFuse_0ZRE_0ZRE0005FF_L8.3mm_W3.8mm", "0ZRE PTC 0.05 A"]

standard = "Bel Fuse 0ZRE0005FF"

[[presets]]

id = "0ZRE0008FF"

title = "Bel Fuse 0ZRE0008FF, 0ZRE radial PTC resettable fuse, 0.08 A hold"

params = { part_number = "0ZRE0008FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0008FF", "0ZRE0008FF", "Fuse_BelFuse_0ZRE_0ZRE0008FF_L8.3mm_W3.8mm", "0ZRE PTC 0.08 A"]

standard = "Bel Fuse 0ZRE0008FF"

[[presets]]

id = "0ZRE0012FF"

title = "Bel Fuse 0ZRE0012FF, 0ZRE radial PTC resettable fuse, 0.12 A hold"

params = { part_number = "0ZRE0012FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0012FF", "0ZRE0012FF", "Fuse_BelFuse_0ZRE_0ZRE0012FF_L8.3mm_W3.8mm", "0ZRE PTC 0.12 A"]

standard = "Bel Fuse 0ZRE0012FF"

[[presets]]

id = "0ZRE0016FF"

title = "Bel Fuse 0ZRE0016FF, 0ZRE radial PTC resettable fuse, 0.16 A hold"

params = { part_number = "0ZRE0016FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0016FF", "0ZRE0016FF", "Fuse_BelFuse_0ZRE_0ZRE0016FF_L9.9mm_W3.8mm", "0ZRE PTC 0.16 A"]

standard = "Bel Fuse 0ZRE0016FF"

[[presets]]

id = "0ZRE0025FF"

title = "Bel Fuse 0ZRE0025FF, 0ZRE radial PTC resettable fuse, 0.25 A hold"

params = { part_number = "0ZRE0025FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0025FF", "0ZRE0025FF", "Fuse_BelFuse_0ZRE_0ZRE0025FF_L9.6mm_W3.8mm", "0ZRE PTC 0.25 A"]

standard = "Bel Fuse 0ZRE0025FF"

[[presets]]

id = "0ZRE0033FF"

title = "Bel Fuse 0ZRE0033FF, 0ZRE radial PTC resettable fuse, 0.33 A hold"

params = { part_number = "0ZRE0033FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0033FF", "0ZRE0033FF", "Fuse_BelFuse_0ZRE_0ZRE0033FF_L11.4mm_W3.8mm", "0ZRE PTC 0.33 A"]

standard = "Bel Fuse 0ZRE0033FF"

[[presets]]

id = "0ZRE0040FF"

title = "Bel Fuse 0ZRE0040FF, 0ZRE radial PTC resettable fuse, 0.4 A hold"

params = { part_number = "0ZRE0040FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0040FF", "0ZRE0040FF", "Fuse_BelFuse_0ZRE_0ZRE0040FF_L11.5mm_W3.8mm", "0ZRE PTC 0.4 A"]

standard = "Bel Fuse 0ZRE0040FF"

[[presets]]

id = "0ZRE0055FF"

title = "Bel Fuse 0ZRE0055FF, 0ZRE radial PTC resettable fuse, 0.55 A hold"

params = { part_number = "0ZRE0055FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0055FF", "0ZRE0055FF", "Fuse_BelFuse_0ZRE_0ZRE0055FF_L14.0mm_W4.1mm", "0ZRE PTC 0.55 A"]

standard = "Bel Fuse 0ZRE0055FF"

[[presets]]

id = "0ZRE0075FF"

title = "Bel Fuse 0ZRE0075FF, 0ZRE radial PTC resettable fuse, 0.75 A hold"

params = { part_number = "0ZRE0075FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0075FF", "0ZRE0075FF", "Fuse_BelFuse_0ZRE_0ZRE0075FF_L11.5mm_W4.8mm", "0ZRE PTC 0.75 A"]

standard = "Bel Fuse 0ZRE0075FF"

[[presets]]

id = "0ZRE0100FF"

title = "Bel Fuse 0ZRE0100FF, 0ZRE radial PTC resettable fuse, 1.0 A hold"

params = { part_number = "0ZRE0100FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0100FF", "0ZRE0100FF", "Fuse_BelFuse_0ZRE_0ZRE0100FF_L18.7mm_W5.1mm", "0ZRE PTC 1.0 A"]

standard = "Bel Fuse 0ZRE0100FF"

[[presets]]

id = "0ZRE0125FF"

title = "Bel Fuse 0ZRE0125FF, 0ZRE radial PTC resettable fuse, 1.25 A hold"

params = { part_number = "0ZRE0125FF" }

aliases = ["Fuse", "Bel Fuse 0ZRE0125FF", "0ZRE0125FF", "Fuse_BelFuse_0ZRE_0ZRE0125FF_L21.2mm_W5.3mm", "0ZRE PTC 1.25 A"]

100

standard = "Bel Fuse 0ZRE0125FF"

101

102

[[presets]]

103

id = "0ZRE0150FF"

104

title = "Bel Fuse 0ZRE0150FF, 0ZRE radial PTC resettable fuse, 1.5 A hold"

105

params = { part_number = "0ZRE0150FF" }

106

aliases = ["Fuse", "Bel Fuse 0ZRE0150FF", "0ZRE0150FF", "Fuse_BelFuse_0ZRE_0ZRE0150FF_L23.4mm_W5.3mm", "0ZRE PTC 1.5 A"]

107

standard = "Bel Fuse 0ZRE0150FF"

108

109

[[presets]]

110

id = "0ZRE0200FF"

111

title = "Bel Fuse 0ZRE0200FF, 0ZRE radial PTC resettable fuse, 2.0 A hold"

112

params = { part_number = "0ZRE0200FF" }

113

aliases = ["Fuse", "Bel Fuse 0ZRE0200FF", "0ZRE0200FF", "Fuse_BelFuse_0ZRE_0ZRE0200FF_L24.9mm_W6.1mm", "0ZRE PTC 2.0 A"]

114

standard = "Bel Fuse 0ZRE0200FF"

115

name = "steve/radial-ptc-fuse"
version = "1.0.1"
runtime = "steve"
license = "MIT"
summary = "Bel Fuse 0ZRE radial-leaded resettable PTC fuses, 0.05 to 2 A hold, 0ZRE0005FF to 0ZRE0200FF."
description = """Radial-leaded polymer PTC resettable fuses for board layouts and enclosures, as Bel Fuse draws its 0ZRE series: an epoxy-coated body, a round disc or a rectangular block, on two straight leads fixed to its two faces. The body and each lead are their own solids. Dimensions from Bel Fuse's data sheet. See the README."""
tags = ["fuse", "ptc", "resettable-fuse", "radial", "through-hole", "bel-fuse", "electronics"]

[parameters.part_number]
type = "choice"
default = "0ZRE0005FF"
choices = ["0ZRE0005FF", "0ZRE0008FF", "0ZRE0012FF", "0ZRE0016FF", "0ZRE0025FF", "0ZRE0033FF", "0ZRE0040FF", "0ZRE0055FF", "0ZRE0075FF", "0ZRE0100FF", "0ZRE0125FF", "0ZRE0150FF", "0ZRE0200FF"]
label = "Part number"
description = "Bel Fuse 0ZRE part number (any packaging suffix): 0ZRE0005FF is 0.05 A hold, up to 0ZRE0200FF at 2 A."

[parameters.tail]
type = "number"
default = 3.0
min = 0.5
max = 7.6
unit = "mm"
label = "Leads below the board"
description = "How far the leads run below the board (the leads are at least 7.6 long below the body as supplied)."

[[presets]]
id = "0ZRE0005FF"
title = "Bel Fuse 0ZRE0005FF, 0ZRE radial PTC resettable fuse, 0.05 A hold"
params = { part_number = "0ZRE0005FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0005FF", "0ZRE0005FF", "Fuse_BelFuse_0ZRE_0ZRE0005FF_L8.3mm_W3.8mm", "0ZRE PTC 0.05 A"]
standard = "Bel Fuse 0ZRE0005FF"

[[presets]]
id = "0ZRE0008FF"
title = "Bel Fuse 0ZRE0008FF, 0ZRE radial PTC resettable fuse, 0.08 A hold"
params = { part_number = "0ZRE0008FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0008FF", "0ZRE0008FF", "Fuse_BelFuse_0ZRE_0ZRE0008FF_L8.3mm_W3.8mm", "0ZRE PTC 0.08 A"]
standard = "Bel Fuse 0ZRE0008FF"

[[presets]]
id = "0ZRE0012FF"
title = "Bel Fuse 0ZRE0012FF, 0ZRE radial PTC resettable fuse, 0.12 A hold"
params = { part_number = "0ZRE0012FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0012FF", "0ZRE0012FF", "Fuse_BelFuse_0ZRE_0ZRE0012FF_L8.3mm_W3.8mm", "0ZRE PTC 0.12 A"]
standard = "Bel Fuse 0ZRE0012FF"

[[presets]]
id = "0ZRE0016FF"
title = "Bel Fuse 0ZRE0016FF, 0ZRE radial PTC resettable fuse, 0.16 A hold"
params = { part_number = "0ZRE0016FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0016FF", "0ZRE0016FF", "Fuse_BelFuse_0ZRE_0ZRE0016FF_L9.9mm_W3.8mm", "0ZRE PTC 0.16 A"]
standard = "Bel Fuse 0ZRE0016FF"

[[presets]]
id = "0ZRE0025FF"
title = "Bel Fuse 0ZRE0025FF, 0ZRE radial PTC resettable fuse, 0.25 A hold"
params = { part_number = "0ZRE0025FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0025FF", "0ZRE0025FF", "Fuse_BelFuse_0ZRE_0ZRE0025FF_L9.6mm_W3.8mm", "0ZRE PTC 0.25 A"]
standard = "Bel Fuse 0ZRE0025FF"

[[presets]]
id = "0ZRE0033FF"
title = "Bel Fuse 0ZRE0033FF, 0ZRE radial PTC resettable fuse, 0.33 A hold"
params = { part_number = "0ZRE0033FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0033FF", "0ZRE0033FF", "Fuse_BelFuse_0ZRE_0ZRE0033FF_L11.4mm_W3.8mm", "0ZRE PTC 0.33 A"]
standard = "Bel Fuse 0ZRE0033FF"

[[presets]]
id = "0ZRE0040FF"
title = "Bel Fuse 0ZRE0040FF, 0ZRE radial PTC resettable fuse, 0.4 A hold"
params = { part_number = "0ZRE0040FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0040FF", "0ZRE0040FF", "Fuse_BelFuse_0ZRE_0ZRE0040FF_L11.5mm_W3.8mm", "0ZRE PTC 0.4 A"]
standard = "Bel Fuse 0ZRE0040FF"

[[presets]]
id = "0ZRE0055FF"
title = "Bel Fuse 0ZRE0055FF, 0ZRE radial PTC resettable fuse, 0.55 A hold"
params = { part_number = "0ZRE0055FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0055FF", "0ZRE0055FF", "Fuse_BelFuse_0ZRE_0ZRE0055FF_L14.0mm_W4.1mm", "0ZRE PTC 0.55 A"]
standard = "Bel Fuse 0ZRE0055FF"

[[presets]]
id = "0ZRE0075FF"
title = "Bel Fuse 0ZRE0075FF, 0ZRE radial PTC resettable fuse, 0.75 A hold"
params = { part_number = "0ZRE0075FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0075FF", "0ZRE0075FF", "Fuse_BelFuse_0ZRE_0ZRE0075FF_L11.5mm_W4.8mm", "0ZRE PTC 0.75 A"]
standard = "Bel Fuse 0ZRE0075FF"

[[presets]]
id = "0ZRE0100FF"
title = "Bel Fuse 0ZRE0100FF, 0ZRE radial PTC resettable fuse, 1.0 A hold"
params = { part_number = "0ZRE0100FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0100FF", "0ZRE0100FF", "Fuse_BelFuse_0ZRE_0ZRE0100FF_L18.7mm_W5.1mm", "0ZRE PTC 1.0 A"]
standard = "Bel Fuse 0ZRE0100FF"

[[presets]]
id = "0ZRE0125FF"
title = "Bel Fuse 0ZRE0125FF, 0ZRE radial PTC resettable fuse, 1.25 A hold"
params = { part_number = "0ZRE0125FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0125FF", "0ZRE0125FF", "Fuse_BelFuse_0ZRE_0ZRE0125FF_L21.2mm_W5.3mm", "0ZRE PTC 1.25 A"]
standard = "Bel Fuse 0ZRE0125FF"

[[presets]]
id = "0ZRE0150FF"
title = "Bel Fuse 0ZRE0150FF, 0ZRE radial PTC resettable fuse, 1.5 A hold"
params = { part_number = "0ZRE0150FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0150FF", "0ZRE0150FF", "Fuse_BelFuse_0ZRE_0ZRE0150FF_L23.4mm_W5.3mm", "0ZRE PTC 1.5 A"]
standard = "Bel Fuse 0ZRE0150FF"

[[presets]]
id = "0ZRE0200FF"
title = "Bel Fuse 0ZRE0200FF, 0ZRE radial PTC resettable fuse, 2.0 A hold"
params = { part_number = "0ZRE0200FF" }
aliases = ["Fuse", "Bel Fuse 0ZRE0200FF", "0ZRE0200FF", "Fuse_BelFuse_0ZRE_0ZRE0200FF_L24.9mm_W6.1mm", "0ZRE PTC 2.0 A"]
standard = "Bel Fuse 0ZRE0200FF"

README.md 42 lines · Markdown

Download

Radial PTC fuse

Bel Fuse's 0ZRE series of radial-leaded polymer PTC resettable fuses. Each is an epoxy-coated body on two straight leads fixed to its two faces. The body is either a round disc (the sheet's Fig. 1 and 4) or a rectangular block (Fig. 2 and 3).

The body is centred on the Z axis, with its faces normal to Y. Lead 1 is at -X and +Y, and lead 2 at +X and -Y. The leads are C apart along X and F apart along Y. The board's top face is the XY plane, at the foot of the coating, and the leads go straight down through it for tail. The body and each lead are their own solids.

Source

Bel Fuse Inc., "Type 0ZRE Series", Rev. 0ZRE Apr2023, https://www.belfuse.com/media/datasheets/products/circuit-protection/ds-cp-0zre-series.pdf. The table is from page 3, "Product Dimensions" (all dimensions in mm). The hold currents are from page 1, "Electrical Characteristics".

Part number	Hold (A)	Fig.	A width max	B height max	C lead spacing typ.	D lead length min	E thickness max	F lead offset typ.
0ZRE0005FF	0.05	1	8.3	10.7	5.1	7.6	3.8	1.6
0ZRE0008FF	0.08	1	8.3	10.7	5.1	7.6	3.8	1.6
0ZRE0012FF	0.12	1	8.3	10.7	5.1	7.6	3.8	1.6
0ZRE0016FF	0.16	1	9.9	12.5	5.1	7.6	3.8	1.6
0ZRE0025FF	0.25	2	9.6	17.4	5.1	7.6	3.8	1.8
0ZRE0033FF	0.33	2	11.4	16.5	5.1	7.6	3.8	1.8
0ZRE0040FF	0.40	2	11.5	19.5	5.1	7.6	3.8	1.8
0ZRE0055FF	0.55	3	14.0	21.7	5.1	7.6	4.1	1.9
0ZRE0075FF	0.75	3	11.5	23.4	5.1	7.6	4.8	1.9
0ZRE0100FF	1.00	4	18.7	24.4	10.2	7.6	5.1	1.9
0ZRE0125FF	1.25	4	21.2	27.4	10.2	7.6	5.3	1.9
0ZRE0150FF	1.50	4	23.4	30.9	10.2	7.6	5.3	1.9
0ZRE0200FF	2.00	3	24.9	33.8	10.2	7.6	6.1	1.9

The same page gives the lead size by figure: Fig. 1 is 24 AWG, Ø 0.51. Fig. 2 is 22 AWG, Ø 0.65. Fig. 3 and 4 are 20 AWG, Ø 0.81. The figures draw B from the body's top down to where the leads leave the coating, and D below that. The model uses the maximum A, B and E and the typical C and F. The packaging suffix (1C, 1E, 1A, 2A and so on) doesn't change the part.

Proportions, stated plainly. The figures draw these but don't dimension them:

A round body is a disc A across, with its top at B. Below the disc, the coating runs down each lead to the board as a sleeve 2.5 times the lead's diameter.
A rectangular body is a block A wide and B high from the board. Its top corners are rounded with a radius of 0.15 times A.
The leads are straight. The figures' kinks where the leads leave the coating aren't modelled.

Materials. Page 3 gives "Insulating coating: Flame retardant epoxy" and "Lead material: Matte tin plated copper", and no weight, so the mass isn't checked. The body is a carbon-filled polymer between two metal plates under the epoxy coat. It is shown as pmma (1.18; epoxy is about 1.2), in a colour for looks. The leads are copper.

Catalogue models

The old catalogue's 13 Fuse_BelFuse_0ZRE_* entries have no reference models. Each names an exact Bel Fuse part number, with the sheet's A and E as its L and W (for example 0ZRE0005FF_L8.3mm_W3.8mm), and each maps to the preset of that number.

The family's chip fuses are the chip-fuse part's, and its fuse holders are left with their reasons in COVERAGE.md.

# Radial PTC fuse

The body is centred on the Z axis, with its faces normal to Y. Lead 1 is at -X and +Y, and lead 2 at +X and -Y. The leads are C apart along X and F apart along Y. The board's top face is the XY plane, at the foot of the coating, and the leads go straight down through it for `tail`. The body and each lead are their own solids.

## Source

Bel Fuse Inc., "Type 0ZRE Series", Rev. 0ZRE Apr2023, <https://www.belfuse.com/media/datasheets/products/circuit-protection/ds-cp-0zre-series.pdf>. The table is from page 3, "Product Dimensions" (all dimensions in mm). The hold currents are from page 1, "Electrical Characteristics".

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

| 0ZRE0005FF | 0.05 | 1 | 8.3 | 10.7 | 5.1 | 7.6 | 3.8 | 1.6 |

| 0ZRE0008FF | 0.08 | 1 | 8.3 | 10.7 | 5.1 | 7.6 | 3.8 | 1.6 |

| 0ZRE0012FF | 0.12 | 1 | 8.3 | 10.7 | 5.1 | 7.6 | 3.8 | 1.6 |

| 0ZRE0016FF | 0.16 | 1 | 9.9 | 12.5 | 5.1 | 7.6 | 3.8 | 1.6 |

| 0ZRE0025FF | 0.25 | 2 | 9.6 | 17.4 | 5.1 | 7.6 | 3.8 | 1.8 |

| 0ZRE0033FF | 0.33 | 2 | 11.4 | 16.5 | 5.1 | 7.6 | 3.8 | 1.8 |

| 0ZRE0040FF | 0.40 | 2 | 11.5 | 19.5 | 5.1 | 7.6 | 3.8 | 1.8 |

| 0ZRE0055FF | 0.55 | 3 | 14.0 | 21.7 | 5.1 | 7.6 | 4.1 | 1.9 |

| 0ZRE0075FF | 0.75 | 3 | 11.5 | 23.4 | 5.1 | 7.6 | 4.8 | 1.9 |

| 0ZRE0100FF | 1.00 | 4 | 18.7 | 24.4 | 10.2 | 7.6 | 5.1 | 1.9 |

| 0ZRE0125FF | 1.25 | 4 | 21.2 | 27.4 | 10.2 | 7.6 | 5.3 | 1.9 |

| 0ZRE0150FF | 1.50 | 4 | 23.4 | 30.9 | 10.2 | 7.6 | 5.3 | 1.9 |

| 0ZRE0200FF | 2.00 | 3 | 24.9 | 33.8 | 10.2 | 7.6 | 6.1 | 1.9 |

**Proportions, stated plainly.** The figures draw these but don't dimension them:

- A round body is a disc A across, with its top at B. Below the disc, the coating runs down each lead to the board as a sleeve 2.5 times the lead's diameter.

- A rectangular body is a block A wide and B high from the board. Its top corners are rounded with a radius of 0.15 times A.

- The leads are straight. The figures' kinks where the leads leave the coating aren't modelled.

**Materials.** Page 3 gives "Insulating coating: Flame retardant epoxy" and "Lead material: Matte tin plated copper", and no weight, so the mass isn't checked. The body is a carbon-filled polymer between two metal plates under the epoxy coat. It is shown as pmma (1.18; epoxy is about 1.2), in a colour for looks. The leads are copper.

## Catalogue models

The old catalogue's 13 `Fuse_BelFuse_0ZRE_*` entries have no reference models. Each names an exact Bel Fuse part number, with the sheet's A and E as its L and W (for example `0ZRE0005FF_L8.3mm_W3.8mm`), and each maps to the preset of that number.

The family's chip fuses are the chip-fuse part's, and its fuse holders are left with their reasons in `COVERAGE.md`.

# Radial PTC fuse

Bel Fuse's 0ZRE series of radial-leaded polymer PTC resettable fuses. Each is an epoxy-coated body on two straight leads fixed to its two faces. The body is either a round disc (the sheet's Fig. 1 and 4) or a rectangular block (Fig. 2 and 3).

The body is centred on the Z axis, with its faces normal to Y. Lead 1 is at -X and +Y, and lead 2 at +X and -Y. The leads are C apart along X and F apart along Y. The board's top face is the XY plane, at the foot of the coating, and the leads go straight down through it for `tail`. The body and each lead are their own solids.

## Source

Bel Fuse Inc., "Type 0ZRE Series", Rev. 0ZRE Apr2023, <https://www.belfuse.com/media/datasheets/products/circuit-protection/ds-cp-0zre-series.pdf>. The table is from page 3, "Product Dimensions" (all dimensions in mm). The hold currents are from page 1, "Electrical Characteristics".

| Part number | Hold (A) | Fig. | A width max | B height max | C lead spacing typ. | D lead length min | E thickness max | F lead offset typ. |
|---|---|---|---|---|---|---|---|---|
| 0ZRE0005FF | 0.05 | 1 | 8.3 | 10.7 | 5.1 | 7.6 | 3.8 | 1.6 |
| 0ZRE0008FF | 0.08 | 1 | 8.3 | 10.7 | 5.1 | 7.6 | 3.8 | 1.6 |
| 0ZRE0012FF | 0.12 | 1 | 8.3 | 10.7 | 5.1 | 7.6 | 3.8 | 1.6 |
| 0ZRE0016FF | 0.16 | 1 | 9.9 | 12.5 | 5.1 | 7.6 | 3.8 | 1.6 |
| 0ZRE0025FF | 0.25 | 2 | 9.6 | 17.4 | 5.1 | 7.6 | 3.8 | 1.8 |
| 0ZRE0033FF | 0.33 | 2 | 11.4 | 16.5 | 5.1 | 7.6 | 3.8 | 1.8 |
| 0ZRE0040FF | 0.40 | 2 | 11.5 | 19.5 | 5.1 | 7.6 | 3.8 | 1.8 |
| 0ZRE0055FF | 0.55 | 3 | 14.0 | 21.7 | 5.1 | 7.6 | 4.1 | 1.9 |
| 0ZRE0075FF | 0.75 | 3 | 11.5 | 23.4 | 5.1 | 7.6 | 4.8 | 1.9 |
| 0ZRE0100FF | 1.00 | 4 | 18.7 | 24.4 | 10.2 | 7.6 | 5.1 | 1.9 |
| 0ZRE0125FF | 1.25 | 4 | 21.2 | 27.4 | 10.2 | 7.6 | 5.3 | 1.9 |
| 0ZRE0150FF | 1.50 | 4 | 23.4 | 30.9 | 10.2 | 7.6 | 5.3 | 1.9 |
| 0ZRE0200FF | 2.00 | 3 | 24.9 | 33.8 | 10.2 | 7.6 | 6.1 | 1.9 |

The same page gives the lead size by figure: Fig. 1 is 24 AWG, Ø 0.51. Fig. 2 is 22 AWG, Ø 0.65. Fig. 3 and 4 are 20 AWG, Ø 0.81. The figures draw B from the body's top down to where the leads leave the coating, and D below that. The model uses the maximum A, B and E and the typical C and F. The packaging suffix (1C, 1E, 1A, 2A and so on) doesn't change the part.

**Proportions, stated plainly.** The figures draw these but don't dimension them:

- A round body is a disc A across, with its top at B. Below the disc, the coating runs down each lead to the board as a sleeve 2.5 times the lead's diameter.
- A rectangular body is a block A wide and B high from the board. Its top corners are rounded with a radius of 0.15 times A.
- The leads are straight. The figures' kinks where the leads leave the coating aren't modelled.

**Materials.** Page 3 gives "Insulating coating: Flame retardant epoxy" and "Lead material: Matte tin plated copper", and no weight, so the mass isn't checked. The body is a carbon-filled polymer between two metal plates under the epoxy coat. It is shown as pmma (1.18; epoxy is about 1.2), in a colour for looks. The leads are copper.

## Catalogue models

The old catalogue's 13 `Fuse_BelFuse_0ZRE_*` entries have no reference models. Each names an exact Bel Fuse part number, with the sheet's A and E as its L and W (for example `0ZRE0005FF_L8.3mm_W3.8mm`), and each maps to the preset of that number.

The family's chip fuses are the chip-fuse part's, and its fuse holders are left with their reasons in `COVERAGE.md`.

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-ptc-fuse/v/1.0.1/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-ptc-fuse/1.0.1"

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

About this part

steve146 parts

Profile

PMMA (acrylic)Plastics · Custom finish · 1.17 g/cm³
Copper (pure)Copper alloys · Custom finish · 8.96 g/cm³

Mass: 0.26 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: 1319930b80ab…

#fuse #ptc #resettable-fuse #radial #through-hole #bel-fuse #electronics

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Radial-leaded polymer PTC resettable fuses for board layouts and enclosures, as Bel Fuse draws its 0ZRE series: an epoxy-coated body, a round disc or a rectangular block, on two straight leads fixed to its two faces. The body and each lead are their own solids. Dimensions from Bel Fuse's data sheet. See the README.

Radial PTC fuse

Source

Part number	Hold (A)	Fig.	A width max	B height max	C lead spacing typ.	D lead length min	E thickness max	F lead offset typ.
0ZRE0005FF	0.05	1	8.3	10.7	5.1	7.6	3.8	1.6
0ZRE0008FF	0.08	1	8.3	10.7	5.1	7.6	3.8	1.6
0ZRE0012FF	0.12	1	8.3	10.7	5.1	7.6	3.8	1.6
0ZRE0016FF	0.16	1	9.9	12.5	5.1	7.6	3.8	1.6
0ZRE0025FF	0.25	2	9.6	17.4	5.1	7.6	3.8	1.8
0ZRE0033FF	0.33	2	11.4	16.5	5.1	7.6	3.8	1.8
0ZRE0040FF	0.40	2	11.5	19.5	5.1	7.6	3.8	1.8
0ZRE0055FF	0.55	3	14.0	21.7	5.1	7.6	4.1	1.9
0ZRE0075FF	0.75	3	11.5	23.4	5.1	7.6	4.8	1.9
0ZRE0100FF	1.00	4	18.7	24.4	10.2	7.6	5.1	1.9
0ZRE0125FF	1.25	4	21.2	27.4	10.2	7.6	5.3	1.9
0ZRE0150FF	1.50	4	23.4	30.9	10.2	7.6	5.3	1.9
0ZRE0200FF	2.00	3	24.9	33.8	10.2	7.6	6.1	1.9

Proportions, stated plainly. The figures draw these but don't dimension them:

A round body is a disc A across, with its top at B. Below the disc, the coating runs down each lead to the board as a sleeve 2.5 times the lead's diameter.
A rectangular body is a block A wide and B high from the board. Its top corners are rounded with a radius of 0.15 times A.
The leads are straight. The figures' kinks where the leads leave the coating aren't modelled.

Catalogue models

The family's chip fuses are the chip-fuse part's, and its fuse holders are left with their reasons in COVERAGE.md.

1.0.1 Latest Nov 6, 2026 · 1 hour ago Compare with 1.0.0
1.0.0 Nov 6, 2026 · 1 hour ago

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Radial PTC fuse

Source

Catalogue models

Radial PTC fuse

Source

Catalogue models

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