3 files changed, +146 −22

part.py +69 −6

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		@@ -5,7 +5,7 @@
5	5	from steve import Model
6	6	import math
7	7
8		-package = "TO-220AB" # TO-220AB, TO-220AC, TO-247AC, TO-92, TO-18 or TO-18-2
	8	+package = "TO-220AB" # TO-220AB, TO-220AC, TO-220F, TO-220F-2, TO-247AC, TO-126, TO-92, TO-18, TO-18-2, TO-39 or TO-46
9	9	detail = "full" # full: body, tab and leads; simple: the body and tab only
10	10
11	11	# Vishay Siliconix, "TO-220AB (High Voltage)", Package Information, document 92506, revision 30-Sep-2024 (DWG 6031), page 2 table; and
		@@ -41,9 +41,37 @@
41	41	# modelled; the TO-247's side slots are half-round (Ø E2) and the copper ring P1 isn't modelled; the TO-92's flat face is cut from a round body
42	42	# W across; every lead's shoulder narrows to the lead in one step.
43	43	NOTCH = (1.4, 2.8)
	44	+# Central Semiconductor, "Package Details - TO-39" (REV R1, R0 21-June 2004) and "Package Details - TO-46" (REV R2, R0 17-July 2008), tables
	45	+# (min, max) in mm, the letters as TO18's (C: the max, the only value; E: 12.70 min). TO-46's sheet names the tab width J and its length K;
	46	+# here they are I and J, as on the TO-18 and TO-39 sheets.
	47	+TO39 = dict(A=(8.51, 9.40), B=(8.00, 8.51), C=(1.02, 1.02), D=(6.10, 6.60), E=(12.70, 12.70), F=(0.41, 0.53), G=(5.08, 5.08), H=(2.54, 2.54),
	48	+ I=(0.71, 0.86), J=(0.74, 1.14))
	49	+TO46 = dict(A=(5.31, 5.84), B=(4.52, 4.95), C=(1.02, 1.02), D=(1.65, 2.16), E=(12.70, 12.70), F=(0.41, 0.53), G=(2.54, 2.54), H=(1.27, 1.27),
	50	+ I=(0.91, 1.17), J=(0.71, 1.22))
	51	+CANS = {"TO-18": TO18, "TO-18-2": TO18, "TO-39": TO39, "TO-46": TO46}
	52	+# Central Semiconductor, "Package Details - TO-126" (REV R3, R0 21-June 2004), table (min, max) in mm, the middle (single values as given):
	53	+# A body thickness, B the leads' centre plane from the back, C lead thickness, D width, E hole centre below the top, F hole diameter,
	54	+# G body height, H lead length below the body (shoulder included), J lead width, K pitch, L lead 1 to lead 3, M shoulder width, N shoulder
	55	+# length. The back carries the mounting plate ("Mounting Plate Common to Pin 2").
	56	+TO126 = dict(A=(2.40, 2.80), B=(1.27, 1.27), C=(0.38, 0.75), D=(7.40, 8.50), E=(3.75, 3.75), F=(3.00, 3.40), G=(10.50, 12.00),
	57	+ H=(15.70, 15.70), J=(0.62, 0.90), K=(2.25, 2.25), L=(4.50, 4.50), M=(1.14, 1.40), N=(2.10, 2.10))
	58	+# Central Semiconductor, "Package Details - TO-220FP Case" (REV R5, R2 06-June 2023) and "TO-220FP-2 Case" (REV R2, R0 28-January 2015),
	59	+# tables (min, max) in mm; where a sheet gives only a maximum the model uses it. A body thickness, B the thinner top part's thickness,
	60	+# C the leads' centre plane from the back, D lead thickness, E width, F the thin top part's height, G body height, H shoulder length,
	61	+# J lead length below the body, K lead width, L pitch (TO-220FP-2: each lead's offset from the centre line), M hole centre below the top,
	62	+# N hole diameter, P shoulder width. The fully moulded body has no exposed metal.
	63	+TO220F = dict(A=(4.20, 5.12), B=(2.30, 3.30), C=(2.50, 3.10), D=(0.80, 0.80), E=(9.70, 10.63), F=(6.06, 7.00), G=(14.80, 16.25),
	64	+ H=(4.50, 4.50), J=(12.78, 13.80), K=(0.50, 0.90), L=(2.54, 2.54), M=(2.55, 3.55), N=(2.95, 3.40), P=(1.00, 1.47))
	65	+TO220F2 = dict(A=(4.80, 4.80), B=(3.12, 3.12), C=(2.50, 2.90), D=(0.81, 0.81), E=(10.31, 10.31), F=(6.30, 6.90), G=(14.80, 15.40),
	66	+ H=(4.10, 4.10), J=(13.00, 13.80), K=(0.90, 0.90), L=(2.55, 2.55), M=(2.55, 2.85), N=(3.00, 3.40), P=(1.40, 1.40))
	67	+# Proportions, for looks: the TO-126's mounting plate on the back is 0.3 thick, set in 0.08 x the width from the sides and the top and
	68	+# ending 0.1 x the height above the bottom (drawn dashed in the front view, not dimensioned); the TO-220FP-2's cut-off middle lead stub
	69	+# (O, P, Q on its sheet) isn't modelled.
	70	+PLATE_T = 0.3
44	71
45		-if package not in ("TO-220AB", "TO-220AC", "TO-247AC", "TO-92", "TO-18", "TO-18-2"):
46		- raise ValueError("package: TO-220AB, TO-220AC, TO-247AC, TO-92, TO-18 or TO-18-2")
	72	+PACKAGES = ("TO-220AB", "TO-220AC", "TO-220F", "TO-220F-2", "TO-247AC", "TO-126", "TO-92", "TO-18", "TO-18-2", "TO-39", "TO-46")
	73	+if package not in PACKAGES:
	74	+ raise ValueError("package: " + ", ".join(PACKAGES))
47	75
48	76
49	77	def mid(table):
		@@ -108,6 +136,41 @@
108	136	bodies = {"body_body": ("pa6", "#1c1c1e"), "tab_body": ("copper", "#c8ccd0")}
109	137	if detail == "full":
110	138	leads(xs, t["b"], t["c"], t["L"], t["L1"], [t["b2"]] * len(xs), z0)
	139	+elif package in ("TO-220F", "TO-220F-2"):
	140	+ # Fully moulded (no exposed metal): the full thickness A up to F below the top, then the thinner top part B thick, its back face flush.
	141	+ t = mid(TO220F if package == "TO-220F" else TO220F2)
	142	+ xs = [0.0, t["L"], 2 * t["L"]] if package == "TO-220F" else [0.0, 2 * t["L"]]
	143	+ cx = xs[-1] / 2
	144	+ back = t["C"]
	145	+ front = back - t["A"]
	146	+ z0 = t["H"] # the shoulders rest on the board
	147	+ top = z0 + t["G"]
	148	+ E = t["E"]
	149	+ box("body", cx - E / 2, cx + E / 2, front, back, z0, top - t["F"], "body_body", "new", "Body")
	150	+ box("body_top", cx - E / 2, cx + E / 2, back - t["B"], back, top - t["F"], top, "body_body", "join", "Body")
	151	+ through_y("hole", (cx, top - t["M"], t["N"] / 2), back + 0.1, back - t["B"] - 0.1, "body_body", "cut", "Mounting hole")
	152	+ bodies = {"body_body": ("pa6", "#1c1c1e")}
	153	+ if detail == "full":
	154	+ leads(xs, t["K"], t["D"], t["J"], t["H"], [t["P"]] * len(xs), z0)
	155	+elif package == "TO-126":
	156	+ # Moulded body with the mounting plate on its back and the hole through both; leads at pitch K, their centre plane B in front of the back.
	157	+ t = mid(TO126)
	158	+ xs = [0.0, t["K"], 2 * t["K"]]
	159	+ cx = t["K"]
	160	+ back = t["B"]
	161	+ front = back - t["A"]
	162	+ z0 = t["N"]
	163	+ top = z0 + t["G"]
	164	+ W = t["D"]
	165	+ box("body", cx - W / 2, cx + W / 2, front, back, z0, top, "body_body", "new", "Body")
	166	+ m = 0.08 * W
	167	+ box("plate_recess", cx - W / 2 + m, cx + W / 2 - m, back - PLATE_T, back, z0 + 0.1 * t["G"], top - m, "body_body", "cut", "Plate recess")
	168	+ box("plate", cx - W / 2 + m, cx + W / 2 - m, back - PLATE_T, back, z0 + 0.1 * t["G"], top - m, "plate_body", "new", "Mounting plate")
	169	+ through_y("hole", (cx, top - t["E"], t["F"] / 2), back + 0.1, front - 0.1, "body_body", "cut", "Mounting hole")
	170	+ through_y("plate_hole", (cx, top - t["E"], t["F"] / 2), back + 0.1, front - 0.1, "plate_body", "cut", "Mounting hole")
	171	+ bodies = {"body_body": ("pa6", "#1c1c1e"), "plate_body": ("copper", "#c8ccd0")}
	172	+ if detail == "full":
	173	+ leads(xs, t["J"], t["C"], t["H"], t["N"], [t["M"]] * 3, z0)
111	174	elif package == "TO-247AC":
112	175	t = TO247AC
113	176	xs = [0.0, t["e"], 2 * t["e"]]
		@@ -131,10 +194,10 @@
131	194	bodies = {"body_body": ("pa6", "#1c1c1e"), "pad_body": ("copper", "#c8ccd0")}
132	195	if detail == "full":
133	196	leads(xs, t["b"], t["c"], t["L"], t["L1"], [t["b2"], t["b4"], t["b2"]], z0)
134		-elif package in ("TO-18", "TO-18-2"):
	197	+elif package in CANS:
135	198	# Metal can: the flange (header) on the board, the can on it; leads on a circle round the axis (lead 1 at the origin, lead 3 or lead 2
136	199	# at +X by G, the 3-lead part's lead 2 H off that line along -Y); the tab at 45 deg toward -X +Y, beside lead 1.
137		- t = mid(TO18)
	200	+ t = mid(CANS[package])
138	201	cx = t["G"] / 2
139	202	xs = [(0.0, 0.0), (t["G"], 0.0)] if package == "TO-18-2" else [(0.0, 0.0), (cx, -t["H"]), (t["G"], 0.0)]
140	203	model.plane("flange_plane", on="XY", offset=0.0, name="Flange")
		@@ -179,7 +242,7 @@
179	242	sk.rect(f"lead_{i}", (x - t["b"] / 2, -t["c"] / 2), (x + t["b"] / 2, t["c"] / 2))
180	243	model.extrude("leads", "leads_sketch", distance=t["L"], op="new", body="leads_body", name="Leads")
181	244	if detail == "full":
182		- bodies["leads_body"] = ("nickel", "#d8c58a") if package.startswith("TO-18") else ("copper", "#c9ccd1")
	245	+ bodies["leads_body"] = ("nickel", "#d8c58a") if package in CANS else ("copper", "#c9ccd1")
183	246	# Materials, for looks and a rough mass: the moulding is epoxy (nylon, PA6, the nearest in the list), the tab and pad copper (nickel or tin
184	247	# plated), the leads tinned copper. TO-18 (Central's material sheets): the header and leads Kovar (density 8.36; nickel, 8.9, is the nearest
185	248	# in the list), the can a nickel-plated iron alloy (steel).

pypart.toml +41 −6

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		@@ -1,17 +1,17 @@
1	1	name = "steve/to-package"
2		-version = "1.0.0"
	2	+version = "1.1.0"
3	3	runtime = "steve"
4	4	license = "MIT"
5		-summary = "Through-hole transistor packages standing on the board: TO-220AB, TO-220AC, TO-247AC TO-92 (straight leads) and the TO-18 metal can, from Vishay's and TI's package drawings."
6		-description = """A through-hole transistor, regulator or diode package standing on the board, from the maker's package drawing: TO-220AB (3 leads) and TO-220AC (2 leads) with the metal tab and its hole, TO-247AC with its exposed copper and side slots, TO-92 with straight leads, and the TO-18 metal can with 2 or 3 leads. Lead 1 at the origin, the leads along +X, the moulded front toward -Y. See the README."""
7		-tags = ["to-220", "to-247", "to-92", "to-18", "transistor", "package", "through-hole", "electronics"]
	5	+summary = "Through-hole TO packages standing on the board: TO-220AB, TO-220AC, TO-220F, TO-247AC, TO-126, TO-92 and the TO-18, TO-39 and TO-46 metal cans, from the makers' drawings."
	6	+description = """A through-hole transistor, regulator or diode package standing on the board, from the maker's package drawing: TO-220AB (3 leads) and TO-220AC (2 leads) with the metal tab and its hole, TO-247AC with its exposed copper and side slots, TO-92 with straight leads, TO-126 with its mounting plate, the fully moulded TO-220F with 3 or 2 leads, and the TO-18 (2 or 3 leads), TO-39 and TO-46 metal cans. Lead 1 at the origin, the leads along +X, the moulded front toward -Y. See the README."""
	7	+tags = ["to-220", "to-247", "to-92", "to-18", "to-39", "to-126", "transistor", "package", "through-hole", "electronics"]
8	8
9	9	[parameters.package]
10	10	type = "choice"
11	11	default = "TO-220AB"
12		-choices = ["TO-220AB", "TO-220AC", "TO-247AC", "TO-92", "TO-18", "TO-18-2"]
	12	+choices = ["TO-220AB", "TO-220AC", "TO-220F", "TO-220F-2", "TO-247AC", "TO-126", "TO-92", "TO-18", "TO-18-2", "TO-39", "TO-46"]
13	13	label = "Package"
14		-description = "TO-220AB: 3 leads at 2.54. TO-220AC: 2 leads 5.08 apart. TO-247AC: 3 leads at 5.46. TO-92: 3 straight leads at 1.27. TO-18: metal can, 3 leads on a 2.54 circle; TO-18-2: 2 leads 2.54 apart."
	14	+description = "TO-220AB: 3 leads at 2.54. TO-220AC: 2 leads 5.08 apart. TO-247AC: 3 leads at 5.46. TO-92: 3 straight leads at 1.27. TO-18: metal can, 3 leads on a 2.54 circle; TO-18-2: 2 leads 2.54 apart. TO-39: metal can, Ø 9, 3 leads on a 5.08 circle. TO-46: low metal can, 3 leads on a 2.54 circle. TO-126: 3 leads at 2.25, mounting plate on the back. TO-220F: fully moulded, 3 leads at 2.54; TO-220F-2: 2 leads 5.1 apart."
15	15
16	16	[parameters.detail]
17	17	type = "choice"
		@@ -35,11 +35,32 @@
35	35	standard = "Vishay TO-220AC"
36	36
37	37	[[presets]]
	38	+id = "TO-220F"
	39	+title = "TO-220F (fully moulded), 3 leads, 2.54 pitch, vertical (Central Semiconductor outline)"
	40	+params = { package = "TO-220F" }
	41	+aliases = ["TO-220F-3", "TO-220F", "TO-220FP", "TO-220 FullPAK", "TO-220 full pack 3 lead"]
	42	+standard = "Central TO-220FP"
	43	+
	44	+[[presets]]
	45	+id = "TO-220F-2"
	46	+title = "TO-220F (fully moulded), 2 leads, 5.1 apart, vertical (Central Semiconductor outline)"
	47	+params = { package = "TO-220F-2" }
	48	+aliases = ["TO-220F-2", "TO-220FP-2", "TO-220 full pack 2 lead"]
	49	+standard = "Central TO-220FP-2"
	50	+
	51	+[[presets]]
38	52	id = "TO-247AC"
39	53	title = "TO-247AC, 3 leads, 5.46 pitch, vertical (Vishay outline)"
40	54	params = { package = "TO-247AC" }
41	55	aliases = ["TO-247-3", "TO-247", "TO-247AC", "JEDEC TO-247AC", "TO247 3 lead"]
42	56	standard = "Vishay TO-247AC"
	57	+
	58	+[[presets]]
	59	+id = "TO-126"
	60	+title = "TO-126, 3 leads, 2.25 pitch, vertical (Central Semiconductor outline)"
	61	+params = { package = "TO-126" }
	62	+aliases = ["TO-126-3", "TO-126", "TO126 3 lead", "SOT-32"]
	63	+standard = "Central TO-126"
43	64
44	65	[[presets]]
45	66	id = "TO-92"
		@@ -63,6 +84,20 @@
63	84	standard = "Central TO-18 2-lead"
64	85
65	86	[[presets]]
	87	+id = "TO-39"
	88	+title = "TO-39 metal can, 3 leads (Central Semiconductor outline)"
	89	+params = { package = "TO-39" }
	90	+aliases = ["TO-39-3", "TO-39", "TO-205AD", "JEDEC TO-205AD", "TO39 metal can 3 lead"]
	91	+standard = "Central TO-39"
	92	+
	93	+[[presets]]
	94	+id = "TO-46"
	95	+title = "TO-46 metal can, 3 leads (Central Semiconductor outline)"
	96	+params = { package = "TO-46" }
	97	+aliases = ["TO-46-3", "TO-46", "TO-206AB", "JEDEC TO-206AB", "TO46 metal can 3 lead"]
	98	+standard = "Central TO-46"
	99	+
	100	+[[presets]]
66	101	id = "TO-220AB-simple"
67	102	title = "TO-220AB, 3 leads, 2.54 pitch, vertical (Vishay outline), simple"
68	103	params = { package = "TO-220AB", detail = "simple" }

README.md +36 −10

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		@@ -6,16 +6,21 @@
6	6	|---|---|---|---|
7	7	| `TO-220AB` | 3, 2.54 pitch | 10.16 x 4.45 x 15.09 (tab included) | Vishay Siliconix 92506 |
8	8	| `TO-220AC` | 2, 5.08 apart | 10.31 x 4.45 x 15.05 (tab included) | Vishay Semiconductors 95221 |
	9	+| `TO-220F` | 3, 2.54 pitch | 10.17 x 4.66 x 15.53, fully moulded | Central Semiconductor TO-220FP |
	10	+| `TO-220F-2` | 2, 5.10 apart | 10.31 x 4.80 x 15.10, fully moulded | Central Semiconductor TO-220FP-2 |
9	11	| `TO-247AC` | 3, 5.46 pitch | 15.70 x 5.02 x 20.55 | Vishay Siliconix 91360 |
	12	+| `TO-126` | 3, 2.25 pitch | 7.95 x 2.60 x 11.25 | Central Semiconductor TO-126 |
10	13	| `TO-92` | 3 straight, 1.27 pitch | 4.83 x 3.68 x 4.83 | TI LP0003A |
11	14	| `TO-18` | 3, on a Ø 2.54 circle | flange Ø 5.58, can Ø 4.74, 4.83 high | Central Semiconductor TO-18 |
12	15	| `TO-18-2` | 2, 2.54 apart | as `TO-18` | Central Semiconductor TO-18 2-Lead |
	16	+| `TO-39` | 3, on a Ø 5.08 circle | flange Ø 8.96, can Ø 8.26, 6.35 high | Central Semiconductor TO-39 |
	17	+| `TO-46` | 3, on a Ø 2.54 circle | flange Ø 5.58, can Ø 4.74, 1.91 high | Central Semiconductor TO-46 |
13	18
14		-Lead 1 is at the origin and the leads run along +X. The moulded front faces -Y (on the TO-92, the flat face), and the metal tab or exposed copper is at the back (+Y).
	19	+Lead 1 is at the origin and the leads run along +X. The moulded front faces -Y (on the TO-92, the flat face), and the metal tab, exposed copper or mounting plate is at the back (+Y).
15	20
16		-- **TO-220 and TO-247.** The leads' shoulders rest on the board (the XY plane), and the leads continue their full length L down through it.
	21	+- **TO-220, TO-220F, TO-247 and TO-126.** The leads' shoulders rest on the board (the XY plane), and the leads continue their full length down through it.
17	22	- **TO-92.** The body sits 1.5 above the board (TI's reference seating plane).
18		-- **TO-18.** The flange sits on the board. Leads 1 and 3 are 2.54 apart along +X, and lead 2 is 1.27 off that line along -Y. The tab is at 45°, beside lead 1.
	23	+- **TO-18, TO-39 and TO-46.** The flange sits on the board. Leads 1 and 3 are G apart along +X (2.54, or 5.08 on the TO-39), and lead 2 is H off that line along -Y (1.27, or 2.54). The tab is at 45°, beside lead 1.
19	24
20	25	`detail = "simple"` leaves out the leads.
21	26
		@@ -39,22 +44,32 @@
39	44	- **Central Semiconductor, "Package Details - TO-18"** (REV R1, R0 21-June 2004) and **"TO-18 2-Lead Case"** (REV R0, 13-March 2013), from centralsemi.com.
40	45	- Table (mm): A flange Ø 5.31–5.84, B can Ø 4.52–4.95, C flange 0.76 max (used as is), D height 4.32–5.33, E lead length 12.70 min (used as is), F lead Ø 0.41–0.48, G 2.54 (the lead circle, or the 2-lead part's spacing), H 1.27 (3 leads), and tab width 0.91–1.17 and tab length 0.71–1.22 at 45° (I and J; on the 2-lead sheet, H and J).
41	46	- Both sheets' material sheets give a Kovar header and leads and a nickel-plated iron-alloy can.
	47	+- **Central Semiconductor, "Package Details - TO-39"** (REV R1, R0 21-June 2004) and **"Package Details - TO-46"** (REV R2, R0 17-July 2008), from centralsemi.com. The tables use the TO-18 sheet's letters:
	48	+ - TO-39 (mm): A flange Ø 8.51–9.40, B can Ø 8.00–8.51, C flange 1.02 max (used as is), D height 6.10–6.60, E lead length 12.70 min (used as is), F lead Ø 0.41–0.53, G 5.08 (the lead circle), H 2.54, I tab width 0.71–0.86, J tab length 0.74–1.14.
	49	+ - TO-46 (mm): A 5.31–5.84, B 4.52–4.95, C 1.02 max, D 1.65–2.16, E 12.70 min, F 0.41–0.53, G 2.54, H 1.27, and the tab width 0.91–1.17 and length 0.71–1.22 (its J and K).
	50	+- **Central Semiconductor, "Package Details - TO-126"** (REV R3, R0 21-June 2004), from centralsemi.com. Table (mm): A thickness 2.40–2.80, B the leads' centre plane 1.27 from the back, C lead thickness 0.38–0.75, D width 7.40–8.50, E hole centre 3.75 below the top, F hole Ø 3.00–3.40, G body height 10.50–12.00, H lead length 15.70 below the body, J lead width 0.62–0.90, K pitch 2.25 (L 4.50 from lead 1 to lead 3), M shoulder width 1.14–1.40, N shoulder length 2.10. "Mounting Plate Common to Pin 2", on the back.
	51	+- **Central Semiconductor, "Package Details - TO-220FP Case"** (REV R5, R2 06-June 2023) and **"TO-220FP-2 Case"** (REV R2, R0 28-January 2015), from centralsemi.com.
	52	+ - TO-220FP (mm): A thickness 4.20–5.12, B the top part's thickness 2.30–3.30, C the leads' centre plane 2.50–3.10 from the back, D lead thickness 0.80 max, E width 9.70–10.63, F the top part's height 6.06–7.00, G body height 14.80–16.25, H shoulder length 4.50 max, J lead length 12.78–13.80, K lead width 0.50–0.90, L pitch 2.54, M hole centre 2.55–3.55 below the top, N hole Ø 2.95–3.40, P shoulder width 1.00–1.47.
	53	+ - TO-220FP-2 (mm): A 4.80 max, B 3.12 max, C 2.50–2.90, D 0.81 max, E 10.31 max, F 6.30–6.90, G 14.80–15.40, H 4.10 max, J 13.00–13.80, K 0.90 max, L 2.55 (each lead from the centre line, so 5.10 apart), M 2.55–2.85, N 3.00–3.40, P 1.40 max. Where the sheets give only a maximum, the part uses it.
42	54
43	55	How the letters are read:
44	56
45	57	- **TO-220 and TO-247.** A2 (TO-247: A1) runs from the leads' back face to the back of the package. The leads' shoulders (b2, b4) are L1 long. On the TO-220, the metal tab is A1 thick: E wide above the moulding (H1 = D - D1), and E1 wide down the back to D2 below the top. On the TO-247, the exposed copper (D1 x E1, from D2 below the top) is taken as A2 thick, the dimension drawn at the back face. The TO-247's side slots are Ø E2, at Q below the top, the same height as the hole.
46	58	- **TO-92.** The body is a round of Ø W, cut flat at the depth T, with the leads K in front of the round back.
47		-- **TO-18.** The tab length J is read as reaching beyond the flange's edge.
	59	+- **TO-18, TO-39 and TO-46.** The tab length J is read as reaching beyond the flange's edge.
	60	+- **TO-220F.** The side view draws the body A thick up to F below the top, and above that B thick with the back face flush, so the hole is in the thinner part. H is the shoulder's length below the body, J the lead's from the body.
	61	+- **TO-126.** H is the lead's length from the body, shoulder included, and B runs from the back (the side the sheet marks "BACKSIDE") to the leads' centre plane.
48	62
49	63	**Proportions, for looks only.** The drawings show these but don't dimension them:
50	64
51	65	- The TO-220 tab's side notches, E2 deep, are 1.4 high, from 1.4 to 2.8 below the top, as drawn.
52		-- Not modelled: the TO-220AC's cut-off middle lead, the TO-220's ejector dimple, the TO-247's copper ring ØP1, and the bodies' 5° draft and small radii.
	66	+- The TO-126's mounting plate on the back, drawn dashed in the front view, is 0.3 thick, set in 0.08 x the width from the sides and the top, and ends 0.1 x the height above the bottom.
	67	+- Not modelled: the TO-220AC's and TO-220FP-2's cut-off middle lead, the TO-220's ejector dimple, the TO-247's copper ring ØP1, and the bodies' 5° draft and small radii.
53	68	- Every lead's shoulder narrows to the lead in one step.
54	69	- Materials are for looks and a rough mass:
55	70	- The mouldings are epoxy. Nylon (PA6) is the nearest material in the list.
56		- - The TO-220 tab and the TO-247 pad are copper, and the leads are tinned copper.
57		- - The TO-18 header and leads are Kovar (8.36), so nickel (8.9), the nearest in the list. Its can is steel.
	71	+ - The TO-220 tab, the TO-247 pad and the TO-126 plate are copper, and the leads are tinned copper.
	72	+ - The TO-18, TO-39 and TO-46 headers and leads are Kovar (8.36), so nickel (8.9), the nearest in the list. Their cans are steel.
58	73
59	74	## Catalogue models
60	75
		@@ -66,13 +81,24 @@
66	81	- **TO-92 and TO-92_Inline.** 4.83 wide, 3.75 deep. Leads at 1.27, with the flat face 1.33 in front of the leads and the round back 2.42 behind them.
67	82	- **TO-18-3.** Flange Ø 5.84, can Ø 4.95 and leads Ø 0.48 (the drawing's maximums). Lead 2 is 1.27 off the line of leads 1 and 3, and the tab is at 45° beside lead 1.
68	83
69		-The reference models stand their bodies at different heights above the board: the TO-92 at 2.5 and the TO-18 at about 5. The drawings don't give these, so this part uses the drawings' own seating.
	84	+Added in 1.1.0, measured the same way:
70	85
71		-So these map: TO-220-3_Vertical (TO-220AB), TO-220-2_Vertical (TO-220AC), TO-247-3_Vertical (TO-247AC), TO-92 and TO-92_Inline (TO-92), TO-18-3 (TO-18) and TO-18-2 (TO-18-2).
	86	+- **TO-39-3.** Flange Ø 9.40 and can Ø 8.50 (the drawing's maximums), 6.5 high, leads Ø 0.48 on a Ø 5.08 circle with lead 2 2.54 off the line. The model has no tab; the drawing has one.
	87	+- **TO-46-3.** Flange Ø 5.84 with the 45° tab, can Ø 4.80 tapering to 4.73, 2.2 high (D max 2.16, so 0.04 over), leads Ø 0.48 on a Ø 2.54 circle with lead 2 1.27 off the line.
	88	+- **TO-126-3_Vertical.** 8.0 wide and 11.0 high, as drawn, but 3.25 thick where Central's drawing allows 2.40–2.80 (0.45 over). Leads 0.75 x 0.53 at 2.28 (Central 2.25, so 0.03 apart), their plane 1.25 from the back. Only the middle lead has a shoulder (1.6 wide), where Central draws one on every lead, 1.14–1.40 wide.
	89	+- **TO-220F-3_Vertical.** 10.16 wide, 4.70 thick, with the top part 2.54 thick, and 15.6 high. Leads 0.80 x 0.53 with 1.36 shoulders at 2.54. The leads' plane is 3.29 from the back, where Central's drawing gives 2.50–3.10 (0.19 over).
	90	+- **TO-220F-2_Vertical.** The same body, with leads at 0 and 5.08 (Central 5.10).
	91	+
	92	+The names name the JEDEC package, so they map to the maker's drawing of it, with the pitch and lead order as named, and the differences are listed here.
	93	+
	94	+The reference models stand their bodies at different heights above the board: the TO-92 at 2.5, and the TO-18, TO-39 and TO-46 at about 5. The drawings don't give these, so this part uses the drawings' own seating.
	95	+
	96	+So these map: TO-220-3_Vertical (TO-220AB), TO-220-2_Vertical (TO-220AC), TO-247-3_Vertical (TO-247AC), TO-92 and TO-92_Inline (TO-92), TO-18-3 (TO-18), TO-18-2 (TO-18-2), TO-39-3 (TO-39), TO-46-3 (TO-46), TO-126-3_Vertical (TO-126), TO-220F-3_Vertical (TO-220F) and TO-220F-2_Vertical (TO-220F-2).
72	97
73	98	These stay "no table read yet" (`COVERAGE.md`):
74	99
75	100	- the TO-92 models with leads formed to 2.54 (`_Wide`). TI's formed leads are 2.4 to 2.9 apart, with a land pattern of 2.6.
76	101	- the horizontal (bent-lead) models. The drawings give straight leads only.
77		-- the other packages in the family: TO-126, TO-218, TO-220F, TO-220-4/5/11, TO-251, TO-262, TO-264, TO-3, TO-3P, TO-5, TO-8, TO-11, TO-39, TO-46 and TO-52, the TO-92 variants (L, S, Mini, Flat, 2-lead), and the windowed and lensed cans.
	102	+- the 2-lead TO-39, TO-46 and TO-126 models. Central's TO-39, TO-46 and TO-126 sheets draw 3 leads only.
	103	+- the other packages in the family: TO-218, TO-220-4/5/11, TO-247-2/4/5, TO-251, TO-262, TO-264, TO-3, TO-3P, TO-5, TO-8, TO-11 and TO-52, the TO-92 variants (L, S, Mini, Flat, 2-lead), and the windowed and lensed cans.
78	104