component
TTA1943
Public Made by Adomby adom
TOSHIBA Bipolar (BJT), TO-3P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"type": "component",
"slug": "tta1943",
"title": "TTA1943",
"brief": "TOSHIBA Bipolar (BJT), TO-3P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"category": "Transistors/Thyristors",
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"checked_at": "2026-11-06T11:30:21Z",
"source": "Component Ocean /api/assign-pns",
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"status": "quota"
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"pins": [
{
"number": "1",
"name": "BASE",
"type": "input",
"description": "Base terminal; the datasheet rates base current IB at -1.5 A (absolute maximum)."
},
{
"number": "2",
"name": "COLLECTOR",
"type": "passive",
"description": "Collector terminal, also the heat sink tab; the datasheet rates collector current IC at -15 A and collector power dissipation PC at 150 W (Tc=25°C)."
},
{
"number": "3",
"name": "EMITTER",
"type": "passive",
"description": "Emitter terminal; the datasheet rates emitter-base voltage VEBO at -5 V (absolute maximum)."
}
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"guard_notes": [
"extractor flagged: The datasheet gives the package only as 'TOSHIBA 2-21F1A' with JEDEC and JEITA marked '—'. It does n; The datasheet does not list ordering codes or package variants for TTA1943, so it cannot confirm tha; Pin types are assigned by KiCad convention for a bipolar transistor (base as input, collector and em"
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"checked": "2026-11-06",
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"metadata": {
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"Package": "TO-3P",
"Category": "Transistors/Thyristors",
"Pins": "3"
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"appearance": {
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"quote": "Base current IB -1.5 A Collector power dissipation (Tc=25°C) PC 150 W",
"page": 1,
"doc": "ds.pdf",
"material": "PC"
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"rows": [
{
"name": "Collector cut-off current",
"symbol": "ICBO",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": -5,
"conditions": "VCB = -230 V, IE = 0",
"source_page": 2,
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},
{
"name": "Emitter cut-off current",
"symbol": "IEBO",
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{
"name": "Collector-emitter breakdown voltage",
"symbol": "V(BR)CEO",
"kind": "electrical",
"unit": "V",
"min": -230,
"typ": null,
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"conditions": "IC = -50 mA, IB = 0",
"source_page": 2,
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},
{
"name": "DC current gain",
"symbol": "hFE (1)",
"kind": "electrical",
"unit": "",
"min": 80,
"typ": null,
"max": 160,
"conditions": "VCE = -5 V, IC = -1 A",
"source_page": 2,
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{
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"min": 35,
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"conditions": "VCE = -5 V, IC = -7 A",
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{
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"conditions": "IC = -8 A, IB = -0.8 A",
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},
{
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"conditions": "VCE = -5 V, IC = -7 A",
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{
"name": "Collector-base voltage",
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{
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"unit": "A",
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"conditions": "Ta = 25°C",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Base current",
"symbol": "IB",
"kind": "absolute_maximum",
"unit": "A",
"min": -1.5,
"typ": null,
"max": null,
"conditions": "Ta = 25°C",
"source_page": 1,
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},
{
"name": "Collector power dissipation",
"symbol": "PC",
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"conditions": "Tc = 25°C",
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{
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{
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