component
D44H11
Public Made by Adomby adom
STMicroelectronics Bipolar (BJT), TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownD44H11
STMicroelectronics · Bipolar (BJT) · TO-220
D44H11 from STMicroelectronics, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | B | input | Base terminal of the NPN power transistor, controls collector current flow. |
| 2 | C | passive | Collector terminal of the NPN power transistor, internally connected to the TAB; rated VCEO(IB=0) = 80 V and max collector current IC = 10 A for D44H11. |
| 3 | E | passive | Emitter terminal of the NPN power transistor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-220 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-emitter voltage (IB = 0), D44H11 - D45H11 | VCEO | 80 | V | IB = 0 | 2 | ||
| Emitter-base voltage (IC = 0) | VEBO | 5 | V | IC = 0 | 2 | ||
| Collector current | IC | 10 | A | 2 | |||
| Collector peak current | ICM | 20 | A | 2 | |||
| Total dissipation | PTOT | 50 | W | Tcase = 25 °C | 2 | ||
| Storage temperature | TSTG | -55 | 150 | °C | 2 | ||
| Max. operating junction temperature | TJ | 150 | °C | 2 | |||
| Thermal resistance junction-case | RthJC | 2.5 | °C/W | 2 | |||
| Thermal resistance junction-ambient | RthJA | 62.5 | °C/W | 2 | |||
| Collector-emitter sustaining voltage (IB = 0), D44H11 - D45H11 | VCEO(sus) | 80 | V | IC = 100 mA | 3 | ||
| Collector cut-off current | ICES | 10 | µA | VBE = 0; VCE = rated VCEO | 3 | ||
| Emitter cut-off current | IEBO | 100 | µA | IC = 0; VEB = 5 V | 3 | ||
| Collector-emitter saturation voltage | VCE(sat) | 1 | V | IC = 8 A; IB = 0.4 A | 3 | ||
| Base-emitter saturation voltage | VBE(sat) | 1.5 | V | IC = 8 A; IB = 0.8 A | 3 | ||
| DC current gain | hFE | 60 | IC = 2 A; VCE = 1 V | 3 | |||
| DC current gain | hFE | 40 | IC = 4 A; VCE = 1 V | 3 |
CAD (KiCad official)
- Symbol:
D44H11 - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
d44h11-etched.step/d44h11-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);d44h11.step/d44h11.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (8 pp, sha256
0945eb39b01a01f4, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-5(text+vision), consensusclaude-opus-4-8(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).