component
STB21N90K5
Public Made by Adomby adom
STMicroelectronics MOSFETs, D2PAK. 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
markdownSTB21N90K5
STMicroelectronics · MOSFETs · D2PAK
STB21N90K5 from STMicroelectronics, in a D2PAK. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | G | input | Gate control input; maximum VGS ±30 V with gate-source threshold voltage 3-5 V |
| 2 | D | passive | Drain terminal; rated for 18.5 A continuous at 25 °C (11.6 A at 100 °C), 74 A pulsed maximum, 900 V drain-source voltage maximum |
| 3 | S | passive | Source terminal; provides return path for drain current and gate-source voltage reference |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | D2PAK |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
STB21N90K5 - Footprint:
Package_TO_SOT_SMD:TO-263-2 - 3D model: D2PAK (KiCad packages3D, STEP)
- 3D model files:
stb21n90k5-etched.step/stb21n90k5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stb21n90k5.step/stb21n90k5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (22 pp, sha256
5521b3738248a5d9, retrieved 2026-09-26, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).