component
STP21N90K5
Public Made by Adomby adom
STMicroelectronics MOSFETs, TO-220. Datasheet-verified pinout, 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
markdownSTP21N90K5
STMicroelectronics · MOSFETs · TO-220
STP21N90K5 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 | G | input | Gate control terminal; maximum gate-source voltage ±30 V, gate threshold voltage 3-5 V. |
| 2 | D | bidirectional | Drain terminal; maximum drain-source voltage 900 V, continuous current 18.5 A at 25 °C, on-resistance 250-299 mΩ at gate voltage 10 V and drain current 9 A. |
| 3 | S | power_in | Source terminal; drain current return path and gate-source voltage reference point. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-220 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
STP21N90K5 - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
stp21n90k5-etched.step/stp21n90k5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stp21n90k5.step/stp21n90k5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (22 pp, sha256
5521b3738248a5d9, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5(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).