component
BAS21
Public Made by Adomby adom
Nexperia Diodes - General Purpose, SOT-23. Pinout extracted from 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
markdownBAS21
Nexperia · Diodes - General Purpose · SOT-23
BAS21 from Nexperia, in a SOT-23. 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 | A | passive | Anode of the switching diode. Forward current flows from anode (pin 1) to cathode (pin 3); VF ≤ 1 V at IF = 100 mA. |
| 2 | NC | unconnected | Not connected. No internal bond; leave floating or tie to any convenient net. |
| 3 | K | passive | Cathode of the switching diode. Reverse voltage rating VR = 200 V (VRRM = 250 V); reverse current ≤ 100 nA at VR = 200 V, Tj = 25 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
BAS21 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bas21-etched.step/bas21-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bas21.step/bas21.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (10 pp, sha256
4632cdc90d8753d1, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).