component
BAS21J
Public Made by Adomby adom
Nexperia Global Sourcing Parts, SOD-323F. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 10d ago |
| viewers | 10d ago |
| bas21j-etched.glb | 10d ago |
| bas21j-etched.step | 10d ago |
| bas21j-hero.glb | 10d ago |
| bas21j-hero.overlay.json | 10d ago |
| bas21j.glb | 10d ago |
| bas21j.kicad_mod | 10d ago |
| bas21j.kicad_sym | 10d ago |
| bas21j.lbr | 10d ago |
| bas21j.step | 10d ago |
| package.json | 10d ago |
| page.json | 10d ago |
| README.md | 10d ago |
BAS21J
Nexperia · Global Sourcing Parts · SOD-323F
BAS21J from Nexperia, in a SOD-323F. 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 | cathode | passive | Cathode terminal, indicated by the marking bar; the cathode tab soldering point is the reference for the junction-to-solder-point thermal resistance Rth(j-sp) of 55 K/W. |
| 2 | anode | passive | Anode terminal of the single high-speed switching diode; the datasheet gives no pin-specific limit, and the limiting values (VR 300 V, IF 250 mA) apply to the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOD-323F |
| Category | Global Sourcing Parts |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| repetitive peak reverse voltage | VRRM | 300 | V | 3 | |||
| reverse voltage | VR | 300 | V | 3 | |||
| forward current | IF | 250 | mA | [1] Pulse test: tp ≤ 300 µs; δ≤ 0.02 | 3 | ||
| repetitive peak forward current | IFRM | 1 | A | tp ≤ 0.5 ms; δ≤ 0.25 | 3 | ||
| non-repetitive peak forward current | IFSM | 3 | A | square wave; tp = 100 µs | 3 | ||
| non-repetitive peak forward current | IFSM | 2.3 | A | square wave; tp = 1 ms | 3 | ||
| non-repetitive peak forward current | IFSM | 1.7 | A | square wave; tp = 10 ms | 3 | ||
| total power dissipation | Ptot | 550 | mW | Tamb ≤ 25 °C | 3 | ||
| junction temperature | Tj | 150 | °C | 3 | |||
| ambient temperature | Tamb | -65 | 150 | °C | 3 | ||
| storage temperature | Tstg | -65 | 150 | °C | 3 | ||
| thermal resistance from junction to ambient | Rth(j-a) | 230 | K/W | in free air | 3 | ||
| thermal resistance from junction to solder point | Rth(j-sp) | 55 | K/W | 3 | |||
| forward voltage | VF | 1.1 | V | IF = 100 mA | 4 | ||
| reverse current | IR | 150 | nA | VR = 250 V | 4 | ||
| reverse current | IR | 50 | µA | VR = 250 V; Tj = 150 °C | 4 | ||
| diode capacitance | Cd | 2 | pF | VR = 0 V; f = 1 MHz | 4 | ||
| reverse recovery time | trr | 50 | ns | [2] When switched from IF = 30 mA to IR = 30 mA; RL = 100 Ω; measured at IR = 3 mA | 4 |
CAD (KiCad official)
- Symbol:
BAS21J - Footprint:
Diode_SMD:D_SOD-323F - 3D model: SOD-323F (KiCad packages3D, STEP)
- 3D model files:
bas21j-etched.step/bas21j-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bas21j.step/bas21j.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (10 pp, sha256
7aad49d2c3d1d9ef, retrieved 2026-10-26, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).