component

BAV21W-T3

Public Made by Adom

by adom

SY(顺烨) Switching Diodes, SOD-123FL. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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bav21w-t3-etched.step bav21w-t3: factory component page (tier=lcsc) · Ray 9d ago
bav21w-t3-hero.glb bav21w-t3: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
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BAV21W-T3

SY(顺烨) · Switching Diodes · SOD-123FL

BAV21W-T3 from SY(顺烨), in a SOD-123FL. 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer SY(顺烨)
Package SOD-123FL
Category Diodes
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 250 V BAV21W column 1
Maximum RMS voltage VRMS 200 V BAV21W column 1
Continuous Forward Current IF 250 mA 1
Repetitive Peak Forward Current IFRM 625 mA 1
Non-repetitive Peak Forward Surge Current IFSM 1 A at 1s 1
Non-repetitive Peak Forward Surge Current IFSM 3 A at 1ms 1
Non-repetitive Peak Forward Surge Current IFSM 9 A at 1us 1
Total Power Dissipation Ptot 500 mW 1
Operating and Storage Temperature Range Tj, Tstg -55 150 °C 1
Maximum Forward Voltage VF 1 V at 100 mA 1
Maximum Forward Voltage VF 1.25 V at 200 mA 1
Maximum DC Reverse Current IR 0.1 μA Ta = 25 °C at rated DC blocking voltage 1
Maximum DC Reverse Current IR 100 μA Ta = 150 °C at rated DC blocking voltage 1
Maximum Reverse Recovery Time trr 50 ns IF = 0.5 A, IR = 1 A, Irr = 0.25 A 1

CAD (KiCad official)

  • Symbol: BAV21W-T3
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: bav21w-t3-etched.step / bav21w-t3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bav21w-t3.step / bav21w-t3.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: SY(顺烨) datasheet (2 pp, sha256 341be8f73f0bc13f, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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).

Datasheet PDF