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BAV21WQ-7-F

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Diodes Incorporated Switching Diodes, SOD-123. 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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BAV21WQ-7-F

Diodes Incorporated · Switching Diodes · SOD-123

BAV21WQ-7-F from Diodes Incorporated, in a SOD-123. 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 Diodes Incorporated
Package SOD-123
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
Non-Repetitive Peak Reverse Voltage (BAV21W column) VRM 250 V 2
Peak Repetitive Reverse Voltage (BAV21W column) VRRM 200 V 2
Working Peak Reverse Voltage (BAV21W column) VRWM 200 V 2
DC Blocking Voltage (BAV21W column) VR 200 V 2
RMS Reverse Voltage (BAV21W column) VR(RMS) 141 V 2
Forward Continuous Current IFM 400 mA 2
Non-Repetitive Peak Forward Surge Current IFSM 2.5 A @t = 1.0ms 2
Non-Repetitive Peak Forward Surge Current IFSM 0.5 A @t = 1.0s 2
Repetitive Peak Forward Surge Current IFRM 625 mA 2
Power Dissipation PD 250 mW 2
Thermal Resistance Junction to Ambient Air RθJA 500 °C/W 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 2
Reverse Breakdown Voltage (BAV21W) V(BR)R 250 V IR = 100µA 2
Forward Voltage VFM 1 V IF = 100mA 2
Forward Voltage VFM 1.25 V IF = 200mA 2
Peak Reverse Current @ Rated DC Blocking Voltage IRM 100 nA TJ = +25°C 2
Peak Reverse Current @ Rated DC Blocking Voltage IRM 15 μA TJ = +100°C 2
Total Capacitance CT 5 pF VR = 0, f = 1.0MHz 2
Reverse Recovery Time tRR 50 ns IF = IR = 30mA, IRR = 0.1 x IR, RL = 100W 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin • Terminals: Solderable per MIL-STD-202, Method 208 Lead Free Plating (Matte Tin Finish Annealed over Alloy 42 Leadframe) 1

CAD (KiCad official)

  • Symbol: BAV21WQ-7-F
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bav21wq-7-f-etched.step / bav21wq-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bav21wq-7-f.step / bav21wq-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 039327b36de04287, 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