component

BSD5C121V

Public Made by Adom

by adom

BORN ESD Protection Devices, SOD-523. 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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BSD5C121V

BORN · ESD Protection Devices · SOD-523

BSD5C121V from BORN, in a SOD-523. 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 1 passive Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation.
2 2 passive Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation.

Key specifications

Parameter Value
Manufacturer BORN
Package SOD-523
Category Circuit Protection
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
Peak Pulse Power PPP 200 Watts tp =8/20μs 2
Peak Pulse Current Ipp 8 A tp =8/20μs (note1) 2
ESD per IEC 61000-4-2 (Air) VESD 30 kV per IEC 61000-4-2 (Air) 2
ESD per IEC 61000-4-2 (Contact) VESD 30 kV per IEC 61000-4-2 (Contact) 2
Lead Soldering Temperature TL 260 ℃ 10 seconds 2
Junction Temperature TJ -55 150 ℃ 2
Storage Temperature Tstg -55 150 ℃ 2
Reverse Stand-Off Voltage VRWM 12 V 2
Reverse Breakdown Voltage VBR 13.3 V IT=1mA 2
Reverse Leakage Current IR 0.5 uA VRWM=12V,T=25℃ 2
Clamping Voltage VC 24 V IPP=8A,tp=8/20μs 2
Junction Capacitance Cj 10 pF VR = 0V, f = 1MHz 2

CAD (KiCad official)

  • Symbol: BSD5C121V
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: bsd5c121v-etched.step / bsd5c121v-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bsd5c121v.step / bsd5c121v.glb are the bare package body.

Provenance

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

  • Datasheet: BORN datasheet (4 pp, sha256 f0d2cfc4fc3049c5, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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