component

SA51A

Public Made by Adom

by adom

Brightking Elec (TAIWAN) TVS, DO-15. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
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SA51A

Brightking Elec (TAIWAN) · TVS · DO-15

SA51A from Brightking Elec (TAIWAN), in a DO-15. 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, marked by the color band on the unidirectional SA51A (VRWM 51.0 V, VBR 56.70~62.70 V at 1 mA, VC 82.4 V at 6.2 A IPP).
2 A passive Anode axial lead of the unidirectional SA51A; the datasheet gives no pin numbers, only that the color band denotes the cathode.

Key specifications

Parameter Value
Manufacturer Brightking Elec (TAIWAN)
Package DO-15
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
Breakdown Voltage VBR 56.7 62.7 V @IT=1 mA, TA=25℃ 3
Maximum Clamping Voltage VC 82.4 V @IPP=6.2 A, TA=25℃ 3
Peak Pulse Current IPP 6.2 A 10/1000μs waveform, TA=25℃ 3
Reverse Leakage IR 1 μA @VRWM=51.0 V, TA=25℃ 3
Reverse Stand-Off Voltage VRWM 51 V TA=25℃ 3
Breakdown Test Current IT 1 mA TA=25℃ 3
Peak pulse power dissipation PPPM 500 W 10/1000μs waveform 1
Steady state power dissipation PM(AV) 3 W TA=50℃ 1
Peak forward surge current IFSM 70 A 8.3ms single half sine-wave superimposed on rated load 1
Operating junction and storage temperature TJ,TSTG -55 150 ℃ 1
Thermal resistance junction to lead RθJL 20 ℃/W 1
Thermal resistance junction to ambient RθJA 75 ℃/W 1

CAD (KiCad official)

  • Symbol: SA51A
  • Footprint: Diode_THT:D_DO-15_P12.70mm_Horizontal
  • 3D model: DO-15 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Brightking Elec (TAIWAN) datasheet (6 pp, sha256 f0dc01ead7acea2f, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (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