component

SMB15J28AX

Public Made by Adom

by adom

Shenzhen JingYang ESD And Surge Protection (TVS/ESD), SMB. 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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docs Publish 0.1.0 · Ray 16d ago
viewers smb15j28ax: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
package.json Publish 0.1.0 · Ray 16d ago
page.json Set visibility: public · Ray 16d ago
README.md Publish 0.1.0 · Ray 16d ago
smb15j28ax-etched.glb Publish 0.1.0 · Ray 16d ago
smb15j28ax-etched.step smb15j28ax: factory component page (tier=lcsc) · Ray 16d ago
smb15j28ax-hero.glb smb15j28ax: hero GLB from the etched model (keeps the MPN mark) · Ray 16d ago
smb15j28ax-hero.overlay.json Publish 0.1.0 · Ray 16d ago
smb15j28ax.glb Publish 0.1.0 · Ray 16d ago
smb15j28ax.kicad_mod Publish 0.1.0 · Ray 16d ago
smb15j28ax.kicad_sym smb15j28ax: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smb15j28ax.lbr smb15j28ax: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smb15j28ax.step Publish 0.1.0 · Ray 16d ago

SMB15J28AX

Shenzhen JingYang · ESD And Surge Protection (TVS/ESD) · SMB

SMB15J28AX from Shenzhen JingYang, in a SMB. 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 Shenzhen JingYang
Package SMB
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 31.1 34.4 V @ IT = 1 mA 2
Maximum clamping voltage VC 45.4 V @ IPP 2
Maximum peak pulse current IPP 33.1 A 2
Maximum reverse leakage IR 1 uA @ VRWM 2
Maximum instantaneous forward voltage VF 3.5 V at 50 A, unidirectional only; VBR<200V 1
Peak power dissipation PPP 1500 W 10/1000 us waveform 1
Peak forward surge current IFSM 100 A 8.3 ms single half sinewave, unidirectional only 1
Power dissipation on infinite heatsink PD 5 W TL = 75 °C 1
Operating junction and storage temperature range TJ, TSTG -55 150 °C 1
Reverse stand-off voltage VRWM 28 V 2

CAD (KiCad official)

  • Symbol: SMB15J28AX
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smb15j28ax-etched.step / smb15j28ax-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smb15j28ax.step / smb15j28ax.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen JingYang datasheet (3 pp, sha256 506949e7bd435c09, retrieved 2026-10-22, 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