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SMBJ28AQ-13-F

Public Made by Adom

by adom

Diodes Incorporated TVS, SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SMBJ28AQ-13-F

Diodes Incorporated · TVS · SMB

SMBJ28AQ-13-F from Diodes Incorporated, 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 terminal, marked by the cathode band on this unidirectional device, which is connected to the protected line and has a reverse standoff voltage VRWM of 28.0V.
2 A passive Anode terminal, the end without the cathode band on this unidirectional device, which is normally connected to ground or return and has a peak pulse power rating of 600W.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
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 35.8 V @ IT = 1.0 mA, TA = +25°C, pulse 10ms to 15ms 3
Max Reverse Leakage IR 5 µA @ VRWM = 28.0V 3
Max Clamping Voltage VC 45.4 V @ IPP = 13.2A, 10×1000μs waveform 3
Reverse Standoff Voltage VRWM 28 V 3
Max Peak Pulse Current IPP 13.2 A 10×1000μs waveform 3
Test Current IT 1 mA 3
Peak Pulse Power Dissipation PPK 600 W Non-repetitive current pulse derated above TA = +25°C 2
Peak Power Derating Above +25°C PDER 4.8 W/°C 2
Peak Forward Surge Current IFSM 100 A 8.3ms single half sine wave superimposed on rated load; unidirectional only 2
Steady-State Power Dissipation PM(AV) 5 W @ TL = +75°C 2
Instantaneous Forward Voltage VF 3.5 V @ IPP = 35A; unidirectional only 2
Operating Temperature Range TJ -55 150 °C 2
Storage Temperature Range TSTG -55 175 °C 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: Lead Free Plating (Matte Tin Finish). Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: SMBJ28AQ-13-F
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smbj28aq-13-f-etched.step / smbj28aq-13-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj28aq-13-f.step / smbj28aq-13-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (6 pp, sha256 8fe2bbc08e205227, retrieved 2026-10-27, tier: manufacturer)
  • 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