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SMBJ22A

Public Made by Adom

by adom

Shandong Jingdao Microelectronics TVS, SMB. Pinout cross-checked by two models against the datasheet, 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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SMBJ22A

Shandong Jingdao Microelectronics · TVS · SMB

SMBJ22A from Shandong Jingdao Microelectronics, 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 Cathode passive Cathode terminal of the unipolar SMBJ22A TVS diode, which has a 22 V reverse stand-off voltage and a 24.4 V minimum to 26.9 V maximum breakdown voltage at 1 mA test current per Table 1.
2 Anode passive Anode terminal of the unipolar SMBJ22A TVS diode, which has a 600 W peak pulse power rating on the 10/1000 µs waveform.

Key specifications

Parameter Value
Manufacturer Shandong Jingdao Microelectronics
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 24.4 26.9 V IT = 1 mA (Table 1, SMBJ22A unidirectional row) 2
Reverse Leakage 1 µA at VRWM (Table 1, SMBJ22A row) 2
Max. Clamp Voltage VC 35.5 V at IPP = 16.9 A (Table 1, SMBJ22A row) 2
Peak Pulse Current IPP 16.9 A Table 1, SMBJ22A row; 10/1000 µs waveform 2
Reverse Stand-off Voltage VRWM 22 V Table 1, SMBJ22A row (unidirectional) 2
Peak Pulse Power Dissipation PPPM 600 W 10/1000 µs waveform (Note 1, Note 2, Fig.1) 1
Peak Forward Surge Current IFSM 100 A 8.3 ms single half sine-wave, JEDEC method (Note 3, Fig.4) 1
Typical Junction Capacitance CJ 390 pF VR = 4 V, f = 1 MHz 1
ESD Voltage per IEC61000-4-2, Contact VESD1 30 kV Contact discharge per IEC61000-4-2 1
ESD Voltage per IEC61000-4-2, Air VESD2 30 kV Air discharge per IEC61000-4-2 1
Typical Thermal Resistance Junction to Ambient RθJA 100 °C/W Mounted on 5 mm (0.13 mm thick) land areas (Note 2) 1
Operating Junction and Storage Temperature Range Tj, Tstg -65 150 °C 1

CAD (KiCad official)

  • Symbol: SMBJ22A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smbj22a-etched.step / smbj22a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj22a.step / smbj22a.glb are the bare package body.

Provenance

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

  • Datasheet: Shandong Jingdao Microelectronics datasheet (4 pp, sha256 11a0cb29fa635344, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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