component

1.0SMBJ20A

Public Made by Adom

by adom

PAKER ESD And Surge Protection (TVS/ESD), SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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1.0SMBJ20A

PAKER · ESD And Surge Protection (TVS/ESD) · SMB(DO-214AA)

1.0SMBJ20A from PAKER, in a SMB(DO-214AA). 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 cathode band on the uni-directional 1.0SMBJ20A device; connects to the positive side of the protected line (VRWM 18V, VBR 20V min).
2 A passive Anode of the uni-directional 1.0SMBJ20A device, the terminal opposite the cathode band, normally connected to ground/return.

Key specifications

Parameter Value
Manufacturer PAKER
Package SMB(DO-214AA)
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
Reverse Stand-Off Voltage VRWM 20 V 2
Breakdown Voltage VBR 22.2 24.5 V @IT = 1 mA 2
Test Current IT 1 mA 2
Maximum Clamping Voltage VC 32.4 V @IPP = 30.9 A 2
Peak Pulse Current IPP 30.9 A 10/1000 us 2
Reverse Leakage IR 1 uA @VRWM 2
Peak Pulse Power Dissipation PPPM 1000 W 10/1000 us waveform 1
Power Dissipation on Infinite Heat Sink PD 5 W TL=50°C 1
Peak Forward Surge Current IFSM 100 A 8.3ms single half sine-wave, unidirectional only 1
Operating Junction Temperature TJ -55 150 °C 1
Storage Temperature TSTG -55 150 °C 1

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 Copper (0.03mm thick) Copper Pads to each terminal. 3. Measured on 8.3ms single half sine-wave, or equivalent square wave, for Unidirectional device only. 1

CAD (KiCad official)

  • Symbol: 1.0SMBJ20A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: 1-0smbj20a-etched.step / 1-0smbj20a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1-0smbj20a.step / 1-0smbj20a.glb are the bare package body.

Provenance

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

  • Datasheet: PAKER datasheet (3 pp, sha256 4c534e93d97a4439, 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