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Ray Publish 0.1.0 44bc10e 7d ago

SMBJ26CA-Q

BOURNS · TVS · SMB(DO-214AA)

SMBJ26CA-Q from BOURNS, 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer BOURNS
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
Breakdown Voltage VBR 28.9 V @ IT (mA) = 1.0 2
Breakdown Voltage VBR 31.9 V @ IT (mA) = 1.0 2
Maximum Reverse Leakage IR 1 µA @ VRWM = 26 V 2
Maximum Clamping Voltage (10/1000 µs) Vc 42.1 V @ Ipp = 14.3 A (10/1000 µs) 2
Maximum Peak Pulse Current (10/1000 µs) Ipp 14.3 A (10/1000 µs) 2
Maximum Clamping Voltage (8/20 µs) Vc 54.7 V @ Ipp = 71.5 A (8/20 µs) 2
Maximum Peak Pulse Current (8/20 µs) Ipp 71.5 A (8/20 µs) 2
Minimum Peak Pulse Power Dissipation PPK 600 Watts TP = 1 ms (Note 1,2) 1
Peak Forward Surge Current IFSM 100 Amps 8.3 ms Single Half Sine Wave Superimposed on Rated Load (JEDEC Method) (Note 3) 1
Operating Temperature Range TJ -55 150 °C 1
Storage Temperature Range 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 2. Mounted on 5.0 mm2 (0.03 mm thick) copper pads to each terminal. 1

CAD (KiCad official)

  • Symbol: SMBJ26CA-Q
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: smbj26ca-q-etched.step / smbj26ca-q-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj26ca-q.step / smbj26ca-q.glb are the bare package body.

Provenance

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

  • Datasheet: BOURNS datasheet (6 pp, sha256 fd33918f2c178a02, retrieved 2026-10-30, 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