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SMAJ8.5AQ-13-F

Diodes Incorporated · TVS · SMA

SMAJ8.5AQ-13-F from Diodes Incorporated, in a SMA. 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, identified by the cathode band on the uni-directional SMAJ8.5AQ, which has 8.5V reverse standoff voltage, 9.44V to 10.4V breakdown at 1.0mA and 14.4V maximum clamping at 27.7A.
2 A passive Anode, the terminal opposite the cathode band, which is held at or below cathode potential in normal operation, with 10µA maximum reverse leakage at VRWM of 8.5V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SMA
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 Standoff Voltage VRWM 8.5 V 3
Breakdown Voltage VBR 9.44 10.4 V @ IT = 1.0 mA; IT pulse 10ms to 15ms 3
Max Reverse Leakage IR 10 µA @ VRWM 3
Max Clamping Voltage VC 14.4 V @ IPP = 27.7 A, 10x1000μs waveform 3
Max Peak Pulse Current IPP 27.7 A 10x1000μs waveform 3
Peak Pulse Power Dissipation PPK 400 W Non-repetitive current pulse, derated above TA = +25°C 2
Peak Forward Surge Current IFSM 40 A 8.3ms single half sine wave superimposed on rated load; uni-directional only 2
Steady-State Power Dissipation PM(AV) 1 W @ TL = +75°C 2
Instantaneous Forward Voltage VF 3.5 V @ IPP = 35A; uni-directional 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: SMAJ8.5AQ-13-F
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: smaj8-5aq-13-f-etched.step / smaj8-5aq-13-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj8-5aq-13-f.step / smaj8-5aq-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 5aa5832480b30857, retrieved 2026-10-26, 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