component

SMA6J40CA

Public Made by Adom

by adom

Littelfuse ESD And Surge Protection (TVS/ESD), DO-214AC(SMA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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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docs Publish 0.1.0 · Ray 13d ago
viewers sma6j40ca: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
package.json Publish 0.1.0 · Ray 13d ago
page.json Set visibility: public · Ray 13d ago
README.md Publish 0.1.0 · Ray 13d ago
sma6j40ca-etched.glb Publish 0.1.0 · Ray 13d ago
sma6j40ca-etched.step sma6j40ca: factory component page (tier=lcsc) · Ray 13d ago
sma6j40ca-hero.glb sma6j40ca: hero GLB from the etched model (keeps the MPN mark) · Ray 13d ago
sma6j40ca-hero.overlay.json Publish 0.1.0 · Ray 13d ago
sma6j40ca.glb Publish 0.1.0 · Ray 13d ago
sma6j40ca.kicad_mod Publish 0.1.0 · Ray 13d ago
sma6j40ca.kicad_sym sma6j40ca: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
sma6j40ca.lbr sma6j40ca: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
sma6j40ca.step Publish 0.1.0 · Ray 13d ago

SMA6J40CA

Littelfuse · ESD And Surge Protection (TVS/ESD) · DO-214AC(SMA)

SMA6J40CA from Littelfuse, in a DO-214AC(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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package DO-214AC(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
Breakdown Voltage VBR 44.4 49.1 V @ IT 1 mA 2
Maximum Clamping Voltage VC 64.5 V @ Ipp 9.7 A 2
Maximum Reverse Leakage Current IR 1 µA @ VR 2
Maximum Peak Pulse Current Ipp 9.7 A 2
Peak Pulse Power Dissipation PPPM 600 W 10/1000µs waveform (Fig.2) (Note 1), (Note 2) 1
Power Dissipation on Infinite Heat Sink PD 3.3 W TL=50°C 1
Operating Temperature Range TJ -65 150 °C 1
Storage Temperature Range TSTG -65 175 °C 1
Reverse Stand off Voltage VR 40 V 2
Typical Thermal Resistance Junction to Lead RθJL 30 °C/W 1
Typical Thermal Resistance Junction to Ambient RθJA 120 °C/W 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 tin • Matte tin lead-free plated • Pb-free E3 means 2nd level 1

CAD (KiCad official)

  • Symbol: SMA6J40CA
  • Footprint: Diode_SMD:D_SMA
  • 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
  • 3D model files: sma6j40ca-etched.step / sma6j40ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sma6j40ca.step / sma6j40ca.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 ea8185a7ca141b55, retrieved 2026-10-26, 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