component

SMAJ440A

Public Made by Adom

by adom

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

componentcircuit protectionsmaj440afactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 3h ago
viewers smaj440a: viewers · Ray 3h ago
package.json Publish 0.1.0 · Ray 3h ago
page.json Set visibility: public · Ray 3h ago
README.md Publish 0.1.0 · Ray 3h ago
smaj440a-etched.glb Publish 0.1.0 · Ray 3h ago
smaj440a-etched.step smaj440a: factory component page (tier=lcsc) · Ray 3h ago
smaj440a-hero.glb smaj440a: hero GLB from the etched model (keeps the MPN mark) · Ray 3h ago
smaj440a-hero.overlay.json Publish 0.1.0 · Ray 3h ago
smaj440a.glb Publish 0.1.0 · Ray 3h ago
smaj440a.kicad_mod Publish 0.1.0 · Ray 3h ago
smaj440a.kicad_sym Publish 0.1.0 · Ray 3h ago
smaj440a.lbr Publish 0.1.0 · Ray 3h ago
smaj440a.step Publish 0.1.0 · Ray 3h ago

SMAJ440A

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

SMAJ440A from ZHIDE, 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, marked by the color band on the unidirectional SMAJ440A (VRWM 440 V, VBR 492-543 V at 1 mA, VC max 713 V at 0.6 A IPP).
2 A passive Anode, the end opposite the color band on the unidirectional SMAJ440A; forward surge IFSM 40 A (8.3 ms half sine).

Key specifications

Parameter Value
Manufacturer ZHIDE
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
Reverse Stand-off Voltage VRWM 440 V SMAJ440A 2
Breakdown Voltage VBR 492 543 V @ IT = 1 mA 2
Max. Clamping Voltage VC 713 V @ IPP = 0.6 A 2
Max. Peak Pulse Current IPP 0.6 A 10/1000 us waveform 2
Max. Reverse Leakage IR 1 uA @ VRWM 2
Test Current IT 1 mA 2
Maximum instantaneous forward voltage VF 6.5 V at 25 A, unidirectional only; VF<6.5V for VBR>201V 1
Peak power dissipation PPP 400 W 10/1000 us waveform 1
Power dissipation on infinite heatsink PD 3 W TL = 75 °C 1
Peak forward surge current IFSM 40 A 8.3 ms single half sinewave, unidirectional only 1
Operating junction and storage temperature range TJ, TSTG -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: SMAJ440A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
  • 3D model files: smaj440a-etched.step / smaj440a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj440a.step / smaj440a.glb are the bare package body.

Provenance

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

  • Datasheet: ZHIDE datasheet (3 pp, sha256 58664a01272ef59d, 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