component

SMAJ440CA

Public Made by Adom

by adom

BORN TVS, SMA(DO-214AC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcircuit protectionsmaj440cafactory-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 12d ago
viewers smaj440ca: viewers · Ray 12d ago
package.json Publish 0.1.0 · Ray 12d ago
page.json Set visibility: public · Ray 12d ago
README.md Publish 0.1.0 · Ray 12d ago
smaj440ca-etched.glb Publish 0.1.0 · Ray 12d ago
smaj440ca-etched.step smaj440ca: factory component page (tier=lcsc) · Ray 12d ago
smaj440ca-hero.glb smaj440ca: hero GLB from the etched model (keeps the MPN mark) · Ray 12d ago
smaj440ca-hero.overlay.json Publish 0.1.0 · Ray 12d ago
smaj440ca.glb Publish 0.1.0 · Ray 12d ago
smaj440ca.kicad_mod Publish 0.1.0 · Ray 12d ago
smaj440ca.kicad_sym Publish 0.1.0 · Ray 12d ago
smaj440ca.lbr Publish 0.1.0 · Ray 12d ago
smaj440ca.step Publish 0.1.0 · Ray 12d ago

SMAJ440CA

BORN · TVS · SMA(DO-214AC)

SMAJ440CA from BORN, in a SMA(DO-214AC). 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 BORN
Package SMA(DO-214AC)
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 VR 440 V 4
Breakdown voltage VBR 492 543 V IT = 1 mA 4
Maximum clamping voltage VC 713 V @ Ipp = 0.6 A 4
Maximum peak pulse current Ipp 0.6 A 4
Maximum reverse leakage current IR 1 uA @ VR = 440 V 4
Peak Pulse Power Dissipation PPPM 400 W Note1,2: non-repetitive 10/1000us pulse; mounted on 5x5mm copper pad to each terminal 2
Steady State Power Dissipation PD 3.3 W Note3: infinite heatsink at TA = 50◦C 2
Peak Forward Surge Current IFSM 40 A Note4: 8.3ms single half sine wave or equivalent square wave 2
Operating Temperature Range TJ -55 150 ◦C 2
Storage Temperature Range TSTG -55 150 ◦C 2
Typical Thermal Resistance Junction to Lead RθJL 30 ◦C/W 2
Typical Thermal Resistance Junction to Ambient RθJA 120 ◦C/W 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 • Lead Finish: Matte Tin • Case Material: Epoxy Molding Compound 1

CAD (KiCad official)

  • Symbol: SMAJ440CA
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: smaj440ca-etched.step / smaj440ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj440ca.step / smaj440ca.glb are the bare package body.

Provenance

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

  • Datasheet: BORN datasheet (7 pp, sha256 12b8d8927b041fa8, retrieved 2026-10-21, 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