component

SMAJ350A

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.

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SMAJ350A

BORN · TVS · SMA(DO-214AC)

SMAJ350A 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
Breakdown Voltage (min) VBR 391 V @ IT = 1 mA (unidirectional SMAJ350A) 4
Breakdown Voltage (max) VBR 432 V @ IT = 1 mA (unidirectional SMAJ350A) 4
Maximum Clamping Voltage VC 567 V @ Ipp = 0.7 A 4
Maximum Peak Pulse Current IPP 0.7 A 4
Maximum Reverse Leakage Current IR 1 uA @ VR = 350 V 4
Reverse Stand-Off Voltage VR 350 V Peak off-state voltage, maximum that can be applied while maintaining off state 4
Peak Pulse Power Dissipation PPPM 400 W Note1,2: non-repetitive 10/1000us waveform; mounted on 5x5mm copper pad per 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, duty cycle = 4 per minute maximum 2
Maximum Instantaneous Forward Voltage VFM 6.5 V at 50A, unidirectional only, VBR >= 201V (Note5) 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: SMAJ350A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: smaj350a-etched.step / smaj350a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj350a.step / smaj350a.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