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Contents

README

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SMAJ17A

LGE · TVS · SMA(DO-214AC)

SMAJ17A from LGE, 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 LGE
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 18.9 V @IT = 1 mA; SMAJ17A (uni, 5% tolerance, marking BR) 2
Breakdown Voltage (max) VBR 20.9 V @IT = 1 mA; SMAJ17A (uni, 5% tolerance, marking BR) 2
Maximum Reverse Leakage IR 1 uA @VRWM = 17.0 V 2
Maximum Clamping Voltage VC 27.6 V @IPP = 14.49 A 2
Maximum Reverse Surge Current IPP 14.49 A 2
Peak Pulse Power dissipation PPP 400 W 10/1000 µs waveform (non-repetitive, note 1) 1
Peak forward surge current IFSM 40 A 8.3 ms single half sine-wave, unidirectional only (note 2) 1
Maximum instantaneous forward voltage VF 3.5 V at 25 A, unidirectional only; applies to devices with VBR < 200 V (note 3) 1
Power dissipation on infinite heatsink PD 1 W at TL = 75 °C 1
Operating junction and storage temperature range TJ, TSTG -55 150 °C 1

CAD (KiCad official)

  • Symbol: SMAJ17A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: smaj17a-etched.step / smaj17a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj17a.step / smaj17a.glb are the bare package body.

Provenance

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

  • Datasheet: LGE datasheet (4 pp, sha256 05508042bd2e6779, 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