component

SMCJ17A

Public Made by Adom

by adom

TWGMC ESD And Surge Protection (TVS/ESD), DO-214AB(SMC). Pinout cross-checked by two models against the datasheet, 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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SMCJ17A

TWGMC · ESD And Surge Protection (TVS/ESD) · DO-214AB(SMC)

SMCJ17A from TWGMC, in a DO-214AB(SMC). 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 Cathode passive Cathode terminal of the unidirectional SMCJ17A transient voltage suppressor, per the PINNING table for DO-214AB/SMC.
2 Anode passive Anode terminal of the unidirectional SMCJ17A transient voltage suppressor, per the PINNING table for DO-214AB/SMC.

Key specifications

Parameter Value
Manufacturer TWGMC
Package DO-214AB(SMC)
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 18.9 20.9 V @ IT = 1 mA, unidirectional SMCJ17A 2
Maximum Clamping Voltage VC 27.6 V @ IPP = 54.4 A, 10/1000 us waveform 2
Maximum instantaneous forward voltage VF 3.5 V at 100 A for unidirectional only 1
Peak Forward Surge Current IFSM 200 A 8.3 ms single half sine-wave, superimposed on rated load (JEDEC method) 1
Peak Pulse Power Dissipation PPPM 1500 W 10/1000 us waveform 1
Power dissipation on infinite heat sink PD 6.5 W Infinite heat sink at TA=50°C 1
Operating Junction and Storage Temperature Range Tj, Tstg -55 150 °C 1
Typical Thermal Resistance Junction to Ambient RθJA 75 °C/W Note 1: mounted on 8 mm land areas 1
Thermal Resistance Junction to Lead RθJL 15 °C/W 1

CAD (KiCad official)

  • Symbol: SMCJ17A
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB(SMC) (KiCad packages3D, STEP)
  • 3D model files: smcj17a-etched.step / smcj17a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smcj17a.step / smcj17a.glb are the bare package body.

Provenance

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

  • Datasheet: TWGMC datasheet (5 pp, sha256 2bb7845336b777a3, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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