component

ASMCJ70CA

Public Made by Adom

by adom

PTTC(Polytronics Tech) TVS, DO-214AB. 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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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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ASMCJ70CA

PTTC(Polytronics Tech) · TVS · DO-214AB

ASMCJ70CA from PTTC(Polytronics Tech), in a DO-214AB. 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 PTTC(Polytronics Tech)
Package DO-214AB
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 (bi-directional, 5% tolerance) VBR 77.8 86 V @ IT = 1 mA 3
Maximum reverse leakage current IR 1 A @ VR = 70 V 3
Maximum clamping voltage VC 113 V @ IPP = 13.3 A 3
Maximum peak pulse current IPP 13.3 A 3
Peak pulse power dissipation PPPM 1500 Watt 10/1000 µs waveform (Note 1, Fig.1) 1
Steady state power dissipation PM(AV) 6.5 Watt TL = 75°C, lead lengths 0.375 in (9.5 mm) (Fig.5) 1
Peak forward surge current IFSM 200 Amp 8.3 ms single half sine wave (Note 2, Fig.6) 1
Operating junction and storage temperature range TJ, TSTG -55 150 °C 1
Reverse stand-off voltage VR 70 V 2

CAD (KiCad official)

  • Symbol: ASMCJ70CA
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB (KiCad packages3D, STEP)
  • 3D model files: asmcj70ca-etched.step / asmcj70ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); asmcj70ca.step / asmcj70ca.glb are the bare package body.

Provenance

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

  • Datasheet: PTTC(Polytronics Tech) datasheet (6 pp, sha256 c16bc06712e0052d, retrieved 2026-10-25, 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