component

1.5SMC300A

Public Made by Adom

by adom

hongjiacheng ESD And Surge Protection (TVS/ESD), DO-214AB(SMC). 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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1.5SMC300A

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

1.5SMC300A from hongjiacheng, 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 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 hongjiacheng
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 (unidirectional, 5% tolerance) minimum VBR 285 V @IT = 1 mA 3
Breakdown voltage (unidirectional, 5% tolerance) maximum VBR 315 V @IT = 1 mA 3
Maximum clamping voltage VC 414 V @IPP = 3.7 A 3
Reverse leakage current IR 1 μA @VRWM 3
Peak pulse power dissipation PPPM 1500 W 10/1000µs waveform (Fig.1), Note 1, Note 2 1
Power dissipation on infinite heat sink PM(AV) 6.5 W Ta=75℃ (Fig.5) 1
Peak forward surge current IFSM 100 A 8.3ms single half sine wave (Note 3, Fig.5) 1
Operating junction and storage temperature range TJ, TSTG -55 150 ℃ 1
Voltage tolerance (suffix A = 5% device) VBR -5 5 % Suffix 'A' denotes 5% tolerance device 3
Maximum temperature coefficient of breakdown voltage ΔVBR 0.1 % x VBR@25℃ x ΔT Typical maximum, ΔVBR = 0.1% × VBR@25℃ × ΔT 1
Typical thermal resistance junction to lead RθJ-L 15 ℃/W 1
Typical thermal resistance junction to ambient RθJ-A 75 ℃/W 1

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 •Matte tin lead-free Plated •Meets MSL level 1, per J-STD-020 1

CAD (KiCad official)

  • Symbol: 1.5SMC300A
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB(SMC) (KiCad packages3D, STEP)
  • 3D model files: 1-5smc300a-etched.step / 1-5smc300a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1-5smc300a.step / 1-5smc300a.glb are the bare package body.

Provenance

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

  • Datasheet: hongjiacheng datasheet (5 pp, sha256 c9947330107dbeb2, 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