component

1.5SMC300CA

Public Made by Adom

by adom

Littelfuse ESD And Surge Protection (TVS/ESD), 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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1.5SMC300CA

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

1.5SMC300CA from Littelfuse, 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 Littelfuse
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 285 315 V @ IT = 1 mA 2
Maximum Clamping Voltage VC 414 V @ Ipp = 3.7 A 2
Maximum Reverse Leakage Current IR 1 µA @ VR 2
Maximum Peak Pulse Current Ipp 3.7 A 2
Reverse Stand-off Voltage VR 256 V 2
Peak Pulse Power Dissipation (single die) PPPM 1500 W 10/1000 µs waveform (Fig.4), Notes 1 and 2, single die parts 1
Power Dissipation on Infinite Heat Sink PD 6.5 W TL = 50 °C 1
Operating Temperature Range TJ -65 150 °C 1
Storage Temperature Range TSTG -65 175 °C 1
VBR Voltage Tolerance -5 5 % VBR, bi-directional CA part (5% tolerance) 2
VBR Temperature Coefficient αT 0.1 % VBR @ TJ = VBR@25°C x (1+αT x (TJ - 25)), typical value 1
Typical Thermal Resistance Junction to Lead RθJL 15 °C/W Typical 1
Typical Thermal Resistance Junction to Ambient RθJA 75 °C/W Typical 1

CAD (KiCad official)

  • Symbol: 1.5SMC300CA
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB (KiCad packages3D, STEP)
  • 3D model files: 1-5smc300ca-etched.step / 1-5smc300ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1-5smc300ca.step / 1-5smc300ca.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 d65ddb10854080bb, retrieved 2026-10-15, 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