component
1.5SMC300CA
Public Made by Adomby 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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1.5SMC300CA
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1-5smc300ca.step/1-5smc300ca.glbare 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, primarycathode-band convention(convention), consensusoff(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).