component
1.5SMC18A-E3
Public Made by Adomby adom
Vishay Intertech TVS, SMC(DO-214AB). Pinout cross-checked by two models against the datasheet, 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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Contents
README
markdown1.5SMC18A-E3
Vishay Intertech · TVS · SMC(DO-214AB)
1.5SMC18A-E3 from Vishay Intertech, in a SMC(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 terminal of the uni-directional TVS, marked by the cathode band, with VWM 15.3 V, VBR 17.1 V to 18.9 V at 1.0 mA and VC 25.2 V max at 59.5 A IPPM. |
| 2 | A | passive | Anode terminal of the uni-directional TVS, at the end opposite the cathode band, with 1500 W peak pulse power (10/1000 μs) and 200 A peak forward surge current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SMC(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 | VBR | 17.1 | 18.9 | V | at IT = 1.0 mA | 2 | |
| Stand-off voltage | VWM | 15.3 | V | 2 | |||
| Maximum reverse leakage at VWM | ID | 1 | μA | at VWM | 2 | ||
| Maximum peak pulse current | IPPM | 59.5 | A | 10/1000 μs waveform | 2 | ||
| Maximum clamping voltage | VC | 25.2 | V | at IPPM | 2 | ||
| Maximum temperature coefficient of VBR | 0.089 | %/°C | 2 | ||||
| Peak power dissipation | PPPM | 1500 | W | 10/1000 μs waveform, TA = 25 °C | 1 | ||
| Power dissipation on infinite heatsink | PD | 6.5 | W | TA = 50 °C | 1 | ||
| Peak forward surge current (uni-directional only) | IFSM | 200 | A | 8.3 ms single half sine-wave | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -65 | 150 | °C | 1 | ||
| Thermal resistance, junction to ambient | RθJA | 75 | °C/W | Mounted on minimum recommended pad layout | 3 | ||
| Thermal resistance, junction to leads | RθJL | 15 | °C/W | 3 |
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 | Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 | 1 |
CAD (KiCad official)
- Symbol:
1.5SMC18A-E3 - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
1-5smc18a-e3-etched.step/1-5smc18a-e3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1-5smc18a-e3.step/1-5smc18a-e3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (5 pp, sha256
a23cefcecb0250d8, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).