component
SMCJ78CA-E3
Public Made by Adomby adom
Vishay Intertech ESD And Surge Protection (TVS/ESD), SMC(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.
main
SMCJ78CA-E3
Vishay Intertech · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
SMCJ78CA-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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
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 at IT (bi-directional, min) | VBR | 86.7 | V | IT = 1.0 mA (test current) | 2 | ||
| Breakdown voltage VBR at IT (bi-directional, max) | VBR | 95.8 | V | IT = 1.0 mA (test current) | 2 | ||
| Maximum reverse leakage at VWM | ID | 1 | μA | at VWM = 78 V | 2 | ||
| Maximum peak pulse surge current | IPPM | 11.9 | A | surge waveform per fig. 3, derate per fig. 2 (footnote 2) | 2 | ||
| Maximum clamping voltage at IPPM | VC | 126 | V | at IPPM | 2 | ||
| Peak pulse power dissipation | PPPM | 1500 | W | 10/1000 µs waveform | 1 | ||
| Power dissipation on infinite heatsink | PD | 6.5 | W | TA = 50 °C, infinite heatsink | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 150 | °C | 1 | ||
| Typical thermal resistance, junction to ambient air | RθJA | 75 | °C/ W | mounted on minimum recommended pad layout (note 1) | 3 | ||
| Typical thermal resistance, junction to lead | RθJL | 15 | °C/ W | 3 |
CAD (KiCad official)
- Symbol:
SMCJ78CA-E3 - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
smcj78ca-e3-etched.step/smcj78ca-e3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smcj78ca-e3.step/smcj78ca-e3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (5 pp, sha256
7d7eb2c7682a066e, retrieved 2026-10-14, 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).
# SMCJ78CA-E3
**Vishay Intertech** · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
SMCJ78CA-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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## 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 at IT (bi-directional, min) | VBR | 86.7 | | | V | IT = 1.0 mA (test current) | 2 |
| Breakdown voltage VBR at IT (bi-directional, max) | VBR | | | 95.8 | V | IT = 1.0 mA (test current) | 2 |
| Maximum reverse leakage at VWM | ID | | | 1 | μA | at VWM = 78 V | 2 |
| Maximum peak pulse surge current | IPPM | | | 11.9 | A | surge waveform per fig. 3, derate per fig. 2 (footnote 2) | 2 |
| Maximum clamping voltage at IPPM | VC | | | 126 | V | at IPPM | 2 |
| Peak pulse power dissipation | PPPM | | | 1500 | W | 10/1000 µs waveform | 1 |
| Power dissipation on infinite heatsink | PD | | | 6.5 | W | TA = 50 °C, infinite heatsink | 1 |
| Operating junction and storage temperature range | TJ, TSTG | -55 | | 150 | °C | | 1 |
| Typical thermal resistance, junction to ambient air | RθJA | | 75 | | °C/ W | mounted on minimum recommended pad layout (note 1) | 3 |
| Typical thermal resistance, junction to lead | RθJL | | 15 | | °C/ W | | 3 |
## CAD (KiCad official)
- Symbol: `SMCJ78CA-E3`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files: `smcj78ca-e3-etched.step` / `smcj78ca-e3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smcj78ca-e3.step` / `smcj78ca-e3.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Vishay Intertech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588938421498339328) (5 pp, sha256 `7d7eb2c7682a066e`, retrieved 2026-10-14, 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](docs/smcj78ca-e3-datasheet.pdf)