# VC1812K301R095

**KEMET** · Varistors · 1812

VC1812K301R095 from KEMET, in a 1812. 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 | 1 | passive | Terminal 1 of an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KEMET |
| Package | 1812 |
| 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 |
|---|---|---|---|---|---|---|---|
| Rated AC voltage (Vrms) | Vrms |  |  | 95 | V | Maximum continuous sinusoidal AC, <5% THD, at 25°C | 7 |
| Rated DC voltage (VDC) | VDC |  |  | 125 | V | Maximum continuous DC, <5% ripple, at 25°C | 7 |
| Rated transient average power dissipation | Pmax |  |  | 0.015 | W | Group of pulses in a specified isolated period, at 25°C | 7 |
| Rated peak single pulse transient current | Imax |  |  | 300 | A | 8/20 µs single pulse | 7 |
| Rated single pulse transient energy | Wmax |  |  | 5.2 | J | 10/1000 µs single pulse at maximum rated current | 7 |
| Response time | tr |  |  | 2 | ns |  | 3 |
| Threshold voltage temperature coefficient |  |  |  | 0.05 | %/°C |  | 3 |
| Operating ambient temperature |  | -55 |  | 125 | °C |  | 3 |
| Storage temperature range (mounted components) |  | -55 |  | 150 | °C | Storage without voltage applied | 3 |
| Varistor voltage tolerance (K = ±10%) | Vn | -10 |  | 10 | % | Tolerance code K in part number | 2 |
| Varistor voltage | Vn |  | 150 |  | V | Reference current 1 mA DC | 7 |
| Maximum peak class current | Ic |  | 5 |  | A | 8/20 µs class current pulse | 7 |
| Clamping voltage (protection level) | Vc |  | 250 |  | V |  | 7 |
| Capacitance | Ctyp |  | 340 |  | pF | At 1 kHz | 7 |
| Inductance | Ltyp |  | 2.5 |  | nH | 100 mA/ns | 7 |

## CAD (KiCad official)

- Symbol: `VC1812K301R095`
- Footprint: `Resistor_SMD:R_1812_4532Metric`
- 3D model: 1812 (KiCad packages3D, STEP)
- 3D model files: `vc1812k301r095-etched.step` / `vc1812k301r095-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `vc1812k301r095.step` / `vc1812k301r095.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KEMET datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590167786367852544) (15 pp, sha256 `3e518bc76099b084`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/vc1812k301r095-datasheet.pdf)