# ZV30K1812801NIR1

**BOURNS** · Varistors · 1812

ZV30K1812801NIR1 from BOURNS, 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 | BOURNS |
| 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 |
|---|---|---|---|---|---|---|---|
| DC Voltage Range (Vdc), steady state applied voltage | Vdc | 3 |  | 170 | V |  | 1 |
| AC Voltage Range (Vrms), steady state applied voltage | Vrms | 2 |  | 130 | V |  | 1 |
| Vn tolerance (part-number code K) | Vn | -10 |  | 10 | % | Part-number tolerance code K = ±10 % | 21 |
| Operating Ambient Temperature |  | -55 |  | 125 | °C |  | 1 |
| Storage Temperature Range |  | -55 |  | 150 | °C |  | 1 |
| Threshold Voltage Temperature Coefficient |  |  |  | 0.05 | %/°C | Printed as < +0.05 %/°C | 1 |
| Response Time |  |  |  | 2 | ns | Printed as < 2 ns | 1 |

## 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 |  | silver | type and silver/palladium terminated varistors form a reliable electrical contact and metallurgical bond between the end terminations and the solder pads. The bond between these two metallic surfaces  | 17 |

## CAD (KiCad official)

- Symbol: `ZV30K1812801NIR1`
- Footprint: `Resistor_SMD:R_1812_4532Metric`
- 3D model: 1812 (KiCad packages3D, STEP)
- 3D model files: `zv30k1812801nir1-etched.step` / `zv30k1812801nir1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `zv30k1812801nir1.step` / `zv30k1812801nir1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BOURNS datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904169131950080) (23 pp, sha256 `1b697ba274edb830`, retrieved 2026-10-18, 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/zv30k1812801nir1-datasheet.pdf)