# KMOV0603A8R0K

**KUU** · Varistors · 0603

KMOV0603A8R0K from KUU, in a 0603. 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 | KUU |
| Package | 0603 |
| 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 |
|---|---|---|---|---|---|---|---|
| Max. working voltage (DC) | VDC |  |  | 7.5 | V |  | 2 |
| Max. working voltage (AC) | VAC |  |  | 5 | V |  | 2 |
| Max. clamping voltage | Vc |  |  | 30 | V | 8/20μs 1A | 2 |
| Peak current | Ip |  |  | 30 | A | 8/20μs | 2 |
| Energy | WT |  |  | 0.1 | J | 10/1000μs | 2 |
| Varistor voltage tolerance | ΔVB | -15 |  | 15 | % |  | 2 |
| Varistor voltage | VB |  | 18 |  | V | @1mA DC | 2 |
| Typical capacitance | Cp |  | 140 |  | pF | @1MHz | 2 |
| Operating and storage temperature range |  | -55 |  | 85 | °C | Operating and storage temperature range | 2 |
| Bending resistance: varistor voltage change | ΔV1mA/V1mA |  |  | 5 | % | Warp 2mm, speed <0.5mm/s, 10s | 2 |
| Resistance to soldering heat: varistor voltage change | ΔV1mA/V1mA |  |  | 10 | % | Solder 260±5℃, dip 5±1s | 3 |
| High temp. storage: varistor voltage change | ΔV1mA/V1mA |  |  | 10 | % | 125±2℃, 1000±24h | 3 |
| Maximum surge current: varistor voltage change | ΔV1mA/V1mA |  |  | 10 | % | 8/20μs, applied current Ip, ± polarity 1 time each | 3 |
| Maximum surge energy: varistor voltage change | ΔV1mA/V1mA |  |  | 10 | % | 10/1000μs, applied current Wmax, ± polarity 1 time each | 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 | Terminal Electrode (Ag/Ni/Sn three layers) | 1 |

## CAD (KiCad official)

- Symbol: `KMOV0603A8R0K`
- Footprint: `Resistor_SMD:R_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `kmov0603a8r0k-etched.step` / `kmov0603a8r0k-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `kmov0603a8r0k.step` / `kmov0603a8r0k.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KUU datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590918799434457088) (5 pp, sha256 `cec0286539a44922`, retrieved 2026-10-17, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/kmov0603a8r0k-datasheet.pdf)