# V0603MHS03NR

**Littelfuse** · Varistors · 0603

V0603MHS03NR from Littelfuse, 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 | Littelfuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum clamping voltage at 1A (8x20µs) | Vc |  |  | 135 | V | At 1A (8x20µs), V0603MHS03N (R suffix is packaging only) | 2 |
| Maximum ESD clamp voltage, 8kV contact |  |  |  | 300 | V | 8kV contact per IEC 61000-4-2 (Note 2); printed as <300 | 2 |
| Maximum ESD clamp voltage, 15kV air |  |  |  | 400 | V | 15kV air (Note 3); printed as <400 | 2 |
| Typical inductance (from impedance analysis) | L |  |  | 1 | nH | From impedance analysis; printed as <1.0 | 2 |
| Capacitance at 1MHz (1V p-p) | C | 1 | 3 | 6 | pF | At 1MHz (1V p-p); typ 3 pF is the nominal from part-number code 03 | 2 |
| Typical leakage current at specified DC voltage | IL |  | 0.5 |  | µA | At 3.5V DC | 2 |
| Typical leakage current at specified DC voltage | IL |  | 1 |  | µA | At 5.5V DC | 2 |
| Leakage current at maximum rated voltage | IL |  | 25 | 100 | µA | At maximum rated voltage, 0603 size; text states below 100µA, typically 25µA | 3 |
| DC voltage range (steady state applied voltage) | VM(DC) |  |  | 42 | V | Steady state applied voltage, V0402/0603MHS03; printed as ≤ 42 V | 1 |
| Operating ambient temperature range | TA | -40 |  | 125 | ºC | Operating ambient temperature | 1 |
| Storage temperature range | TSTG | -40 |  | 150 | ºC | Storage temperature | 1 |

## CAD (KiCad official)

- Symbol: `V0603MHS03NR`
- Footprint: `Resistor_SMD:R_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `v0603mhs03nr-etched.step` / `v0603mhs03nr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `v0603mhs03nr.step` / `v0603mhs03nr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590162627562135552) (5 pp, sha256 `9d0f0c1f9823c1cc`, retrieved 2026-10-19, 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/v0603mhs03nr-datasheet.pdf)