# MS05W2F900NT5E

**UNI ROYAL Uniroyal Elec** · Current Sense Resistors / Shunt Resistors · 0805

MS05W2F900NT5E from UNI ROYAL Uniroyal Elec, in a 0805. 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 | UNI ROYAL Uniroyal Elec |
| Package | 0805 |
| Category | Resistors |
| 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 |
|---|---|---|---|---|---|---|---|
| Resistance tolerance (F = +/-1%) |  | -1 |  | 1 | % | Part-number 7th code F | 2 |
| Temperature coefficient of resistance (1/2W, 5mOhm~9mOhm) |  | -100 |  | 100 | ppm/°C | t1 +25°C, t2 +125°C; R2-R1 / (R1(t2-t1)) x 10^6 | 3 |
| Operating temperature range |  | -55 |  | 155 | °C | MS02~MS12 operating range | 6 |
| Rated power |  |  |  | 0.5 | W | Power at 70 °C (printed 1/2W) | 3 |
| Max. rating current |  |  |  | 10 | A |  | 3 |
| Max. overload current |  |  |  | 22.36 | A |  | 3 |
| Short-time overload resistance change |  | -1 |  | 1 | % | 5 times rated power for 5 s; plus ±0.001 Ω | 6 |
| Low temperature storage resistance change |  | -1 |  | 1 | % | IEC 60068-2-1 (Aa), lower limit temperature, 1000 h; plus ±0.001 Ω | 6 |
| High temperature exposure resistance change |  | -1 |  | 1 | % | MIL-STD-202 108A, upper limit temperature, 1000 h; plus ±0.001 Ω | 6 |
| Soldering heat resistance change |  | -1 |  | 1 | % | Dipped into solder at 260 °C for 10 s; plus ±0.005 Ω | 6 |
| Load life resistance change |  | -2 |  | 2 | % | 1000 h at RCWV or max working voltage (whichever less), 1.5 h ON / 0.5 h OFF, 70±2 °C ambient; plus ±0.001 Ω | 6 |
| Load life in humidity resistance change |  | -2 |  | 2 | % | 1000 h (1.5 h ON / 0.5 h OFF) at RCWV or max working voltage, 40±2 °C, 93±3 %RH; plus ±0.001 Ω | 6 |
| Reflow peak temperature | Tp |  |  | 260 | °C | Lead-free reflow; time within +0/-5 °C of peak 10 s; max 2 reflow passes | 7 |
| Storage temperature (recommended) |  | 15 |  | 35 | °C | Recommended warehouse storage condition | 9 |
| Storage humidity (recommended) |  | 25 |  | 75 | %RH | Recommended warehouse storage condition | 9 |
| Resistance (nominal, from part number) | R |  | 9 |  | mΩ |  | 2 |

## CAD (KiCad official)

- Symbol: `MS05W2F900NT5E`
- Footprint: `Resistor_SMD:R_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `ms05w2f900nt5e-etched.step` / `ms05w2f900nt5e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ms05w2f900nt5e.step` / `ms05w2f900nt5e.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UNI ROYAL Uniroyal Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757208517470236672) (9 pp, sha256 `b31ca0508cc0d982`, retrieved 2026-10-17, 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/ms05w2f900nt5e-datasheet.pdf)