# PRG21BB150MB1RK

**Murata Electronics** · Resettable Fuses · 0805

PRG21BB150MB1RK from Murata Electronics, 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 fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Murata Electronics |
| Package | 0805 |
| 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. Voltage (DC) |  |  |  | 20 | V | DC | 1 |
| Max. Current |  |  |  | 1.6 | A | Passed continuously without tripping at 25°C and 60°C | 1 |
| Resistance tolerance (code M) |  | -20 |  | 20 | % | Tolerance letter M = ±20%, resistance at 25°C | 1 |
| Resistance (nominal) |  |  | 15 |  | ohm | At 25°C | 1 |

## CAD (KiCad official)

- Symbol: `PRG21BB150MB1RK`
- Footprint: `Fuse:Fuse_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `prg21bb150mb1rk-etched.step` / `prg21bb150mb1rk-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `prg21bb150mb1rk.step` / `prg21bb150mb1rk.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Murata Electronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903730800971776) (6 pp, sha256 `590d0e5634dfca86`, 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/prg21bb150mb1rk-datasheet.pdf)