# PRG18BB101MB1RB

**Murata Electronics** · Resettable Fuses · 0603

PRG18BB101MB1RB from Murata Electronics, 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 | Sn-plated electrode of the 100 ohm ±20% (at 25°C) PTC posistor, non-polarized, rated 24 V DC max and 300 mA max current, with hold current 21 mA at +25°C (15 mA at +60°C) and trip current 45 mA at +25°C (55 mA at -10°C). |
| 2 | 2 | passive | Sn-plated electrode of the 100 ohm ±20% (at 25°C) PTC posistor, non-polarized, rated 24 V DC max and 300 mA max current, with hold current 21 mA at +25°C (15 mA at +60°C) and trip current 45 mA at +25°C (55 mA at -10°C). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Murata Electronics |
| Package | 0603 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `PRG18BB101MB1RB`
- Footprint: `Fuse:Fuse_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `prg18bb101mb1rb-etched.step` / `prg18bb101mb1rb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `prg18bb101mb1rb.step` / `prg18bb101mb1rb.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/8589838584934137856) (6 pp, sha256 `a17e205c9e2fbb71`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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/prg18bb101mb1rb-datasheet.pdf)