component
PRG21BC0R2MM1RA
Public Made by Adomby adom
Murata Electronics Resettable Fuses, 0805. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownPRG21BC0R2MM1RA
Murata Electronics · Resettable Fuses · 0805
PRG21BC0R2MM1RA 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 | One of two Sn-plated external electrodes on the BaTiO3 semiconductive ceramic PTC element; for the PRG21BC0R2MM1RA (0.2Ω) the ratings are max voltage DC6V and max current 10.0A. |
| 2 | 2 | passive | The other Sn-plated external electrode of the PTC element; the body is not insulated, so an adequate distance to surrounding components and wiring must be kept. |
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 |
|---|---|---|---|---|---|---|---|
| Resistance tolerance (part-number letter M) | -20 | 20 | % | Resistance at 25°C; Ratings table ±20% | 1 | ||
| Resistance at 25°C | R25 | 0.2 | ohm | 1 | |||
| Max. voltage | 6 | V | 1 | ||||
| Max. current | 10 | A | Footnote *2: passed continuously without tripping at 25°C, 60°C and 85°C | 1 | |||
| Hold current | 750 | mA | at +25°C | 1 | |||
| Hold current | 500 | mA | at +60°C | 1 | |||
| Hold current | 315 | mA | at +85°C | 1 | |||
| Trip current | 2100 | mA | at -20°C | 1 | |||
| Trip current | 2000 | mA | at -10°C | 1 | |||
| Trip current | 1620 | mA | at +25°C | 1 | |||
| Thermal dissipation coefficient of mounting state (rating basis) | 10 | mW/°C | Footnote *4: ratings valid for this mounting state; other values may differ | 1 |
CAD (KiCad official)
- Symbol:
PRG21BC0R2MM1RA - Footprint:
Fuse:Fuse_0805_2012Metric - 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files:
prg21bc0r2mm1ra-etched.step/prg21bc0r2mm1ra-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);prg21bc0r2mm1ra.step/prg21bc0r2mm1ra.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Murata Electronics datasheet (7 pp, sha256
3788dd6dd5891b67, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).