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Murata PRG21BC4R7MM1RA Surface-mount PTC fuse

The PRG21BC4R7MM1RA is a thermal safety device designed as a surface-mount PTC resettable fuse with high current capacity and temperature protection, ideal for overcurrent and short circuit protection in electronic circuits. It features rapid operation, stable resistance after tripping, and is suitable for miniaturized circuits due to its small size (2.0x1.25mm). The device is rated for 30V max voltage, with hold current of 60mA, and trip currents ranging from 330mA to 420mA, functioning reliably across temperatures from -20°C to 85°C, with a weight of only 0.009g.

Authorized Distributors
Source:Newark
Part No:PRG21BC4R7MM1RA
Stock:17
Inv Date:06-02-2026
Price: Unit price: $0.11
Buy/RFQ:
Source:DigiKey
Part No:PRG21BC4R7MM1RA
Stock:7257
Inv Date:06-02-2026
Price: Unit price: $0.57
Buy/RFQ:
Part No:PRG21BC4R7MM1RA
Stock:5766
Inv Date:06-03-2026
Price: Unit price: $0.5
Buy/RFQ:
Part No:PRG21BC4R7MM1RA
Stock:4000
Inv Date:06-02-2026
Price: Unit price: $0.235
Buy/RFQ:
Source:Arrow EU
Part No:PRG21BC4R7MM1RA
Stock:4000
Inv Date:06-03-2026
Price: N/A
Buy/RFQ:

Murata PRG21BC4R7MM1RA Surface-mount PTC fuse Specifications:

  • Max. Voltage: 30V
  • Hold Current: 60mA
  • Hold Current (at +25°C): 155mA
  • Trip Current (at +25°C): 330mA
  • Trip Current (at -20°C): 420mA
  • Max. Current: 8000mA
  • Resistance at 25°C: 4.79Ω
  • Resistance Tolerance at 25°C: +20%
  • Operating Temperature Range: -20°C to 85°C
  • Size Code: 2.0x1.25mm
  • Shape: SMD
  • Mass: 0.009g

Buy the Murata Series PRG21BC4R7MM: Overcurrent Protection Fuse

Buy the Murata Series PRG21BC4R7MM1RA surface-mount PTC fuse online today to secure your electronic circuit’s safety with rapid response overcurrent protection. This small 2.0x1.25mm device offers high current capacity up to 8000mA, stable resistance after operation, and a wide temperature range from -20°C to 85°C. Its lightweight design of only 0.009g makes it ideal for miniaturized circuits. Ensure your projects are protected with this reliable, reusable resettable fuse available for quick online purchase.

Order your Murata Series PRG21BC4R7MM1RA surface-mount resettable fuse today and enhance circuit safety with reliable overcurrent protection.

Frequently Asked Questions

Where can I buy Murata PRG21BC4R7MM1RA?

You can click on the BUY or RFQ button to purchase PRG21BC4R7MM1RA from an authorized Murata distributor.

How do I troubleshoot issues or seek technical support for part PRG21BC4R7MM1RA?

You can download the PRG21BC4R7MM1RA datasheet or visit the Murata website for support.

Who is the manufacturer of PRG21BC4R7MM1RA?

Murata

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