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Murata PRG18BC4R7MM1RB Overcurrent Protection Thermistor

The PRG18BC4R7MM1RB is a surface-mount PTC thermistor designed for overcurrent protection in electronic circuits. It features rapid operation to safeguard against short circuits, automatically returning to normal after an overcurrent event. Its ceramic PTC material maintains stable resistance, suitable for circuit miniaturization due to its small size of 4.6x0.8mm. Ideal for current limiting and overcurrent protection applications, its rugged construction ensures durability and high reliability in various electronic safety systems.

Authorized Distributors
Source:DigiKey
Part No:PRG18BC4R7MM1RB
Stock:7898
Inv Date:06-02-2026
Price: Unit price: $0.38
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Part No:PRG18BC4R7MM1RB
Stock:12730
Inv Date:06-03-2026
Price: Unit price: $0.34
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Part No:PRG18BC4R7MM1RB
Stock:0
Inv Date:06-02-2026
Price: Unit price: $0.158
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Murata PRG18BC4R7MM1RB Overcurrent Protection Thermistor Specifications:

  • Max. Voltage: 20 V
  • Hold Current: 52 mA (at +85°C), 155 mA (at +25°C)
  • Trip Current: 330 mA (at +25°C), 420 mA (at -20°C)
  • Max. Current: 5000 mA
  • Resistance at 25°C: 4.79 Ω ±20%
  • Size: 4.6 x 0.8 mm (0.6 x 0.3 inches)
  • Operating Temperature Range: -20°C to 85°C
  • Shape: SMD
  • Mass: 0.004 g
  • Maximum Voltage: 20 V
  • Operating Time: Typical curve available
  • Resistance Change: 94 (at 25°C with resistance variation up to ±20%)

Buy the Murata Series PRG Protection: PRG18BC4R7MM1RB

Purchase the Murata PRG18BC4R7MM1RB SMD PTC thermistor online now to ensure reliable overcurrent protection for your electronic circuits. Its compact size of 4.6x0.8mm makes it ideal for circuit miniaturization, providing rapid response to short circuit conditions and automatic reset after activation. Designed for durability and stability, this product is perfect for safeguarding devices in various industrial and consumer electronics. Secure your supply chain and enhance circuit safety by ordering this high-quality protection device today.

Get Murata PRG18BC4R7MM1RB today—built for precise, reliable overcurrent protection in compact electronic circuits.

Frequently Asked Questions

Where can I buy Murata PRG18BC4R7MM1RB?

You can click on the BUY or RFQ button to purchase PRG18BC4R7MM1RB from an authorized Murata distributor.

How do I troubleshoot issues or seek technical support for part PRG18BC4R7MM1RB?

You can download the PRG18BC4R7MM1RB datasheet or visit the Murata website for support.

Who is the manufacturer of PRG18BC4R7MM1RB?

Murata

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