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Murata PRG21AR420MB1RA Overcurrent Protection Posistor

The PRG21AR420MB1RA is a Posistor® designed for overcurrent protection, featuring a resistance of 420hm +20%, a maximum voltage of 20V, and a maximum current of 590mA. It operates effectively in normal environments, offering reliable circuit protection against overloads at various temperatures. This component is suitable for general electronic equipment, office devices, and measurement tools. Its compact size, Sn-plated electrodes, and ceramic body make it a durable and essential safety device in electronic circuit design, with easy integration into protection circuits.

Authorized Distributors
Source:Newark
Part No:PRG21AR420MB1RA
Stock:853
Inv Date:06-02-2026
Price: Unit price: $0.421
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Source:DigiKey
Part No:PRG21AR420MB1RA
Stock:2839
Inv Date:06-02-2026
Price: Unit price: $0.54
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Part No:PRG21AR420MB1RA
Stock:2452
Inv Date:06-03-2026
Price: Unit price: $0.45
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Part No:PRG21AR420MB1RA
Stock:822
Inv Date:06-03-2026
Price: N/A
Buy/RFQ:

Murata PRG21AR420MB1RA Overcurrent Protection Posistor Specifications:

  • Resistance: 420hm +20%
  • Voltage: 20V
  • Max. Current: 590mA
  • Trip Current: 100mA at +25°C, 130mA at -10°C
  • Dimensions: Electrode length 2.00±0.20 mm, width 1.25±0.20 mm, thickness 0.90±0.20 mm
  • Material: BaTiO3 Semiconductive Ceramic, Sn Plate Electrodes
  • Operating temperature range: -10°C to +85°C
  • Packaging: 4000 pcs/reel
  • Resistance-Temperature characteristic: Resistance decreases as temperature rises, typical curve shown
  • Storage Conditions: -10°C to +40°C, less than 85%RH, avoid corrosive gases
  • Soldering: Reflow process, max temperature 270°C for within specified time, avoid mechanical shocks

Buy the MuRata PRG21AR420MB1RA – Reliable Overcurrent Protection for Industrial Applications

Secure your electronic circuits with the MuRata Posistor designed for overcurrent protection. Featuring 420hm resistance and a max voltage of 20V, this device ensures safety against overloads. Its compact ceramic body and Sn-plated electrodes enable easy installation in variety of industrial and household electronic devices. Suitable for general protection applications, it provides dependable circuit shutdown during overload conditions, preventing damage. Order online today for fast delivery and enhance the safety and stability of your electronic systems.

Buy MuRata PRG21AR420MB1RA now and experience unmatched reliability and performance in circuit protection and overload safety.

Frequently Asked Questions

Where can I buy Murata PRG21AR420MB1RA?

You can click on the BUY or RFQ button to purchase PRG21AR420MB1RA from an authorized Murata distributor.

How do I troubleshoot issues or seek technical support for part PRG21AR420MB1RA?

You can download the PRG21AR420MB1RA datasheet or visit the Murata website for support.

Who is the manufacturer of PRG21AR420MB1RA?

Murata

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