PRG21BC6R8MM1RA Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC (positive temperature coefficient) resettable fuses, also referred to as polyfuses, are small electronic devices that autonomously reset themselves after protecting against excessive current surges. The PRG21BC6R8MM1RA is an example of a PTC resettable fuse from Littelfuse, Inc. It is particularly suited to consumer electronics, automotive, industrial and medical applications due to its reliable performance, compact size and UL certified 7.2A hold-current rating.

The PRG21BC6R8MM1RA features a current-sensing design where a “fusible” element is cased within the PTC polymeric material. The fusible element increases in resistance when it senses too much current running through the circuit, thus activating the PTC device. The increased resistance causes the current to drop, protecting the system from possible thermal overload damage.

When temperatures cool down, the fusible element gradually returns to its normal state and the current resumes flowing to the protected load—thus the term “resettable fuse”. The PRG21BC6R8MM1RA is designed such that resets normally happen within 60 seconds or less, without the need for manual resetting.

The PRG21BC6R8MM1RA is a 6.8mm x 6.8mm PTC resettable fuse that can be snapped onto a printed circuit board (PCB) for integration. Its UL 94V-0 flame-retardant case and molten-metal fuse ribbon provide reliable detection and response against excessive current surges. The device has a current carrying rating of 7.2A at 25°C with a 10A hold current rating. It is available in bulk amounts.

Overall, the PRG21BC6R8MM1RA PTC resettable fuse is an ideal choice for consumer electronics, automotive, industrial and medical applications due to its reliable performance, compact size and UL certified 7.2A hold-current rating. It is a cost-effective solution that helps ensure safety and protect valuable components.

The specific data is subject to PDF, and the above content is for reference