PRF21AS471QB5RA Overview

Into 0805 (2012 Metric) packages, PTC thermistors are put to prevent damage. In order to ensure the safety of these PTC thermistors, they are packaged in Tape & Reel (TR). PTC thermistor terminations are 2. It has 2 pins. This thermistor can supply 32V nominally when in operation. The PTC thermistors are designed for 100μA current.

PRF21AS471QB5RA Features

Moisture Sensitivity Level (MSL): 1 (Unlimited)
Package / Case: 0805 (2012 Metric)
Mount: Surface Mount
Resistance @ 25°C: 470Ohm
Terminal Shape: WRAPAROUND
2 Pins
Series: POSISTOR® PRF18/21
Operating Temperature: -20°C~160°C
Tolerance: 50%

PRF21AS471QB5RA Applications

There are a lot of Murata Electronics
PRF21AS471QB5RA PTC Thermistors applications.

• Chargers
• Thermal protection of winding in electric motors
• Secondary protection of battery packs
• Limit temperature monitoring
• Over-temperature protection of power components
• DC/DC converters
• SMPS
• Notebooks
• Home appliances
• Dimmers