PRF21AR471QB5RA Overview

In order to protect the PTC thermistors from damage, they are packaged in 0805 (2012 Metric) packages. The PTC thermistors are packaged in the Tape & Reel (TR) for safety reasons. There are 2 terminations on the PTC thermistor. In this thermistor, there are 2 pins. During normal operation, this thermistor supplies 32V voltage. For PTC thermistors, 100μA is the current.

PRF21AR471QB5RA 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~150°C
Tolerance: 50%

PRF21AR471QB5RA Applications

There are a lot of Murata Electronics
PRF21AR471QB5RA PTC Thermistors applications.

• Industrial control and appliances
• Thermal compensation
• Display backlights
• Building automation
• Thermal threshold detection
• Motor control
• Chargers
• Thermal protection of winding in electric motors
• Secondary protection of battery packs
• Limit temperature monitoring