Typically, NTC thermistors are packaged in a Tape & Reel (TR) package. Temperatures of 170°C provide reliable operation of NTC thermistors. It's best to operate NTC thermistors at -55°C for reliability. There is no danger of the fuse element deteriorating beyond a certain current limit for NTC thermistors.
B57234S221M51 Features
Package/Case: Tape & Reel (TR) 220Ohm Resistance Current Rating of 2A 20% Tolerance
B57234S221M51 Applications
There are a lot of TDK Corporation B57234S221M51 NTC Thermistors applications.
Temperature detection of battery cells
Temperature compensation of display contrast
Temperature compensation of display backlighting (CCFL)