NTC thermistors are packaged as a Bulk. The DO-213AB, MELF package contains it for your convenience. In order for NTC thermistors to operate, the resistance tolerance must be ±10%. When using NTC thermistors, the temperature should be set to 220°C to ensure reliable operation.
SB272J1K Features
Package/Case: Bulk SB Series Operating Temperature: 220°C Mounting Type: Surface Mount
SB272J1K Applications
There are a lot of Littelfuse Inc. SB272J1K NTC Thermistors applications.
Temperature compensation of display backlighting (CCFL)