Bulk is the package size of NTC thermistors. It's in the Bead package for convenience. To make NTC thermistors work, the resistance tolerance is ±0.2°C. The temperature of NTC thermistors should be set to -40°C~105°C in order to ensure reliable performance. It's 30mW power that the NTC thermistors can put out.
SC30F502W Features
Package/Case: Bulk SC Series Operating Temperature: -40°C~105°C
SC30F502W Applications
There are a lot of Amphenol Advanced Sensors SC30F502W NTC Thermistors applications.