There is a Bulk package for NTC thermistors. The package LL-31, MICRO-MELF includes it for convenience. As a result, the resistance tolerance for NTC thermistors is ±10%. If you wish to ensure reliable performance, you should set the temperature of NTC thermistors to 220°C.
MM104J1K Features
Package/Case: Bulk MM Series Operating Temperature: 220°C Mounting Type: Surface Mount
MM104J1K Applications
There are a lot of Littelfuse Inc. MM104J1K NTC Thermistors applications.