UL Recognized Thermistors
U.S. Sensor/Littelfuse has two UL-recognized thermistors: the USUR Series and the USUG Series
U.S. Sensor/Littelfuse has two styles of UL-recognized thermistors, a Ring Lug probe assembly (USUR Series), as well as a DO-35 style glass encapsulated device (USUG Series). The Ring Lug "USUR" series has a 125°C maximum operating temperature with 28 AWG lead wire and a #6 mounting hole stud size. The DO-35 "USUG" series has a maximum operating temperature of 150°C and is hermetically sealed in a glass package resulting in excellent long term reliability and stability. These products are offered in a wide variety of resistance values and resistance tolerances.
USUR Series
| Image | Manufacturer Part Number | Description | Available Quantity | Price | ||
|---|---|---|---|---|---|---|
![]() | ![]() | USUR1000-103G-06 | THERM NTC 10KOHM 3892K RING LUG | 857 - Immediate | $14,719.00 | View Details |
![]() | ![]() | USUR1000-103J-06 | THERM NTC 10KOHM 3892K RING LUG | 50 - Immediate | $15,150.00 | View Details |
![]() | ![]() | USUR1000-104G-06 | THERMISTOR NTC 100KOHM 3892K LUG | 57 - Immediate | $16,177.00 | View Details |
USUG Series
| Image | Manufacturer Part Number | Description | Available Quantity | Price | ||
|---|---|---|---|---|---|---|
![]() | ![]() | USUG1000-103G | THERMISTOR NTC 10KOHM 3892K DO35 | 290 - Immediate | $1,860.00 | View Details |
![]() | ![]() | USUG1000-103J | THERMISTOR NTC 10KOHM 3892K DO35 | 595 - Immediate | $1,637.00 | View Details |


