Heat Pumps

Littelfuse provides a broad portfolio of components for heat pumps, including fuses, TVS diodes, gate drivers, and more. The heat pump market is growing quickly, driven by government initiatives to reduce greenhouse gas emissions and rising energy costs. With inverter-driven motors improving system efficiencies, heat pumps can now be used in a wide range of climates. Learn how Littelfuse technologies make heat pumps safer, more reliable, and more energy efficient. Heat pumps can be used in a wide range of climates due to the inverter-driven motors improving system efficiencies. These components are suitable for various applications such as energy management, security systems, HVAC systems, smoke detectors, and IoT-controlled appliances. Littelfuse offers protect, control, and sense technologies to improve buildings' reliability, safety, and energy efficiency.

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Qty. RoHS ECAD Model Series
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Littelfuse NTC Thermistors 10K OHM 1% PROBE ASSEMBLY
Datasheet
3,214In Stock
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 125 C 0.1 in 6 in 0.1 in 0.215 in Bulk
Littelfuse NTC Thermistors 2.2K OHM .1% DEG C PROBE ASMB
Datasheet
1,745In Stock
Min.: 1
Mult.: 1

USP 3892 K 2.252 kOhms 0.1 C Off-Board Wire Lead - 55 C + 105 C 0.225 in 12.58 in 0.225 in 0.58 in Bulk
Littelfuse NTC Thermistors NTC THERMISTOR 20K OHM 2% LUG
Datasheet
33In Stock
Min.: 1
Mult.: 1

USUR 3892 K 20 kOhms 20 mW 2 % Ring Lug Wire Lead - 40 C + 125 C 0.28 in 6 in 0.28 in 0.615 in Bulk

Littelfuse NTC Thermistors NTC THERMISTOR 1K OHM 2% LUG
Datasheet
53In Stock
Min.: 1
Mult.: 1

USUR 3892 K 1 kOhms 20 mW 2 % Ring Lug Wire Lead - 40 C + 125 C 0.28 in 0.615 in Bulk
Littelfuse NTC Thermistors NTC THERMISTOR 30K OHM 2% LUG
Datasheet
1In Stock
50Expected 9/15/2026
Min.: 1
Mult.: 1
USUR 3892 K 30 kOhms 20 mW 2 % Ring Lug Wire Lead - 40 C + 125 C 0.28 in 0.615 in Bulk
Littelfuse NTC Thermistors 10K OHM 1% PROBE ASSEMBLY
Datasheet
1,690In Stock
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 150 C 0.145 in 6 in 0.281 in 0.62 in Bulk
Littelfuse NTC Thermistors THERMISTOR, US SENSOR
Datasheet
126In Stock
250Expected 10/29/2026
Min.: 1
Mult.: 1

USP 3977 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 105 C 0.1772 in 9.1811 in 0.1772 in 1.1811 in Bulk
Littelfuse NTC Thermistors 10K OHM 1% PROBE ASSEMBLY
Datasheet
291In Stock
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Clip Mount Wire Lead - 55 C + 105 C 0.164 in 36.787 in 0.787 in 0.787 in Bulk
Littelfuse NTC Thermistors 10K OHM 1% PROBE TO220
Datasheet
525In Stock
500Expected 2/8/2027
Min.: 1
Mult.: 1

TO 3892 K 10 kOhms 1 % PCB Mount Radial - 55 C + 150 C TO-220-2 0.595 in 0.4 in 0.165 in Tube
Littelfuse NTC Thermistors 10K OHM 10% PROBE TO220
Datasheet
1,310In Stock
11,000On Order
Min.: 1
Mult.: 1

TO 3892 K 10 kOhms 5 % PCB Mount Radial - 55 C + 150 C TO-220-2 0.595 in 0.4 in 0.165 in Tube
Littelfuse NTC Thermistors 10K OHM 5% PROBE TO220
Datasheet
4,015In Stock
Min.: 1
Mult.: 1

TO 3892 K 10 kOhms 10 % PCB Mount Radial - 55 C + 150 C TO-220-2 0.595 in 0.4 in 0.165 in Tube
Littelfuse NTC Thermistors 10K OHM 1% PROBE ASSEMBLY
Datasheet
1,214In Stock
900On Order
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 105 C 0.25 in 51.5 in 0.25 in 2 in Bulk
Littelfuse NTC Thermistors NTC Thermistor Probe
Datasheet
188In Stock
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 105 C 0.25 in 14.25 in 0.314 in 2.25 in Bulk
Littelfuse NTC Thermistors 10K OHM .2% DEG C PROBE ASMB
Datasheet
463In Stock
200Expected 11/11/2026
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 0.2 C Off-Board Wire Lead - 55 C + 150 C 0.188 in 13.5 in 0.188 in 1.5 in Bulk
Littelfuse NTC Thermistors THERMISTOR, US SENSOR
Datasheet
153In Stock
50Expected 9/21/2026
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 125 C 0.02 in 12.15 in 0.02 in 0.15 in Bulk
Littelfuse NTC Thermistors THERMISTOR, US SENSOR
Datasheet
351In Stock
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Threaded Wire Lead - 55 C + 125 C 0.3125 in 3.25 in 0.3125 in 0.25 in Bulk
Littelfuse NTC Thermistors 10K OHM 1% PROBE ASSEMBLY
Datasheet
1,603In Stock
674On Order
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Ring Lug Wire Lead - 55 C + 105 C 0.16 in 13.3 in 0.4 in 1.3 in Bulk
Littelfuse NTC Thermistors 10K OHM 2% RING LUG ASMBLY
Datasheet
303In Stock
Min.: 1
Mult.: 1

USUR1000 3892 K 10 kOhms 20 mW 2 % Ring Lug Wire Lead - 40 C + 125 C 0.215 in 6 in 0.28 in 0.615 in Bulk
Littelfuse NTC Thermistors 10K OHM 1% PROBE ASSEMBLY
Datasheet
407In Stock
1,650Expected 9/15/2026
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 105 C 0.164 in 50.75 in 0.164 in 0.787 in Bulk
Littelfuse NTC Thermistors 10K OHM 1% PROBE ASSEMBLY
Datasheet
821In Stock
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 80 C 0.23 in 37.35 in 0.23 in 1.35 in Bulk
Littelfuse NTC Thermistors 100K OHM 2% RING LUG ASMBLY
Datasheet
70In Stock
Min.: 1
Mult.: 1

USUR1000 3892 K 100 kOhms 20 mW 2 % Ring Lug Wire Lead - 40 C + 125 C 15.621 mm 7.112 mm Bulk
Littelfuse NTC Thermistors THERMISTOR, US SENSOR
Datasheet
541In Stock
Min.: 1
Mult.: 1

TO 3892 K 5 kOhms 5 % PCB Mount Radial - 55 C + 150 C TO-220-2 0.595 in 0.4 in 0.165 in Tube
Littelfuse NTC Thermistors 10K OHM 1% PROBE ASSEMBLY
Datasheet
73In Stock
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 1 % Off-Board Wire Lead - 55 C + 105 C 0.25 in 25.25 in 0.25 in 1.25 in Bulk
Littelfuse NTC Thermistors 10K OHM 5% PROBE ASSEMBLY
Datasheet
35In Stock
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 5 % Off-Board Wire Lead - 55 C + 105 C 0.4375 in 6.56 in 0.4375 in 0.56 in Bulk
Littelfuse NTC Thermistors THERMISTOR, U.S. SENS
Datasheet
37In Stock
50Expected 12/31/2026
Min.: 1
Mult.: 1

USP 3892 K 10 kOhms 0.2 C Off-Board Wire Lead - 55 C + 150 C 0.125 in 26.5 in 0.125 in 2.5 in Bulk