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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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Types of Sensors

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Results: 227

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Part #

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY

USP10972
Littelfuse
1: $8.44
1,640On Order

Mfr. Part No.
USP10972

Mouser Part No
803-USP10972

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY

Datasheet

1,640On Order

$8.44

$7.59

$7.28

$6.91

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY

USP7765
Littelfuse
1: $9.87
857On Order

Mfr. Part No.
USP7765

Mouser Part No
803-USP7765

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY

Datasheet

857On Order

$9.87

$8.90

$8.53

$8.10

View

Min.: 1
Mult.: 1

Proximity Sensors PROX SENSOR MINI FLANGE MOUNT

59140-020
Littelfuse
1: $5.50
1,000On Order

Mfr. Part No.
59140-020

Mouser Part No
934-59140-020

Proximity Sensors PROX SENSOR MINI FLANGE MOUNT

Datasheet

1,000On Order

$5.50

$4.27

$3.79

$3.48

View

Min.: 1
Mult.: 1

Proximity Sensors PROX SENSOR MINI FLANGE MOUNT

59140-1-V-02-A
Littelfuse
1: $5.18
1,288Expected 7/7/2026

Mfr. Part No.
59140-1-V-02-A

Mouser Part No
934-59140-1-V-02-A

Proximity Sensors PROX SENSOR MINI FLANGE MOUNT

Datasheet

1,288Expected 7/7/2026

$5.18

$4.02

$3.57

$3.27

View

Min.: 1
Mult.: 1

Proximity Sensors 200V 1000mm TINNED LEADS

59140-1-S-05-A
Littelfuse
1: $8.94
237Expected 11/6/2026

Mfr. Part No.
59140-1-S-05-A

Mouser Part No
934-59140-1-S-05-A

Proximity Sensors 200V 1000mm TINNED LEADS

Datasheet

237Expected 11/6/2026

$8.94

$6.89

$6.14

$5.64

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY

USP10978
Littelfuse
1: $28.02
57On Order

Mfr. Part No.
USP10978

Mouser Part No
803-USP10978

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY

Datasheet

57On Order

$28.02

$25.60

$24.71

$23.63

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 50K OHM 5% LUG

USUR1000-503J-06
Littelfuse
1: $17.22
Non-Stocked Lead-Time 3 Weeks

Mfr. Part No.
USUR1000-503J-06

Mouser Part No
576-USUR1000-503J-06

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 50K OHM 5% LUG

Datasheet

Non-Stocked Lead-Time 3 Weeks

$17.22

$15.22

$10.70

$10.23

$9.74

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10K OHM .5% DEG C PROBE ASMB

USP8798
Littelfuse
1: $70.47
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
USP8798

Mouser Part No
803-USP8798

NTC (Negative Temperature Coefficient) Thermistors 10K OHM .5% DEG C PROBE ASMB

Datasheet

Non-Stocked Lead-Time 12 Weeks

$70.47

$65.00

$62.95

$60.51

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS

USP10680
Littelfuse
250: $8.88
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
USP10680

Mouser Part No
576-USP10680

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS

Datasheet

Non-Stocked Lead-Time 20 Weeks

$8.88

Min.: 250
Mult.: 250

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS

USP10918
Littelfuse
200: $12.69
Non-Stocked

Mfr. Part No.
USP10918

Mouser Part No
576-USP10918

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS

Datasheet

Non-Stocked

$12.69

$12.30

$10.91

Min.: 200
Mult.: 100

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS

USP11805
Littelfuse
100: $22.03
Non-Stocked

Mfr. Part No.
USP11805

Mouser Part No
576-USP11805

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS

Datasheet

Non-Stocked

$22.03

$21.36

Quote

Min.: 100
Mult.: 100

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS

USP14439
Littelfuse
250: $10.12
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
USP14439

Mouser Part No
576-USP14439

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS

Datasheet

Non-Stocked Lead-Time 16 Weeks

$10.12

Min.: 250
Mult.: 250

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR

USP17957
Littelfuse
1: $31.65
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
USP17957

Mouser Part No
576-USP17957

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR

Datasheet

Non-Stocked Lead-Time 14 Weeks

$31.65

$27.97

$25.06

$23.74

$18.65

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.3125" PIPE

USP18845
Littelfuse
1: $16.83
Non-Stocked

Mfr. Part No.
USP18845

Mouser Part No
576-USP18845

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.3125" PIPE

Datasheet

Non-Stocked

$16.83

$14.87

$13.33

$12.62

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.500" PIPE

USP18846
Littelfuse
1: $16.83
Non-Stocked

Mfr. Part No.
USP18846

Mouser Part No
576-USP18846

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.500" PIPE

Datasheet

Non-Stocked

$16.83

$14.87

$13.33

$12.62

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.375" PIPE

USP18847
Littelfuse
1: $16.83
Non-Stocked

Mfr. Part No.
USP18847

Mouser Part No
576-USP18847

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.375" PIPE

Datasheet

Non-Stocked

$16.83

$14.87

$13.33

$12.62

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.250" PIPE

USP18848
Littelfuse
1: $16.83
Non-Stocked

Mfr. Part No.
USP18848

Mouser Part No
576-USP18848

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.250" PIPE

Datasheet

Non-Stocked

$16.83

$14.87

$13.33

$12.62

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.625" PIPE

USP18849
Littelfuse
1: $16.83
Non-Stocked

Mfr. Part No.
USP18849

Mouser Part No
576-USP18849

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.625" PIPE

Datasheet

Non-Stocked

$16.83

$14.87

$13.33

$12.62

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.875" PIPE

USP18851
Littelfuse
1: $16.83
Non-Stocked

Mfr. Part No.
USP18851

Mouser Part No
576-USP18851

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.875" PIPE

Datasheet

Non-Stocked

$16.83

$14.87

$13.33

$12.62

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.750" PIPE

USP18852
Littelfuse
1: $16.83
Non-Stocked

Mfr. Part No.
USP18852

Mouser Part No
576-USP18852

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 0.750" PIPE

Datasheet

Non-Stocked

$16.83

$14.87

$13.33

$12.62

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 1.0" PIPE CL

USP18853
Littelfuse
1: $16.83
Non-Stocked

Mfr. Part No.
USP18853

Mouser Part No
576-USP18853

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR, 10K 1%, 1.0" PIPE CL

Datasheet

Non-Stocked

$16.83

$14.87

$13.33

$12.62

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 3% LUG

USUR1000-102H-06
Littelfuse
1: $17.60
Non-Stocked

Mfr. Part No.
USUR1000-102H-06

Mouser Part No
576-USUR1000-102H-06

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 3% LUG

Datasheet

Non-Stocked

$17.60

$15.54

$13.93

$13.19

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 3% LUG

USUR1000-103H-06
Littelfuse
1: $17.60
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
USUR1000-103H-06

Mouser Part No
576-USUR1000-103H-06

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 3% LUG

Datasheet

Non-Stocked Lead-Time 16 Weeks

$17.60

$15.54

$13.93

$13.19

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 3% BEAD

USUR1000-104H-06
Littelfuse
1: $17.60
Non-Stocked

Mfr. Part No.
USUR1000-104H-06

Mouser Part No
576-USUR1000-104H-06

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 3% BEAD

Datasheet

Non-Stocked

$17.60

$15.54

$13.93

$13.19

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 20K OHM 3% LUG

USUR1000-203H-06
Littelfuse
1: $17.60
Non-Stocked

Mfr. Part No.
USUR1000-203H-06

Mouser Part No
576-USUR1000-203H-06

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 20K OHM 3% LUG

Datasheet

Non-Stocked

$17.60

$15.54

$13.93

$13.19

View

Min.: 1
Mult.: 1