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AC Protection & Motor Control in HVAC Solutions

Littelfuse AC Protection and Motor Control in HVAC Solutions are essential to improve energy efficiency in commercial and industrial buildings. These solutions include fuses, surge protection devices, voltage monitors, transducers, sensors, and time delay relays. Littelfuse AC Protection and Motor Control in HVAC products are designed for control units, rectifiers, inverters, communication interfaces, and user interfaces.

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Results: 192

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Part #

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

SM303J1K
Littelfuse
1: $1.79
349In Stock

Mfr. Part No.
SM303J1K

Mouser Part No
576-SM303J1K

Littelfuse

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

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Datasheet

349In Stock

$1.79

$1.71

$1.60

$1.50

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10K OHM +/-10%

SM103J1K
Littelfuse
1: $1.79
557In Stock

Mfr. Part No.
SM103J1K

Mouser Part No
803-SM103J1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors 10K OHM +/-10%

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Datasheet

557In Stock

$1.79

$1.71

$1.60

$1.53

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC 10K OHM +/-10%

SM103J1K-TR
Littelfuse
1: $0.681
3,610In Stock

Mfr. Part No.
SM103J1K-TR

Mouser Part No
803-SM103J1K-TR

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC 10K OHM +/-10%

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Datasheet

3,610In Stock

Cut Tape

$0.681

$0.644

$0.60

$0.571

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Reel

$0.423

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

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

SM502F1K
Littelfuse
1: $1.82
258In Stock

Mfr. Part No.
SM502F1K

Mouser Part No
803-SM502F1K

Littelfuse

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

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Datasheet

258In Stock

$1.82

$1.74

$1.63

$1.61

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 100K OHM 2% RING LUG ASMBLY

USUR1000-104G-06
Littelfuse
1: $15.11
105In Stock

Mfr. Part No.
USUR1000-104G-06

Mouser Part No
576-USUR1000-104G-06

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors 100K OHM 2% RING LUG ASMBLY

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Datasheet

105In Stock

$15.11

$13.47

$12.19

$11.56

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 2% RING LUG ASMBLY

USUR1000-103G-06
Littelfuse
1: $13.75
101In Stock

Mfr. Part No.
USUR1000-103G-06

Mouser Part No
803-USUR1000-103G-06

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 2% RING LUG ASMBLY

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Datasheet

101In Stock

$13.75

$12.44

$11.97

$11.38

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Min.: 1
Mult.: 1

Proximity Sensors 59140 030 PROX SENSOR

59140-030
Littelfuse
1: $8.31
301In Stock

Mfr. Part No.
59140-030

Mouser Part No
934-59140-030

Littelfuse

Proximity Sensors 59140 030 PROX SENSOR

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Datasheet

301In Stock

$8.31

$6.41

$5.71

$5.24

View

Min.: 1
Mult.: 1

Proximity Sensors PROX SENSOR MINI FLANGE MOUNT

59140-1-T-02-F
Littelfuse
1: $4.53
46In Stock
500Expected 27/5/2026

Mfr. Part No.
59140-1-T-02-F

Mouser Part No
934-59140-1-T-02-F

Littelfuse

Proximity Sensors PROX SENSOR MINI FLANGE MOUNT

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Datasheet

46In Stock

500Expected 27/5/2026

$4.53

$3.81

$3.68

$3.35

View

Min.: 1
Mult.: 1

Proximity Sensors 59140-3-S-02-A SENS

59140-3-S-02-A
Littelfuse
1: $8.85
348In Stock

Mfr. Part No.
59140-3-S-02-A

Mouser Part No
934-59140-3-S-02-A

Littelfuse

Proximity Sensors 59140-3-S-02-A SENS

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Datasheet

348In Stock

$8.85

$7.71

$7.30

$6.70

View

Min.: 1
Mult.: 1

Proximity Sensors 59140-3-T-02-A SENS

59140-3-T-02-A
Littelfuse
1: $8.73
230In Stock

Mfr. Part No.
59140-3-T-02-A

Mouser Part No
934-59140-3-T-02-A

Littelfuse

Proximity Sensors 59140-3-T-02-A SENS

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Datasheet

230In Stock

$8.73

$6.73

$6.30

$6.26

View

Min.: 1
Mult.: 1

Proximity Sensors 59140-3-T-02-F SENS

59140-3-T-02-F
Littelfuse
1: $8.23
112In Stock

Mfr. Part No.
59140-3-T-02-F

Mouser Part No
934-59140-3-T-02-F

Littelfuse

Proximity Sensors 59140-3-T-02-F SENS

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Datasheet

112In Stock

$8.23

$7.28

$6.88

$6.31

$5.24

Min.: 1
Mult.: 1

Proximity Sensors 59140-4-S-02-F SENS

59140-4-S-02-F
Littelfuse
1: $7.30
3In Stock
500Expected 15/6/2026

Mfr. Part No.
59140-4-S-02-F

Mouser Part No
934-59140-4-S-02-F

Littelfuse

Proximity Sensors 59140-4-S-02-F SENS

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Datasheet

3In Stock

500Expected 15/6/2026

$7.30

$5.64

$5.02

$4.60

$4.57

Min.: 1
Mult.: 1

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

SM103J1F
Littelfuse
1: $1.97
2,500Expected 6/5/2026

Mfr. Part No.
SM103J1F

Mouser Part No
576-SM103J1F

Littelfuse

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

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Datasheet

2,500Expected 6/5/2026

$1.97

$1.88

$1.77

$1.70

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

Littelfuse

Proximity Sensors PROX SENSOR MINI FLANGE MOUNT

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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

Littelfuse

Proximity Sensors PROX SENSOR MINI FLANGE MOUNT

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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

Littelfuse

Proximity Sensors 200V 1000mm TINNED LEADS

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Datasheet

237Expected 11/6/2026

$8.94

$6.89

$6.14

$5.64

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors CUSTOM TEMPERATURE SENSOR

SM104J1F
Littelfuse
1: $3.09
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SM104J1F

Mouser Part No
576-SM104J1F

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors CUSTOM TEMPERATURE SENSOR

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Datasheet

Non-Stocked Lead-Time 12 Weeks

$3.09

$2.38

$1.99

$1.95

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 4.7K OHM 10%

SM472F1K
Littelfuse
1,000: $1.11
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SM472F1K

Mouser Part No
576-SM472F1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 4.7K OHM 10%

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Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.11

Min.: 1,000
Mult.: 1,000

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

Littelfuse

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

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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 500 OHM +/-10%

SM501B1K
Littelfuse
500: $1.40
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SM501B1K

Mouser Part No
803-SM501B1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors 500 OHM +/-10%

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Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.40

$1.34

$1.29

Min.: 500
Mult.: 500

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 10% MELF

SM102E1K
Littelfuse
1: $2.85
Non-Stocked

Mfr. Part No.
SM102E1K

Mouser Part No
576-SM102E1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 10% MELF

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Datasheet

Non-Stocked

$2.85

$2.14

$1.71

$1.61

View

Min.: 1
Mult.: 1

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

SM103G1K
Littelfuse
1: $2.86
Non-Stocked

Mfr. Part No.
SM103G1K

Mouser Part No
576-SM103G1K

Littelfuse

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

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Datasheet

Non-Stocked

$2.86

$2.15

$1.72

$1.63

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 0.5C MELF

SM104J1O-TR
Littelfuse
5,000: $0.98
Non-Stocked

Mfr. Part No.
SM104J1O-TR

Mouser Part No
576-SM104J1O-TR

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 0.5C MELF

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Datasheet

Non-Stocked

$0.98

Min.: 5,000
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 10% MELF

SM104R1K
Littelfuse
1: $2.85
Non-Stocked

Mfr. Part No.
SM104R1K

Mouser Part No
576-SM104R1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 10% MELF

Learn More

Datasheet

Non-Stocked

$2.85

$2.14

$1.71

$1.61

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.186K OHM MELF

SM222E1K
Littelfuse
1: $2.85
Non-Stocked

Mfr. Part No.
SM222E1K

Mouser Part No
576-SM222E1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.186K OHM MELF

Learn More

Datasheet

Non-Stocked

$2.85

$2.14

$1.71

$1.61

View

Min.: 1
Mult.: 1

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