KT Thermistors

Semitec USA KT Thermistors are specially processed, highly reliable, and capable of detecting temperature within relatively small time constants. These monolithic chip thermistors are available in EIA 0402 and 0603 case sizes. The KT series offers an approximate response time of 2.2s to 5s and operates in the temperature range of -40°C to +125°C. Semitec USA KT Thermistors can be face-bonded to act as thermal compensators for ICs.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
B Parameter
Resistance
Power Rating
Tolerance
Mounting Style
Termination Style
Minimum Operating Temperature
Maximum Operating Temperature
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Length
Width
Height
Packaging
Semitec NTC (Negative Temperature Coefficient) Thermistors 103kohm 2% 0603
Datasheet
68In Stock
4,000Expected 2026/06/05
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 3435 K 10 kOhms 4.5 mW 2 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 10 kohm 1% 0402
Datasheet
20,342In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

KT 3435 K 10 kOhms 3.5 mW 1 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 1 mm 0.5 mm 0.6 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 10K Ohms 1% 0603
Datasheet
14,983In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 3435 K 10 kOhms 4.5 mW 1 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 10kohm 3% 0603
Datasheet
4,004In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 3435 K 10 kOhms 4.5 mW 3 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 100kohm 1% 0603
Datasheet
3,201In Stock
8,000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 4390 K 100 kOhms 4.5 mW 1 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 104kohm 3% 0603
Datasheet
468Expected 2026/06/05
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 4390 K 100 kOhms 4.5 mW 3 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 50kohm 1% 0603
Datasheet
7,933Expected 2026/05/15
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 4055 K 50 kOhms 4.5 mW 1 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 10 kOhms 2% 0402
Datasheet
Non-Stocked
Min.: 10,000
Mult.: 10,000
Reel: 10,000

KT 10 kOhms 2 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 1 mm 0.5 mm 0.6 mm Reel
Semitec NTC (Negative Temperature Coefficient) Thermistors 103kohm 3% 0402
Datasheet
N/A
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

KT 10 kOhms 3 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 1 mm 0.5 mm 0.6 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 104kohm 1% 0402
Datasheet
Non-Stocked
Min.: 10,000
Mult.: 10,000
Reel: 10,000

KT 100 kOhms 1 % SMD/SMT - 40 C + 125 C 0402 (1005 metric) 1 mm 0.5 mm 0.6 mm Reel
Semitec NTC (Negative Temperature Coefficient) Thermistors 104kohm 2% 0603
Datasheet
N/A
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 100 kOhms 2 % SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 503kohm 1% 0402
Datasheet
Non-Stocked
Min.: 10,000
Mult.: 10,000
Reel: 10,000

KT 50 kOhms 1 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 1 mm 0.5 mm 0.6 mm Reel
Semitec NTC (Negative Temperature Coefficient) Thermistors 503kohm 2% 0402
Datasheet
Non-Stocked
Min.: 10,000
Mult.: 10,000
Reel: 10,000

KT 50 kOhms 2 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 1 mm 0.5 mm 0.6 mm Reel
Semitec NTC (Negative Temperature Coefficient) Thermistors 503kohm 3% 0402
Datasheet
Non-Stocked
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

KT 50 kOhms 3 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 1 mm 0.5 mm 0.6 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 503kohm 2% 0603
Datasheet
N/A
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 50 kOhms 2 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel
Semitec NTC (Negative Temperature Coefficient) Thermistors 503kohm 3% 0603
Datasheet
Non-Stocked
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

KT 50 kOhms 3 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 1.6 mm 0.8 mm 0.95 mm Reel, Cut Tape, MouseReel