NTC (Negative Temperature Coefficient) Thermistors

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Series	B Parameter	Resistance	Power Rating	Tolerance	Mounting Style	Termination Style	Minimum Operating Temperature	Maximum Operating Temperature	Package/Case	Length	Width	Height	Packaging
NTC (Negative Temperature Coefficient) Thermistors 503kohm 2% 0603 503KT1608T-2P Semitec 1: $0.316 4,000In Stock	Mfr. Part No. 503KT1608T-2P Mouser Part No 954-503KT1608T-2P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 503kohm 2% 0603 Learn More about Semitec kt	Datasheet	4,000In Stock	Cut Tape $0.316 $0.266 $0.235 $0.188 Reel $0.134 View $0.157 $0.149 $0.128 $0.123 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 100kohm 1% 0603 104KT1608T-1P Semitec 1: $0.234 10,596In Stock	Mfr. Part No. 104KT1608T-1P Mouser Part No 954-104KT1608T-1P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 100kohm 1% 0603 Learn More about Semitec kt	Datasheet	10,596In Stock	Cut Tape $0.234 $0.217 $0.192 $0.181 Reel $0.136 View $0.159 $0.142 $0.13 $0.126 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 103kohm 2% 0603 103KT1608T-2P Semitec 1: $0.234 3,993In Stock	Mfr. Part No. 103KT1608T-2P Mouser Part No 954-103KT1608T-2P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 103kohm 2% 0603 Learn More about Semitec kt	Datasheet	3,993In Stock	Cut Tape $0.234 $0.215 $0.19 $0.179 Reel $0.134 View $0.157 $0.14 $0.127 $0.123 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 10kohm 3% 0603 103KT1608T-3P Semitec 1: $0.257 290In Stock 4,000Expected 2027/01/08	Mfr. Part No. 103KT1608T-3P Mouser Part No 954-103KT1608T-3P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 3% 0603 Learn More about Semitec kt	Datasheet	290In Stock 4,000Expected 2027/01/08	Cut Tape $0.257 $0.241 $0.176 $0.166 Reel $0.129 View $0.148 $0.142 $0.117 $0.115 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 104kohm 3% 0603 104KT1608T-3P Semitec 1: $0.222 2,468In Stock	Mfr. Part No. 104KT1608T-3P Mouser Part No 954-104KT1608T-3P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 104kohm 3% 0603 Learn More about Semitec kt	Datasheet	2,468In Stock	Cut Tape $0.222 $0.205 $0.18 $0.171 Reel $0.129 View $0.152 $0.145 $0.117 $0.115 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 50kohm 1% 0603 503KT1608T-1P Semitec 1: $0.234 6,748In Stock	Mfr. Part No. 503KT1608T-1P Mouser Part No 954-503KT1608T-1P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 50kohm 1% 0603 Learn More about Semitec kt	Datasheet	6,748In Stock	Cut Tape $0.234 $0.217 $0.192 $0.181 Reel $0.135 View $0.159 $0.142 $0.128 $0.126 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 10 kohm 1% 0402 103KT1005T-1P Semitec 1: $0.257 48,538On Order	Mfr. Part No. 103KT1005T-1P Mouser Part No 954-103KT1005T-1P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10 kohm 1% 0402 Learn More about Semitec kt	Datasheet	48,538On Order On Order Ship Dates Mfr. No: 103KT1005T-1P Stock: 0 On Order: 18,538 Expected 2026/10/16 30,000 Expected 2026/11/13 Factory Lead Time: 19 Weeks	Cut Tape $0.257 $0.235 $0.207 $0.197 Reel $0.131 View $0.169 $0.16 $0.145 $0.128 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 10K Ohms 1% 0603 103KT1608T-1P Semitec 1: $0.234 24,241On Order	Mfr. Part No. 103KT1608T-1P Mouser Part No 954-103KT1608T-1P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10K Ohms 1% 0603 Learn More about Semitec kt	Datasheet	24,241On Order On Order Ship Dates Mfr. No: 103KT1608T-1P Stock: 0 On Order: 241 Expected 2026/10/16 24,000 Expected 2026/12/31 Factory Lead Time: 17 Weeks	Cut Tape $0.234 $0.231 $0.229 $0.192 Reel $0.135 View $0.166 $0.151 $0.128 $0.126 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 10 kOhms 2% 0402 103KT1005T-2P Semitec 10,000: $0.113 Non-Stocked	Mfr. Part No. 103KT1005T-2P Mouser Part No 954-103KT1005T-2P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10 kOhms 2% 0402 Learn More about Semitec kt	Datasheet	Non-Stocked	Reel $0.113 $0.106	Min.: 10,000 Mult.: 10,000 : 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
NTC (Negative Temperature Coefficient) Thermistors 103kohm 3% 0402 103KT1005T-3P Semitec 1: $0.234 Non-Stocked	Mfr. Part No. 103KT1005T-3P Mouser Part No 954-103KT1005T-3P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 103kohm 3% 0402 Learn More about Semitec kt	Datasheet	Non-Stocked	Cut Tape $0.234 $0.194 $0.172 $0.138 Reel $0.097 View $0.121 $0.115 $0.104 $0.091 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 104kohm 1% 0402 104KT1005T-1P Semitec 10,000: $0.114 Non-Stocked	Mfr. Part No. 104KT1005T-1P Mouser Part No 954-104KT1005T-1P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 104kohm 1% 0402 Learn More about Semitec kt	Datasheet	Non-Stocked	Reel $0.114 $0.107	Min.: 10,000 Mult.: 10,000 : 10,000	KT		100 kOhms		1 %		SMD/SMT	- 40 C	+ 125 C	0402 (1005 metric)	1 mm	0.5 mm	0.6 mm	Reel
NTC (Negative Temperature Coefficient) Thermistors 104kohm 2% 0603 104KT1608T-2P Semitec 1: $0.269 Non-Stocked	Mfr. Part No. 104KT1608T-2P Mouser Part No 954-104KT1608T-2P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 104kohm 2% 0603 Learn More about Semitec kt	Datasheet	Non-Stocked	Cut Tape $0.269 $0.224 $0.198 $0.159 Reel $0.115 View $0.134 $0.128 $0.109 $0.106 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 503kohm 1% 0402 503KT1005T-1P Semitec 10,000: $0.114 Non-Stocked	Mfr. Part No. 503KT1005T-1P Mouser Part No 954-503KT1005T-1P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 503kohm 1% 0402 Learn More about Semitec kt	Datasheet	Non-Stocked	Reel $0.114 $0.107	Min.: 10,000 Mult.: 10,000 : 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
NTC (Negative Temperature Coefficient) Thermistors 503kohm 2% 0402 503KT1005T-2P Semitec 10,000: $0.113 Non-Stocked	Mfr. Part No. 503KT1005T-2P Mouser Part No 954-503KT1005T-2P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 503kohm 2% 0402 Learn More about Semitec kt	Datasheet	Non-Stocked	Reel $0.113 $0.106	Min.: 10,000 Mult.: 10,000 : 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
NTC (Negative Temperature Coefficient) Thermistors 503kohm 3% 0402 503KT1005T-3P Semitec 1: $0.234 Non-Stocked	Mfr. Part No. 503KT1005T-3P Mouser Part No 954-503KT1005T-3P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 503kohm 3% 0402 Learn More about Semitec kt	Datasheet	Non-Stocked	Cut Tape $0.234 $0.194 $0.172 $0.138 Reel $0.097 View $0.121 $0.115 $0.104 $0.091 MouseReel Available	Min.: 1 Mult.: 1 : 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
NTC (Negative Temperature Coefficient) Thermistors 503kohm 3% 0603 503KT1608T-3P Semitec 1: $0.257 Non-Stocked	Mfr. Part No. 503KT1608T-3P Mouser Part No 954-503KT1608T-3P	Semitec	NTC (Negative Temperature Coefficient) Thermistors 503kohm 3% 0603 Learn More about Semitec kt	Datasheet	Non-Stocked	Cut Tape $0.257 $0.215 $0.19 $0.152 Reel $0.113 View $0.133 $0.127 $0.108 $0.104 MouseReel Available	Min.: 1 Mult.: 1 : 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

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