NTC (Negative Temperature Coefficient) Thermistors

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AT & ET Thermistors

Semitec USA AT and ET Thermistors are available in a variety of resistance values, sizes, and termination styles. These high-precision thermal sensing devices have a maximum operating temperature of 90°C, 105°C, or 110°C. The AT series feature extremely small B-value tolerance and resistance while ensuring accurate temperature detection within ±0.3°C. They require no adjustment between the control circuit and the sensor when used as a temperature gauge. The ET thermistors are a smaller version of the AT series. The ET series is highly reliable and offers a fast response time. These thermistors are ideally suited for medical equipment and thermometers.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SEK) 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	Diameter	Length	Width	Height	Packaging
NTC (Negative Temperature Coefficient) Thermistors 100kohm 3% 104ET-1 Semitec 1: 13,41 kr 170In Stock	Mfr. Part No. 104ET-1 Mouser Part No 954-104ET-1	Semitec	NTC (Negative Temperature Coefficient) Thermistors 100kohm 3% Learn More about Semitec atet	Datasheet	170In Stock	13,41 kr 10,08 kr 8,06 kr 7,58 kr View 7,40 kr 6,21 kr 5,77 kr 5,31 kr	Min.: 1 Mult.: 1	ET	4132 K	100 kOhms		3 %	PCB Mount	Radial	- 40 C	+ 90 C	1.5 mm	87 mm	1.5 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 20kohm 1% 203AT-2 Semitec 1: 5,64 kr 3 866In Stock	Mfr. Part No. 203AT-2 Mouser Part No 954-203AT-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 20kohm 1% Learn More about Semitec atet	Datasheet	3 866In Stock	5,64 kr 5,01 kr 5,00 kr 4,34 kr View 4,00 kr 3,64 kr	Min.: 1 Mult.: 1	AT	4013 K	20 kOhms	10 mW	1 %	PCB Mount	Radial	- 50 C	+ 110 C		17 mm	3.7 mm	2.4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 41kohm 3% 413ET-2 Semitec 1: 10,73 kr 200In Stock	Mfr. Part No. 413ET-2 Mouser Part No 954-413ET-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 41kohm 3% Learn More about Semitec atet	Datasheet	200In Stock	10,73 kr 8,19 kr 7,07 kr 6,81 kr View 5,80 kr 5,79 kr 5,04 kr 4,44 kr 4,07 kr	Min.: 1 Mult.: 1	ET		41 kOhms		3 %	PCB Mount	Radial	- 40 C	+ 100 C	1.6 mm	4 mm			Bulk
NTC (Negative Temperature Coefficient) Thermistors 83kohm 3% 833ET-2 Semitec 1: 8,30 kr 317In Stock	Mfr. Part No. 833ET-2 Mouser Part No 954-833ET-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 83kohm 3% Learn More about Semitec atet	Datasheet	317In Stock	8,30 kr 6,30 kr 5,43 kr 5,24 kr View 4,46 kr 4,45 kr 3,87 kr 3,59 kr 3,28 kr	Min.: 1 Mult.: 1	ET	4013 K	83 kOhms		3 %	PCB Mount	Radial	- 40 C	+ 100 C	1.6 mm	45 mm	1.6 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 232kohm 3% 234ET-2 Semitec 1: 8,30 kr 9In Stock	Mfr. Part No. 234ET-2 Mouser Part No 954-234ET-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 232kohm 3% Learn More about Semitec atet	Datasheet	9In Stock	8,30 kr 6,30 kr 5,43 kr 5,24 kr View 4,46 kr 4,45 kr 3,87 kr 3,59 kr 3,28 kr	Min.: 1 Mult.: 1	ET	4274 K	232 kOhms	3.5 mW	3 %	PCB Mount	Radial	- 40 C	+ 100 C	1.6 mm	45 mm	1.6 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% 103AT-2 Semitec 1: 6,41 kr 134 271In Stock 128 200Expected 2026-12-11	Mfr. Part No. 103AT-2 Mouser Part No 954-103AT-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Learn More about Semitec atet	Datasheet	134 271In Stock 128 200Expected 2026-12-11	6,41 kr 6,02 kr 5,63 kr 5,36 kr View 5,11 kr 4,59 kr 4,42 kr 4,04 kr	Min.: 1 Mult.: 1	AT	3435 K	10 kOhms		1 %	PCB Mount	Radial	- 50 C	+ 110 C		17 mm	3.7 mm	2.4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% 103AT-11 Semitec 1: 25,39 kr 4 227In Stock 8 000Expected 2027-01-08	Mfr. Part No. 103AT-11 Mouser Part No 954-103AT-11	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Learn More about Semitec atet	Datasheet	4 227In Stock 8 000Expected 2027-01-08	25,39 kr 24,29 kr 22,86 kr 21,98 kr View 20,99 kr 18,90 kr 18,24 kr 17,80 kr	Min.: 1 Mult.: 1	AT	3435 K	10 kOhms		1 %	Off-Board	Wire Lead	- 50 C	+ 105 C		600 mm	6 mm	5 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 150mm 103AT-4-10228 Semitec 1: 6,04 kr 7 507In Stock	Mfr. Part No. 103AT-4-10228 Mouser Part No 954-103AT-4-10228	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 150mm Learn More about Semitec atet	Datasheet	7 507In Stock	6,04 kr 5,79 kr 5,41 kr 5,14 kr View 4,90 kr 4,43 kr 4,25 kr 3,89 kr	Min.: 1 Mult.: 1	AT	3435 K	10 kOhms		1 %	Off-Board	Wire Lead	- 50 C	+ 90 C	2.5 mm	150 mm	2.5 mm	8 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 100mm 103AT-4-70261 Semitec 1: 7,74 kr 32 283In Stock	Mfr. Part No. 103AT-4-70261 Mouser Part No 954-103AT-4-70261	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 100mm Learn More about Semitec atet	Datasheet	32 283In Stock	7,74 kr 7,31 kr 6,84 kr 6,52 kr View 6,21 kr 5,62 kr 5,40 kr 5,07 kr	Min.: 1 Mult.: 1	AT	3435 K	10 kOhms		1 %	Off-Board	Wire Lead	- 50 C	+ 90 C	2.5 mm	100 mm	2.5 mm	8 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 175mm 103AT-4-70316 Semitec 1: 8,41 kr 7 476In Stock 27 000On Order	Mfr. Part No. 103AT-4-70316 Mouser Part No 954-103AT-4-70316	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 175mm Learn More about Semitec atet	Datasheet	7 476In Stock 27 000On Order On Order Ship Dates Mfr. No: 103AT-4-70316 Stock: 7 476 Can Dispatch Immediately On Order: 8 200 Expected 2026-11-13 18 800 Expected 2026-12-11 Factory Lead Time: 17 Weeks	8,41 kr 7,96 kr 7,45 kr 7,10 kr View 6,78 kr 6,12 kr 5,89 kr 5,42 kr	Min.: 1 Mult.: 1	AT	3435 K	10 kOhms		1 %	Off-Board	Wire Lead	- 50 C	+ 90 C	2.5 mm	175 mm	2.5 mm	8 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 50mm 103AT-4-70374 Semitec 1: 7,96 kr 27 553In Stock	Mfr. Part No. 103AT-4-70374 Mouser Part No 954-103AT-4-70374	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 50mm Learn More about Semitec atet	Datasheet	27 553In Stock	7,96 kr 7,48 kr 7,01 kr 6,67 kr View 6,36 kr 6,35 kr 5,67 kr 5,42 kr 4,97 kr	Min.: 1 Mult.: 1	AT	3435 K	10 kOhms		1 %	Off-Board	Wire Lead	- 50 C	+ 90 C	2.5 mm	50 mm	2.5 mm	8 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 120mm 103AT-4-70378 Semitec 1: 7,52 kr 5 062In Stock	Mfr. Part No. 103AT-4-70378 Mouser Part No 954-103AT-4-70378	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 120mm Learn More about Semitec atet	Datasheet	5 062In Stock	7,52 kr 7,12 kr 6,66 kr 6,34 kr View 6,06 kr 5,68 kr 5,46 kr 5,24 kr 4,81 kr	Min.: 1 Mult.: 1	AT	3435 K	10 kOhms		1 %	Off-Board	Wire Lead	- 50 C	+ 90 C	2.5 mm	120 mm	2.5 mm	8 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 1kohm 1% 102AT-2 Semitec 1: 7,74 kr 22In Stock 400On Order	Mfr. Part No. 102AT-2 Mouser Part No 954-102AT-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 1kohm 1% Learn More about Semitec atet	Datasheet	22In Stock 400On Order On Order Ship Dates Mfr. No: 102AT-2 Stock: 22 Can Dispatch Immediately On Order: 200 Expected 2027-01-19 200 Expected 2027-01-25 Factory Lead Time: 16 Weeks	7,74 kr 7,30 kr 6,84 kr 6,51 kr View 6,21 kr 5,60 kr 5,39 kr 4,95 kr	Min.: 1 Mult.: 1	AT	3100 K	1 kOhms		1 %	PCB Mount	Radial	- 50 C	+ 90 C		17 mm	3.7 mm	2.4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 3% 103ET-1 Semitec 1: 9,95 kr 215In Stock	Mfr. Part No. 103ET-1 Mouser Part No 954-103ET-1	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 3% Learn More about Semitec atet	Datasheet	215In Stock	9,95 kr 9,37 kr 8,06 kr 7,58 kr View 7,40 kr 7,21 kr 6,00 kr 5,77 kr 5,31 kr	Min.: 1 Mult.: 1	ET	3250 K	10 kOhms	3.5 mW	3 %	Off-Board	Wire Lead	- 40 C	+ 90 C	1.5 mm	87 mm	1.5 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 3% 103ET-2 Semitec 1: 10,62 kr 163In Stock	Mfr. Part No. 103ET-2 Mouser Part No 954-103ET-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 3% Learn More about Semitec atet	Datasheet	163In Stock	10,62 kr 8,18 kr 7,06 kr 6,80 kr View 5,79 kr 5,04 kr 4,44 kr 4,07 kr	Min.: 1 Mult.: 1	ET	3250 K	10 kOhms	3.5 mW	3 %	Off-Board	Wire Lead	- 40 C	+ 90 C	1.6 mm	45 mm	1.6 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 2% 103ETB Semitec 1: 7,74 kr 409In Stock	Mfr. Part No. 103ETB Mouser Part No 954-103ETB	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 2% Learn More about Semitec atet	Datasheet	409In Stock	7,74 kr 7,33 kr 6,87 kr 6,55 kr View 6,24 kr 6,23 kr 5,64 kr 5,42 kr 4,98 kr	Min.: 1 Mult.: 1	ET	3435 K	10 kOhms	3.5 mW	2 %	PCB Mount	Wire Lead	- 40 C	+ 90 C	1.6 mm	45 mm	1.6 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 2kohm 1% 202AT-2 Semitec 1: 10,62 kr 1 470In Stock	Mfr. Part No. 202AT-2 Mouser Part No 954-202AT-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 2kohm 1% Learn More about Semitec atet	Datasheet	1 470In Stock	10,62 kr 8,12 kr 7,00 kr 6,76 kr View 5,76 kr 5,01 kr 4,54 kr 4,15 kr	Min.: 1 Mult.: 1	AT	3182 K	2 kOhms	10 mW	1 %	PCB Mount	Radial	- 50 C	+ 90 C		17 mm	3.7 mm	2.4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 4kohm 3% 402ET-1 Semitec 1: 9,95 kr 590In Stock	Mfr. Part No. 402ET-1 Mouser Part No 954-402ET-1	Semitec	NTC (Negative Temperature Coefficient) Thermistors 4kohm 3% Learn More about Semitec atet	Datasheet	590In Stock	9,95 kr 8,42 kr 7,45 kr 7,10 kr View 6,78 kr 6,13 kr 5,10 kr 4,68 kr	Min.: 1 Mult.: 1	ET	3100 K	4 kOhms	3.5 mW	3 %	PCB Mount	Radial	- 40 C	+ 90 C	1.5 mm	87 mm	1.5 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 5kohm 1% 502AT-2 Semitec 1: 6,41 kr 981In Stock	Mfr. Part No. 502AT-2 Mouser Part No 954-502AT-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 5kohm 1% Learn More about Semitec atet	Datasheet	981In Stock	6,41 kr 6,02 kr 5,63 kr 5,36 kr View 5,11 kr 4,59 kr 4,42 kr 4,04 kr	Min.: 1 Mult.: 1	AT	3324 K	5 kOhms	10 mW	1 %	PCB Mount	Radial	- 50 C	+ 110 C		17 mm	3.7 mm	2.4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 50kohm 3% 503ET-1 Semitec 1: 13,41 kr 388In Stock	Mfr. Part No. 503ET-1 Mouser Part No 954-503ET-1	Semitec	NTC (Negative Temperature Coefficient) Thermistors 50kohm 3% Learn More about Semitec atet	Datasheet	388In Stock	13,41 kr 10,08 kr 8,06 kr 7,58 kr View 7,40 kr 6,21 kr 5,77 kr 5,31 kr	Min.: 1 Mult.: 1	ET	4055 K	50 kOhms	3.5 mW	3 %	PCB Mount	Radial	- 40 C	+ 100 C	1.5 mm	87 mm	1.5 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape1 30 AWG 75mm 103AT-4-80025 Semitec 1: 9,18 kr 8 285On Order	Mfr. Part No. 103AT-4-80025 Mouser Part No 954-103AT-4-80025	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape1 30 AWG 75mm Learn More about Semitec atet	Datasheet	8 285On Order On Order Ship Dates Mfr. No: 103AT-4-80025 Stock: 0 On Order: 1 285 Expected 2027-01-21 7 000 Expected 2027-02-04 Factory Lead Time: 17 Weeks	9,18 kr 8,69 kr 7,41 kr 6,97 kr View 6,79 kr 6,68 kr 5,70 kr 5,34 kr 4,90 kr	Min.: 1 Mult.: 1	AT	3435 K	10 kOhms		1 %	Off-Board	Wire Lead	- 50 C	+ 90 C	2.5 mm	75 mm	2.5 mm	8 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% 103AT-5-1P-FT Semitec 1: 6,08 kr 13 812On Order	Mfr. Part No. 103AT-5-1P-FT Mouser Part No 954-103AT-5-1P-FT	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Learn More about Semitec atet	Datasheet	13 812On Order On Order Ship Dates Mfr. No: 103AT-5-1P-FT Stock: 0 On Order: 3 812 Expected 2026-10-30 10 000 Expected 2026-11-13 Factory Lead Time: 21 Weeks	Cut Tape 6,08 kr 5,75 kr 5,37 kr 5,11 kr View Reel 3,93 kr 4,87 kr 4,39 kr 4,21 kr 3,93 kr	Min.: 1 Mult.: 1 : 2 500		3435 K	10 kOhms		1 %	PCB Mount	Radial	- 50 C	+ 110 C	2.5 mm	30 mm	3.5 mm	2.4 mm	Reel, Cut Tape
NTC (Negative Temperature Coefficient) Thermistors 100kohm 1% 104AT-2 Semitec 1: 10,62 kr 25 097On Order	Mfr. Part No. 104AT-2 Mouser Part No 954-104AT-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 100kohm 1% Learn More about Semitec atet	Datasheet	25 097On Order On Order Ship Dates Mfr. No: 104AT-2 Stock: 0 On Order: 7 897 Expected 2026-12-25 17 200 Expected 2027-01-08 Factory Lead Time: 19 Weeks	10,62 kr 8,20 kr 7,07 kr 6,82 kr View 5,80 kr 5,06 kr 4,44 kr 4,08 kr	Min.: 1 Mult.: 1	AT	4665 K	100 kOhms	10 mW	1 %	PCB Mount	Radial	- 50 C	+ 110 C		17 mm	3.7 mm	2.4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 4kohm 3% 402ET-2 Semitec 1: 9,51 kr 399Expected 2026-12-11	Mfr. Part No. 402ET-2 Mouser Part No 954-402ET-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 4kohm 3% Learn More about Semitec atet	Datasheet	399Expected 2026-12-11	9,51 kr 8,98 kr 7,68 kr 7,22 kr View 7,04 kr 6,90 kr 5,75 kr 5,53 kr 5,08 kr	Min.: 1 Mult.: 1	ET	3100 K	4 kOhms	3.5 mW	3 %	PCB Mount	Radial	- 40 C	+ 90 C	1.6 mm	45 mm	1.6 mm	4 mm	Bulk
NTC (Negative Temperature Coefficient) Thermistors 40kohm 3% 403ET-2 Semitec 1: 10,62 kr 197Expected 2027-01-08	Mfr. Part No. 403ET-2 Mouser Part No 954-403ET-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 40kohm 3% Learn More about Semitec atet	Datasheet	197Expected 2027-01-08	10,62 kr 8,18 kr 7,06 kr 6,80 kr View 5,79 kr 5,04 kr 4,44 kr 4,07 kr	Min.: 1 Mult.: 1	ET	3525 K	40 kOhms	3.5 mW	3 %	PCB Mount	Radial	- 40 C	+ 100 C	1.6 mm	45 mm	1.6 mm	4 mm	Bulk

AT & ET Thermistors

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