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: 13,73 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	13,73 kr 10,32 kr 8,25 kr 7,76 kr View 7,57 kr 6,36 kr 5,91 kr 5,43 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 232kohm 3% 234ET-2 Semitec 1: 8,49 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	8,49 kr 6,45 kr 5,56 kr 5,37 kr View 4,57 kr 4,56 kr 3,96 kr 3,68 kr 3,35 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 2% 103ETB Semitec 1: 7,92 kr 400In Stock	Mfr. Part No. 103ETB Mouser Part No 954-103ETB	Semitec	NTC (Negative Temperature Coefficient) Thermistors 10kohm 2% Learn More about Semitec atet	Datasheet	400In Stock	7,92 kr 7,50 kr 7,03 kr 6,71 kr View 6,39 kr 6,38 kr 5,77 kr 5,55 kr 5,10 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 20kohm 1% 203AT-2 Semitec 1: 5,77 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	5,77 kr 5,13 kr 5,12 kr 4,44 kr View 4,10 kr 3,72 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: 10,98 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	10,98 kr 8,38 kr 7,23 kr 6,98 kr View 5,94 kr 5,93 kr 5,16 kr 4,55 kr 4,16 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: 8,49 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	8,49 kr 6,45 kr 5,56 kr 5,37 kr View 4,57 kr 4,56 kr 3,96 kr 3,68 kr 3,35 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 10kohm 1% 103AT-2 Semitec 1: 6,56 kr 129 437In 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	129 437In Stock 128 200Expected 2026-12-11	6,56 kr 6,17 kr 5,76 kr 5,49 kr View 5,23 kr 4,70 kr 4,52 kr 4,14 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: 25,99 kr 3 678In 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	3 678In Stock 8 000Expected 2027-01-08	25,99 kr 24,86 kr 23,40 kr 22,50 kr View 21,49 kr 19,35 kr 18,68 kr 18,23 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: 6,19 kr 7 393In 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 393In Stock	6,19 kr 5,93 kr 5,54 kr 5,27 kr View 5,02 kr 4,53 kr 4,35 kr 3,98 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: 7,92 kr 29 453In 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	29 453In Stock	7,92 kr 7,48 kr 7,00 kr 6,67 kr View 6,36 kr 5,75 kr 5,52 kr 5,19 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: 8,61 kr 7 398In 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 398In Stock 27 000On Order On Order Ship Dates Mfr. No: 103AT-4-70316 Stock: 7 398 Can Dispatch Immediately On Order: 8 200 Expected 2026-11-13 18 800 Expected 2026-12-11 Factory Lead Time: 17 Weeks	8,61 kr 8,15 kr 7,63 kr 7,27 kr View 6,94 kr 6,27 kr 6,03 kr 5,55 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: 8,15 kr 25 818In Stock 32 800Expected 2027-02-17	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	25 818In Stock 32 800Expected 2027-02-17	8,15 kr 7,66 kr 7,18 kr 6,83 kr View 6,51 kr 6,50 kr 5,81 kr 5,55 kr 5,09 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: 7,70 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	7,70 kr 7,29 kr 6,82 kr 6,49 kr View 6,20 kr 5,82 kr 5,59 kr 5,37 kr 4,93 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: 7,92 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 2027-01-25 200 Expected 2027-02-15 Factory Lead Time: 18 Weeks	7,92 kr 7,47 kr 7,00 kr 6,66 kr View 6,36 kr 5,74 kr 5,51 kr 5,06 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: 10,18 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	10,18 kr 9,60 kr 8,25 kr 7,76 kr View 7,57 kr 7,38 kr 6,14 kr 5,91 kr 5,43 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: 10,87 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	10,87 kr 8,37 kr 7,22 kr 6,96 kr View 5,93 kr 5,16 kr 4,55 kr 4,16 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 2kohm 1% 202AT-2 Semitec 1: 10,87 kr 1 450In 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 450In Stock	10,87 kr 8,31 kr 7,17 kr 6,92 kr View 5,90 kr 5,13 kr 4,65 kr 4,25 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: 10,18 kr 578In 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	578In Stock	10,18 kr 8,62 kr 7,63 kr 7,27 kr View 6,94 kr 6,28 kr 5,22 kr 4,79 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: 6,56 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	6,56 kr 6,17 kr 5,76 kr 5,49 kr View 5,23 kr 4,70 kr 4,52 kr 4,14 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: 13,73 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	13,73 kr 10,32 kr 8,25 kr 7,76 kr View 7,57 kr 6,36 kr 5,91 kr 5,43 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: 9,39 kr 18 884On 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	18 884On Order On Order Ship Dates Mfr. No: 103AT-4-80025 Stock: 0 On Order: 4 684 Expected 2027-02-04 3 600 Expected 2027-02-15 10 600 Expected 2027-03-05 Factory Lead Time: 20 Weeks	9,39 kr 8,90 kr 7,58 kr 7,13 kr View 6,95 kr 6,84 kr 5,84 kr 5,47 kr 5,02 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: 6,22 kr 13 798On 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 798On Order On Order Ship Dates Mfr. No: 103AT-5-1P-FT Stock: 0 On Order: 8 798 Expected 2026-11-12 5 000 Expected 2026-11-13 Factory Lead Time: 22 Weeks	Cut Tape 6,22 kr 5,88 kr 5,50 kr 5,23 kr View Reel 4,03 kr 4,98 kr 4,49 kr 4,31 kr 4,03 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: 10,87 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	10,87 kr 8,39 kr 7,23 kr 6,99 kr View 5,94 kr 5,18 kr 4,55 kr 4,17 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 30kohm 3% 303ET-2 Semitec 1: 9,28 kr 100Expected 2027-02-02	Mfr. Part No. 303ET-2 Mouser Part No 954-303ET-2	Semitec	NTC (Negative Temperature Coefficient) Thermistors 30kohm 3% Learn More about Semitec atet	Datasheet	100Expected 2027-02-02	9,28 kr 7,08 kr 6,09 kr 5,87 kr View 5,01 kr 5,00 kr 4,34 kr 3,99 kr 3,61 kr	Min.: 1 Mult.: 1	ET		30 kOhms		3 %	PCB Mount	Radial	- 40 C	+ 100 C	1.6 mm	4 mm			Bulk
NTC (Negative Temperature Coefficient) Thermistors 4kohm 3% 402ET-2 Semitec 1: 9,73 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	9,73 kr 9,19 kr 7,86 kr 7,39 kr View 7,21 kr 7,07 kr 5,88 kr 5,66 kr 5,20 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

AT & ET Thermistors

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AT & ET Thermistors

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