Key Topics

NTC Thermistors

NTC – negative temperature coefficient – thermistors are used as a type of resistor in electrical circuits. Negative temperature coefficient means that as the temperature of a circuit rises, the resistance level decreases. While this may appear as counterintuitive, NTC thermistors serve a specific purpose when circuits are first powered up, enabling them to work effectively. NTC thermistors are also sometimes called current protection devices or power thermistors.

What are NTC thermistors used for?

NTC thermistors are used as inrush current limiters, helping to protect electrical circuits from being destroyed by the vast electrical current that flows in the fractions of a second after a device is switched on.

How do NTC thermistors work?

NTC thermistors have high levels of resistance at room temperature. When electrical current is flowing, NTC thermistors heat up, which reduces their resistance and allows a safe level of current to flow.

What are the benefits of using NTC thermistors?

Unlike some other types of resistor, NTC thermistors limit the flow of current, but enable enough to current to flow so that there is no drop in power or in the performance of the device in question.

What’s the difference between NTC and PTC thermistors?

Whereas the resistance of NTC thermistors decreases as the temperature rises, with a PTC – positive temperature coefficient – thermistor, the opposite occurs, with resistance increasing alongside the temperature.

Top NTC Thermistors Products
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NTCLE213E3103GHB0
Vishay
NTC (Negative Temperature Coefficient) Thermistors 10Kohms 2% Beta value 3984K .5%
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NTCLE213E3103GLB0
Vishay
NTC (Negative Temperature Coefficient) Thermistors 10Kohms 2% Beta value 3435K 1%
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NTCLE213E3103HLB0
Vishay
NTC (Negative Temperature Coefficient) Thermistors 10Kohms 3% Beta value 3435K 1%
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NTCLE213E3123HMB0
Vishay
NTC (Negative Temperature Coefficient) Thermistors 12Kohms 3% Beta value 3740K 1%
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NTCLE213E3212HMB0
Vishay
NTC (Negative Temperature Coefficient) Thermistors 2.1Kohms 3% Beta value 3511K 1%
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NTCLE213E3212JMB0
Vishay
NTC (Negative Temperature Coefficient) Thermistors 2.1Kohms 5% Beta value 3511K 1%
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NTCLE213E3123GMB0
Vishay
NTC (Negative Temperature Coefficient) Thermistors 12Kohms 2% Beta value 3740K 1%
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NTCLE213E3212FMB0
Vishay
NTC (Negative Temperature Coefficient) Thermistors 2.1Kohms 1% Beta value 3511K 1%
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RAC02-05SE277W
RECOM POWER
RECOM Power ACDC Power Modules 2W 85-305Vin 05Vout 400mA
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RAC03-24SER277
RECOM POWER
RECOM Power ACDC Power Modules 3W 85-305Vin 24Vout 125mA Round Wire
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ERT-J1VG103HM
Panasonic
NTC (Negative Temperature Coefficient) Thermistors 0603 R25 100Kohms 3% B(25/50) 3380K+/-1%
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DC95G104VN
Amphenol
NTC (Negative Temperature Coefficient) Thermistors Epoxy 0.012"OD 100K Ohm +/-0.1C 0-70C
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NCP18XM331E03RB
Murata
NTC (Negative Temperature Coefficient) Thermistors 0603 330ohms 3% BConstant 3500-3549K
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NCP15XW223J0SRC
Murata
NTC (Negative Temperature Coefficient) Thermistors 0402 22Kohms 5% BConstant 3950-3999K
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NCP18XQ681E03RB
Murata
NTC (Negative Temperature Coefficient) Thermistors 0603 680ohms 3% BConstant 3650-3699K
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NXRT15XM202EA3A016
Murata
NTC (Negative Temperature Coefficient) Thermistors 2Kohms B(25/50)3500K 0.27mA 16mm Ammo
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EC95G104VN
Amphenol
NTC (Negative Temperature Coefficient) Thermistors Epoxy Coat 100K Ohm +/- 0.1C 0-70C
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ERT-J0EV104FM
Panasonic
NTC (Negative Temperature Coefficient) Thermistors 0402 R25 100Kohms 1% B(25/50) 4700K+/-1%
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B57371V2104H060
TDK
NTC (Negative Temperature Coefficient) Thermistors 0603 100K H60 B-4480 NTC Thermistor
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TK95G104V
Amphenol
NTC (Negative Temperature Coefficient) Thermistors Epoxy Coat 100K Ohm +/- 0.1C 0-70C
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DC95F103VN
Amphenol
NTC (Negative Temperature Coefficient) Thermistors 10KOhm +/-.1C Epoxy Interchangeable Chip
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DKA202B5
Amphenol
NTC (Negative Temperature Coefficient) Thermistors Glass Encapsulated 2K Ohm +/- 5% 25C
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ERT-J0EP473GM
Panasonic
NTC (Negative Temperature Coefficient) Thermistors 0402 R25 47Kohms 2% B(25/50) 4050K +/-1%
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NCP15XW332E03RC
Murata
NTC (Negative Temperature Coefficient) Thermistors 0402 3.3Kohms 3% BConstant 3950-3999K