Thermistor ICs

A Thermistor is used in circuits for temperature measurement and current-limiting control. The resistance change of a thermistor depends on the ambient temperature. There are two semiconductor types, based on the temperature coefficient. Negative Temperature Coefficient (NTC) Thermistor: Resistance decreases as temperature rises, Applications in low-temperature measurements of temperature sensors, and inrush current suppression. Positive Temperature Coefficient (PTC) Thermistor: Resistance increases as temperature rises, Applications in overcurrent protection.

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Description Price Series Temperature Coefficient Type Thermal Coefficient Thermal Time Constant Resistance @ 25 °C Tolerance Application Package/Case Accuracy Maximum Power Rating Length Depth Height Dimensions
RS Stock No. 819-9173
Mfr. Part No.NTCAIMME3C90373
BrandVishay
MYR7.50
Each
units
- - - - - - - - - - - - - -
RS Stock No. 167-8214
Mfr. Part No.B59870C0080A070
BrandEPCOS
MYR4.381
Each (In a Box of 1000)
units
- PTC - - 25 Ω ±25% Protection - - - - 5mm - 9 (Dia.) x 5mm
RS Stock No. 167-8263
Mfr. Part No.B59890C0120A070
BrandEPCOS
MYR2.538
Each (In a Box of 1500)
units
- PTC - - 150 Ω ±25% Protection - - - - 5mm - 4 (Dia.) x 5mm
RS Stock No. 785-5759
Mfr. Part No.PTFL04BD471Q2N34B0
BrandMurata
MYR3.77
Each (In a Bag of 5)
units
POSISTOR PRG PTC - - 100 Ω - Automotive, AV Equipment, Communication Equipment, Home Appliance, Information Equipment, Power Supply - - - 5 (Dia.)mm 4mm - 5 (Dia.) x 4mm
RS Stock No. 483-7991
Mfr. Part No.KTY81/210,112
BrandNXP
MYR7.276
Each (In a Pack of 5)
units
KTY PTC - 3 (Flowing Liquid) s, 5 (Still Liquid) s, 30 (Air) s 2.02 kΩ - Control, Measurement SOD70 - - 5.2mm 4.2mm 4.8mm 5.2 x 4.2 x 4.8mm
RS Stock No. 528-8508
Mfr. Part No.B57861S0302J040
BrandEPCOS
MYR6.12
Each
units
- NTC 4.4%/°C 15s 3 kΩ ±5% Measurement - ±1% 60mW - - 6.5mm 2.41 (Dia.) x 6.5mm
RS Stock No. 211-7958
Mfr. Part No.B57236S0100M000
BrandEPCOS
MYR3.75
Each
units
- NTC - 70s 10 Ω ±20% Protection - - 2100mW - 6mm 16mm 11.5 (Dia.) x 6 x 16mm
RS Stock No. 819-9186
Mfr. Part No.NTCLE300E3103SB
BrandVishay
MYR6.70
Each
units
- - - - - - - - - - - - - -
RS Stock No. 785-5731
Mfr. Part No.PTFL04BB222Q2N34B0
BrandMurata
MYR3.77
Each (In a Bag of 5)
units
POSISTOR PRG PTC - - 330 Ω - Automotive, AV Equipment, Communication Equipment, Home Appliance, Information Equipment, Power Supply - - - 5 (Dia.)mm 4mm - 5 (Dia.) x 4mm
RS Stock No. 191-2235
Mfr. Part No.B57164K0102J000
BrandEPCOS
MYR3.98
Each (In a Pack of 5)
units
- NTC 4.1%/°C 20s 1 kΩ ±5% Compensation, Measurement - ±3% 450mW - 5mm - 5.5 (Dia.) x 5mm
RS Stock No. 167-8269
Mfr. Part No.B57237S0229M000
BrandEPCOS
MYR2.794
Each (On a Reel of 1000)
units
- NTC - 90s 2.2 Ω ±20% Soft Start Motor, Switching Power Supply - - 3100mW - 7mm - 15 (Dia.) x 7mm
RS Stock No. 167-4210
Mfr. Part No.PTFL04BB222Q2N34B0
BrandMurata
MYR1.90
Each (In a Bag of 400)
units
POSISTOR PRG PTC - - 330 Ω - Automotive, AV Equipment, Communication Equipment, Home Appliance, Information Equipment, Power Supply - - - 5 (Dia.)mm 4mm - 5 (Dia.) x 4mm
RS Stock No. 167-8524
Mfr. Part No.B57164K0473J000
BrandEPCOS
MYR1.646
Each (In a Box of 2000)
units
- NTC 4.7%/°C 20s 47 kΩ ±5% Compensation, Measurement - ±3% 450mW - 5mm - 5.5 (Dia.) x 5mm
RS Stock No. 173-3425
Mfr. Part No.B57235S0509M000
BrandEPCOS
MYR1.696
Each (In a Box of 1000)
units
- NTC - 60s 5 Ω ±20% Switching Power Supply - - 1800mW - 6mm - 9.5 (Dia.) x 6mm
RS Stock No. 167-8292
Mfr. Part No.B57364S0259M000
BrandEPCOS
MYR6.485
Each (On a Reel of 1000)
units
- NTC - 100s 2.5 Ω ±20% Soft Start Motor, Switching Power Supply - - 5100mW - 7mm - 21 (Dia.) x 7mm
RS Stock No. 725-9066
Mfr. Part No.NCP21WF104J03RA
BrandMurata
MYR0.783
Each (In a Pack of 10)
units
NCP NTC - - 100 kΩ ±5% Compensation, Sensing 0805 (2012M) - 200mW 2mm 1.25mm 0.85mm 2 x 1.25 x 0.85mm
RS Stock No. 786-9443
Mfr. Part No.NCP15XV103J03RC
BrandMurata
MYR0.393
Each (In a Pack of 25)
units
NCP NTC - - 10 kΩ ±5% Temperature Measurement 0402 (1005M) - 100mW 1mm 0.5mm 0.5mm 1 x 0.5 x 0.5mm
RS Stock No. 706-2840
Mfr. Part No.B59940C0120A070
BrandEPCOS
MYR14.19
Each
units
- PTC - - 2.3 Ω ±25% Protection - - - - 3.5mm - 17.5 (Dia.) x 3.5mm
RS Stock No. 697-6764
Mfr. Part No.NB21K00103KBB
BrandAVX
MYR1.354
Each (In a Pack of 5)
units
NB21 NTC -4%/°C 4s 10 kΩ ±10% Control, Protection 0603 (1608M) ±3% - 1.6mm 0.8mm 0.8mm 1.6 x 0.8 x 0.8mm
RS Stock No. 167-6854
Mfr. Part No.NB21K00103KBB
BrandAVX
MYR0.558
Each (On a Reel of 4000)
units
NB21 NTC -4%/°C 4s 10 kΩ ±10% Control, Protection 0603 (1608M) ±3% - 1.6mm 0.8mm 0.8mm 1.6 x 0.8 x 0.8mm