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. 785-5753
Mfr. Part No.PTFL04BE222Q2N34B0
BrandMurata
MYR3.23
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. 467-624
Mfr. Part No.B57236S0250M000
BrandEPCOS
MYR3.71
Each
units
- NTC - 70s 25 Ω ±20% Protection - - 2100mW - 6mm 16mm 11.5 (Dia.) x 6 x 16mm
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. 516-7776
BrandRS PRO
MYR4.42
Each
units
- NTC - 56s 25 Ω ±20% Protection - - - - 5mm - 10 (Dia.) x 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. 697-4459
Mfr. Part No.ND03J00681KCC
BrandAVX
MYR1.316
Each (In a Pack of 5)
units
ND03 NTC -3.9%/°C 10s 680 Ω ±10% Compensation, Measurement, Sensing - ±3% - - 3mm - 3.5 (Dia.) x 3mm
RS Stock No. 198-933
BrandRS PRO
MYR9.756
Each (In a Pack of 5)
units
- NTC - 7s 20 kΩ ±10% Measurement DO-35 - - 4.2mm - - 2 (Dia.) x 4.2mm
RS Stock No. 785-6046
Mfr. Part No.PTGL12AR270M9C01B0
BrandMurata
MYR9.24
Each
units
POSISTOR PTGL PTC - - 27 Ω ±20% Automotive, AV Equipment, Communication Equipment, Home Appliance, Information Equipment, Power Supply - - 2300mW 14 (Dia.)mm 6.5mm - 14 (Dia.) x 6.5mm
RS Stock No. 496-2384
Mfr. Part No.B59901D0110A040
BrandEPCOS
MYR10.61
Each (In a Pack of 5)
units
- PTC - - 100 Ω - Sensing - - - 8.5mm 6.5mm 20mm 8.5 x 6.5 x 20mm
RS Stock No. 167-8276
Mfr. Part No.B57237S0150M000
BrandEPCOS
MYR2.794
Each (On a Reel of 1000)
units
- NTC - 90s 15 Ω ±20% Soft Start Motor, Switching Power Supply - - 3100mW - 7mm - 15 (Dia.) x 7mm
RS Stock No. 893-7180
Mfr. Part No.GA10K3MCD1
MYR32.41
Each
units
Micro-BetaChip NTC -4.39%/°C - 10 kΩ ±0.5% - - - - 155mm - - 0.5 (Dia.) x 155mm
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. 167-6853
Mfr. Part No.NB21J50103JBB
BrandAVX
MYR1.53
Each (On a Reel of 4000)
units
NB21 NTC -3.9%/°C 4s 10 kΩ ±5% Control, Protection 0603 (1608M) ±3% - 1.6mm 0.8mm 0.8mm 1.6 x 0.8 x 0.8mm
RS Stock No. 166-7655
Mfr. Part No.NI24NA0103F--
BrandAVX
MYR6.563
Each (In a Bag of 1000)
units
NI24 NTC -4.6%/°C 8s 10 kΩ ±1% Measurement - ±3% 160mW 2.4mm - - -
RS Stock No. 167-0142
Mfr. Part No.B57213P0309M301
BrandEPCOS
MYR2.444
Each (In a Box of 1000)
units
- NTC - 80s 3 Ω ±20% Communication Equipment - - 3800mW - 7mm 22mm 14.5 (Dia.) x 7 x 22mm
RS Stock No. 171-1815
BrandRS PRO
MYR3.981
Each (On a Reel of 100)
units
- NTC - 91s 8 Ω ±20% Protection - - - - 6mm - 13 (Dia.) x 6mm
RS Stock No. 121-8218
Mfr. Part No.B57127P0709M301
BrandEPCOS
MYR11.404
Each (In a Bag of 5)
units
P27 NTC - 200s 7 Ω - Inrush Current Limiting, Soft Start Motor, Switching Power Supply - - 10W 31 (Dia.)mm 7mm - 31 (Dia.) x 7mm
RS Stock No. 293-8654
Mfr. Part No.HEL707-U-0-12
BrandHoneywell
MYR229.02
Each
units
- PTC - 1s - ±0.2% Measurement - ±0.8% - 6.35mm - - 2.18 (Dia.) x 6.355mm
RS Stock No. 216-1393
Mfr. Part No.B57237S0150M000
BrandEPCOS
MYR4.86
Each
units
- NTC - 90s 15 Ω ±20% Soft Start Motor, Switching Power Supply - - 3100mW - 7mm - 15 (Dia.) x 7mm
RS Stock No. 697-4556
Mfr. Part No.NI24NA0103F--
BrandAVX
MYR13.07
Each
units
NI24 NTC -4.6%/°C 8s 10 kΩ ±1% Measurement - ±3% 160mW 2.4mm - - -