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. 167-8417
Mfr. Part No.B59990C0120A070
BrandEPCOS
HK$4.066
Each (In a Box of 1500)
units
- PTC - - 55 Ω ±25% Protection - - - - 3.5mm - 4 (Dia.) x 3.5mm
RS Stock No. 516-7811
BrandRS PRO
HK$8.74
Each
units
- NTC - 91s 8 Ω ±20% Protection - - - - 6mm - 13 (Dia.) x 6mm
RS Stock No. 769-1919
Mfr. Part No.B57550G1103F000
BrandEPCOS
HK$26.976
Each (In a Pack of 5)
units
- NTC - 7s 10 kΩ ±1% Measurement - - 32mW - - 2.2mm 1.3 (Dia.) x 2.2mm
RS Stock No. 212-0386
Mfr. Part No.B59990C0120A070
BrandEPCOS
HK$9.57
Each
units
- PTC - - 55 Ω ±25% Protection - - - - 3.5mm - 4 (Dia.) x 3.5mm
RS Stock No. 171-1817
BrandRS PRO
HK$5.614
Each (On a Reel of 100)
units
- NTC - 93s 5 Ω ±20% Protection - - - - 6mm - 13 (Dia.) x 6mm
RS Stock No. 167-0334
Mfr. Part No.B57371V2103J060
BrandEPCOS
HK$1.093
Each (On a Reel of 4000)
units
B573**V2 NTC - 4s 10 kΩ ±5% Temperature Measurement and Compensation 0603 (1608M) <2% 180mW 1.6mm 0.8mm 0.9mm 1.6 x 0.8 x 0.9mm
RS Stock No. 819-9149
Mfr. Part No.NTCLE203E3472FB0
BrandVishay
HK$15.24
Each
units
- - - - - - - - - - - - - -
RS Stock No. 170-8631
Mfr. Part No.NTCLE100E3472JB0
BrandVishay
HK$3.214
Each (In a Bag of 500)
units
- NTC - 15s 4.7 kΩ ±5% Sensing & Control, Temperature Compensation in Industrial & Consumer Electronics, Temperature Measurement - - 500mW 3.3mm 3mm 9mm 3.3 x 3 x 9mm
RS Stock No. 211-8024
Mfr. Part No.B57364S0259M000
BrandEPCOS
HK$19.08
Each
units
- NTC - 100s 2.5 Ω ±20% Soft Start Motor, Switching Power Supply - - 5100mW - 7mm - 21 (Dia.) x 7mm
RS Stock No. 167-6847
Mfr. Part No.NB12K00103KBB
BrandAVX
HK$0.872
Each (On a Reel of 4000)
units
NB12 NTC -4%/°C 5s 10 kΩ ±10% Protection 0805 (2012M) ±3% - 2mm 1.25mm 1.3mm 2 x 1.25 x 1.3mm
RS Stock No. 496-2722
Mfr. Part No.B59707A0120A062
BrandEPCOS
HK$6.89
Each (In a Pack of 5)
units
- PTC - - 125 Ω ±25% Protection 1210 (3225M) - - 3.2mm 2.5mm 1.6mm 3.2 x 2.5 x 1.6mm
RS Stock No. 754-6645
Mfr. Part No.NTCLE100E3103JB0
BrandVishay
HK$4.96
Each (In a Pack of 5)
units
- NTC - 15s 10 kΩ ±5% Sensing & Control, Temperature Compensation in Industrial & Consumer Electronics, Temperature Measurement - - 500mW 3.3mm 3mm 9mm 3.3 x 3 x 9mm
RS Stock No. 165-9830
Mfr. Part No.KTY82/110,215
BrandNXP
HK$4.133
Each (On a Reel of 3000)
units
KTY82 PTC - 0.5 (Flowing Liquid) s, 1 (Still Liquid) s, 7 (Air) s 1.01 kΩ - Control, Measurement SOT23 - - 3mm 1.4mm 0.95mm 3 x 1.4 x 0.95mm
RS Stock No. 167-8292
Mfr. Part No.B57364S0259M000
BrandEPCOS
HK$9.342
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. 177-5954
Mfr. Part No.HIH-4602-C
BrandHoneywell
HK$370.443
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 813-3543
Mfr. Part No.B57351V5103J060
BrandEPCOS
HK$2.337
Each (In a Pack of 25)
units
- - - - - - - - - - - - - -
RS Stock No. 170-8668
Mfr. Part No.NTCLE300E3103SB
BrandVishay
HK$8.642
Each (In a Box of 1000)
units
- - - - - - - - - - - - - -
RS Stock No. 191-1917
Mfr. Part No.B59890C0120A070
BrandEPCOS
HK$11.48
Each
units
- PTC - - 150 Ω ±25% Protection - - - - 5mm - 4 (Dia.) x 5mm
RS Stock No. 170-8660
Mfr. Part No.NTCLE203E3472FB0
BrandVishay
HK$7.83
Each (In a Box of 500)
units
- - - - - - - - - - - - - -
RS Stock No. 162-0180
Mfr. Part No.B59840C0120A070
BrandEPCOS
HK$8.37
Each (In a Box of 500)
units
- PTC - - 6 Ω ±25% Protection - - - - 5mm - 17.5 (Dia.) x 5mm
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