PTC Thermistors

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Resistance @ 25°C	Resistance Tolerance	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
KT100 SENSOR PTC 2KOHM 3% TO92 Infineon Technologies	107,000 Marketplace	1,181 : $0.25000 Bulk	-	Bulk	Active	2 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92
KT230 SENSOR PTC 1KOHM 3% SOT23-3 Infineon Technologies	0 In Stock 653,834 Marketplace	1,090 : $0.28000 Bulk	-	Tape & Reel (TR) Bulk	Obsolete	1 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KTY10-7 SENSOR PTC 2.03KOHM 3% TO92 Infineon Technologies	49,026 Marketplace	1,011 : $0.30000 Bulk	-	Bulk	Active	2.03 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92
KTY10-5 SENSOR PTC 1.97KOHM 1% TO92 Infineon Technologies	212,245 Marketplace	945 : $0.32000 Bulk	KT	Bulk	Active	1.97 kOhms	±1%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92
KT110 SENSOR PTC 1KOHM 3% TO92MINI Infineon Technologies	0 In Stock 95,980 Marketplace	945 : $0.32000 Bulk	-	Bulk Bulk	Obsolete	1 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92MINI
KTY11-5 SENSOR PTC 1.97KOHM 3% TO92MINI Infineon Technologies	0 In Stock 291,730 Marketplace	644 : $0.47000 Bulk	-	Bulk Bulk	Obsolete	1.97 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92MINI
KTY21-7 SENSOR PTC 1.015KOHM 3% TO92MINI Infineon Technologies	127,208 Marketplace	545 : $0.55000 Bulk	-	Bulk	Active	1.015 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92MINI
KTY21-5 SENSOR PTC 985OHM 3% TO92MINI Infineon Technologies	0 In Stock 81,869 Marketplace	417 : $0.72000 Bulk	-	Bulk Bulk	Obsolete	985 Ohms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92MINI
KT210 SENSOR PTC 1KOHM 3% TO92MINI Infineon Technologies	0 In Stock 73,505 Marketplace	1,000 : $0.69499 Bulk 417 : $0.72000 Bulk	-	Bulk Bulk	Obsolete	1 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92MINI
KTY136 SENSOR PTC 2KOHM 3% SOT23-3 Infineon Technologies	0 In Stock	3,000 : $0.24949 Tape & Reel (TR)	-	Tape & Reel (TR)	Discontinued at Digi-Key	2 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KTY135 SENSOR PTC 1.97KOHM 3% SOT23-3 Infineon Technologies	0 In Stock	3,000 : $0.25416 Tape & Reel (TR)	-	Tape & Reel (TR)	Obsolete	1.97 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KTY236 SENSOR PTC 1KOHM 3% SOT23-3 Infineon Technologies	0 In Stock	3,000 : $0.25416 Tape & Reel (TR)	-	Tape & Reel (TR)	Obsolete	1 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KTY216 SENSOR PTC 1KOHM 3% TO92MINI Infineon Technologies	0 In Stock	1,000 : $0.69820 Tube	-	Tube	Discontinued at Digi-Key	1 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92MINI
KT130 SENSOR PTC 1KOHM 3% SOT23-3 Infineon Technologies	0 In Stock	Obsolete	-	Tape & Reel (TR)	Obsolete	1 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KTY11-6 SENSOR PTC 2KOHM 3% TO92MINI Infineon Technologies	0 In Stock	Obsolete	-	Bulk	Obsolete	2 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92MINI
KTY11-7 SENSOR PTC 2.03KOHM 3% TO92MINI Infineon Technologies	0 In Stock	Obsolete	-	Bulk	Obsolete	2.03 kOhms	±3%	-50°C ~ 150°C	Through Hole	TO-226-2, TO-92-2 (TO-226AC)	TO-92MINI
KTY13-6 SENSOR PTC 2KOHM 3% SOT23-3 Infineon Technologies	0 In Stock	Obsolete	-	Tape & Reel (TR)	Obsolete	2 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KTY13-7 SENSOR PTC 2.03KOHM 3% SOT23-3 Infineon Technologies	0 In Stock	Obsolete	-	Tape & Reel (TR)	Obsolete	2.03 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KTY23-6 SENSOR PTC 1KOHM 3% SOT23-3 Infineon Technologies	0 In Stock	Obsolete	-	Tape & Reel (TR)	Obsolete	1 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KTY23-7 SENSOR PTC 1.015KOHM 3% SOT23-3 Infineon Technologies	0 In Stock	Obsolete	-	Tape & Reel (TR)	Obsolete	1.015 kOhms	±3%	-50°C ~ 150°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3

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Positive Temperature Coefficient (PTC) thermistor temperature sensors are devices that exhibit an increase in resistance in response to an increase in temperature. Thermistors produce an output signal that is relatively large and easy to measure compared to many other temperature sensor types, though their characteristics tend to be less stable and less suitable for precise temperature measurements. PTC thermistors in particular are often adapted for over-temperature detection applications, and often exhibit a distinctly nonlinear temperature-resistance relationship that makes them useful for detection of an imprecise "high" temperature condition, though poor for making accurate measurements.