PTC Thermistors

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Resistance @ 25°C	Resistance Tolerance	Operating Temperature	Power - Max	Mounting Type	Package / Case	Supplier Device Package
202PS1J SENSOR PTC 2KOHM 5% DO35 Littelfuse Inc.	120 In Stock	1 : $3.94000 Bulk	PTC	Bulk	Active	2 kOhms	±5%	-50°C ~ 150°C	-	Through Hole	DO-204AH, DO-35, Axial	DO-35
TFPT0805L2201FV SENSOR PTC 2.2KOHM 1% 0805 Vishay Dale	4,995 In Stock	1 : $1.27000 Cut Tape (CT) 1,000 : $0.62486 Tape & Reel (TR)	TFPT	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	2.2 kOhms	±1%	-55°C ~ 125°C	100 mW	Surface Mount	0805 (2012 Metric)	0805
ED35S20F202 SENSOR PTC 2KOHM 1% DO35 EI Sensor Technologies	956 In Stock	1 : $3.33000 Bulk	-	Bulk	Active	2 kOhms	±1%	-55°C ~ 150°C	-	Through Hole	DO-204AH, DO-35, Axial	DO-35
KTY82/210,215 SENSOR PTC 2KOHM SOT23 NXP USA Inc.	0 In Stock	Obsolete	KTY82	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Obsolete	2 kOhms	-	-55°C ~ 150°C	-	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23 (TO-236AB)

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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.