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Part	Manufacturer	Resistor Type	Mounting Type	Resistance	Maximum Operating Temperature	Tolerance	Rated Temperature	Thermistor Application	Terminal Placement	Shape (Package)	Packing Method	No. of Terminals	Package Style (Meter)	Terminal Shape	Thermal Sensitivity Index	Minimum Operating Temperature	Height (Package)	Additional Features	Length (Package)	Diameter (Package)	Width (Package)
503JG1F	Littelfuse	NTC THERMISTOR	THROUGH HOLE MOUNT	50000 ohm	300 Cel	1 %		TEMPERATURE SENSING	AXIAL			2	Axial	WIRE	3892 K	-55 Cel			4.064 mm	1.905 mm
MM203J1F	Littelfuse	NTC THERMISTOR	SURFACE MOUNT	20000 ohm	220 Cel	1 %		TEMPERATURE SENSING	DUAL ENDED			2	SMT	WRAPAROUND	3892 K	-55 Cel			1.905 mm	1.3462 mm
KR103G9F	Littelfuse	NTC THERMISTOR	SURFACE MOUNT	10000 ohm	125 Cel	1 %		TEMPERATURE SENSING	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		WRAPAROUND	3800 K	-40 Cel
SM104J1F-TR	Littelfuse	NTC THERMISTOR	SURFACE MOUNT	100000 ohm	220 Cel	1 %		TEMPERATURE SENSING	DUAL ENDED		TR	2	SMT	WRAPAROUND	3892 K	-55 Cel		HERMETICALLY SEALED	3.429 mm	1.524 mm
SM103J1F-TR	Littelfuse	NTC THERMISTOR	SURFACE MOUNT	10000 ohm	220 Cel	1 %		TEMPERATURE SENSING	DUAL ENDED		TR	2	SMT	WRAPAROUND	3892 K	-55 Cel		HERMETICALLY SEALED	3.429 mm	1.524 mm
USP12838	Littelfuse	NTC THERMISTOR	CHASSIS MOUNT	10000 ohm	80 Cel	1 %	25 Cel	TEMPERATURE SENSING	RADIAL			2	Chassis Mount	FLEXIBLE WIRE	3892 K				8.636 mm	2.2606 mm
103JF1F	Littelfuse	NTC THERMISTOR	THROUGH HOLE MOUNT	10000 ohm	300 Cel	1 %		TEMPERATURE SENSING	AXIAL			2	Axial	WIRE	3892 K	-55 Cel			2.79 mm	1.65 mm
USP18967	Littelfuse	NTC THERMISTOR	CHASSIS MOUNT	10000 ohm	105 Cel	1 %	25 Cel	TEMPERATURE SENSING	RADIAL			2	Chassis Mount	FLEXIBLE WIRE	3977 K	-55 Cel	19.9898 mm		5.9182 mm		4.1656 mm
USP10973	Littelfuse	NTC THERMISTOR	CHASSIS MOUNT	10000 ohm	105 Cel	1 %	25 Cel	TEMPERATURE SENSING	RADIAL			2	Chassis Mount	FLEXIBLE WIRE	3892 K	-55 Cel			19.9898 mm	4.1656 mm
USP12840	Littelfuse	NTC THERMISTOR	CHASSIS MOUNT	10000 ohm	125 Cel	1 %		TEMPERATURE SENSING	RADIAL			2	Chassis Mount	FLEXIBLE WIRE	3892 K	-55 Cel	3.05 mm			7.9 mm

Non-linear Resistors

Non-linear resistors, also known as varistors or voltage-dependent resistors, are electronic components that exhibit a nonlinear resistance characteristic with respect to the applied voltage. They are primarily used for voltage clamping, surge protection, and transient suppression in electronic circuits.

The resistance of a varistor decreases with an increase in voltage, allowing it to provide a low resistance path for transient currents that exceed a specified threshold. When the voltage level drops below the threshold, the resistance increases, returning the varistor to its high impedance state. This property makes them useful for protecting sensitive electronic components from voltage surges and spikes.

Varistors are available in two types: metal oxide varistors (MOVs) and silicon carbide varistors (SiCVs). MOVs are the most common type, and they can handle a wider range of voltages than SiCVs. SiCVs, on the other hand, can handle higher temperatures and are more suitable for high power applications.

Non-linear resistors are widely used in power supplies, surge protectors, electronic ballasts, motor control circuits, and telecommunication systems. They are available in various package types, including through-hole, surface mount, and radial leaded packages.