1.7 W Non-linear Resistors 43

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Part	Manufacturer	Resistor Type	Mounting Type	Resistance	Rated Power Dissipation (P)	Maximum Operating Temperature	Tolerance	Rated Temperature	Thermistor Application	Terminal Placement	Shape (Package)	Packing Method	No. of Terminals	Package Style (Meter)	Rated AC Voltage (URac)	Terminal Shape	Sub-Category	Dimensions	Minimum Operating Temperature	Terminal Finish	Height (Package)	Manufacturer Series	Maximum Circuit RMS Voltage	Operating Voltage	Additional Features	Length (Package)	JESD-609 Code	Reference Standard	Width (Package)	Maximum Circuit DC Voltage
ASMD050F-2	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		60 V	ONE SURFACE									MINIMUM RESISTANCE IS 0.29 OHMS
MF-SM050-2-99	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		60 V	FLAT	Non-linear Resistors		-40 Cel	MATTE TIN OVER NICKEL	7.98 mm				0.35 TO 1.4 OHMS AT 23 DEG CEL	6.73 mm	e3		3.18 mm
RF0318-000	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	DUAL ENDED		TR	2	Chip		ONE SURFACE				MATTE TIN OVER NICKEL				30 V	MINIMUM RESISTANCE IS 0.12 OHMS		e3			30 V
SMD030F-2018-2	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT	2.3 ohm	1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR, EMBOSSED, 7 INCH	2			WRAPAROUND	Non-linear Resistors	5.44mm x 4.93mm x 1.78mm	-40 Cel	Matte Tin (Sn) - with Nickel (Ni) barrier	1.78 mm			60 V		5.44 mm	e3	CSA, TUV, UL	4.93 mm
MF-SM100-2-99	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT	.48 ohm	1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		30 V	FLAT	Non-linear Resistors	7.98mm x 5.44mm x 3mm	-40 Cel	Matte Tin (Sn) - with Nickel (Ni) barrier	3 mm			30 V	0.12 TO 0.48 OHMS AT 23 DEG CEL	7.98 mm	e3	CSA, TUV, UL	5.44 mm
SMD075F-2	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING		RECTANGULAR PACKAGE	TR	2		30 V		Non-linear Resistors					SMD			RESISTANCE RANGE(RMIN-R1MAX): 0.35-1
SMD030F-2	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT	4.8 ohm	1.7 W	85 Cel			TEMPERATURE SENSING		RECTANGULAR PACKAGE	TR	2		60 V		Non-linear Resistors	7.98mm x 5.44mm x 3.18mm	-40 Cel		3.18 mm			60 V	RESISTANCE RANGE(RMIN-R1MAX): 1.2-4.8	7.98 mm		CSA, TUV, UL	5.44 mm
MF-SM030-2-99	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		60 V	FLAT	Non-linear Resistors		-40 Cel	Matte Tin (Sn) - with Nickel (Ni) barrier					0.9 TO 4.8 OHMS AT 23 DEG CEL		e3
MF-SM100/33-2-99	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		33 V	FLAT			-40 Cel	Matte Tin (Sn) - with Nickel (Ni) barrier					0.12 TO 0.41 OHMS AT 23 DEG CEL		e3
MF-SM075-2-99	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT	1 ohm	1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		30 V	FLAT	Non-linear Resistors	7.98mm x 5.44mm x 3.18mm	-40 Cel	Matte Tin (Sn) - with Nickel (Ni) barrier	3.18 mm			30 V	0.23 TO 1 OHMS AT 23 DEG CEL	7.98 mm	e3	CSA, TUV, UL	5.44 mm
MF-SM075/60-2-99	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		60 V	FLAT	Non-linear Resistors		-40 Cel	Matte Tin (Sn) - with Nickel (Ni) barrier					0.23 TO 1 OHMS AT 23 DEG CEL		e3
RXEF135-2	TE Connectivity	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.3 ohm	1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	DISK PACKAGE	TR, 14.6 INCH	2		72 V	WIRE			-40 Cel						RESISTANCE RANGE(MIN-MAX): 0.12-0.19
RXEF135	TE Connectivity	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.3 ohm	1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	DISK PACKAGE	BULK	2		72 V	WIRE	Non-linear Resistors		-40 Cel	Tin (Sn)					RESISTANCE RANGE(MIN-MAX): 0.12-0.19		e3
SMD100F/33-2	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	DUAL ENDED	RECTANGULAR PACKAGE	TR, EMBOSSED, 7 INCH	2			FLAT	Non-linear Resistors		-40 Cel						0.12 OHMS MINIMUM AT 20 DEG CEL
SMD075F/60	TE Connectivity	PTC THERMISTOR	SURFACE MOUNT	1 ohm	1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE		2			FLAT	Non-linear Resistors	7.98mm x 5.44mm x 3.18mm	-40 Cel		3.18 mm	SMD075F/60		60 V	0.35-1 OHMS AT 20 DEG CEL	7.98 mm		UL, CSA	5.44 mm
SMD260F-2	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		6 V	ONE SURFACE	Non-linear Resistors			Matte Tin (Sn) - with Nickel (Ni) barrier		SMD			0.025 OHMS MINIMUM AT 20 DEG CEL		e3
SMD030F-2018	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W				OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE		2			WRAPAROUND	Non-linear Resistors			Matte Tin (Sn) - with Nickel (Ni) barrier							e3
PTGL09AR250H8B52B0	Murata Manufacturing	PTC THERMISTOR	THROUGH HOLE MOUNT	25 ohm	1.7 W	60 Cel	25 %		OVERCURRENT PROTECTION	RADIAL	DISK PACKAGE	BULK	2	Radial	265 V	WIRE			-10 Cel	Tin/Silver/Copper (Sn/Ag/Cu)	10 mm			265 V		10 mm	e1		6 mm
RF0316-000	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT	.35 ohm	1.7 W	85 Cel			OVERCURRENT PROTECTION	DUAL ENDED		TR	2	SMT		WRAPAROUND								30 V	RMIN-RMAX(RI-R1) OHMS: 0.35-1			TUV; UL
PTGL07AS1R8K2B51A0	Murata Manufacturing	PTC THERMISTOR	THROUGH HOLE MOUNT	1.8 ohm	1.7 W	85 Cel	10 %		OVERCURRENT PROTECTION	RADIAL		AMMO PACK	2	Radial		WIRE			-30 Cel		7.3 mm			30 V		7.3 mm			3.5 mm
PFSM050.2	Schurter Ag	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL	RECTANGULAR PACKAGE	TR, BLISTER	2		30 V	NO LEAD	Non-linear Resistors		-40 Cel			PFSM			0.35 OHMS AT 23 DEG CEL
PTGL07AS1R8K2B51B0	Murata Manufacturing	PTC THERMISTOR	THROUGH HOLE MOUNT	1.8 ohm	1.7 W	85 Cel	10 %		OVERCURRENT PROTECTION	RADIAL	DISK PACKAGE	BULK	2	Radial	30 V	WIRE			-30 Cel	Tin/Silver/Copper (Sn/Ag/Cu)	12.3 mm			30 V		7.3 mm	e1		3.5 mm
MF-SM050	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel		125 Cel	OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR	2	SMT	60 V	FLAT	Non-linear Resistors		-40 Cel	MATTE TIN OVER NICKEL	3.18 mm		60 V		0.35 OHMS MINIMUM AT 23 DEG CEL	7.98 mm	e3		5.44 mm
MF-SM100	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel		125 Cel	OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		30 V	FLAT	Non-linear Resistors		-40 Cel	Matte Tin (Sn) - with Nickel (Ni) barrier		MF-SM			0.12 OHMS MINIMUM AT 23 DEG CEL		e3
PFSM100.2	Schurter Ag	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			OVERLOAD PROTECTION	DUAL	RECTANGULAR PACKAGE	TR, BLISTER	2		15 V	NO LEAD	Non-linear Resistors		-40 Cel			PFSM			0.12 OHMS AT 23 DEG CEL
RXEF135-AP	TE Connectivity	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.12 ohm	1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	DISK PACKAGE	AMMO PACK	2		72 V	WIRE			-40 Cel			RXEF			RESISTANCE RANGE(MIN-MAX): 0.12-0.19
RXEF135K	TE Connectivity	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.3 ohm	1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	DISK PACKAGE	BULK	2		72 V	WIRE	Non-linear Resistors	13.58mm x 3mm x 19.8mm	-40 Cel		19.8 mm	RXEF		72 V	RESISTANCE RANGE(MIN-MAX): 0.12-0.19	13.58 mm	e3	CSA, TUV, UL	3 mm
RXEF135K-2	TE Connectivity	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	DISK PACKAGE	TR	2		72 V	WIRE	Non-linear Resistors	13.58mm x 3mm x 19.8mm	-40 Cel		19.8 mm	RXEF		72 V	RESISTANCE RANGE(MIN-MAX): 0.12-0.19	13.58 mm		CSA, TUV, UL	3 mm
RF0319-000	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel				DUAL ENDED		TR	2	SMT	33 V	WRAPAROUND							33 V	33 V	MINIMUM RESISTANCE IS 0.12 OHMS					33 V
SMDC300F/24-2	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	DUAL ENDED	RECTANGULAR PACKAGE	TR	2		24 V	ONE SURFACE						SMDC300F/24-2			MINIMUM RESISTANCE IS 0.015 OHMS
PTGL07AS150K6B51B0	Murata Manufacturing	PTC THERMISTOR	THROUGH HOLE MOUNT	15 ohm	1.7 W	85 Cel	10 %		OVERCURRENT PROTECTION	RADIAL	DISK PACKAGE	BULK	2	Radial	140 V	WIRE			-30 Cel	Tin/Silver/Copper (Sn/Ag/Cu)	7.3 mm			140 V		7.3 mm	e1		4.5 mm
RF0713-000	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	RECTANGULAR PACKAGE	TR	2		240 V	WIRE									RESISTANCE RANGE(MIN-MAX): 0.83-1.24
RF1050-000	Littelfuse	PTC THERMISTOR	THROUGH HOLE MOUNT		1.7 W	85 Cel			OVERLOAD PROTECTION	RADIAL	RECTANGULAR PACKAGE	TR	2		240 V	WIRE						LVR			MINIMUM RESISTANCE IS 0.77 OHMS
LR4-600F	Littelfuse	PTC THERMISTOR	SURFACE MOUNT	.007 ohm	1.7 W	85 Cel			TEMPERATURE SENSING	AXIAL	RECTANGULAR PACKAGE	BULK	2			FLAT			-40 Cel
LVR033K-1	Littelfuse	PTC THERMISTOR	THROUGH HOLE MOUNT		1.7 W				OVERLOAD PROTECTION	RADIAL	RECTANGULAR PACKAGE		2		240 V	WIRE				TIN		LVR			RESISTANCE VARIES FROM 0.77 TO 1.24		e3
SMD100F/33	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	DUAL ENDED	RECTANGULAR PACKAGE	TR, EMBOSSED, 7 INCH	2			FLAT			-40 Cel	Matte Tin (Sn) - with Nickel (Ni) barrier					0.12 OHMS MINIMUM AT 20 DEG CEL		e3
LVR033S-1	Littelfuse	PTC THERMISTOR	THROUGH HOLE MOUNT		1.7 W				OVERLOAD PROTECTION	RADIAL	RECTANGULAR PACKAGE		2		240 V	WIRE				TIN		LVR			RESISTANCE VARIES FROM 0.77 TO 1.24		e3
RF2697-000	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.3 ohm	1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	DISK PACKAGE	TR, 15 INCH	2		72 V	WIRE			-40 Cel						RESISTANCE RANGE(MIN-MAX): 0.12-0.19
LVR033S-AP	Littelfuse	PTC THERMISTOR	THROUGH HOLE MOUNT		1.7 W				OVERLOAD PROTECTION	RADIAL	RECTANGULAR PACKAGE	AMMO PACK	2		240 V	WIRE				TIN		LVR			RESISTANCE VARIES FROM 0.77 TO 1.24		e3
LVR033K-AP	Littelfuse	PTC THERMISTOR	THROUGH HOLE MOUNT		1.7 W				OVERLOAD PROTECTION	RADIAL	RECTANGULAR PACKAGE	AMMO PACK	2		240 V	WIRE				TIN		LVR			RESISTANCE VARIES FROM 0.77 TO 1.24		e3
RF2640-000	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.3 ohm	1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	DISK PACKAGE	BULK	2		72 V	WIRE			-40 Cel	MATTE TIN					RESISTANCE RANGE(MIN-MAX): 0.12-0.19		e3
SMD125F	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT		1.7 W	85 Cel			TEMPERATURE SENSING	DUAL ENDED	RECTANGULAR PACKAGE	TR, EMBOSSED, 7 INCH	2			FLAT	Non-linear Resistors		-40 Cel	MATTE TIN OVER NICKEL					0.070 OHMS MINIMUM AT 20 DEG CEL		e3
RF2699-000	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.12 ohm	1.7 W	85 Cel			TEMPERATURE SENSING	RADIAL	DISK PACKAGE	AMMO PACK	2		72 V	WIRE			-40 Cel						RESISTANCE RANGE(MIN-MAX): 0.12-0.19

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.