.25 ohm Non-linear Resistors 36

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Part	Manufacturer	Resistor Type	Mounting Type	Resistance	Rated Power Dissipation (P)	Maximum Operating Temperature	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
MF-PSMF035X-2	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR, 7 INCH	2	SMT		WRAPAROUND	Non-linear Resistors		-40 Cel	Gold (Au) - with Nickel (Ni) barrier	.85 mm				RMIN AT 23 DEG CEL	2.3 mm	e4	CUL; TUV; UL	1.5 mm	6 V
MICROASMD050F-2	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	DUAL ENDED		TR, EMBOSSED, 7 INCH	2	SMT		WRAPAROUND			-40 Cel		.62 mm			13.2 V	RMIN AT 25 DEG CEL	3.43 mm		AEC-Q200; TS 16949	2.8 mm	13.2 V
1210L050YR	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR, 7 INCH	2	SMT		WRAPAROUND	Non-linear Resistors		-40 Cel	MATTE TIN	.85 mm			13.2 V		3.43 mm	e3	CUL, TUV, UL	2.8 mm
RF1353-000	TE Connectivity	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm	.8 W	85 Cel		OVERCURRENT PROTECTION	DUAL ENDED		TR	2	SMT		WRAPAROUND				MATTE TIN OVER NICKEL				13.2 V	RESISTANCE RANGE(MIN-MAX): 0.25-0.9		e3	TUV; UL
RXEF075-AP	TE Connectivity	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm	.92 W	85 Cel		TEMPERATURE SENSING	RADIAL	DISK PACKAGE	AMMO PACK	2		72 V	WIRE	Non-linear Resistors		-40 Cel			RXEF			RESISTANCE RANGE(MIN-MAX): 0.25-0.4		e3
SMD0805B035TF	Yageo	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	DUAL ENDED		TR, 7 INCH	2	SMT		WRAPAROUND			-40 Cel		1 mm			6 V	RMIN AT 23 DEG CEL	2.2 mm		CUL; TUV; UL	1.5 mm
0805L035YR	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR, 7 INCH	2	SMT		WRAPAROUND	Non-linear Resistors	2.2mm x 1.5mm x 0.75mm	-40 Cel	MATTE TIN	.75 mm			6 V		2.2 mm	e3	CUL; TUV; UL	1.5 mm	6 V
0805L035YRHF	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm	.5 W	85 Cel		OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR, 7 INCH	2	SMT		WRAPAROUND	Non-linear Resistors		-40 Cel	MATTE TIN	.75 mm			6 V	RESISTANCE RANGE(RMIN-R1MAX)OHM: 0.25-1.2	2.2 mm	e3	CUL; TUV; UL	1.5 mm
MF-PSHT035KX-2	Bourns	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		125 Cel			DUAL ENDED		TR, 7 INCH	2	SMT		WRAPAROUND			-40 Cel	Gold (Au) - with Nickel (Ni) barrier	1.2 mm			16 V	RMIN AT 23 DEG CEL	2.3 mm	e4	AEC-Q200; CUL; TUV	1.5 mm
60R075XU	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL	DISK PACKAGE	BULK	2	Radial		WIRE	Non-linear Resistors		-40 Cel	MATTE TIN	15 mm			60 V		10.2 mm	e3	CUL; TUV; UL	3.1 mm
60R075XPR	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL	DISK PACKAGE	AMMO PACK	2	Radial		WIRE	Non-linear Resistors		-40 Cel	MATTE TIN	15 mm			60 V		10.2 mm	e3	CUL; TUV; UL	3.1 mm
0805L035	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel		OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE		2	SMT		WRAPAROUND			-40 Cel	Matte Tin (Sn)	.75 mm			6 V	RESISTANCE RANGE(RMIN-R1MAX)OHM: 0.25-1.2	2.2 mm	e3	CUL; TUV; UL	1.5 mm
0805L035WR	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel		OVERLOAD PROTECTION	DUAL ENDED		TR, 7 INCH	2	SMT		WRAPAROUND			-40 Cel	MATTE TIN	.75 mm			6 V	RESISTANCE RANGE(RMIN-R1MAX)OHM: 0.25-1.2	2.2 mm	e3	CUL; TUV; UL	1.5 mm
PICOASMDCH050F-2	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		125 Cel		OVERCURRENT PROTECTION	DUAL ENDED		TR, EMBOSSED, 7 INCH	2	SMT		WRAPAROUND			-40 Cel		1.2 mm			16 V	RMIN AT 25 DEG CEL	2.2 mm		AEC-Q200	1.5 mm
RF5025-000	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		125 Cel		OVERCURRENT PROTECTION	DUAL ENDED			2	SMT		WRAPAROUND			-40 Cel		1.2 mm			16 V	RMIN AT 25 DEG CEL	2.2 mm		AEC-Q200	1.5 mm
RF2660-000	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm	.92 W	85 Cel		TEMPERATURE SENSING	RADIAL	DISK PACKAGE	AMMO PACK	2		72 V	WIRE			-40 Cel						RESISTANCE RANGE(MIN-MAX): 0.25-0.4
MICROASMD050F	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	DUAL ENDED		BULK	2	SMT		WRAPAROUND			-40 Cel		.62 mm			13.2 V	RESISTANCE RANGE(MIN-MAX): 0.25-0.9	3.43 mm		AEC-Q200, TS 16949	2.8 mm
72R075XPR	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL	DISK PACKAGE	AMMO PACK	2	Radial		WIRE	Non-linear Resistors		-40 Cel	TIN	10.2 mm			72 V	Rmax:0.6 OHMS AT 20 DEG CEL	10.2 mm	e3	CUL, TUV, UL	3.1 mm
1206L035	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	.25 ohm		85 Cel	85 Cel	OVERLOAD PROTECTION	DUAL ENDED	RECTANGULAR PACKAGE	TR, 4 INCH	2			WRAPAROUND			-40 Cel	Matte Tin (Sn)							e3
RKEF065K	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL		BULK	2	Radial		WIRE			-40 Cel		12.2 mm			60 V	Rmax:0.45 OHMS AT 20 DEG CEL	7.11 mm		CSA; TUV; UL	3.56 mm	60 V
RKEF065U-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel	25 Cel	OVERCURRENT PROTECTION	RADIAL			2	Radial		WIRE			-40 Cel		12.2 mm			60 V	Rmax:0.45 OHMS AT 20 DEG CEL	7.11 mm		CSA; TUV; UL	3.56 mm	60 V
RKEF065S	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel	25 Cel	OVERCURRENT PROTECTION	RADIAL		Bulk	2	Radial		WIRE			-40 Cel		12.2 mm			60 V	Rmax:0.45 OHMS AT 20 DEG CEL	7.11 mm		CSA; TUV; UL	3.56 mm	60 V
RXEF075U-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL			2	Radial		WIRE			-40 Cel		15.2 mm		72 V	72 V	Rmax:0.4 OHMS AT 20 DEG CEL	10.2 mm		CQC; CSA; TUV; UL	3 mm	72 V
RKEF065B	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel	25 Cel	OVERCURRENT PROTECTION	RADIAL		Bulk	2	Radial		WIRE			-40 Cel		12.2 mm			60 V	Rmax:0.45 OHMS AT 20 DEG CEL	7.11 mm		CSA; TUV; UL	3.56 mm	60 V
RXEF075U-AP	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL		AMMO PACK	2	Radial		WIRE			-40 Cel		15.2 mm		72 V	72 V	Rmax:0.4 OHMS AT 20 DEG CEL	10.2 mm		CQC; CSA; TUV; UL	3 mm	72 V
RKEF065B-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel	25 Cel	OVERCURRENT PROTECTION	RADIAL			2	Radial		WIRE			-40 Cel		12.2 mm			60 V	Rmax:0.45 OHMS AT 20 DEG CEL	7.11 mm		CSA; TUV; UL	3.56 mm	60 V
RKEF065S-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel	25 Cel	OVERCURRENT PROTECTION	RADIAL			2	Radial		WIRE			-40 Cel		12.2 mm			60 V	Rmax:0.45 OHMS AT 20 DEG CEL	7.11 mm		CSA; TUV; UL	3.56 mm	60 V
RXEF075K-AP	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL		AMMO PACK	2	Radial		WIRE			-40 Cel		15.2 mm		72 V	72 V	Rmax:0.4 OHMS AT 20 DEG CEL	10.2 mm		CQC; CSA; TUV; UL	3 mm	72 V
RKEF065U	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel	25 Cel	OVERCURRENT PROTECTION	RADIAL		Bulk	2	Radial		WIRE			-40 Cel		12.2 mm			60 V	Rmax:0.45 OHMS AT 20 DEG CEL	7.11 mm		CSA; TUV; UL	3.56 mm	60 V
RKEF065K-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel	25 Cel	OVERCURRENT PROTECTION	RADIAL			2	Radial		WIRE			-40 Cel		12.2 mm			60 V	Rmax:0.45 OHMS AT 20 DEG CEL	7.11 mm		CSA; TUV; UL	3.56 mm	60 V
RXEF075U-2	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL		TR, 15 INCH	2	Radial		WIRE			-40 Cel		15.2 mm		72 V	72 V	Rmax:0.4 OHMS AT 20 DEG CEL	10.2 mm		CQC; CSA; TUV; UL	3 mm	72 V
RXEF075K	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL		BULK	2	Radial		WIRE			-40 Cel		15.2 mm		72 V	72 V	Rmax:0.4 OHMS AT 20 DEG CEL	10.2 mm		CQC; CSA; TUV; UL	3 mm	72 V
RXEF075K-2	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL		TR, 14.5 INCH	2	Radial		WIRE			-40 Cel		15.2 mm		72 V	72 V	Rmax:0.4 OHMS AT 20 DEG CEL	10.2 mm		CQC; CSA; TUV; UL	3 mm	72 V
RXEF075U	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL		Bulk	2	Radial		WIRE			-40 Cel		15.2 mm		72 V	72 V	Rmax:0.4 OHMS AT 20 DEG CEL	10.2 mm		CQC; CSA; TUV; UL	3 mm	72 V
RXEF075K-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel		OVERCURRENT PROTECTION	RADIAL			2	Radial		WIRE			-40 Cel		15.2 mm		72 V	72 V	Rmax:0.4 OHMS AT 20 DEG CEL	10.2 mm		CQC; CSA; TUV; UL	3 mm	72 V
60R075	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.25 ohm		85 Cel	85 Cel	TEMPERATURE SENSING	RADIAL	DISK PACKAGE	TR	2			WIRE	Non-linear Resistors		-40 Cel	Matte Tin (Sn)		60R			0.6OHMS@20DEGREE		e3

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.