2 W Non-linear Resistors 149

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Part	Manufacturer	Resistor Type	Mounting Type	Rated Power Dissipation (P)	Maximum Operating Temperature	Rated Temperature	Thermistor Application	Terminal Placement	Technology	Shape (Package)	Maximum Energy Absorbing Capacity	Packing Method	No. of Terminals	Package Style (Meter)	Rated AC Voltage (URac)	Terminal Shape	Sub-Category	Minimum Operating Temperature	Terminal Finish	Height (Package)	Manufacturer Series	Maximum Circuit RMS Voltage	Operating Voltage	Additional Features	Length (Package)	JESD-609 Code	Width (Package)	Maximum Circuit DC Voltage
C37664-000	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	2 W	85 Cel		TEMPERATURE SENSING	RADIAL		RECTANGULAR PACKAGE		BULK	2		240 V	WIRE								RESISTANCE RANGE(MIN-MAX): 0.6-0.97
A41362-000	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	2 W	85 Cel		TEMPERATURE SENSING	RADIAL		RECTANGULAR PACKAGE		TR	2		240 V	WIRE								RESISTANCE RANGE(MIN-MAX): 0.6-0.97
V661CA40PC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	900 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				660 V	850 V					850 V
V251CA40NC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	370 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				250 V	330 V					330 V
RF0003-000	Littelfuse	PTC THERMISTOR	THROUGH HOLE MOUNT	2 W	85 Cel		OVERLOAD PROTECTION	RADIAL		RECTANGULAR PACKAGE		TR	2		240 V	WIRE					LVR			MINIMUM RESISTANCE IS 0.6 OHMS
V661CA40	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	85 Cel			DUAL		CYLINDRICAL PACKAGE	900 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				660 V	850 V					850 V
V151CA40	Littelfuse	VARISTOR	SURFACE MOUNT	2 W	85 Cel			DUAL		CYLINDRICAL PACKAGE	300 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				150 V	200 V					200 V
V751CA40PC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	1050 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				750 V	970 V					970 V
V571NA34	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	85 Cel	85 Cel		DUAL		RECTANGULAR PACKAGE	770 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				575 V	730 V					730 V
SMOV34S111NP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		280 J		2	RECTANGULAR		FLAT		-45 Cel		44.5 mm		115 V	150 V		41 mm		20 mm	150 V
SMOV34S461MP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		960 J		5	RECTANGULAR		FLAT AND WIRE		-45 Cel		44.5 mm		460 V	610 V		41 mm		20 mm	610 V
SMOV34S751MP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		1200 J		5	RECTANGULAR		FLAT AND WIRE		-45 Cel		44.5 mm		750 V	970 V		41 mm		20 mm	970 V
A88390-000	Littelfuse	PTC RESETTABLE FUSE	SURFACE MOUNT	2 W	85 Cel		TEMPERATURE SENSING	DUAL IN-LINE		RECTANGULAR PACKAGE		TR	4		250 V	WRAPAROUND					TSM600			RESISTANCE RANGE(MIN-MAX): 1.0-3.0
V131HC32	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	125 Cel	85 Cel		RADIAL	METAL OXIDE FILM	DISK PACKAGE	200 J		2	Radial		FLAT	Non-linear Resistors	-55 Cel	TIN			130 V	175 V			e3		175 V
V271CA40PC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	400 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				275 V	369 V					369 V
SMOV34S751NP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		1200 J		2	RECTANGULAR		FLAT		-45 Cel		44.5 mm		750 V	970 V		41 mm		20 mm	970 V
V511CA40PS	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	700 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				510 V	675 V					675 V
SMOV34S251NP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		490 J		2	RECTANGULAR		FLAT		-45 Cel		44.5 mm		250 V	320 V		41 mm		20 mm	320 V
V321NA34	Littelfuse	VARISTOR	SURFACE MOUNT	2 W	125 Cel	85 Cel		DUAL		RECTANGULAR PACKAGE	460 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				320 V	420 V					420 V
V271HC40	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	125 Cel	85 Cel		RADIAL	METAL OXIDE FILM	DISK PACKAGE	400 J		2	Radial		FLAT	Non-linear Resistors	-55 Cel	TIN			275 V	369 V			e3		369 V
V511CA40NS	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	700 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				510 V	675 V					675 V
V661CA40NS	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	900 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				660 V	850 V					850 V
SMOV34S181MP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		400 J		5	RECTANGULAR		FLAT AND WIRE		-45 Cel		44.5 mm		180 V	240 V		41 mm		20 mm	240 V
SMOV34S321MP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		640 J		5	RECTANGULAR		FLAT AND WIRE		-45 Cel		44.5 mm		320 V	420 V		41 mm		20 mm	420 V
SMOV34S551MP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		965 J		5	RECTANGULAR		FLAT AND WIRE		-45 Cel		44.5 mm		550 V	700 V		41 mm		20 mm	700 V
V251CA40	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	85 Cel			DUAL		CYLINDRICAL PACKAGE	370 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				250 V	330 V					330 V
V251CA40PS	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	370 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				250 V	330 V					330 V
V571CA40	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	85 Cel			DUAL		CYLINDRICAL PACKAGE	770 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				575 V	730 V					730 V
V321CA40NC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	460 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				320 V	420 V					420 V
V511CA40NC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	700 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				510 V	675 V					675 V
V571CA40NS	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	770 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				575 V	730 V					730 V
V151CA40NC	Littelfuse	VARISTOR	SURFACE MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	300 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				150 V	200 V					200 V
V131NA34	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	85 Cel	85 Cel		DUAL		RECTANGULAR PACKAGE	270 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				130 V	175 V					175 V
V571CA40NC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	770 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				575 V	730 V					730 V
V271NA34	Littelfuse	VARISTOR	SURFACE MOUNT	2 W	125 Cel	85 Cel		DUAL		RECTANGULAR PACKAGE	400 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				275 V	369 V					369 V
V751CA40NC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	1050 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				750 V	970 V					970 V
V151CA40PS	Littelfuse	VARISTOR	SURFACE MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	300 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				150 V	200 V					200 V
V271CA40	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	85 Cel			DUAL		DISK PACKAGE	400 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				275 V	369 V					369 V
V421NA34	Littelfuse	VARISTOR	SURFACE MOUNT	2 W	125 Cel	85 Cel		DUAL		RECTANGULAR PACKAGE	600 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				420 V	560 V					560 V
V421CA40NC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	600 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				420 V	560 V					560 V
V131CA40	Littelfuse	VARISTOR	SURFACE MOUNT	2 W	85 Cel			DUAL		CYLINDRICAL PACKAGE	270 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				130 V	175 V					175 V
SMOV34S511NP	Littelfuse	VARISTOR	THROUGH HOLE MOUNT	2 W	75 Cel			RADIAL	METAL OXIDE FILM		960 J		2	RECTANGULAR		FLAT		-45 Cel		44.5 mm		510 V	675 V		41 mm		20 mm	675 V
V321CA40PC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	460 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				320 V	420 V					420 V
V251CA40PC	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	370 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				250 V	330 V					330 V
V321CA40PS	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	460 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				320 V	420 V					420 V
V481CA40PS	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	650 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				480 V	640 V					640 V
V751NA34	Littelfuse	VARISTOR	SURFACE MOUNT	2 W	125 Cel	85 Cel		DUAL		RECTANGULAR PACKAGE	1050 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				750 V	970 V					970 V
V661CA40PS	Littelfuse	VARISTOR	CHASSIS MOUNT	2 W	125 Cel	85 Cel		DUAL		DISK PACKAGE	900 J	BULK	2			SPECIAL	Non-linear Resistors	-55 Cel				660 V	850 V					850 V

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.