.3 W Non-linear Resistors 79

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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	Technology	Shape (Package)	Maximum Energy Absorbing Capacity	Packing Method	No. of Terminals	Package Style (Meter)	Rated AC Voltage (URac)	Terminal Shape	Sub-Category	Thermal Sensitivity Index	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
B57621C5103J062	TDK	NTC THERMISTOR	SURFACE MOUNT	10000 ohm	.3 W	125 Cel	5 %	25 Cel	TEMPERATURE COMPENSATION	DUAL ENDED		RECTANGULAR PACKAGE		TR, BLISTER, 7 INCH	2			WRAPAROUND		3510 K	-55 Cel	TIN OVER NICKEL		B57621C5					e3
B57621C0473K062	Epcos Ag	NTC THERMISTOR	SURFACE MOUNT	47000 ohm	.3 W	125 Cel	10 %	25 Cel	TEMPERATURE SENSING	DUAL ENDED		RECTANGULAR PACKAGE		TR, BLISTER, 7 INCH	2			WRAPAROUND	Non-linear Resistors	3890 K	-55 Cel	Silver/Palladium (Ag/Pd)		B57621					e4
B57621-C333-J62	TDK	NTC THERMISTOR	SURFACE MOUNT	33000 ohm	.3 W	125 Cel	5 %	25 Cel	TEMPERATURE SENSING	DUAL ENDED		RECTANGULAR PACKAGE		TR, BLISTER, 7 INCH	2			WRAPAROUND		3960 K	-55 Cel	Silver/Palladium (Ag/Pd)							e4
ERZE07A621	Panasonic	VARISTOR	THROUGH HOLE MOUNT		.3 W	85 Cel				RADIAL			80 J	BULK	2	Radial		WIRE			-40 Cel		10 mm		385 V	505 V		10 mm		CQC; UL; VDE	7.8 mm	505 V
B57621C5103J062V09	TDK	NTC THERMISTOR	SURFACE MOUNT	10000 ohm	.3 W	125 Cel	5 %	25 Cel	TEMPERATURE COMPENSATION	DUAL ENDED		RECTANGULAR PACKAGE		TR, BLISTER, 7 INCH	2			WRAPAROUND		3530 K	-55 Cel	TIN OVER NICKEL					STANDARD: IEC60068		e3
V18AUMLA1812NH	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel		125 Cel		DUAL ENDED	METAL OXIDE FILM	RECTANGULAR PACKAGE	6 J	TR, EMBOSSED PLASTIC, 7 INCH	2	SMT		WRAPAROUND	Non-linear Resistors		-55 Cel					18 V			e3			18 V
B57621C0103K062	TDK	NTC THERMISTOR	SURFACE MOUNT	10000 ohm	.3 W	125 Cel	10 %	25 Cel	TEMPERATURE SENSING	DUAL ENDED		RECTANGULAR PACKAGE		TR, BLISTER, 7 INCH	2			WRAPAROUND		3510 K	-55 Cel	Silver/Palladium (Ag/Pd)							e4
WT1812ML300ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	3.6 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				25 V	30 V	STANDARD: IEC61000-4-2					30 V
WT1812ML450ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	4.5 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				35 V	45 V	STANDARD: IEC61000-4-2					45 V
WT1812ML120APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	1.8 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				9 V	12 V	STANDARD: IEC61000-4-2					12 V
WT1812ML850APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	5.8 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				60 V	85 V	STANDARD: IEC61000-4-2					85 V
WT1812ML560APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	4.8 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				40 V	56 V	STANDARD: IEC61000-4-2					56 V
WT1812ML090APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	1 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				6 V	9 V	STANDARD: IEC61000-4-2					9 V
WT1812ML300APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	3.6 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				25 V	30 V	STANDARD: IEC61000-4-2					30 V
WT1812ML090ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	1 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				6 V	9 V	STANDARD: IEC61000-4-2					9 V
WT1812ML450APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	4.5 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				35 V	45 V	STANDARD: IEC61000-4-2					45 V
WT1812ML120ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	1.8 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				9 V	12 V	STANDARD: IEC61000-4-2					12 V
WT1812ML680APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	4.5 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				50 V	68 V	STANDARD: IEC61000-4-2					68 V
WT1812ML560ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	4.8 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				40 V	56 V	STANDARD: IEC61000-4-2					56 V
WT1812ML180ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	2.3 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				14 V	18 V	STANDARD: IEC61000-4-2					18 V
WT1812ML260APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	3 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				20 V	26 V	STANDARD: IEC61000-4-2					26 V
WT1812ML380APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	4.2 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				30 V	38 V	STANDARD: IEC61000-4-2					38 V
WT1812ML140APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	2 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				11 V	14 V	STANDARD: IEC61000-4-2					14 V
WT1812ML260ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	3 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				20 V	26 V	STANDARD: IEC61000-4-2					26 V
WT1812ML220APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	2.5 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				17 V	22 V	STANDARD: IEC61000-4-2					22 V
WT1812ML180APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	2.3 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				14 V	18 V	STANDARD: IEC61000-4-2					18 V
WT1812ML680ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	4.5 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				50 V	68 V	STANDARD: IEC61000-4-2					68 V
WT1812ML140ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	2 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				11 V	14 V	STANDARD: IEC61000-4-2					14 V
VI8AUMLA1812WA	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	150 Cel		125 Cel		DUAL ENDED		RECTANGULAR PACKAGE		BULK	2			WRAPAROUND	Non-linear Resistors		-55 Cel					18 V						18 V
VI8AUMLA1812WT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	150 Cel		125 Cel		DUAL ENDED		RECTANGULAR PACKAGE		TR, 13 INCH	2			WRAPAROUND	Non-linear Resistors		-55 Cel					18 V						18 V
WT1812ML050ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	.8 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				4 V	5.5 V	STANDARD: IEC61000-4-2					5.5 V
WT1812ML050APT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	.8 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				4 V	5.5 V	STANDARD: IEC61000-4-2					5.5 V
VI8AUMLA1812T	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	150 Cel		125 Cel		DUAL ENDED		RECTANGULAR PACKAGE		TR, 13 INCH	2			WRAPAROUND	Non-linear Resistors		-55 Cel					18 V						18 V
WT1812ML380ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	4.2 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				30 V	38 V	STANDARD: IEC61000-4-2					38 V
WT1812ML220ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	2.5 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				17 V	22 V	STANDARD: IEC61000-4-2					22 V
VI8AUMLA1812WH	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	150 Cel		125 Cel		DUAL ENDED		RECTANGULAR PACKAGE		TR, 7 INCH	2			WRAPAROUND	Non-linear Resistors		-55 Cel					18 V						18 V
WT1812ML850ANT	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	125 Cel				DUAL ENDED		RECTANGULAR PACKAGE	5.8 J	TR, 7 INCH	2			WRAPAROUND			-55 Cel				60 V	85 V	STANDARD: IEC61000-4-2					85 V
VI8AUMLA1812H	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	150 Cel		125 Cel		DUAL ENDED		RECTANGULAR PACKAGE		TR, 7 INCH	2			WRAPAROUND	Non-linear Resistors		-55 Cel					18 V						18 V
A24386-000	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT		.3 W	85 Cel			TEMPERATURE SENSING	RADIAL		DISK PACKAGE		BULK	2		6 V	WIRE									RESISTANCE RANGE(MIN-MAX): 0.11-0.175
KR102D0J	Littelfuse	NTC THERMISTOR	SURFACE MOUNT	1000 ohm	.3 W	125 Cel	5 %		TEMPERATURE SENSING	DUAL ENDED					2	SMT		WRAPAROUND		3250 K	-40 Cel		1.27 mm					2 mm			1.25 mm
KR503L0J	Littelfuse	NTC THERMISTOR	SURFACE MOUNT	50000 ohm	.3 W	125 Cel	5 %		TEMPERATURE SENSING	DUAL ENDED					2	SMT		WRAPAROUND		4150 K	-40 Cel		1.27 mm					2 mm			1.25 mm
VI8AUMLA1812A	Littelfuse	VARISTOR	SURFACE MOUNT		.3 W	150 Cel		125 Cel		DUAL ENDED		RECTANGULAR PACKAGE		BULK	2			WRAPAROUND	Non-linear Resistors		-55 Cel					18 V						18 V
V31CP20	Littelfuse	VARISTOR			.3 W	125 Cel				COAXIAL		TUBULAR PACKAGE	2 J		2			SPECIAL	Non-linear Resistors		-55 Cel				25 V	31 V						31 V
V38CP20	Littelfuse	VARISTOR			.3 W	125 Cel				COAXIAL		TUBULAR PACKAGE	2 J		2			SPECIAL	Non-linear Resistors		-55 Cel				30 V	38 V						38 V
V07X130E	Littelfuse	VARISTOR	THROUGH HOLE MOUNT		.3 W	125 Cel				RADIAL	METAL OXIDE		19 J	BULK	2	Radial		WIRE			-40 Cel		12.5 mm		130 V	170 V		9 mm		CUL; TUV; UL	4.9 mm
V07X175E	Littelfuse	VARISTOR	THROUGH HOLE MOUNT		.3 W	125 Cel				RADIAL	METAL OXIDE		28 J	BULK	2	Radial		WIRE			-40 Cel		12.5 mm		175 V	225 V		9 mm		CUL; TUV; UL	5.3 mm
V07X330E	Littelfuse	VARISTOR	THROUGH HOLE MOUNT		.3 W	125 Cel				RADIAL	METAL OXIDE		52 J	BULK	2	Radial		WIRE			-40 Cel		12.5 mm		330 V	435 V		9 mm		CUL; TUV; UL	6.8 mm
V07X440E	Littelfuse	VARISTOR	THROUGH HOLE MOUNT		.3 W	125 Cel				RADIAL	METAL OXIDE		68 J	BULK	2	Radial		WIRE			-40 Cel		12.5 mm		440 V	585 V		9 mm		CUL; TUV; UL	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.