.021 ohm Non-linear Resistors 21

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Part	Manufacturer	Resistor Type	Mounting Type	Resistance	Maximum Operating Temperature	Thermistor Application	Terminal Placement	Shape (Package)	Packing Method	No. of Terminals	Package Style (Meter)	Terminal Shape	Sub-Category	Minimum Operating Temperature	Terminal Finish	Height (Package)	Operating Voltage	Additional Features	Length (Package)	JESD-609 Code	Reference Standard	Width (Package)	Maximum Circuit DC Voltage
16R400GPR	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL	RECTANGULAR PACKAGE	AMMO PACK	2	Radial	WIRE	Non-linear Resistors	-40 Cel	MATTE TIN	12.8 mm	16 V	Rmax:0.06 OHMS AT 20 DEG CEL	8.9 mm	e3	CUL, TUV, UL	3 mm
16R400GU	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL	RECTANGULAR PACKAGE	BULK	2	Radial	WIRE	Non-linear Resistors	-40 Cel	MATTE TIN	12.8 mm	16 V	Rmax:0.06 OHMS AT 20 DEG CEL	8.9 mm	e3	CUL, TUV, UL	3 mm
AHRF400-AP	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	125 Cel	OVERCURRENT PROTECTION	RADIAL	RECTANGULAR PACKAGE	AMMO PACK	2	Radial	WIRE		-40 Cel	Tin (Sn)	15 mm	16 V	RMIN AT 25 DEG CEL	10 mm	e3	AEC-Q200	3 mm
AHRF400-2	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	125 Cel	OVERCURRENT PROTECTION	RADIAL	RECTANGULAR PACKAGE	TR, 15 INCH	2	Radial	WIRE		-40 Cel	Tin (Sn)	15 mm	16 V	RMIN AT 25 DEG CEL	10 mm	e3	AEC-Q200	3 mm
AHRF400	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	125 Cel	OVERCURRENT PROTECTION	RADIAL	RECTANGULAR PACKAGE	BULK	2	Radial	WIRE		-40 Cel		15 mm	16 V	RMIN AT 25 DEG CEL	10 mm		AEC-Q200	3 mm
RGEF400K	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL	RECTANGULAR PACKAGE	BULK	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400K-AP	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL	RECTANGULAR PACKAGE	AMMO PACK	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400S	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		BULK	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400S-2	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		TR, 14.5 INCH	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400S-AP	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		AMMO PACK	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400S-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL			2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V	Rmax:0.039 OHMS AT 20 DEG CEL	8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400B-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL			2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V	Rmax:0.039 OHMS AT 20 DEG CEL	8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400U-AP	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		AMMO PACK	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400B-AP	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		AMMO PACK	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400K-2	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		TR, 14.5 INCH	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400K-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL			2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V	Rmax:0.039 OHMS AT 20 DEG CEL	8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400B-2	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		TR, 14.5 INCH	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400U-1	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL			2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V	Rmax:0.039 OHMS AT 20 DEG CEL	8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400U	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		BULK	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400U-2	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		TR, 14.5 INCH	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 V
RGEF400B	Littelfuse	PTC RESETTABLE FUSE	THROUGH HOLE MOUNT	.021 ohm	85 Cel	OVERCURRENT PROTECTION	RADIAL		BULK	2	Radial	WIRE		-40 Cel	Tin (Sn)	12.8 mm	16 V		8.9 mm	e3	CSA; TUV; UL	3 mm	16 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.