121 ohm Fixed Resistors 10

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Part	Manufacturer	Resistor Type	Mounting Type	Resistance	Rated Power Dissipation (P)	Maximum Operating Temperature	Tolerance	Diameter (Lead)	Rated Temperature	Technology	Shape (Package)	Construction	Packing Method	Size Code	No. of Terminals	Package Style (Meter)	Terminal Shape	Sub-Category	Minimum Operating Temperature	Temperature Coef (ppm/Cel)	Terminal Finish	Height (Package)	Operating Voltage	Additional Features	Length (Package)	JESD-609 Code	Diameter (Package)	Reference Standard	Width (Package)
RWR84S1210FRB12	Vishay Intertechnology	FIXED RESISTOR	THROUGH HOLE MOUNT	121 ohm	7 W	250 Cel	1 %	1.02 mm	25 Cel	WIRE WOUND		Tubular	BULK		2	Axial	WIRE		-55 Cel	30	Tin/Lead (Sn/Pb)		29.1033 V		22.23 mm	e0	7.92 mm	MIL-PRF-39007
RWR78N1210FMB12	Vishay Intertechnology	FIXED RESISTOR	THROUGH HOLE MOUNT	121 ohm	10 W	250 Cel	1 %	1.02 mm	25 Cel	WIRE WOUND		Tubular	BULK		2	Axial	WRAPAROUND		-55 Cel	30	Tin/Lead (Sn60Pb40)		34.7851 V	NON INDUCTIVE	45.21 mm	e0	9.525 mm	MIL-PRF-39007
RWR78N1210FMBSL	Vishay Intertechnology	FIXED RESISTOR	THROUGH HOLE MOUNT	121 ohm	10 W	250 Cel	1 %	1.02 mm	25 Cel	WIRE WOUND		Tubular	BULK		2	Axial	WRAPAROUND		-55 Cel	30	Tin/Lead (Sn60Pb40)		34.7851 V	NON INDUCTIVE	45.21 mm	e0	9.525 mm	MIL-PRF-39007
RWR78N1210FMRSL	Vishay Intertechnology	FIXED RESISTOR	THROUGH HOLE MOUNT	121 ohm	10 W	250 Cel	1 %	1.02 mm	25 Cel	WIRE WOUND		Tubular	TR		2	Axial	WRAPAROUND		-55 Cel	30	Tin/Lead (Sn60Pb40)		34.7851 V	NON INDUCTIVE	45.21 mm	e0	9.525 mm	MIL-PRF-39007
CRT0805-BY-1210ELF	Bourns	FIXED RESISTOR	SURFACE MOUNT	121 ohm	.125 W	155 Cel	.1 %		70 Cel	THIN FILM	RECTANGULAR PACKAGE	Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND		-55 Cel	25	MATTE TIN OVER NICKEL	.55 mm	150 V	PRECISION	2 mm	e3			1.25 mm
CRCW0805121RFKEB	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	121 ohm	.125 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 11.25 INCH	0805	2	SMT	WRAPAROUND		-55 Cel	100	MATTE TIN OVER NICKEL	.45 mm	150 V	LASER TRIMMABLE, RATED AC VOLTAGE (V): 150	2 mm	e3		AEC-Q200	1.25 mm
ESR18EZPF1210	ROHM	FIXED RESISTOR		121 ohm	.33 W	155 Cel	1 %			METAL GLAZE/THICK FILM		Chip	TR, Paper, 7 Inch	1206	2	SMT		FIXED RESISTOR	-55 Cel	100	TIN OVER NICKEL	.55 mm	200 V		3.2 mm	e3		AEC-Q200	1.6 mm
CRCW0805121RFKEAC	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	121 ohm	.125 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND		-55 Cel	100	MATTE TIN OVER NICKEL	.5 mm	150 V	RATED AC COLTAGE(V): 150	2 mm	e3			1.25 mm
RCS1206121RFKEA	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	121 ohm	.5 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	1206	2	SMT	WRAPAROUND		-55 Cel	100	Tin (Sn) - with Nickel (Ni) barrier	.55 mm	200 V	RATED AC VOLTAGE (V) : 200	3.2 mm	e3		AEC-Q200	1.6 mm
ERJU02D1210X	Panasonic	FIXED RESISTOR	SURFACE MOUNT	121 ohm	.1 W	155 Cel	.5 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PUNCHED, 7 INCH	0402	2	SMT	WRAPAROUND		-55 Cel	200		.35 mm	50 V	ANTI-SULFUR, IEC60115-8	1 mm			AEC-Q200	.5 mm

Fixed Resistors

Fixed resistors are passive electronic components that are used to resist the flow of electric current in a circuit. They have a fixed value of resistance, meaning their resistance cannot be adjusted once they are manufactured. They are commonly used to set the bias of transistors, control the gain of amplifiers, or limit the current flowing through an LED. Fixed resistors come in various sizes, power ratings, and tolerances.

There are two types of fixed resistors: through-hole and surface mount. Through-hole resistors have leads that are inserted into holes on the printed circuit board (PCB), while surface mount resistors have terminals that are soldered directly to the surface of the PCB. Through-hole resistors are larger and easier to work with, but surface mount resistors are smaller and more suitable for miniaturized electronic devices.

Fixed resistors can be made from a variety of materials, including carbon, metal, and wire-wound. Carbon resistors are inexpensive and widely used, but they have a lower tolerance and are more susceptible to noise than other types. Metal film resistors have a higher tolerance and better stability, making them ideal for use in precision circuits. Wire-wound resistors have a higher power rating and are used in high power applications, such as power supplies and amplifiers.