221 ohm Fixed Resistors 50

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Part	RoHS	Manufacturer	Resistor Type	Mounting Type	Resistance	Rated Power Dissipation (P)	Maximum Operating Temperature	Tolerance	Diameter (Lead)	Spacing (Lead)	Rated Temperature	No. of Functions	Technology	Shape (Package)	No. of Elements	Construction	Packing Method	Size Code	Network Type	No. of Terminals	Package Style (Meter)	Terminal Shape	Sub-Category	Dimensions	First Element Resistance	Minimum Operating Temperature	Temperature Coef (ppm/Cel)	Terminal Finish	Length (Lead)	Height (Package)	Manufacturer Series	Operating Voltage	Additional Features	Length (Package)	JESD-609 Code	Series	Diameter (Package)	Reference Standard	Width (Package)
MMA02040C2210FB300		Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	221 ohm	.4 W	155 Cel	1 %			70 Cel		THIN FILM			Cylindrical	TR, BLISTER, 7 INCH	1406		2	SMT	WRAPAROUND				-55 Cel	50	TIN OVER NICKEL				200 V	ANTI-SULFUR; LASER TRIMMABLE; RATED AC VOLTAGE (V): 200; STANDARD: CECC40401-803	3.6 mm	e3		1.4 mm	AEC-Q200
RC0402FR-07221RL		Yageo	FIXED RESISTOR	SURFACE MOUNT	221 ohm	.0625 W	155 Cel	1 %			70 Cel		METAL GLAZE/THICK FILM			Rectangular	TR, PAPER, 7 INCH	0402		2	SMT	WRAPAROUND				-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier		.35 mm		50 V	LASER TRIMMABLE	1 mm	e3				.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.