.25 ohm Fixed Resistors 15

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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	Length (Lead)	Height (Package)	Manufacturer Series	Operating Voltage	Additional Features	Length (Package)	JESD-609 Code	Series	Diameter (Package)	Reference Standard	Width (Package)
RL0805FR-7W0R25L	Yageo	FIXED RESISTOR		.25 ohm	.25 W	125 Cel	1 %			METAL GLAZE/THICK FILM		Chip	TR, Paper, 7 Inch	0805	2	SMT		FIXED RESISTOR	-55 Cel	600	Matte Tin (Sn) - with Nickel (Ni) barrier		.5 mm				2 mm	e3	RL			1.25 mm
PT0805FR-070R25L	Yageo	FIXED RESISTOR		.25 ohm	.125 W	155 Cel	1 %			METAL GLAZE/THICK FILM		Chip	TR, Paper, 7 Inch	0805	2	SMT		Fixed Resistors	-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier		.55 mm				2 mm	e3	PT			1.25 mm
PT0805JR-070R25L	Yageo	FIXED RESISTOR	SURFACE MOUNT	.25 ohm	.125 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Chip	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND	Fixed Resistors	-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier		.55 mm	PT		LASER TRIMMABLE	2 mm	e3	PT			1.25 mm
PWR163S-25-R250F	Bourns	FIXED RESISTOR	SURFACE MOUNT	.25 ohm	25 W	155 Cel	1 %		25 Cel	METAL GLAZE/THICK FILM		Rectangular	TUBE	3232	2	SMT	GULL WING		-55 Cel	100	TIN		2.79 mm		250 V		8.22 mm	e3			AEC-Q200	8.13 mm
C300KR25E	Ohmite Manufacturing	FIXED RESISTOR	CHASSIS MOUNT	.25 ohm	300 W	400 Cel	10 %		25 Cel	WIRE WOUND	TUBULAR PACKAGE	Vitreous Enamelled			2	Chassis Mount	LUG	Fixed Resistors		400	TIN SILVER COPPER			280			215.9 mm	e1	280	28.58 mm
E300KR25E	Ohmite Manufacturing	FIXED RESISTOR	CHASSIS MOUNT	.25 ohm	300 W	400 Cel	10 %		25 Cel	WIRE WOUND	TUBULAR PACKAGE	Vitreous Enamelled			2	Chassis Mount	LUG	Fixed Resistors		400	TIN SILVER COPPER			280			215.9 mm	e1	280	28.58 mm
PFE5KR250	Ohmite Manufacturing	FIXED RESISTOR	CHASSIS MOUNT	.25 ohm			10 %			WIRE WOUND	TUBULAR PACKAGE	Ribbed		70	2	Radial	SPECIAL	Fixed Resistors		300			79.38 mm			RATED CURRENT: 63A	17.88 mm					58.75 mm
PFE5KR250E	Ohmite Manufacturing	FIXED RESISTOR	CHASSIS MOUNT	.25 ohm	992 W	350 Cel	10 %		25 Cel	WIRE WOUND	TUBULAR PACKAGE	Rugged			2	Chassis Mount	SPECIAL	Fixed Resistors	0 Cel	300						RATED CURRENT: 63A	454.025 mm					58.75 mm
25JR25E	Ohmite Manufacturing	FIXED RESISTOR	THROUGH HOLE MOUNT	.25 ohm	5 W	350 Cel	5 %	.813 mm	25 Cel	WIRE WOUND	TUBULAR PACKAGE	All-Welded			2	Axial	WIRE	FIXED RESISTOR			TIN SILVER COPPER	38.1 mm			330 V		28.38 mm	e1		8.05 mm
CSR0805FTR250	Stackpole Electronics	FIXED RESISTOR	SURFACE MOUNT	.25 ohm	.25 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE	Rectangular	TR, PAPER, 7 INCH	0805	2	SMT	WRAPAROUND		-55 Cel	200	Matte Tin (Sn) - with Nickel (Ni) barrier		.55 mm				2 mm	e3				1.25 mm
CSR0805JKR250	Stackpole Electronics	FIXED RESISTOR	SURFACE MOUNT	.25 ohm	.25 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE		TR, PAPER, 7 INCH	0805	2		WRAPAROUND		-55 Cel	200	Matte Tin (Sn) - with Nickel (Ni) barrier							e3
CSR0805JTR250	Stackpole Electronics	FIXED RESISTOR	SURFACE MOUNT	.25 ohm	.25 W	155 Cel	5 %		70 Cel	METAL GLAZE/THICK FILM	RECTANGULAR PACKAGE		TR, PAPER, 7 INCH	0805	2		WRAPAROUND		-55 Cel	200	Matte Tin (Sn) - with Nickel (Ni) barrier							e3
CSR1206FTR250	Stackpole Electronics	FIXED RESISTOR	SURFACE MOUNT	.25 ohm	.5 W	155 Cel	1 %		70 Cel	METAL GLAZE/THICK FILM		Rectangular	TR, PAPER, 7 INCH	1206	2	SMT	WRAPAROUND		-55 Cel	100	Matte Tin (Sn) - with Nickel (Ni) barrier		.55 mm				3.05 mm	e3				1.55 mm
WFMB2512R2500FEA	Vishay Intertechnology	FIXED RESISTOR	SURFACE MOUNT	.25 ohm	4 W	170 Cel	1 %		70 Cel	METAL STRIP		Rectangular	TR, EMBOSSED PLASTIC, 7 INCH	2512	2	SMT	WRAPAROUND		-65 Cel	50			.5 mm		1 V	ANTI-SULFUR	6.35 mm				AEC-Q200	3.18 mm
TAP650JR25E	Ohmite Manufacturing	FIXED RESISTOR	CHASSIS MOUNT	.25 ohm	650 W	150 Cel	5 %		85 Cel	METAL GLAZE/THICK FILM		Rectangular			2	Chassis Mount	FLEXIBLE WIRE		-55 Cel	150			13.5 mm		5000 V		66.7 mm					58 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.