250 ohm Fixed Resistors 55

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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)

PTF56250R00BYEK

Vishay Intertechnology

FIXED RESISTOR

THROUGH HOLE MOUNT

250 ohm

.125 W

150 Cel

.1 %

85 Cel

METAL FILM

TUBULAR PACKAGE

BULK

2

WIRE

-55 Cel

10

Matte Tin (Sn) - with Nickel (Ni) barrier

300 V

PRICISION

e3

PWR263S-35-2500F

Bourns

FIXED RESISTOR

SURFACE MOUNT

250 ohm

35 W

155 Cel

1 %

25 Cel

METAL GLAZE/THICK FILM

Rectangular

TUBE

4035

2

SMT

GULL WING

-55 Cel

100

MATTE TIN

4.5 mm

250 V

10.1 mm

e3

AEC-Q200

8.8 mm

CMF55250R00BHEK

Vishay Intertechnology

FIXED RESISTOR

THROUGH HOLE MOUNT

250 ohm

.5 W

165 Cel

.1 %

70 Cel

METAL FILM

TUBULAR PACKAGE

BULK

2

WIRE

-55 Cel

50

MATTE TIN

250 V

FLAMEPROOF, PRECISION

e3

PLTT0805Z2500AGT5

Vishay Intertechnology

FIXED RESISTOR

SURFACE MOUNT

250 ohm

.25 W

230 Cel

.05 %

70 Cel

THIN FILM

RECTANGULAR PACKAGE

TR

0805

2

WRAPAROUND

-55 Cel

5

Gold (Au) - with Nickel (Ni) barrier

100 V

FLAME PROOF, PRECISION

e4

PTF65250R00AYEK

Vishay Intertechnology

FIXED RESISTOR

THROUGH HOLE MOUNT

250 ohm

.25 W

150 Cel

.05 %

85 Cel

METAL FILM

TUBULAR PACKAGE

BULK

2

WIRE

-55 Cel

10

Matte Tin (Sn)

500 V

PRICISION

e3

PWR263S-35-2500JE

Bourns

FIXED RESISTOR

SURFACE MOUNT

250 ohm

35 W

155 Cel

5 %

25 Cel

METAL GLAZE/THICK FILM

Rectangular

TR

4035

2

SMT

GULL WING

-55 Cel

100

MATTE TIN

4.5 mm

250 V

10.1 mm

e3

AEC-Q200

8.8 mm

RN65E2500BB14

Vishay Intertechnology

FIXED RESISTOR

THROUGH HOLE MOUNT

250 ohm

.25 W

175 Cel

.1 %

125 Cel

METAL FILM

TUBULAR PACKAGE

BULK

2

WIRE

-65 Cel

25

Tin/Lead (Sn/Pb)

350 V

FLAME PROOF, PRECISION

e0

MIL-R-10509

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.