12.1 ohm Fixed Resistors 8

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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)

RMB10512R10FS14

Vishay Intertechnology

FIXED RESISTOR

THROUGH HOLE MOUNT

12.1 ohm

1.2 W

275 Cel

1 %

.6 mm

70 Cel

WIRE WOUND

TUBULAR PACKAGE

Axial

BULK

2

Axial

WIRE

FIXED RESISTOR

-20,0

MATTE TIN/TIN SILVER COPPER

25 mm

120 V

PRECISION

10.2 mm

e3/e1

4 mm

ERJP14D12R1U

Panasonic

FIXED RESISTOR

SURFACE MOUNT

12.1 ohm

.5 W

155 Cel

.5 %

70 Cel

METAL GLAZE/THICK FILM

RECTANGULAR PACKAGE

Rectangular

TR, EMBOSSED, 7 INCH

1210

2

SMT

WRAPAROUND

-55 Cel

100

TIN

.6 mm

200 V

HIGH PRECISION, IEC60115-8

3.2 mm

e3

AEC-Q200

2.5 mm

MF0207FTE52-12R1

Yageo

FIXED RESISTOR

THROUGH HOLE MOUNT

12.1 ohm

.6 W

155 Cel

1 %

.55 mm

70 Cel

METAL FILM

TUBULAR PACKAGE

Tubular

AMMO PACK

2

Axial

WIRE

FIXED RESISTOR

-55 Cel

50

Matte Tin (Sn)

350 V

6.3 mm

e3

2.4 mm

AEC-Q200

CPF0402B12R1E1

TE Connectivity

FIXED RESISTOR

SURFACE MOUNT

12.1 ohm

.063 W

155 Cel

.1 %

70 Cel

THIN FILM

RECTANGULAR PACKAGE

Rectangular

TR

0402

2

SMT

WRAPAROUND

1mm x .5mm x .3mm

-55 Cel

25

.3 mm

25 V

PRECISION

1 mm

.5 mm

CRM2512-FX-12R1ELF

Bourns

FIXED RESISTOR

SURFACE MOUNT

12.1 ohm

2 W

155 Cel

1 %

70 Cel

METAL GLAZE/THICK FILM

Rectangular

TR, PAPER, 7 INCH

2512

2

SMT

WRAPAROUND

-55 Cel

100

MATTE TIN OVER NICKEL

.6 mm

300 V

CURRENT SENSING

6.3 mm

e3

3.1 mm

RCMS0212R10FHS14

Vishay Intertechnology

FIXED RESISTOR

THROUGH HOLE MOUNT

12.1 ohm

.5 W

155 Cel

1 %

.6 mm

70 Cel

METAL FILM

TUBULAR PACKAGE

Tubular

BULK

2

Axial

WIRE

-65 Cel

50

Matte Tin (Sn)

25 mm

350 V

PRECISION

6.5 mm

e3

2.5 mm

RC1206FR-0712R1L

Yageo

FIXED RESISTOR

SURFACE MOUNT

12.1 ohm

.25 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

200 V

LASER TRIMMABLE

3.1 mm

e3

1.6 mm

CR0805-FX-12R1ELF

Bourns

FIXED RESISTOR

SURFACE MOUNT

12.1 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

2 mm

e3

1.25 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.