4 Fixed Inductors 404

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Part RoHS Manufacturer Inductor Type Inductor Application No. of Terminals Package Style (Meter) Shielded Surface Mount Lead Diameter Minimum Quality Factor (at L-nom) Lead Spacing Minimum Operating Temperature Terminal Finish Self Resonance Frequency Terminal Placement DC Resistance No. of Functions Lead Length Core Material Test Frequency Package Height Case or Size Code Manufacturer Series Special Feature Construction Tolerance Packing Method Package Length JESD-609 Code Shape or Size Description Series Terminal Shape Nominal Inductance (L) Package Diameter Reference Standard Package Width Maximum Operating Temperature Maximum Rated Current

MSD1278-153MLD

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

11.8 MHz

Dual In-Line

72 mΩ

2

Ferrite

100 kHz

0.317 in (8.05 mm)

4848

Rectangular

20 %

Tape and Reel, Embossed Plastic, 13 in

0.484 in (12.3 mm)

Rectangular Package

One Surface

15 μH

AEC-Q200

4.843 in (123 mm)

85 °C (185 °F)

3.25 A

MSD1278-154KLB

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

3 MHz

Dual In-Line

460 mΩ

2

Ferrite

100 kHz

0.317 in (8.05 mm)

4848

Rectangular

10 %

Tape and Reel

0.484 in (12.3 mm)

Rectangular Package

One Surface

150 μH

AEC-Q200

4.843 in (123 mm)

85 °C (185 °F)

1.29 A

MSD1278-154KLD

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

3 MHz

Dual In-Line

460 mΩ

2

Ferrite

100 kHz

0.317 in (8.05 mm)

4848

Rectangular

10 %

Tape and Reel, Embossed Plastic, 13 in

0.484 in (12.3 mm)

Rectangular Package

One Surface

150 μH

AEC-Q200

4.843 in (123 mm)

85 °C (185 °F)

1.29 A

MSD1278-274KLD

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

2.1 MHz

Dual In-Line

900 mΩ

2

Ferrite

100 kHz

0.317 in (8.05 mm)

4848

Rectangular

10 %

Tape and Reel, Embossed Plastic, 13 in

0.484 in (12.3 mm)

Rectangular Package

One Surface

270 μH

AEC-Q200

4.843 in (123 mm)

85 °C (185 °F)

920 mA

MSD1278T-183MLD

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin with Nickel barrier

12 MHz

Dual In-Line

80 mΩ

2

Ferrite

100 kHz

0.307 in (7.8 mm)

4848

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.484 in (12.3 mm)

e3

Rectangular Package

One Surface

18 μH

AEC-Q200

0.484 in (12.3 mm)

125 °C (257 °F)

3.08 A

MSD1278T-473MLD

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin with Nickel barrier

7.5 MHz

Dual In-Line

180 mΩ

2

Ferrite

100 kHz

0.307 in (7.8 mm)

4848

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.484 in (12.3 mm)

e3

Rectangular Package

One Surface

47 μH

AEC-Q200

0.484 in (12.3 mm)

125 °C (257 °F)

2.05 A

MSD1278T-822MLD

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin with Nickel barrier

20 MHz

Dual In-Line

55 mΩ

2

Ferrite

100 kHz

0.307 in (7.8 mm)

4848

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.484 in (12.3 mm)

e3

Rectangular Package

One Surface

8.2 μH

AEC-Q200

0.484 in (12.3 mm)

125 °C (257 °F)

3.9 A

MSD1583-103MED

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

16 MHz

Dual In-Line

31 mΩ

2

Ferrite

100 kHz

0.339 in (8.6 mm)

5959

Rectangular

20 %

Tape and Reel, Embossed Plastic, 13 in

0.591 in (15 mm)

Rectangular Package

One Surface

10 μH

0.591 in (15 mm)

85 °C (185 °F)

5.2 A

PFD2015-332MEC

Coilcraft

General Purpose Inductor

RF Inductor

4

Yes

Yes

-40 °C (-40 °F)

Silver Palladium Platinum

180 MHz

Dual In-Line

670 mΩ

2

Ferrite

100 kHz

Parallel Connected

20 %

Rectangular Package

Wraparound

3.3 μH

125 °C (257 °F)

525 mA

PFD3215-332MEC

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Silver Palladium Platinum

190 MHz

Dual In-Line

360 mΩ

2

Ferrite

100 kHz

0.059 in (1.5 mm)

1309

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.131 in (3.32 mm)

Rectangular Package

One Surface

3.3 μH

0.092 in (2.33 mm)

85 °C (185 °F)

780 mA

RL110-100M-RC

Bourns

General Purpose Inductor

RF Inductor

4

PCB Mount

No

No

0.028 in (0.7 mm)

-30 °C (-22 °F)

14 MHz

Radial

22 mΩ

1

0.138 in (3.5 mm)

Ferrite

2.52 MHz

Rectangular

20 %

Bulk

0.394 in (10 mm)

Rectangular Package

Wire

10 μH

0.394 in (10 mm)

100 °C (212 °F)

5.3 A

SDQ25-330-R

Eaton Corporation

General Purpose Inductor

4

Yes

Yes

-40 °C (-40 °F)

Dual In-Line

379.5 mΩ

1

Ferrite

100 kHz

Parallel Connected

20 %

Rectangular Package

Wire

33.8 μH

125 °C (257 °F)

812 mA

SRF0703-4R7M

Bourns

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin

Dual In-Line

40.6 mΩ

2

Ferrite

100 kHz

0.134 in (3.4 mm)

3030

Parallel Connected

Rectangular

20 %

Tape and Reel, Embossed, 13 in

0.299 in (7.6 mm)

e3

Rectangular Package

Wraparound

4.7 μH

0.299 in (7.6 mm)

125 °C (257 °F)

3.09 A

SRF0703-681M

Bourns

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin

Dual In-Line

3.96 Ω

2

Ferrite

100 kHz

0.134 in (3.4 mm)

3030

Parallel Connected

Rectangular

20 %

Tape and Reel, Embossed, 13 in

0.299 in (7.6 mm)

e3

Rectangular Package

Wraparound

680 μH

0.299 in (7.6 mm)

125 °C (257 °F)

290 mA

SRF0703A-470M

Bourns

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Tin

Dual In-Line

338 mΩ

2

Ferrite

100 kHz

0.134 in (3.4 mm)

3030

Parallel Connected

Rectangular

20 %

Tape and Reel, Embossed, 13 in

0.299 in (7.6 mm)

e3

Rectangular Package

Wraparound

47 μH

AEC-Q200

0.299 in (7.6 mm)

125 °C (257 °F)

1.08 A

SRF1260-100M

Bourns

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Tin

Dual Ended

24.6 mΩ

1

Ferrite

100 kHz

0.236 in (6 mm)

4949

Parallel Connected

Rectangular

20 %

Tape and Reel, Embossed, 13 in

0.492 in (12.5 mm)

e3

Rectangular Package

One Surface

10 μH

0.492 in (12.5 mm)

105 °C (221 °F)

5.35 A

SRF1260-4R7Y

Bourns

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Tin

Dual Ended

13.7 mΩ

1

Ferrite

100 kHz

0.236 in (6 mm)

4949

Parallel Connected

Rectangular

30 %

Tape and Reel, Embossed, 13 in

0.492 in (12.5 mm)

e3

Rectangular Package

One Surface

4.7 μH

0.492 in (12.5 mm)

105 °C (221 °F)

7.18 A

SRF1280-100M

Bourns

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Tin Silver Copper

Dual In-Line

24.1 mΩ

2

Ferrite

100 kHz

0.315 in (8 mm)

4949

Parallel Connected

Rectangular

20 %

Tape and Reel, Embossed, 13 in

0.492 in (12.5 mm)

e1

Rectangular Package

Wraparound

10 μH

0.492 in (12.5 mm)

125 °C (257 °F)

6.04 A

VLBUC12060120R12LF3

TDK

General Purpose Inductor

Power Inductor

4

SMT

No

Yes

-40 °C (-40 °F)

Dual Ended

125 μΩ

2

Ferrite

100 kHz

0.472 in (12 mm)

4747

DC Resistance is measured at 10%

Rectangular

15 %

Tape and Reel, 13 in

0.472 in (12 mm)

Rectangular Package

Wraparound

120 nH

0.236 in (6 mm)

125 °C (257 °F)

70 A

1812DPS-102MLD

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

38

-40 °C (-40 °F)

Gold - with Nickel barrier

285 MHz

Dual In-Line

200 mΩ

2

Ferrite

100 kHz

0.15 in (3.81 mm)

2320

Q is measured at 1 MHz

Rectangular

20 %

Tape and Reel, Embossed Plastic, 13 in

0.231 in (5.87 mm)

e4

Rectangular Package

One Surface

1 μH

0.196 in (4.98 mm)

85 °C (185 °F)

2.1 A

A9787-ALD

Coilcraft

General Purpose Inductor

Power Inductor

4

SMT

No

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

Single In-Line

17 mΩ

1

250 kHz

0.45 in (11.43 mm)

Rectangular

7 %

Tape and Reel, Embossed, 13 in

1.48 in (37.59 mm)

Rectangular Package

57 μH

1.23 in (31.24 mm)

85 °C (185 °F)

12 A

CTX06-14622

Eaton Corporation

General Purpose Inductor

4

No

Yes

Quad In-Line

11.7 mΩ

1

260 kHz

CTX06-14622

Cylindrical Package

Wraparound

22 μH

8.5 A

CTX10-3P-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

No

Yes

-40 °C (-40 °F)

On Circle

33 mΩ

2

Iron

Parallel Connected, also Configurable As Transformer

20 %

Rectangular Package

One Surface

9.79 μH

85 °C (185 °F)

2.7 A

CTX17-18765-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

No

Yes

-40 °C (-40 °F)

Dual In-Line

252 μΩ

2

Ferrite

100 kHz

3939

Rectangular Package

Wraparound

50 nH

125 °C (257 °F)

55 A

CTX20-1P-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

No

Yes

-40 °C (-40 °F)

On Circle

158 mΩ

2

Iron

Parallel Connected, also Configurable As Transformer

20 %

Rectangular Package

One Surface

20.46 μH

85 °C (185 °F)

1 A

CTX20-2P-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

SMT

No

Yes

-40 °C (-40 °F)

On Circle

97 mΩ

2

Iron

100 kHz

0.235 in (5.97 mm)

3535

Parallel Connected, also Configurable As Transformer

Rectangular

20 %

Tape and Reel, 13 in

0.35 in (8.89 mm)

Rectangular Package

One Surface

19.58 μH

0.35 in (8.89 mm)

85 °C (185 °F)

1.5 A

CTX20-4-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

SMT

No

Yes

-40 °C (-40 °F)

On Circle

55 mΩ

2

Iron

100 kHz

0.25 in (6.35 mm)

4545

Parallel Connected, also Configurable As Transformer

Rectangular

20 %

Tape and Reel, 13 in

0.45 in (11.43 mm)

Rectangular Package

One Surface

19.6 μH

0.45 in (11.43 mm)

85 °C (185 °F)

2.1 A

CTX20-4P-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

No

Yes

-40 °C (-40 °F)

On Circle

84 mΩ

2

Iron

Parallel Connected, also Configurable As Transformer

20 %

Rectangular Package

One Surface

20.62 μH

85 °C (185 °F)

1.9 A

CTX25-4A-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

SMT

No

Yes

-40 °C (-40 °F)

On Circle

48 mΩ

2

Iron

100 kHz

0.25 in (6.35 mm)

4545

Parallel Connected, also Configurable As Transformer

Rectangular

25 %

Tape and Reel, 13 in

0.45 in (11.43 mm)

Rectangular Package

One Surface

25.14 μH

0.45 in (11.43 mm)

85 °C (185 °F)

3.02 A

CTX33-4-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

No

Yes

-40 °C (-40 °F)

On Circle

72 mΩ

2

Iron

Parallel Connected, also Configurable As Transformer

20 %

Rectangular Package

One Surface

33.12 μH

85 °C (185 °F)

1.8 A

CTX50-4P-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

No

Yes

-40 °C (-40 °F)

On Circle

201 mΩ

2

Iron

Parallel Connected, also Configurable As Transformer

20 %

Rectangular Package

One Surface

48.8 μH

85 °C (185 °F)

1.2 A

CTX500-2-52M-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

Toroidal

No

No

0.039 in (1 mm)

-40 °C (-40 °F)

Radial

183 mΩ

2

0.167 in (4.25 mm)

Iron

1.512 in (38.4 mm)

Vertical Mount

Bulk

1.22 in (31 mm)

Rectangular Package

Wire

500 μH

0.63 in (16 mm)

75 °C (167 °F)

3.1 A

DRAP127-330-R

Eaton Corporation

General Purpose Inductor

Power Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Quad

72 mΩ

1

Ferrite

100 kHz

0.319 in (8.1 mm)

4949

Rectangular

20 %

Tape and Reel, 13 in

0.492 in (12.5 mm)

Rectangular Package

Wraparound

32 μH

AEC-Q200

0.492 in (12.5 mm)

165 °C (329 °F)

3.22 A

DW3316-335MLD

Coilcraft

General Purpose Inductor

Filter Choke

4

SMT

No

Yes

-40 °C (-40 °F)

Gold - with Nickel barrier

1.1 MHz

Dual In-Line

20 Ω

2

Ferrite

10 kHz

0.205 in (5.21 mm)

5140

Rectangular

20 %

Tape and Reel, Embossed Plastic, 13 in

0.515 in (13.08 mm)

e4

Rectangular Package

Wraparound

3.3 mH

0.4 in (10.16 mm)

85 °C (185 °F)

180 mA

JA4590-ALD

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

No

Yes

-40 °C (-40 °F)

8 MHz

Dual In-Line

28 mΩ

2

Ferrite

100 kHz

0.547 in (13.9 mm)

5959

Rectangular

10 %

Tape and Reel, Embossed Plastic, 13 in

0.591 in (15 mm)

Rectangular Package

Wraparound

22 μH

0.591 in (15 mm)

125 °C (257 °F)

4.2 A

LPD3015-332MLC

Coilcraft

General Purpose Inductor

High Current Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Silver Palladium Platinum

90 MHz

Dual In-Line

337 mΩ

2

Ferrite

100 kHz

0.055 in (1.4 mm)

1212

Parallel Connected

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.118 in (3 mm)

Rectangular Package

One Surface

3.3 μH

0.118 in (3 mm)

125 °C (257 °F)

940 mA

LPD3015-391MLC

Coilcraft

General Purpose Inductor

High Current Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Silver Palladium Platinum

289 MHz

Dual In-Line

71 mΩ

2

Ferrite

100 kHz

0.055 in (1.4 mm)

1212

Parallel Connected

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.118 in (3 mm)

Rectangular Package

One Surface

390 nH

0.118 in (3 mm)

125 °C (257 °F)

2.05 A

LPD4012-153MLC

Coilcraft

General Purpose Inductor

High Current Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

21 MHz

Dual In-Line

1.13 Ω

2

Ferrite

100 kHz

0.043 in (1.1 mm)

1616

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.155 in (3.94 mm)

Rectangular Package

One Surface

15 μH

0.155 in (3.94 mm)

125 °C (257 °F)

600 mA

LPD4012-153MRB

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

21 MHz

Dual In-Line

1.13 Ω

2

Ferrite

100 kHz

0.043 in (1.1 mm)

1616

Rectangular

20 %

Tape and Reel

0.155 in (3.94 mm)

Rectangular Package

Wraparound

15 μH

AEC-Q200

0.155 in (3.94 mm)

125 °C (257 °F)

600 mA

LPD4012-154MRC

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

4.6 MHz

Dual In-Line

6.9 Ω

2

Ferrite

100 kHz

0.043 in (1.1 mm)

1616

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.155 in (3.94 mm)

Rectangular Package

Wraparound

150 μH

AEC-Q200

0.155 in (3.94 mm)

125 °C (257 °F)

230 mA

LPD4012-682MRC

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

31 MHz

Dual In-Line

530 mΩ

2

Ferrite

100 kHz

0.043 in (1.1 mm)

1616

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.155 in (3.94 mm)

Rectangular Package

Wraparound

6.8 μH

AEC-Q200

0.155 in (3.94 mm)

125 °C (257 °F)

860 mA

LPD5010-103MRB

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

46 MHz

Dual In-Line

780 mΩ

2

Ferrite

100 kHz

0.035 in (0.9 mm)

1919

Chip

20 %

Tape and Reel

0.189 in (4.8 mm)

e3

Rectangular Package

One Surface

10 μH

0.189 in (4.8 mm)

85 °C (185 °F)

710 mA

LPD5010-153MEC

Coilcraft

General Purpose Inductor

High Current Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Silver Palladium Platinum

33 MHz

Dual In-Line

1.19 Ω

2

Ferrite

100 kHz

0.035 in (0.9 mm)

1919

Parallel Connected

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.189 in (4.8 mm)

Rectangular Package

One Surface

15 μH

0.189 in (4.8 mm)

125 °C (257 °F)

590 mA

LPD5010-222MRC

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

108 MHz

Dual In-Line

200 mΩ

2

Ferrite

100 kHz

0.035 in (0.9 mm)

1919

Chip

20 %

Tape and Reel, Embossed Plastic, 7 in

0.189 in (4.8 mm)

e3

Rectangular Package

One Surface

2.2 μH

0.189 in (4.8 mm)

85 °C (185 °F)

1.56 A

LPD5010-332MRC

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

83 MHz

Dual In-Line

270 mΩ

2

Ferrite

100 kHz

0.035 in (0.9 mm)

1919

Chip

20 %

Tape and Reel, Embossed Plastic, 7 in

0.189 in (4.8 mm)

e3

Rectangular Package

One Surface

3.3 μH

0.189 in (4.8 mm)

85 °C (185 °F)

1.34 A

LPD5010-562MRC

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

60 MHz

Dual In-Line

450 mΩ

2

Ferrite

100 kHz

0.035 in (0.9 mm)

1919

Chip

20 %

Tape and Reel, Embossed Plastic, 7 in

0.189 in (4.8 mm)

e3

Rectangular Package

One Surface

5.6 μH

0.189 in (4.8 mm)

85 °C (185 °F)

990 mA

LPD5010-681NRC

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

191 MHz

Dual In-Line

70 mΩ

2

Ferrite

100 kHz

0.035 in (0.9 mm)

1919

Chip

30 %

Tape and Reel, Embossed Plastic, 7 in

0.189 in (4.8 mm)

Rectangular Package

One Surface

680 nH

0.189 in (4.8 mm)

85 °C (185 °F)

2.76 A

LPD5010-682MRC

Coilcraft

General Purpose Inductor

RF Inductor

4

SMT

Yes

Yes

-40 °C (-40 °F)

Matte Tin Over Nickel

55 MHz

Dual In-Line

530 mΩ

2

Ferrite

100 kHz

0.035 in (0.9 mm)

1919

Chip

20 %

Tape and Reel, Embossed Plastic, 7 in

0.189 in (4.8 mm)

e3

Rectangular Package

One Surface

6.8 μH

0.189 in (4.8 mm)

85 °C (185 °F)

850 mA

Fixed Inductors

Fixed inductors, also known as passive inductors, are electronic components that are designed to store energy in a magnetic field. These components are used in a wide range of electronic applications, including power supplies, filters, oscillators, and RF circuits.

Fixed inductors can be classified into several types based on their specific characteristics and applications. Some of the most common types of fixed inductors include:

1. Wire-wound inductors - These inductors consist of a wire coil wound around a core, typically made of a magnetic material such as iron or ferrite. Wire-wound inductors are commonly used in power supplies and filters.

2. Multilayer ceramic inductors - These inductors are made by stacking thin layers of ceramic material with metal electrodes. Multilayer ceramic inductors are commonly used in high-frequency applications due to their high Q factor and small size.

3. Ferrite bead inductors - These inductors consist of a cylindrical or toroidal ferrite bead that is threaded onto a wire or placed over a PCB trace. Ferrite bead inductors are commonly used in EMI suppression and RF filtering applications.

Fixed inductors are available in a wide range of inductance values, sizes, and power ratings. They are typically characterized by their inductance value, tolerance, and frequency response. Inductance is measured in henries (H) or millihenries (mH), and tolerance refers to the allowed deviation from the specified inductance value.