TDK Fixed Inductors 257

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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

NLC453232T-180K-PF

TDK

General Purpose Inductor

2

SMT

No

Yes

10

-40 °C (-40 °F)

Tin/Copper

Dual Ended

800 mΩ

1

Ferrite

2.52 MHz

0.126 in (3.2 mm)

1812

Rectangular

10 %

Tape and Reel, Blister Plastic, 7 in

0.177 in (4.5 mm)

e2

Rectangular Package

Wraparound

18 μH

0.126 in (3.2 mm)

105 °C (221 °F)

400 mA

NLC453232T-1R0K-PF

TDK

General Purpose Inductor

2

SMT

No

Yes

10

-40 °C (-40 °F)

Dual Ended

110 mΩ

1

Ferrite

7.96 MHz

0.126 in (3.2 mm)

1812

Rectangular

10 %

Tape and Reel, Blister Plastic, 7 in

0.177 in (4.5 mm)

Rectangular Package

Wraparound

1 μH

0.126 in (3.2 mm)

105 °C (221 °F)

1.05 A

NLC453232T-220K-PF

TDK

General Purpose Inductor

2

SMT

No

Yes

10

-40 °C (-40 °F)

Dual Ended

900 mΩ

1

Ferrite

2.52 MHz

0.126 in (3.2 mm)

1812

Rectangular

10 %

Tape and Reel, Blister Plastic, 7 in

0.177 in (4.5 mm)

Rectangular Package

Wraparound

22 μH

0.126 in (3.2 mm)

105 °C (221 °F)

370 mA

NLC453232T-2R2K-PF

TDK

General Purpose Inductor

2

SMT

No

Yes

10

-40 °C (-40 °F)

Dual Ended

180 mΩ

1

Ferrite

7.96 MHz

0.126 in (3.2 mm)

1812

Rectangular

10 %

Tape and Reel, Blister Plastic, 7 in

0.177 in (4.5 mm)

Rectangular Package

Wraparound

2.2 μH

0.126 in (3.2 mm)

105 °C (221 °F)

850 mA

NLC453232T-330K-PF

TDK

General Purpose Inductor

2

SMT

No

Yes

10

-40 °C (-40 °F)

Dual Ended

1.4 Ω

1

Ferrite

2.52 MHz

0.126 in (3.2 mm)

1812

Rectangular

10 %

Tape and Reel, Blister Plastic, 7 in

0.177 in (4.5 mm)

Rectangular Package

Wraparound

33 μH

0.126 in (3.2 mm)

105 °C (221 °F)

300 mA

NLC453232T-470K-PF

TDK

General Purpose Inductor

2

SMT

No

Yes

10

-40 °C (-40 °F)

Dual Ended

1.9 Ω

1

Ferrite

2.52 MHz

0.126 in (3.2 mm)

1812

Rectangular

10 %

Tape and Reel, Blister Plastic, 7 in

0.177 in (4.5 mm)

Rectangular Package

Wraparound

47 μH

0.126 in (3.2 mm)

105 °C (221 °F)

260 mA

NLC453232T-4R7K-PF

TDK

General Purpose Inductor

2

SMT

No

Yes

10

-40 °C (-40 °F)

Dual Ended

270 mΩ

1

Ferrite

7.96 MHz

0.126 in (3.2 mm)

1812

Rectangular

10 %

Tape and Reel, Blister Plastic, 7 in

0.177 in (4.5 mm)

Rectangular Package

Wraparound

4.7 μH

0.126 in (3.2 mm)

105 °C (221 °F)

650 mA

VLCF4018T-470MR34-2

TDK

General Purpose Inductor

DC-DC Converter

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

760 mΩ

1

Ferrite

100 kHz

0.071 in (1.8 mm)

1616

Rectangular

20 %

Tape and Reel, 7 in

0.156 in (3.95 mm)

Rectangular Package

One Surface

47 μH

0.156 in (3.95 mm)

105 °C (221 °F)

620 mA

VLF12060T-101M1R9

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

152 mΩ

1

Ferrite

100 kHz

0.236 in (6 mm)

4746

Magnetic Shielding

20 %

Tape and Reel

0.472 in (12 mm)

Rectangular Package

Wraparound

100 μH

0.461 in (11.7 mm)

105 °C (221 °F)

2 A

VLF3012AT-150MR41

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

620 mΩ

1

Ferrite

100 kHz

0.047 in (1.2 mm)

1110

Magnetic Shielding

20 %

Tape and Reel

0.11 in (2.8 mm)

Rectangular Package

Wraparound

15 μH

0.102 in (2.6 mm)

105 °C (221 °F)

540 mA

VLF3012AT-2R2M1R0

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

100 mΩ

1

Ferrite

100 kHz

0.047 in (1.2 mm)

1110

Magnetic Shielding

20 %

Tape and Reel

0.11 in (2.8 mm)

Rectangular Package

Wraparound

2.2 μH

0.102 in (2.6 mm)

105 °C (221 °F)

1.3 A

VLF3012AT-4R7MR74

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

190 mΩ

1

Ferrite

100 kHz

0.047 in (1.2 mm)

1110

Magnetic Shielding

20 %

Tape and Reel

0.11 in (2.8 mm)

Rectangular Package

Wraparound

4.7 μH

0.102 in (2.6 mm)

105 °C (221 °F)

980 mA

VLCF5020T-6R8N1R3-1

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

165 mΩ

1

Ferrite

100 kHz

0.079 in (2 mm)

2020

Rectangular

30 %

Tape and Reel, 7 in

0.197 in (5 mm)

Rectangular Package

One Surface

6.8 μH

0.197 in (5 mm)

105 °C (221 °F)

1.8 A

VLF10045T-2R2N7R4

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

10.2 mΩ

1

Ferrite

100 kHz

0.177 in (4.5 mm)

3938

Magnetic Shielding

30 %

Tape and Reel

0.394 in (10 mm)

Rectangular Package

Wraparound

2.2 μH

0.382 in (9.7 mm)

105 °C (221 °F)

7.4 A

VLF10045T-6R8N5R1

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

21.4 mΩ

1

Ferrite

100 kHz

0.177 in (4.5 mm)

3938

Magnetic Shielding

30 %

Tape and Reel

0.394 in (10 mm)

Rectangular Package

Wraparound

6.8 μH

0.382 in (9.7 mm)

105 °C (221 °F)

5.1 A

VLF4012AT-100MR79

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

350 mΩ

1

Ferrite

100 kHz

0.047 in (1.2 mm)

1514

Magnetic Shielding

20 %

Tape and Reel

0.146 in (3.7 mm)

Rectangular Package

Wraparound

10 μH

0.138 in (3.5 mm)

105 °C (221 °F)

790 mA

VLF4012AT-2R2M1R5

TDK

General Purpose Inductor

Power Inductor

2

Yes

Yes

-40 °C (-40 °F)

Dual Ended

87 mΩ

1

100 kHz

20 %

Rectangular Package

Wraparound

2.2 μH

105 °C (221 °F)

1.5 A

VLF4012AT-3R3M1R3

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

120 mΩ

1

Ferrite

100 kHz

0.047 in (1.2 mm)

1514

Magnetic Shielding

20 %

Tape and Reel

0.146 in (3.7 mm)

Rectangular Package

Wraparound

3.3 μH

0.138 in (3.5 mm)

105 °C (221 °F)

1.3 A

VLF4012AT-4R7M1R1

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

160 mΩ

1

Ferrite

100 kHz

0.047 in (1.2 mm)

1514

Rectangular

20 %

Tape and Reel

0.146 in (3.7 mm)

Rectangular Package

Wraparound

4.7 μH

0.138 in (3.5 mm)

105 °C (221 °F)

1.1 A

VLCF5024T-2R7N1R5-2

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

31 mΩ

1

Ferrite

100 kHz

0.094 in (2.4 mm)

2020

Rectangular

30 %

Tape and Reel, 7 in

0.197 in (5 mm)

Rectangular Package

One Surface

2.7 μH

0.197 in (5 mm)

105 °C (221 °F)

3.67 A

VLCF5028T-2R7N1R8-2

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

33 mΩ

1

Ferrite

100 kHz

0.11 in (2.8 mm)

2020

Rectangular

30 %

Tape and Reel, 7 in

0.197 in (5 mm)

Rectangular Package

One Surface

2.7 μH

0.197 in (5 mm)

105 °C (221 °F)

3.53 A

B82477P2104M000

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-55 °C (-67 °F)

Tin Over Nickel

Dual Ended

140 mΩ

1

Ferrite

100 kHz

0.236 in (6 mm)

4949

Rectangular

20 %

Tape and Reel, Blister, 13 in

0.492 in (12.5 mm)

e3

Rectangular Package

Wraparound

100 μH

AEC-Q200

0.492 in (12.5 mm)

150 °C (302 °F)

1.65 A

GLFR1608T100M-LR

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

360 mΩ

1

0.031 in (0.8 mm)

0603

DC Resistance is measured at 30% Tolerance

Rectangular

20 %

Tape and Reel

0.063 in (1.6 mm)

Rectangular Package

Wraparound

10 μH

0.031 in (0.8 mm)

105 °C (221 °F)

400 mA

GLFR1608T220M-LR

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

1 Ω

1

0.031 in (0.8 mm)

0603

DC Resistance is measured at 30% Tolerance

Rectangular

20 %

Tape and Reel

0.063 in (1.6 mm)

Rectangular Package

Wraparound

22 μH

0.031 in (0.8 mm)

105 °C (221 °F)

200 mA

GLFR1608T470M-LR

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

2.3 Ω

1

0.031 in (0.8 mm)

0603

DC Resistance is measured at 30% Tolerance

Rectangular

20 %

Tape and Reel

0.063 in (1.6 mm)

Rectangular Package

Wraparound

47 μH

0.031 in (0.8 mm)

105 °C (221 °F)

100 mA

MLF1005VR12JTD25

TDK

General Purpose Inductor

RF Inductor

2

SMT

Yes

Yes

10

-55 °C (-67 °F)

400 MHz

Dual Ended

590 mΩ

1

Ferrite

25 MHz

0.02 in (0.5 mm)

0402

Inductance is measured at 1 mA

Rectangular

5 %

Tape and Reel, Punched Paper, 7 in

0.039 in (1 mm)

Rectangular Package

Wraparound

120 nH

AEC-Q200

0.02 in (0.5 mm)

125 °C (257 °F)

180 mA

VLS252012CX-4R7M

TDK

General Purpose Inductor

SMT

-40 °C (-40 °F)

210 mΩ

Ferrite

0.047 in (1.2 mm)

1008

Chip

20 %

Tape and Reel, 7 in

0.098 in (2.5 mm)

4.7 μH

0.079 in (2 mm)

105 °C (221 °F)

1.1 A

B82559A5472A019

TDK

General Purpose Inductor

DC-DC Converter

3

SMT

Yes

Yes

-40 °C (-40 °F)

Tin

2 MHz

Dual In-Line

2.7 mΩ

1

Ferrite

100 kHz

0.427 in (10.85 mm)

8077

Rectangular

10 %

Tape and Reel, Blister, 13 in

0.807 in (20.5 mm)

e3

Rectangular Package

Wraparound

4.7 μH

AEC-Q200

0.783 in (19.9 mm)

150 °C (302 °F)

23 A

B82559A0303A016

TDK

General Purpose Inductor

DC-DC Converter

3

SMT

Yes

Yes

-40 °C (-40 °F)

Tin

2 MHz

Dual In-Line

16.5 mΩ

1

Ferrite

100 kHz

0.431 in (10.95 mm)

7468

Rectangular

10 %

Tape and Reel, Blister, 13 in

0.736 in (18.7 mm)

e3

Rectangular Package

Wraparound

30 μH

AEC-Q200

0.681 in (17.3 mm)

150 °C (302 °F)

9.2 A

CLF12555T-100M-D

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

21 mΩ

1

Ferrite

100 kHz

0.217 in (5.5 mm)

4948

DC Resistance measured at 20% Tolerance

Rectangular

20 %

Tape and Reel, Punched Paper, 13 in

0.492 in (12.5 mm)

Rectangular Package

Wraparound

10 μH

AEC-Q200

0.476 in (12.1 mm)

150 °C (302 °F)

3.9 A

CLF12555T-3R3N-D

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

10.3 mΩ

1

Ferrite

100 kHz

0.217 in (5.5 mm)

4948

DC Resistance measured at 30% Tolerance

Rectangular

30 %

Tape and Reel, Punched Paper, 13 in

0.492 in (12.5 mm)

Rectangular Package

Wraparound

3.3 μH

AEC-Q200

0.476 in (12.1 mm)

150 °C (302 °F)

5.7 A

VLBU1007090T-R15L

TDK

General Purpose Inductor

Power Inductor

2

SMT

No

Yes

-40 °C (-40 °F)

Dual Ended

180 μΩ

1

Ferrite

100 kHz

0.354 in (9 mm)

3928

Rectangular

15 %

Tape and Reel, Blister Plastic, 13 in

0.394 in (10 mm)

Rectangular Package

One Surface

150 nH

0.276 in (7 mm)

125 °C (257 °F)

70 A

VLS201610CX-150M-1

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

1.258 Ω

1

Ferrite

1 MHz

0.039 in (1 mm)

0806

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.079 in (2 mm)

Rectangular Package

One Surface

15 μH

0.063 in (1.6 mm)

105 °C (221 °F)

540 mA

VLS252012CX-220M-1

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

955 mΩ

1

Ferrite

1 MHz

0.047 in (1.2 mm)

1008

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.098 in (2.5 mm)

Rectangular Package

One Surface

22 μH

0.079 in (2 mm)

105 °C (221 °F)

560 mA

SPM10054T-R68M-HZ

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

2.09 mΩ

1

Metal

100 kHz

0.213 in (5.4 mm)

4239

Rectangular

20 %

Tape and Reel, Embossed Plastic, 13 in

0.421 in (10.7 mm)

Rectangular Package

Wraparound

680 nH

AEC-Q200

0.394 in (10 mm)

125 °C (257 °F)

32 A

SPM10040T-1R5M-HZ

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

3.85 mΩ

1

Metal

100 kHz

0.157 in (4 mm)

4239

Rectangular

20 %

Tape and Reel, Embossed Plastic, 13 in

0.421 in (10.7 mm)

Rectangular Package

Wraparound

1.5 μH

AEC-Q200

0.394 in (10 mm)

125 °C (257 °F)

20.4 A

SPM10040T-2R2M-HZ

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

7.48 mΩ

1

Metal

100 kHz

0.157 in (4 mm)

4239

Rectangular

20 %

Tape and Reel, Embossed Plastic, 13 in

0.421 in (10.7 mm)

Rectangular Package

Wraparound

2.2 μH

AEC-Q200

0.394 in (10 mm)

125 °C (257 °F)

16.7 A

SLF12565T-151M1R3-H

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

212 mΩ

1

Ferrite

1 kHz

0.256 in (6.5 mm)

4949

DC Resistance is measured at 20%

Rectangular

20 %

Tape and Reel, Embossed Plastic, 13 in

0.492 in (12.5 mm)

Rectangular Package

Wraparound

150 μH

AEC-Q200

0.492 in (12.5 mm)

125 °C (257 °F)

1.4 A

VLS3015CX-2R2M-1

TDK

General Purpose Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

64 mΩ

1

Ferrite

1 MHz

0.059 in (1.5 mm)

1212

Rectangular

20 %

Tape and Reel, Blister Plastic, 7 in

0.118 in (3 mm)

Rectangular Package

Wraparound

2.2 μH

0.118 in (3 mm)

105 °C (221 °F)

2.65 A

SPM10065VT-470M-D

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-55 °C (-67 °F)

Dual Ended

79.8 mΩ

1

Metal Composite

100 kHz

0.256 in (6.5 mm)

4139

DC Resistance is measured at 10% Tolerance

Wound

20 %

Tape and Reel, Embossed Plastic, 13 in

0.413 in (10.5 mm)

Rectangular Package

Wraparound

47 μH

AEC-Q200

0.394 in (10 mm)

155 °C (311 °F)

4 A

WR222230-26M8-G

TDK

General Purpose Inductor

2

Radial

No

-30 °C (-22 °F)

Radial

1.1 Ω

1

1.142 in (29 mm)

100 kHz

0.034 in (0.87 mm)

Circular

Circular Package

Wire

27 μH

0.866 in (22 mm)

70 °C (158 °F)

SPM3012T-R47M-LR

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

34.8 mΩ

1

Metal

100 kHz

0.047 in (1.2 mm)

1312

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.126 in (3.2 mm)

Rectangular Package

L Bend

470 nH

0.118 in (3 mm)

125 °C (257 °F)

4.5 A

SPM4012T-2R2M-LR

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

85.5 mΩ

1

Metal

100 kHz

0.047 in (1.2 mm)

1716

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.173 in (4.4 mm)

Rectangular Package

L Bend

2.2 μH

0.161 in (4.1 mm)

125 °C (257 °F)

3.1 A

SPM4020T-1R5M-LR

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

40 mΩ

1

Metal

100 kHz

0.079 in (2 mm)

1716

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.173 in (4.4 mm)

Rectangular Package

L Bend

1.5 μH

0.161 in (4.1 mm)

125 °C (257 °F)

4.7 A

SPM5020T-4R7M-LR

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-40 °C (-40 °F)

Dual Ended

67.7 mΩ

1

Metal

100 kHz

0.079 in (2 mm)

2120

Rectangular

20 %

Tape and Reel, Embossed Plastic, 7 in

0.213 in (5.4 mm)

Rectangular Package

L Bend

4.7 μH

0.201 in (5.1 mm)

125 °C (257 °F)

3.7 A

CLF10060NIT-221M-D

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-55 °C (-67 °F)

Dual Ended

350 mΩ

1

Ferrite

100 kHz

0.236 in (6 mm)

4039

DC Resistance is measured at 20% Tolerance

Rectangular

20 %

Tape and Reel, Blister Plastic, 13 in

0.398 in (10.1 mm)

Rectangular Package

Wraparound

220 μH

AEC-Q200

0.394 in (10 mm)

150 °C (302 °F)

1.2 A

CLF12577NIT-330M-D

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-55 °C (-67 °F)

Dual Ended

52 mΩ

1

Ferrite

100 kHz

0.303 in (7.7 mm)

5049

DC Resistance is measured at 20% Tolerance

Rectangular

20 %

Tape and Reel, Blister Plastic, 13 in

0.504 in (12.8 mm)

Rectangular Package

Wraparound

33 μH

AEC-Q200

0.492 in (12.5 mm)

150 °C (302 °F)

3.6 A

CLF12577NIT-680M-D

TDK

General Purpose Inductor

Power Inductor

2

SMT

Yes

Yes

-55 °C (-67 °F)

Dual Ended

90 mΩ

1

Ferrite

100 kHz

0.303 in (7.7 mm)

5049

DC Resistance is measured at 20% Tolerance

Rectangular

20 %

Tape and Reel, Blister Plastic, 13 in

0.504 in (12.8 mm)

Rectangular Package

Wraparound

68 μH

AEC-Q200

0.492 in (12.5 mm)

150 °C (302 °F)

2.7 A

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.