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Technical Data 10338

RL1218 Series

Unshielded radial leaded drum core inductors

Dimensions - mm

Product specifications

OCL¹

(μH)±10%

I

rms

2

(amps)

I

sat

3

(amps)

DCR (Ω)

@ 20°C max.

SRF

(MHz) typ.

RL1218-4R7-R

4.7±20%

5.65

15.0

0.017

34

RL1218-8R2-R

8.2±20%

4.75

10.7

0.025

25

RL1218-100-R

10

4.61

10.2

0.026

21

RL1218-150-R

15

4.05

8.00

0.034

11

RL1218-220-R

22

3.64

6.60

0.042

8

RL1218-270-R

27

3.44

5.97

0.047

6

RL1218-330-R

33

3.27

5.45

0.052

5

RL1218-101-R

100

2.31

3.16

0.102

3

RL1218-151-R

150

1.89

2.56

0.159

3

RL1218-181-R

180

1.64

2.34

0.211

3

RL1218-221-R

220

1.53

2.10

0.241

2

RL1218-331-R

330

1.25

1.73

0.366

2

RL1218-561-R

560

0.968

1.33

0.606

1

RL1218-102-R

1000

0.677

0.992

1.23

1

RL1218-152-R

1500

0.597

0.809

1.59

0.81

RL1218-472-R

4700

0.322

0.457

5.46

0.40

RL1218-562-R

5600

0.305

0.418

6.11

0.40

RL1218-682-R

6800

0.263

0.379

8.20

0.36

RL1218-123-R

12,000

0.201

0.286

14.1

0.28

1. Open Circuit Inductance (OCL) Test Parameters: 10kHz, 0.1V

2. I

loss. Derating is necessary for AC currents. PCB layout, trace thickness and

width, air-flow, and proximity of other heat generating components will affect

the temperature rise. It is recommended that the temperature of the part

not exceed 125°C under worst case operating conditions verified in the end

application.

3. I

4. Part Number Definition: RL1218-yyy-R

- RL1218 = Product code and size

- yyy= Inductance value in μH, R = decimal point,

if no R is present then third character = number of zeros.

- “-R” suffix = RoHS compliant

Top view

Side view

Schematic

Recommended pad layout

Part marking: 4xxx

wly R

4 = RL1218

xxx = inductance in µH, R = decimal point; if there is no “R” then third character = number of zeros

wly = date code, R = revision level

* Lead length is after the components are trimmed from the packaging tape roll.