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© Coilcraft Inc. 2014

This product may not be used in medical or high

risk applications without prior Coilcraft approval.

Specification subject to change without notice.

Please check web site for latest information.

Chip Inductors – 1812CS Series (4532)

Document 105-2

Document 105-2 Revised 01/11/12

Typical Q vs Frequency

Typical L vs Frequency

I

I

J

H

A

B

overall

F

G

E

terminal

F

C

D

Terminal wraparound:

approx 0.015/0,38 both ends

Recommended

Land Pattern

Pick and

place

material

A

B

C

D

max

max

max

ref

E

F

G

H

I

J

0.195 0.150 0.135 0.070 0.100 0.025 0.128 0.120 0.045 0.118 inches

4,95

3,81

3,43

1,78

2,54

0,64

3,25

3,05

1,14

3,00 mm

0

10

20

30

40

110

1000

100

Frequency (MHz)

1.8 µH

8.2 µH

3.9 µH

15.0 µH

22.0 µH

33.0 µH

80

70

60

50

40

30

20

10

0

110

100

Frequency (MHz)

1.8 µH

3.9 µH

8.2 µH

15.0 µH

22.0 µH

33.0 µH

-40

-20

020406080

100

140

120

Ambient temperature (°C)

120

110

100

90

80

70

60

50

40

30

20

10

0

Irms Derating

Note: Height dimension (C) is before optional solder application. For maximum

height dimension including solder, add 0.006 in / 0,152 mm.