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© Coilcraft Inc. 2013

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.

1812LS (4532) Chip Inductors

Document 106-2

Document 106-2 Revised 01/19/12

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

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

Typical Q vs Frequency

Typical L vs Current

10000

1000

100

10

1

10

DC Current (mA)

100

1000

1000 µH

330 µH

100 µH

33 µH

12 µH

Frequency (MHz)

0.1

60

50

40

30

20

10

0

0.2 0.3 0.4

0.6

12

45

38

610

0.79 MHz

2.5 MHz

1000 µH

560 µH

82 µH

270 µH

33 µH

18 µH

12 µH

Irms Derating

-40

-20

020406080

100

120

Ambient temperature (°C)

120

110

100

90

80

70

60

50

40

30

20

10

0

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

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