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© Coilcraft Inc. 2012

This product may not be used in medical of high

risk applications without prior Coilcraft approval.

Specification subject to change without notice.

Please check out 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

Designer’s Kit C314 contains 10 of each value

Core material Ferrite

Terminations RoHS compliant silver-palladium-platinum-glass frit.

Other terminations available at additional cost.

Weight 142–171mg

Ambient temperature –40°Cto+85°CwithIrmscurrent,+85°Cto

+100°Cwithderatedcurrent

Storage temperature Component:–40°Cto+100°C.

Tapeandreelpackaging:–40°Cto+80°C

Resistance to soldering heat Max three 40 second reflows at

+260°C,partscooledtoroomtemperaturebetweencycles

Temperature Coefficient of Inductance (TCL) +200to+700ppm/°C

Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /

85% relative humidity)

Failures in Time (FIT) / Mean Time Between Failures (MTBF)

One per billion hours / one billion hours, calculated per Telcordia SR-332

Packaging 600/7

″ reel; 2200/13″ reel. Plastic tape: 12 mm wide,

0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth

PCB washing Only pure water or alcohol recommended

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

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