Document 252-1
Power Chip Inductors - 1812PS Series
Coilcraft’s new 1812PS Series is designed to be an
economical alternative to larger and more costly shielded
power inductors.
Only 3,81 mm high, they are ideal for applications
requiring magnetic shielding, the smallest possible size
and lowest cost. Typical uses include notebook comput-
ers, PC cards, wireless communication and handheld
devices.
The specially designed ferrite cover provides magnetic
shielding and the best possible surface for pick and
place handling.
Coilcraft
Designer’s Kit C143
contains six samples each
of the standard parts shown. To order, contact Coilcraft or
visit
http://order.coilcraft.com.
Part
L ± 10%
number
1
(µH)
1812PS-102K_
1.0
1812PS-152K_
1.5
1812PS-222K_
2.2
1812PS-272K_
2.7
1812PS-332K_
3.3
1812PS-392K_
3.9
1812PS-472K_
4.7
1812PS-562K_
5.6
1812PS-682K_
6.8
1812PS-103K_
10
1812PS-153K_
15
1812PS-223K_
22
1812PS-333K_
33
1812PS-393K_
39
1812PS-473K_
47
1812PS-683K_
68
1812PS-823K_
82
1812PS-104K_
100
1812PS-124K_
120
1812PS-154K_
150
1812PS-224K_
220
1812PS-334K_
330
1812PS-474K_
470
1812PS-564K_
560
1812PS-684K_
680
1812PS-824K_
820
1812PS-105K_ 1000
1
2
2
DCR
4
Q min
max
@ 1 MHz (Ohms)
35
0.05
38
0.06
38
0.07
40
0.08
40
0.09
40
0.11
40
0.11
40
0.12
40
0.13
40
0.17
40
0.26
40
0.33
40
0.40
48
0.56
50
0.87
50
1.08
55
1.25
60
1.32
60
1.45
60
2.20
60
2.65
60
4.85
50
5.85
40
6.10
40
6.60
30
7.35
28
10.00
2
3
2
SRF
5
typ
(MHz)
685
460
270
265
225
170
165
155
140
120
100
45
30
30
28
17
17
14
12
11
7
5.5
4.0
2.6
2.3
1.8
1.8
2
2
Isat
6
2
Irms
7
(A)
(A)
2.50 2.70
2.00 2.60
1.70 2.40
1.40 2.30
1.40 2.30
1.20 2.20
1.15 2.10
1.10 2.10
1.00 1.90
0.90 1.70
0.70 1.45
0.54 1.20
0.46 1.10
0.40 1.00
0.35 0.80
0.32 0.67
0.28 0.65
0.27 0.65
0.23 0.60
0.20 0.51
0.17 0.47
0.15 0.31
0.12 0.31
0.11 0.28
0.10 0.28
0.09 0.25
0.08 0.22
1. When ordering, please specify
packaging
code:
1812PS-105KC
Packaging: C
= 7″ machine-ready reel. EIA-481 embossed plastic
tape (600 parts per full reel).
B
= Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge),
use code letter C instead.
D
= 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (2200 parts
per full reel).
2. Inductance measured at 100 kHz, 0.1 Vrms, using Coilcraft SMD-A
fixture in Agilent/HP 4263B impedance analyzer.
3. Q measured on Agilent/HP 4291 with Agilent/HP 16193 test fixture.
4. DCR measured on micro-ohmmeter and Coilcraft CCF840 test fixture.
5. SRF measured using Agilent/HP 8753D network analyzer and
Coilcraft SMD-D test fixture.
6. DC current at which the inductance drops 10% (typ) from its value
without current.
7. Average current for a 40°C rise above 25°C ambient.
8. Operating temperature range -40°C to +85°C.
9. Electrical specifications at 25°C.
See Qualification Standards section for environmental and test data.
Specifications subject to change without notice.
Document 252-1
Revised 03/31/03
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