SELF-LEADED SURFACE
MOUNT INDUCTORS
Materials meet UL 94-VO rating
Fits in half inch high boards for use in
laptop and notebook computers
Frequency range of up to 1 MHz
Patented, low profile, self-leaded design
Electrical Specifications @ 25掳C 鈥?Operating Temperature - 40掳C to +130掳C
Part
Number
P0144
P0145
P0146
P0147
P0148
P0149
P0150
P0151
P0152
P0153
I
DC
(amp )
3.80
3.13
2.43
1.65
1.35
1.23
0.99
0.81
0.65
0.53
Reference Values
L @ DC
L
DC
(碌H)
9.4
13.3
23
50
75
90
137
200
305
439
Control Values
ET
(V-碌sec)
15.2
18.8
24.3
37.0
44.3
49.2
59.4
71.3
85.8
99.6
L
W/O
DC
L
0
卤20%
(碌H)
10.4
14.6
25
56
83
100
152
220
331
472
DCR (nom)
R
N
+15% MAX
(m鈩?
27
40
65
121
181
246
387
585
845
1322
Calculation Data
100 Gauss
ET
100
(V-碌sec)
2.65
3.13
4.10
6.15
7.47
8.19
10.12
12.17
14.94
17.83
1 Amp DC
H
1
(Orsted)
11.95
14.12
18.46
27.69
33.67
36.93
45.61
54.85
67.34
80.37
Notes:
1. The reference inductance at rated DC current is a typical value.
2. Temperature rise is 50掳C in typical buck or boost circuits at 250 KHz and with the
reference ET applied to the inductor.
3. Total loss in the inductor is 380 mWatts for 50掳C temperature rise above ambient.
4. To estimate temperature rise in a given application, determine copper and core
losses, divide by 380 and multiply by 50.
5. For the copper loss, calculate I
DC
2
X R
N
.
6. For core loss, using frequency (f) and operating flux density (B),
calculate 6.11 x 10
-18
x B
2.7
x f
2.04
.
7. For flux density (B), calculate ET (V-碌sec) for the application, divide by
ET
100
from the table, and multiply by 100.
8. Limit the DC bias (H) to 46 orsteds. Calculate H by multiplying H
1
from
the table by I
DC
of the application.
Mechanical
2X .060
1,52
Schematic
1
.500 MAX
12,70
.470
11,94
2
R
Suggested Pad Layout
Dimensions:
Inches
mm
.400
10,16
.215 MAX
5,46
.390
9,91
.500 MAX
12,70
Unless otherwise specified all tolerances are 卤 .010
0,25
.005/0,13
4 SURFACES
US 858 674 8100
鈥?/div>
UK 44 1483 401 700
鈥?/div>
France 33 3 84 35 04 04
鈥?/div>
Singapore 65 287 8998
鈥?/div>
Taiwan 886 2 2698 0228
鈥?/div>
Hong Kong 852 2788 6588
鈥?/div>
http://www.pulseeng.com
21
PC500.B (5/02)
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