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°C — Operating Temperature -40°C to +130°C
Reference Values
Control Values
Calculation Data
L @ DC
LDC
(µH)
L W/O DC
DCR (nom)
RN +15ꢀ MAX
(mΩ)
100 Gauss
1 Amp DC
H1
(Orsted)
Part
Number
IDC
(amp )
ET
(V-µsec)
L0 20ꢀ
ET100
(µH)
(V-µsec)
P0144
P0145
P0146
P0147
P0148
P0149
P0150
P0151
P0152
P0153
3.80
3.13
2.43
1.65
1.35
1.23
0.99
0.81
0.65
0.53
9.4
13.3
23
50
75
15.2
18.8
24.3
37.0
44.3
49.2
59.4
71.3
85.8
99.6
10.4
14.6
25
56
83
100
152
220
331
472
27
40
65
121
181
246
387
585
845
1322
2.65
3.13
4.10
6.15
7.47
11.95
14.12
18.46
27.69
33.67
36.93
45.61
54.85
67.34
80.37
90
8.19
137
200
305
439
10.12
12.17
14.94
17.83
6. For core loss, using frequency (f) and operating flux density (B),
calculate 6.11 x 10-18 x B2.7 x f2.04
7. For flux density (B), calculate ET (V-µsec) for the application, divide by
ET100 from the table, and multiply by 100.
8. Limit the DC bias (H) to 46 orsteds. Calculate H by multiplying H1 from
the table by IDC of the application.
Notes: 1. The reference inductance at rated DC current is a typical value.
2. Temperature rise is 50°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°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 IDC 2X RN.
Schematic
Mechanical
.060
2X
1,52
1
.500
12,70
.470
11,94
MAX
2
.400
10,16
R
Suggested Pad Layout
Inches
mm
Dimensions:
.215
5,46
.010
0,25
MAX
Unless otherwise specified all tolerances are
.390
9,91
.005/0,13
4 SURFACES
.500
MAX
12,70
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21
PC500.B (5/02)