SMT POWER INDUCTORS
Toroid - Bobcat Series
Height:
5.5mm Max
Footprint:
12.7mm x 12.7mm Max
Current Rating:
up to 3.8A
Inductance Range:
9.4µH to 439µH
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C
11
Part
9,10
Number
P0144
P0145
P0146
P0147
P0148
P0149
P0150
P0151
P0152
P0153
Inductance
@ Irated
(µH)
9.4
13.3
23
50
75
90
137
200
305
439
Irated
(A )
3.80
3.13
2.43
1.65
1.35
1.23
0.99
0.81
0.65
0.53
DCR
(mΩ)
TYP
27
40
65
121
181
246
387
585
845
1322
MAX
31
46
75
139
208
283
445
673
972
1520
ET
(V-µsec)
15.2
18.8
24.3
37.0
44.3
49.2
59.4
71.3
85.8
99.6
Inductance
@ 0A
DC
(µH ±20%)
10.4
14.6
25
56
83
100
152
220
331
472
100 Gauss
ET
100
(V-µsec)
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°C in typical buck or boost circuits at 250kHz and
with the reference ET applied to the inductor.
3. Total loss in the inductor is 380mW 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 (mW), calculate I
DC
2
X R
N
.
6. For core loss (mW), using frequency (f in Hertz) and operating flux density
(B in Gauss), calculate 6.11 x 10
-18
x B
2.7
x f
2.04
.
7. For flux density (B in Gauss), calculate ET (V-µsec) 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.
9. Optional Tape & Reel packaging can be ordered by adding a "T" suffix to the part
number (i.e. P0144 becomes P0144T). Pulse complies to industry standard tape
and reel specification EIA481.
10. To order RoHS compliant part, add the suffix “NL” to the part number
(i.e. P0144 becomes P0144NL and P0144T becomes P0144NLT).
11. The temperature of the component (ambient plus temperature rise) must be within
the stated operating temperature range.
Mechanical
2X .060
1,52
Schematic
.500 MAX
12,70
.470
11,94
1
R
Suggested Pad Layout
.400
10,16
2
.215 MAX
5,46
.390
9,91
.500 MAX
12,70
.220
5,59
.005/0,13
4 SURFACES
Weight
. . . . . . . . 1.5 grams
Tape & Reel
. . . . . . 500/reel
Tube
. . . . . . . . . . . . 40/tube
Dimensions:
Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
.510
12,95
.945
± .012
24,00
± 0,30
TAPE & REEL LAYOUT
.510
12,95
.630
16,00
USER DIRECTION OF FEED
USA 858 674 8100
•
Germany 49 7032 7806 0
•
Singapore 65 6287 8998
•
Shanghai
86 21 54643211 / 2
•
China 86 755 33966678
•
Taiwan 886 3 4641811
www.pulseeng.com
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