®
FLAT-PAC™ 3
Low Profile Inductors
Description
• 155C maximum total temperature operation
• Low profile high current inductors
• Inductance range 0.1uh to 15uh
• Design utilizes high temperature powder iron material
with a non-organic binder to eliminate thermal aging
• Current rating up to 34.7Adc (Higher peak currents may
be attained with a greater rolloff, see rolloff curve)
• Frequency range up to 2MHz
Applications
• Computers and portable power devices
• Energy storage applications
• DC-DC converters
• Input - Output filer application
Environmental Data
• Storage temperature range: -40C to +155C
• Operating ambient temperature range: -40C to +155C
(range is application specific).
• Infrared reflow temperature: +260C for 10 seconds
maximum
Part
Number
FP3-R10
FP3-R20
FP3-R47
FP3-R68
FP3-1R0
FP3-1R5
FP3-2R0
FP3-3R3
FP3-4R7
FP3-8R2
FP3-150
Rated
Inductance
µH
0.10
0.20
0.47
0.68
1.00
1.50
2.00
3.30
4.70
8.20
15.0
OCL (1)
µH ± 15%
0.10
0.22
0.44
0.72
1.10
1.50
2.00
3.20
4.70
8.5
14.9
Irms (2)
Amperes
19.0
15.3
10.9
9.72
6.26
5.78
5.40
3.63
3.23
2.91
2.22
Packaging
• Units supplied in tape and reel packaging.
Reel quantity = 1,700 parts per reel.
Isat (3)
Amperes
Approx. 10%
27
16
11.6
9.0
7.4
6.2
5.4
4.3
3.5
2.6
2.0
Isat (4)
Amperes
Approx. 15%
34.7
20.8
14.9
11.6
9.5
8.0
6.9
5.5
4.2
3.4
2.5
DCR
mOhms @ 20°C
(Max.)
1.21
1.88
3.67
4.63
11.2
13.1
15.0
30.0
40.0
74.0
127
K-factor (5)
803
482
344
268
219
185
161
127
105
78
59
1) OCL (Open Circuit Inductance) Test parameters: 100kHz, 0.1Vrms, 0.0Adc
2) DC current for an approximate
∆T
of 40°C without core loss. Derating is
necessary for AC currents. PCB layout, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise.
It is recommended that the temperature of the part not exceed 155°C under
worst case operating conditions verified in the end application.
3) Isat Amperes Peak for approximately 10% rolloff @ 20°C
4) Isat Amperes Peak for approximately 15% rolloff @ 20°C
5) K-factor: Used to determine B p-p for core loss (see graph). B p-p =K*L*∆I
B p-p:(Gauss), K: (K factor from table), L: (Inductance in uH),
∆I
(Peak to peak
ripple current in Amps).
Mechanical Diagrams
(2x)
TOP VIEW
2.8±0.25
SIDE VIEW
1.0 min.
(2x)
7.25
Max
RECOMMENDED PCB PAD LAYOUT
SCHEMATIC
FRONT VIEW
1
1
3.00 Max
FP3
XXX
yww
2
6.70
Max
7.50
2.50 (2x)
2.8±0.25
(2x)
2
4.50 (2x)
Packaging Information
1.5 Dia
min.
0.30
+/-0.05
0.3 Rad
max.
Bo
4.0
2.0
1.5 Dia
+0.1/-0.0
A
1.75
1
7.5
16.0
+/-0.3
2
Ko
Ao
12.0
A
0.5 Rad
typ.
Ao= 6.6mm
Bo= 7.1mm
Ko= 3.2mm
Dimensions in Millimeters
SECTION A-A
Direction of Feed
®
FLAT-PAC™ 3
Low Profile Inductors
PM-4118 7/05
© Cooper Electronic
Technologies 2005
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properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.