SRP1055

PL
IA
NT
Features
This series is OBSOLETEANDNOT
recommended for new designs.
*R
oH
S
CO
M
Shielded construction
Unit height of 5.5 mm
Inductance range: 0.36 μH to 8.8 μH
Current up to 28 A
RoHS compliant*
SRP1055 Series - Shielded Power Inductors
Electrical Specifications
Inductance
L (μH)
Bourns Part No.
SRP1055-R36Y
SRP1055-R80M
SRP1055-1R4M
SRP1055-2R2M
SRP1055-3R2M
SRP1055-4R3M
SRP1055-5R7M
SRP1055-7R2M
SRP1055-8R8M
0.36
0.80
1.40
2.20
3.20
4.30
5.70
7.20
8.80
±
±
±
±
±
±
±
±
±
30
20
20
20
20
20
20
20
20
%
%
%
%
%
%
%
%
%
I rms
(A)
I sat
(A)
DCR
(mΩ) max.
28.0
20.0
16.0
12.0
11.0
10.0
7.6
7.0
6.0
26.0
18.0
14.0
10.0
9.0
8.0
7.0
6.2
5.6
1.7
2.5
3.2
5.8
7.2
8.5
13.2
15.5
17.2
Materials
Core .........................................Ferrite ER
Wire .............................Enameled copper
Terminal.....................................Cu/Ni/Sn
Rated Current.......Ind. drops 25 % at I sat
Temperature Rise..........40 ˚C at rated I rms
Packaging .......300 pcs. per 13-inch reel
E
T
E
L
O
S
B
O
Inductance vs. DC Superposition Characteristics
10.0
Product Dimensions
8R8
9.35 ± 0.30
(0.368 ± 0.012)
7R2
5R7
6.0
5.50 ± 0.30
(0.216 ± 0.012)
11.00 ± 0.30
(0.422 ± 0.012)
1R4
Inductance (μH)
8.0
4R3
4.0
3R2
2.0
General Specifications
Test Voltage........................................1 V
Test Frequency ..........................100 KHz
Reflow Soldering .....230 ˚C; 50 sec max.
Operating Temperature ..-55 °C to +150 °C
(Temperature rise included)
Storage Temperature..-55 °C to +150 °C
Resistance to Soldering Heat
..............................+260 °C for 10 sec.
TYP.
2.10
(0.083)
TYP.
2.0
TYP.
(0.079)
1.00
(0.039)
6.0
TYP.
(0.236)
1.50
TYP.
(0.059)
0
2.5
5
7.5
10
DC Current (A)
Inductance (μH)
3.0
Recommended Layout
2R2
2.0
3.0
(0.118)
1R4
1.0
0
3.0
(0.118)
6.0
(0.236)
R80
R36
0.0
5.8
(.228)
10
20
DC Current (A)
30
40
3.0
(0.118)
3.0
(0.118)
2.8
(0.110)
2.0
(0.079)
1.4
(0.055)
10.0
(0.394)
Electrical Schematic
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Applications
Input/output of DC/DC converters
Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car audio systems
SRP1055 Series - Shielded Power Inductors
Soldering Profile
Temperature (°C)
275
<1> Maximum of 10 seconds
between +255 °C and +260 °C
225
190°C
175
220 °C
Ramp Down
5 °C/second
60 seconds
maximum
150 °C
125
120-150 seconds
75
25
260 °C peak
<1> 255 °C
10 seconds minimum
E
T
E
L
O
S
B
O
Ramp Up
4 °C/second maximum
0
50
100
150
200
250
300
Time (Seconds)
Packaging Specifications
2.0 ± 0.5
(.079 ± .020)
330.0
(13.00)
DIA.
THICKNESS
0.10
(.004)
MAX.
13.0 ± 0.5
(.512 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
50.0 - 0
(1.969 -0)
13.0 ± 0.5
DIA.
(.512 ± .020)
EMBOSSED
CARRIER
26.0 + 0
(1.024 +0)
16.0
(0.629)
4.0
(0.157)
END
1R4
1R4
1R4
NO COMPONENT
160
(6.299)
MIN.
1R4
NO COMPONENT
400
(15.748)
COMPONENTS
USER DIRECTION OF FEED
DIMENSIONS:
REV. 10/15
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
START
MM
(INCHES)
MIN.
EMBOSSED
CAVITY