Features
Applications
■ Shielded construction
■ Unit height of 4.2 mm
■ Inductance range: 0.15 to 15 μH
■ Current up to 34 A
■ RoHS compliant*
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car audio systems
SRP1040 Series - Shielded Power Inductors
General Specifications
Electrical Specifications
Test Voltage..................................0.25 V
Test Frequency......................... 100 KHz
Reflow Soldering .. 230 °C; 50 sec. max.
Operating Temperature
Inductance
I rms
(A)
34
32
28
24
26
23
25
23
22
21
20
18
15
15
12
11.5
10
I sat
(A)
DCR
Bourns Part No.
SRP1040-R15M
SRP1040-R20M
SRP1040-R36M
SRP1040-R39M
SRP1040-R47M
SRP1040-R50M
SRP1040-R56M
SRP1040-R68M
SRP1040-R75M
SRP1040-R80M
SRP1040-1R0M
SRP1040-1R2M
SRP1040-1R5M
SRP1040-1R7M
SRP1040-2R2M
SRP1040-2R5M
SRP1040-3R3M
SRP1040-3R9M
SRP1040-4R7M
SRP1040-5R6M
SRP1040-6R8M
SRP1040-8R2M
SRP1040-100M
SRP1040-150M
L (μH) ±±2 ꢀ
0.15
0.20
0.36
0.39
0.47
0.50
0.56
0.68
0.75
0.80
1.0
(mΩ) Max.
40
40
40
32
38
32
36
32
28
30
28
24
20
18
17
14
14
15
13
12
11
1.3
1.0
1.4
1.4
1.6
1.9
1.9
2.4
2.5
3.0
3.5
4.7
7.5
7.5
8.6
8.7
10
12
14
16
24
33
35
57
................................-55 °C to +150 °C
(Temperature rise included)
Storage Temperature
................................-55 °C to +150 °C
Resistance to Soldering Heat
.............................+260 °C for 10 sec.
Materials
Core..................................................Iron
Wire ............................Enameled copper
Terminal........................................Cu/Sn
Rated Current.....Ind. drops 20 % at Isat
Temperature Rise.....40 °C at rated Irms
Packaging....... 900 pcs. per 13-inch reel
1.2
1.5
1.7
2.2
2.5
3.3
3.9
4.7
5.6
6.8
8.2
10
Product Dimensions
4.2
11.8
(0.46ꢀ)
MAX.
(.16ꢀ)
MAX.
4.0
(.1ꢀ7)
MAX.
10.7 0.ꢀ
(0.421 0.020)
9.0
8.0
7.0
6.5
5.0
5.0
5.0
10.ꢀ
(0.413)
MAX.
R68
8.0
9.0
7.0
15
10.0 0.ꢀ
(0.394 0.020)
Soldering Profile
275
260 °C peak
<1>Maximum of 10 seconds
between +255 °C and +260 °C
<1> 255 °C
220 °C
225
175
125
75
2.9 0.ꢀ
(0.114 0.020)
190°C
Ramp Down
5 °C/second
60 seconds
maximum
2.2 0.ꢀ
(0.087 0.020)
150 °C
120-150 seconds
10 seconds minimum
Recommended Layout
Ramp Up
4 °C/second maximum
4.ꢀ
(.177)
12.4
(0.488)
25
0
50
100
150
200
250
300
Time (Seconds)
ꢀ.4
(.213)
Electrical Schematic
MM
(INCHES)
DIMENSIONS:
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.