*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.
Soldering Profile
Electrical Schematic
Electrical Specifications
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
SRP1040-220M**
SRP1040-330M**
SRP1040-470M**
275
225
175
125
75
25
0
150 °C
<1> Maximum of 10 seconds
between +255 °C and +260 °C
50
L (µH) ±20 %
Ramp Up
4 °C/second maximum
Inductance
120-150 seconds
0.15
0.20
0.36
0.39
0.47
0.50
0.56
0.68
0.75
0.80
1.0
1.2
1.5
1.7
2.2
2.5
3.3
3.9
4.7
5.6
6.8
8.2
10
15
22
33
47
100
190°C
<1> 255 °C
Time (Seconds)
220 °C
150
10 seconds minimum
I rms
11.5
SRP1040 Series - Shielded Power Inductors
9.0
8.0
7.0
6.5
5.0
5.0
5.0
3.5
3.0
2.0
Features
■
■
■
■
■
■
(A)
34
32
28
24
26
23
25
23
22
21
20
18
12
15
12
10
60 seconds
maximum
Shielded construction
Unit height of 4.2 mm
Inductance range: 0.15 µH to 47 µH
Current up to 34 A
Lead free
RoHS compliant*
200
260 °C peak
250
I sat
8.0
9.0
7.0
6.0
5.0
3.0
(A)
40
40
40
32
38
32
36
32
28
30
28
24
20
18
17
14
14
15
13
12
11
Ramp Down
5 °C/second
300
(mΩ) max.
DCR
160
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
62
87
(0.413)
MAX.
(0.114 ± 0.020)
10.5
Test Voltage...................................0.25 V
Test Frequency ..........................100 KHz
Reflow Soldering .....230 ˚C; 50 sec max.
Operating Temperature ..-55 °C to +150 °C
Storage Temperature..-55 °C to +150 °C
Resistance to Soldering Heat
Core...................................................Iron
Wire .............................Enameled copper
Terminal .........................................Cu/Sn
Rated Current.......Ind. drops 20 % at I sat
Temperature Rise..........40 ˚C at rated I rms
Packaging .......900 pcs. per 13-inch reel
General Specifications
Materials
Product Dimensions
Recommended Layout
2.9 ± 0.5
..............................+260 °C for 10 sec.
(0.394 ± 0.020)
10.0 ± 0.5
**Models SRP1040-220M,
-330M & -470M are currently
(0.421 ± 0.020)
R68
available but not recommended
(0.465)
DIMENSIONS:
10.7 ± 0.5
11.8
for new designs.
(Temperature rise included)
(0.488)
MAX.
12.4
(0.087 ± 0.020)
2.2 ± 0.5
(.213)
5.4
(INCHES)
MM
(.177)
4.5
(.157)
(.165)
4.0
4.2
MAX.
MAX.