*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.
SRP1250-R36M
SRP1250-R47M
SRP1250-R50M
SRP1250-R56M
SRP1250-R68M
SRP1040-R82M
SRP1250-1R0M
SRP1250-1R2M
SRP1250-1R5M
SRP1250-1R8M
SRP1250-2R2M
SRP1250-2R7M
SRP1250-3R3M
SRP1250-4R7M
SRP1250-6R0M
SRP1250-6R8M
SRP1250-7R8M
SRP1250-9R0M
SRP1250-100M
275
225
175
125
75
25
0
150 °C
<1> Maximum of 10 seconds
between +255 °C and +260 °C
50
Ramp Up
4 °C/second maximum
Inductance
120-150 seconds
L (µ µ H)
0.36
0.47
0.50
0.56
0.68
0.82
1.00
1.20
1.50
1.80
2.20
2.70
3.30
4.70
6.00
6.80
7.80
9.00
10.0
100
190°C
<1> 255 °C
Time (Seconds)
220 °C
150
I rms
10 seconds minimum
SRP1250 Series - Shielded Power Inductors
9.5
Features
(A)
41
38
36
36
34
31
29
27
23
21
20
17
15
12
11
10
10
9
Shielded construction
Unit height of 5.9 mm
Inductance range: 0.36 µH to 10 µH
Current up to 41 A
RoHS compliant*
60 seconds
maximum
200
260 °C peak
I sat
(A)
75
65
55
55
54
53
50
49
48
40
32
32
32
27
14
21
18
18
16
250
Ramp Down
5 °C/second
(mΩ Ω ) max.
DCR
15.0
10.0
18.5
20.5
22.5
25.5
1.1
1.3
1.5
1.5
1.7
2.3
2.5
3.3
4.1
4.7
5.5
7.3
9.2
300
(0.531)
Applications
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...............................................Ferrite
Wire .............................Enameled copper
Terminal .........................................Cu/Sn
Rated Current.......Ind. drops 20 % at I sat
Temperature Rise..........40 ˚C at rated I rms
Packaging .......500 pcs. per 13-inch reel
MAX.
(0.118 ± 0.020)
13.5
General Specifications
Materials
Product Dimensions
Recommended Layout
3.0 ± 0.5
Input/output of DC/DC converters
Power supplies for:
•
•
•
•
..............................+260 °C for 10 sec.
Portable communications equipment
Camcorders
LCD TVs
Car audio systems
(0.500 ± 0.012)
12.7 ± 0.3
(0.500 ± 0.012)
DIMENSIONS:
1R5
(0.547)
12.7 ± 0.3
13.9
(Temperature rise included)
(0.591)
MAX.
15.0
(0.098 ± 0.020)
2.5 ± 0.5
(.276)
(INCHES)
7.0
MM
(.177)
4.5
(.232)
(.205)
5.2
5.9
MAX.
MAX.