1R5
12.7 ± 0.3
(0.500 ± 0.012)
12.7 ± 0.3
(0.500 ± 0.012)
13.9
(0.547)
MAX.
2.5 ± 0.5
(0.098 ± 0.020)
3.0 ± 0.5
(0.118 ± 0.020)
13.5
(0.531)
MAX.
MAX.
5.0
(.197)
MAX.
5.2
(.205)
15.0
(0.591)
4.5
(.177)
7.0
(.276)
Features
■ Shielded construction
■ Unit height of 5.9 mm
■ Inductance range: 0.22 to 10 μH
■ Current up to 45 A
■ RoHS compliant*
SRP1250 Series - Shielded Power Inductors
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations 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 specifi c applications.
Electrical Specifi cations
Product Dimensions
DIMENSIONS:
MM
(INCHES)
Recommended Layout
Bourns Part No.
Inductance
L (μH) ±20 %
I rms
(A)
I sat
(A)
DCR
(mΩ) Max.
SRP1250-R22M 0.22 45 80 1.0
SRP1250-R36M 0.36 41 75 1.1
SRP1250-R47M 0.47 38 65 1.3
SRP1250-R50M 0.50 36 55 1.5
SRP1250-R56M 0.56 36 55 1.5
SRP1250-R68M 0.68 34 54 1.7
SRP1250-R82M 0.82 31 53 2.3
SRP1250-1R0M 1.00 29 50 2.5
SRP1250-1R2M 1.20 27 49 3.3
SRP1250-1R5M 1.50 23 48 4.1
SRP1250-1R8M 1.80 21 40 4.7
SRP1250-2R2M 2.20 20 32 5.5
SRP1250-2R7M 2.70 17 32 7.3
SRP1250-3R3M 3.30 15 32 9.2
SRP1250-4R7M 4.70 12 27 15.0
SRP1250-6R0M 6.00 9.5 14 10.0
SRP1250-6R8M 6.80 11 21 18.5
SRP1250-7R8M 7.80 10 18 20.5
SRP1250-9R0M 9.00 10 18 22.5
SRP1250-100M 10.0 9 16 25.5
Soldering Profi le
25
75
125
175
225
275
0 50 100 150 200 250 300
Time (Seconds)
Temperature (°C)
120-150 seconds
60 seconds
maximum
260 °C peak
190°C
150 °C
220 °C
Ramp Down
5 °C/second
<1> 255 °C
<1> Maximum of 10 seconds
between +255 °C and +260 °C
Ramp Up
4 °C/second maximum
10 seconds minimum
Electrical Schematic
General Specifi cations
Test Voltage ..................................0.25 V
Test Frequency ......................... 100 KHz
Refl ow 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.
Materials
Core .................................................. Iron
Wire ............................Enameled copper
Terminal ........................................ Cu/Sn
Rated Current ..... Ind. drops 20 % at Isat
Temperature Rise .....40 °C at rated Irms
Packaging ....... 500 pcs. per 13-inch reel
*RoHS COMPLIANT
This series is currently available,
but not recommended for new
designs. The newer SRP1245A
series is recommended.
