Features
Applications
■ Shielded construction
■ Unit height of 7.0 mm max.
■ Current up to 41 A
■ RoHS compliant*
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car audio systems
SRP1270 Series - Shielded Power Inductors
General Specifications
Electrical Specifications
Test Voltage....................................1.0 V
Test Frequency......................... 100 KHz
Reflow Soldering .. 230 °C; 50 sec. max.
Operating Temperature
Inductance
I rms
(A)
I sat
(A)
DCR
SRF
Bourns Part No.
SRP1270-R32M
SRP1270-R47M
SRP1270-R68M
SRP1270-1R0M
SRP1270-1R5M
SRP1270-1R8M
SRP1270-2R2M
SRP1270-3R3M
SRP1270-4R7M
SRP1270-5R6M
SRP1270-6R8M
SRP1270-8R2M
SRP1270-100M
L (μH) ±±2 ꢀ
0.32
0.47
0.68
1.0
(mΩ) Max.
(MHz) Typ.
46
41
35
32
27
24
22
18
15
14
12
11
10
65
65
60
50
48
41
40
35
30
26.5
21
17
16
0.9
1.2
1.6
2.1
2.6
3.2
4.2
6.6
11.2
10.0
14.0
15.5
16.8
95
85
65
45
31
31
25
20
15
13
12
11
10
................................-55 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-55 °C to +125 °C
Resistance to Soldering Heat
1.5
1.8
2.2
3.3
4.7
5.6
6.8
8.2
.............................+260 °C for 10 sec.
Materials
Core..................................................Iron
Wire ............................Enameled copper
Adhesive.............................. Epoxy resin
Terminal....................................Ag/Ni/Sn
Rated Current.....Ind. drops 20 % at Isat
Temperature Rise.....40 °C at rated Irms
Packaging....... 400 pcs. per 13-inch reel
10.0
Soldering Profile
Product Dimensions
275
260 °C peak
MAX.
7.0
(.276)
<1>Maximum of 10 seconds
between +255 °C and +260 °C
<1> 255 °C
220 °C
13.7
(0.539)
MAX.
225
175
6.5
(.256)
MAX.
12.9
(0.508)
MAX.
190°C
Ramp Down
5 °C/second
60 seconds
maximum
150 °C
13.7
(0.539)
MAX.
125
75
120-150 seconds
10 seconds minimum
1R2
Ramp Up
4 °C/second maximum
25
0
50
100
150
200
250
300
12.9
MAX.
(0.508)
Time (Seconds)
3.0 0.5
(0.118 0.020)
Electrical Schematic
2.5 0.5
(0.098 0.020)
Recommended Layout
4.5
(.177)
15.0
(0.591)
7.0
(.276)
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.
Customers should verify actual device performance in their specific applications.