SRP1270

This series is currently available,
but not recommended for new
designs. The newer SRP1265A
series is recommended.
PL
IA
N
T
Features
CO
M
■ Shielded construction
*R
oH
S
■ Unit height of 7.0 mm max.
■ Current up to 41 A
■ RoHS compliant*
SRP1270 Series - Shielded Power Inductors
Electrical Specifications
Bourns Part No.
Inductance
L (μH) ±20 %
I rms
(A)
I sat
(A)
DCR
(mΩ) Max.
SRF
(MHz) Typ.
SRP1270-R32M
0.32
46
65
0.9
95
SRP1270-R47M
0.47
41
65
1.2
85
SRP1270-R68M
0.68
35
60
1.6
65
SRP1270-1R0M
1.0
32
50
2.1
45
SRP1270-1R5M
1.5
27
48
2.6
31
SRP1270-1R8M
1.8
24
41
3.2
31
SRP1270-2R2M
2.2
22
40
4.2
25
SRP1270-3R3M
3.3
18
35
6.6
20
SRP1270-4R7M
4.7
15
30
11.2
15
SRP1270-5R6M
5.6
14
26.5
10.0
13
12
SRP1270-6R8M
6.8
12
21
14.0
SRP1270-8R2M
8.2
11
17
15.5
11
SRP1270-100M
10.0
10
16
16.8
10
Soldering Profile
General Specifications
Test Voltage ....................................1.0 V
Test Frequency ......................... 100 KHz
Reflow Soldering .. 230 °C; 50 sec. max.
Operating Temperature
................................-55 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-55 °C to +125 °C
Resistance to Soldering Heat
............................. +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
Product Dimensions
Temperature (°C)
275
<1> Maximum of 10 seconds
between +255 °C and +260 °C
225
260 °C peak
<1> 255 °C
220 °C
190°C
60 seconds
maximum
175
MAX.
7.0
(.276)
13.7
MAX.
(0.539)
12.9
MAX.
(0.508)
Ramp Down
5 °C/second
6.5
(.256)
MAX.
150 °C
125
13.7
(0.539)
MAX.
120-150 seconds
10 seconds minimum
75
1R2
Ramp Up
4 °C/second maximum
25
0
50
100
150
200
250
300
Time (Seconds)
12.9
MAX.
(0.508)
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)
*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.
7.0
(.276)
DIMENSIONS:
MM
(INCHES)
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car audio systems
SRP1270 Series - Shielded Power Inductors
0.1
20
0
39
52
0.1
0
0
65
0
13
60
0.6
0.4
0.2
0
30
40
50
40
30
20
10
0
50
100
90
80
70
60
1.5
1.0
0.5
0
0
8
16
24
32
100
40
1.5
60
50
1.0
40
30
20
10
0
40
0.5
0
10
20
30
Inductance (μH)
80
70
Temperature Rise (°C)
Inductance (μH)
90
2.0
3.2
2.4
1.6
0.8
0
0
7
7.2
80
5.4
60
3.6
40
1.8
20
0
0
5.3
10.6
15.9
21.2
9.0
6.0
3.0
0
8
60
1.5
6.0
3.0
4.2
8.4
12.6
32.8
50
40
30
20
10
0
41
24
100
90
80
70
60
50
40
30
20
10
0
30
1.0
0.5
0
0
8.2
16.4
24.6
100
90
80
70
60
50
40
30
20
10
0
35
SRP1270-4R7M
6.0
5.0
4.0
3.0
2.0
1.0
0
0
6
12
18
16.8
100
90
80
70
60
50
40
30
20
10
0
21
SRP1270-8R2M
14.0
100
11.2
80
8.4
60
5.6
40
2.8
20
0
0
3.2
6.4
9.6
12.8
0
16
DC Current (A)
12
100
90
80
70
60
50
40
30
20
10
0
16
Temperature Rise (°C)
Inductance (μH)
12.0
4
50
40
30
20
10
0
48
100
90
80
70
DC Current (A)
9.0
0
50
DC Current (A)
SRP1270-100M
0
28
0
0
26.5
DC Current (A)
15.0
21
SRP1270-6R8M
12.0
Temperature Rise (°C)
Inductance (μH)
100
Inductance (μH)
SRP1270-5R6M
9.0
14
40
2.0
DC Current (A)
DC Current (A)
30
DC Current (A)
SRP1270-3R3M
4.0
20
SRP1270-1R8M
2.5
DC Current (A)
SRP1270-2R2M
0
10
10
0
60
DC Current (A)
2.0
DC Current (A)
2.5
0
Inductance (μH)
20
0
Inductance (μH)
0.8
50
40
30
20
0.4
0.2
Inductance (μH)
Inductance (μH)
1.0
10
52
SRP1270-1R5M
2.5
Inductance (μH)
100
90
80
70
Temperature Rise (°C)
SRP1270-1R0M
0
39
0.6
DC Current (A)
DC Current (A)
1.2
26
10
0
65
Temperature Rise (°C)
26
0.2
Temperature Rise (°C)
13
50
40
30
20
Temperature Rise (°C)
0
0.3
0.8
Temperature Rise (°C)
40
0.4
100
90
80
70
60
Temperature Rise (°C)
0.2
0.5
SRP1270-R68M
1.0
Temperature Rise (°C)
60
100
90
80
70
60
Inductance (μH)
80
0.3
Inductance (μH)
0.4
SRP1270-R47M
0.6
Temperature Rise (°C)
Inductance (μH)
100
Temperature Rise (°C)
SRP1270-R32M
0.5
Temperature Rise (°C)
L vs. I Charts
DC Current (A)
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.
3312 - 2 mm
SMD- Shielded
TrimmingPower
Potentiometer
SRP1270
Series
Inductors
Packaging Specifications
2.0 ± 0.5
(.079 ± .020)
330.0
(13.00)
DIA.
THICKNESS
0.10
(.004)
MAX.
13.5 ± 0.5
(0.53 ± .020)
DIA.
EMBOSSED
CAVITY
100.0 ± 2.0
(3.94 ± .079)
13.5 ± 0.5
DIA.
(.53 ± .020)
EMBOSSED
CARRIER
24.0 ± 0.5
(0.95 ± 0.020)
0.50 ± 0.05
(0.020 ± 0.002)
2.0 ± 0.1
(0.079 ± 0.004)
4.0 ± 0.1
(0.157 ± 0.004)
1.5 ± 0.1
(0.059 ± 0.004)
DIA.
14.2 ± 0.1
(0.559 ± 0.004)
6.9 ± 0.1
(0.272 ± 0.004)
1.75 ± 0.1
(.069 ± 0.004)
2.7 ± 0.3
(.106 ± 0.012)
13.2 ± 0.1
(0.520 ± 0.004)
0.15
DIA.
(0.0006)
DIMENSIONS:
20.5 ± 0.1
(0.807 ± 0.004)
MM
(INCHES)
REV. 06/14
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.
24.0 ± 0.3
(0.95 ± 0.012)