SRP1040

PL
IA
N
T
Features
This series is currently available,
but not recommended for new
designs. The newer SRP1038A
series is recommended.
CO
M
■ Shielded construction
*R
oH
S
■ Unit height of 4.2 mm
■ Inductance range: 0.15 to 15 μH
■ Current up to 34 A
■ RoHS compliant*
SRP1040 Series - Shielded Power Inductors
Electrical Specifications
Bourns Part No.
Inductance
L (μH) ±20 %
I rms
(A)
I sat
(A)
DCR
(mΩ) Max.
SRP1040-R15M
0.15
34
40
1.3
SRP1040-R20M
0.20
32
40
1.0
SRP1040-R36M
0.36
28
40
1.4
SRP1040-R39M
0.39
24
32
1.4
SRP1040-R47M
0.47
26
38
1.6
SRP1040-R50M
0.50
23
32
1.9
SRP1040-R56M
0.56
25
36
1.9
SRP1040-R68M
0.68
23
32
2.4
SRP1040-R75M
0.75
22
28
2.5
SRP1040-R80M
0.80
21
30
3.0
SRP1040-1R0M
1.0
20
28
3.5
SRP1040-1R2M
1.2
18
24
4.7
SRP1040-1R5M
1.5
15
20
7.5
SRP1040-1R7M
1.7
15
18
7.5
SRP1040-2R2M
2.2
12
17
8.6
SRP1040-2R5M
2.5
11.5
14
8.7
SRP1040-3R3M
3.3
10
14
10
SRP1040-3R9M
3.9
9.0
15
12
SRP1040-4R7M
4.7
8.0
13
14
SRP1040-5R6M
5.6
7.0
12
16
SRP1040-6R8M
6.8
6.5
11
24
SRP1040-8R2M
8.2
5.0
8.0
33
SRP1040-100M
10
5.0
9.0
35
SRP1040-150M
15
5.0
7.0
57
General Specifications
Test Voltage ..................................0.25 V
Test Frequency ......................... 100 KHz
Reflow 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 ....... 900 pcs. per 13-inch reel
Product Dimensions
4.2
(.165)
MAX.
4.0
(.157)
MAX.
11.8
MAX.
(0.465)
10.7 ± 0.5
(0.421 ± 0.020)
10.5
(0.413)
MAX.
R68
10.0 ± 0.5
(0.394 ± 0.020)
Soldering Profile
Temperature (°C)
275
<1> Maximum of 10 seconds
between +255 °C and +260 °C
225
260 °C peak
<1> 255 °C
2.9 ± 0.5
(0.114 ± 0.020)
220 °C
190°C
60 seconds
maximum
175
Ramp Down
5 °C/second
2.2 ± 0.5
(0.087 ± 0.020)
150 °C
125
120-150 seconds
10 seconds minimum
75
Recommended Layout
Ramp Up
4 °C/second maximum
25
0
50
100
4.5
(.177)
12.4
(0.488)
150
200
250
300
Time (Seconds)
5.4
(.213)
Electrical Schematic
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.
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.
MM
(INCHES)
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communications equipment
• Camcorders
• LCD TVs
• Car audio systems
SRP1040 Series - Shielded Power Inductors
L vs. I Charts
0
27
36
10
0
40
0
4
8
12
16
40
0.12
20
0
22.8
0
38
30.4
0.75
0.60
0.45
50
40
30
0.30
0.15
0
20
10
0
4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
70
60
0.5
0.4
0.3
50
40
30
0.2
0.1
0
20
10
0
40
4
8
12
16
60
0.5
0.4
50
40
0.3
30
0.2
20
0.1
0
10
0
32
0.4
0.2
0
20
10
0
33
9
12 15
20
24
28
SRP1040-1R5M
2.0
1.6
1.2
0.8
50
40
30
0.4
0
14
27
30
1.0
0.8
0.6
50
40
30
0.4
0.2
0
20
10
0
30
16
18
20
20
10
0
22
12
15
18
60
0.28
40
0.14
20
7.2
14.4
21
24
27
80
1.8
60
1.2
40
0.6
20
0
8
12
28.8
0
36
SRP1040-R75M
100
1.2
80
0.9
60
0.6
40
20
0
0
6.2
12.4
18.6
24.8
0
31
SRP1040-1R2M
3
100
2.4
80
1.8
60
1.2
40
0.6
20
0
0
4.4
8.8
13.2
17.6
0
22
DC Current (A)
2.4
DC Current (A)
21.6
0.3
16
0
20
SRP1040-2R2M
4.0
100
4
100
0.42
1.5
SRP1040-1R7M
0
36
80
0
100
90
70
60
9
32
DC Current (A)
80
3
Inductance (μH)
70
60
12
24
1.4
1.2
6
28
SRP1040-R50M
DC Current (A)
Temperature Rise (°C)
Inductance (μH)
80
10
21
SRP1040-1R0M
3
100
90
2.8
2.4
DC Current (A)
18
24
0.56
100
90
50
40
30
6
20
DC Current (A)
1.0
0.8
0.6
DC Current (A)
8
36
Inductance (μH)
0.6
6
32
70
60
3
16
0
Inductance (μH)
70
Inductance (μH)
0.7
Temperature Rise (°C)
Inductance (μH)
90
80
4
28
80
2.0
1.8
1.6
100
2
24
1.4
1.2
0
SRP1040-R80M
0
12
DC Current (A)
0.9
0.8
4.0
3.6
3.2
20
SRP1040-R68M
DC Current (A)
16
8
0.7
Inductance (μH)
70
60
12
100
90
0.7
0.6
2.0
1.8
1.6
Inductance (μH)
80
Temperature Rise (°C)
Inductance (μH)
100
90
1.05
0.90
8
4
DC Current (A)
80
0
1.20
4
0
DC Current (A)
SRP1040-R56M
0
36
0.8
DC Current (A)
1.0
32
Inductance (μH)
60
0.24
1.50
1.35
28
Temperature Rise (°C)
0.36
Inductance (μH)
Inductance (μH)
Temperature Rise (°C)
80
15.2
24
SRP1040-R47M
1.0
0.9
100
0.48
7.6
20
DC Current (A)
SRP1040-R39M
0
20
10
0
40
20
0
DC Current (A)
0.6
0.2
0.1
0
30
0.05
Temperature Rise (°C)
18
50
40
30
40
Temperature Rise (°C)
9
0.5
0.4
0.3
50
0.1
Temperature Rise (°C)
0
0
45
70
60
Temperature Rise (°C)
20
80
0.7
0.6
60
Temperature Rise (°C)
0.06
0.8
70
0.15
100
90
Temperature Rise (°C)
40
80
Temperature Rise (°C)
0.12
1.0
0.9
Inductance (μH)
60
SRP1040-R36M
90
Temperature Rise (°C)
0.18
100
0.2
Inductance (μH)
80
Temperature Rise (°C)
Inductance (μH)
0.24
SRP1040-R20M
0.25
100
100
3.6
90
3.2
2.8
2.4
80
2.0
1.6
1.2
0.8
50
40
30
70
60
0.4
0
0
2
4
6
8
20
10
0
10 12 14 16 18 20 22 24
Temperature Rise (°C)
SRP1040-R15M
0.3
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
SRP1040
Series
Inductors
L vs. I Charts
40
0.8
20
0
0.8
0
0
16
12
0
2
4
6
14
12
SRP1040-5R6M
90
13.5
90
6.4
5.6
4.8
80
12.0
10.5
9.0
80
4.0
3.2
2.4
1.6
50
40
30
7.5
6.0
4.5
3.0
50
40
30
70
60
0.8
0
4
6
8
10
12
20
10
0
16
Inductance (μH)
7.2
Temperature Rise (°C)
15.0
2
0
1
2
3
4
80
7.5
6.0
4.5
3.0
50
40
30
70
60
1.5
0
4
5
6
DC Current (A)
5
6
7
8
9
20
3
6
7
8
20
10
0
9
9
12
SRP1040-6R8M
12
100
90
10
80
8
70
60
6
50
40
4
30
20
10
2
0
0
4
6
0
16
12
SRP1040-150M
25
100
100
90
80
9.0
70
7.5
60
6.0
50
40
4.5
30
3.0
20
1.5
0
0
1
2
3
4
5
6
DC Current (A)
0
15
DC Current (A)
10.5
Inductance (μH)
12.0
10.5
9.0
3
40
1.2
SRP1040-100M
12.0
Temperature Rise (°C)
90
2
20
10
0
10 11 12
1.5
0
100
13.5
1
2.4
DC Current (A)
SRP1040-8R2M
0
60
0
100
70
60
DC Current (A)
15.0
3.6
DC Current (A)
100
0
80
0
Inductance (μH)
SRP1040-4R7M
8.0
Inductance (μH)
10
4.8
DC Current (A)
DC Current (A)
Inductance (μH)
8
20
10
0
16
7
8
10
0
9
90
80
20
Inductance (μH)
8
50
40
30
Temperature Rise (°C)
4
4.0
3.2
2.4
1.6
70
60
Temperature Rise (°C)
0
80
Temperature Rise (°C)
1.6
6.4
5.6
4.8
100
Temperature Rise (°C)
60
90
SRP1040-3R9M
6.0
100
7.2
70
15
60
10
50
40
30
5
20
0
0
1.4
2.8
4.2
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.
5.6
10
0
7.0
Temperature Rise (°C)
2.4
Inductance (μH)
80
Temperature Rise (°C)
Inductance (μH)
3.2
SRP1040-3R3M
8.0
Inductance (μH)
100
Temperature Rise (°C)
SRP1040-2R5M
4.0
SRP1040 Series - Shielded Power 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.
21.0 ± 0.8
(.827 ± .031)
EMBOSSED
CAVITY
75.0 ± 2.0
(2.96 ± 0.08)
13.0 ± 0.5
DIA.
(.512 ± .020)
EMBOSSED
CARRIER
26.0 - 0.00
(1.02 - 0.00)
0.35 ± 0.05
(0.014 ± 0.020)
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.
11.8 ± 0.1
(0.465 ± 0.004)
4.5 ± 0.1
(0.177 ± 0.004)
2.2 ± 0.3
(.087 ± 0.012)
0.15
DIA.
(0.0006)
1.75 ± 0.1
(.069 ± 0.004)
24.0 ± 0.3
(0.95 ± 0.012)
16.0 ± 0.1
(0.629 ± 0.004)
10.5 ± 0.1
(0.413 ± 0.004)
DIMENSIONS:
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.