2R2
1725
12.4
(0.488)
10.7 ± 0.5
(0.421 ± 0.020)
11.8
(0.465) MAX.
MAX.
2.2 ± 0.5
(0.087 ± 0.020)
2.9 ± 0.5
(0.114 ± 0.020)
4.5
(.177)
10.0 ± 0.5
(0.394 ± 0.020)
10.5
(0.413)
MAX.
5.4
(.213)
4.0
(.157)
MAX.
4.2
(.165)
Features
n Shielded construction
n Unit height of 4.2 mm
n Inductance range: 0.15 to 15 μH
n Current up to 34 A
n RoHS compliant*
SRP1040 Series - Shielded Power Inductors
Electrical Specications
Product Dimensions
DIMENSIONS: MM
(INCHES)
Recommended Layout
Soldering Prole
25
75
125
175
225
275
050100 150200 25
03
00
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 secondsminimum
25
75
125
175
225
275
050100 150200 250300
Time (Seconds)
Temperature(°C)
120-150seconds
60 seconds
maximum
150 °C
183 °C
170 °C
Ramp Down
5 °C/second
<1> 245 °C
<1>5 seconds maximum
at +245 °C
Ramp Up
4 °C/second maximum
10 secondsminimum
4.5
(.177)
1.5
(.060)
2.5
(.099)
Electrical Schematic
General Specications
Test Voltage .......................................1 V
Test Frequency ......................... 100 KHz
Re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 ....... 900 pcs. per 13-inch reel
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
This series is currently available,
but not recommended for new
designs. The newer SRP1038A
series is recommended.
2R2
1725
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of
this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
0
04 81216202428323640
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-R36M
Temperature Rise (°C)
0
03 6912 15 18 21 24 27 30 33
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-R68M
Temperature Rise (°C)
0
02 46810121416182220 24
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-2R2M
Temperature Rise (°C)
0
36 9121518212427 30
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-1R0M
Temperature Rise (°C)
0
04 81216202428323640
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-R47M
Temperature Rise (°C)
0
46810 12 14 16 18 20 22 24 26 28 30 32 34 36 38
0.15
0.30
0.45
0.60
0.75
0.90
1.05
1.20
1.35
1.50
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-R56M
Temperature Rise (°C)
0
02 4681014
12 16 2018 22
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-1R5M
Temperature Rise (°C)
0
01 23456789 1110 12
1.5
3.0
4.5
6.0
7.5
9.0
10.5
12.0
13.5
15.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-5R6M
Temperature Rise (°C)
0
02468101216
0.8
1.6
2.4
3.2
4.0
4.8
5.6
6.4
7.2
8.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-4R7M
Temperature Rise (°C)
0
02 468101214 16
0.8
1.6
2.4
3.2
4.0
4.8
5.6
6.4
7.2
8.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-3R3M
Temperature Rise (°C)
0
036912 15
1.2
2.4
3.6
4.8
6.0
0
20
40
60
80
100
Inductance (μH)
DC Current (A)
SRP1040-3R9M
Temperature Rise (°C)
0
01 23456789
1.5
3.0
4.5
6.0
7.5
9.0
10.5
12.0
13.5
15.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-8R2M
Temperature Rise (°C)
0
04 81216202428323640
0.05
0.1
0.15
0.2
0.25
0
10
Inductance (μH)
DC Current (A)
SRP1040-R20M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
0123456789
1.5
3.0
4.5
6.0
7.5
9.0
10.5
12.0
0
10
Inductance (μH)
DC Current (A)
SRP1040-100M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
01.2 2.43.6 4.86.0
7
14
21
28
35
0
10
Inductance (μH)
DC Current (A)
SRP1040-220M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
00.6 1.21.8 2.43.0
14
28
42
56
70
0
10
Inductance (μH)
DC Current (A)
SRP1040-470M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
04
8121620242832
0.2
0.1
0.3
0.5
0.4
0.6
0.7
0.8
0.9
1.0
0
10
Inductance (μH)
DC Current (A)
SRP1040-R80M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
01.4 2.8 4.25.6 7.0
5
10
15
20
25
0
10
Inductance (μH)
DC Current (A)
SRP1040-150M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
01 234 5
10
20
30
40
50
0
10
Inductance (μH)
DC Current (A)
SRP1040-330M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
0918 27 36 45
0.06
0.12
0.18
0.24
0.3
0
Inductance (μH)
DC Current (A)
SRP1040-R15M
Temperature Rise (°C)
20
40
60
80
100
0
06.2 12.4 18.6 24.831
0.3
0.6
0.9
1.2
1.5
0
Inductance (μH)
DC Current (A)
SRP1040-R75M
Temperature Rise (°C)
20
40
60
80
100
0
04.4 8.8 13.2 17.622
0.6
1.2
1.8
2.4
3
0
Inductance (μH)
DC Current (A)
SRP1040-1R2M
Temperature Rise (°C)
20
40
60
80
100
0
048121620
0.6
1.2
1.8
2.4
3
0
Inductance (μH)
DC Current (A)
SRP1040-1R7M
Temperature Rise (°C)
20
40
60
80
100
0
07.6 15.2 22.8 30.438
0.12
0.24
0.36
0.48
0.6
0
20
40
60
80
100
Inductance (μH)
DC Current (A)
SRP1040-R39M
Temperature Rise (°C)
0
07.2 14.4 21.6 28.836
0.14
0.28
0.42
0.56
0.7
0
20
40
60
80
100
Inductance (μH)
DC Current (A)
SRP1040-R50M
Temperature Rise (°C)
0
0481216
0.8
1.6
2.4
3.2
4.0
0
20
40
60
80
100
Inductance (μH)
DC Current (A)
SRP1040-2R5M
Temperature Rise (°C)
0
04 61216
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-6R8M
Temperature Rise (°C)
SRP1040 Series - Shielded Power Inductors
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
L vs. I Charts
3312 - 2 mm SMD Trimming Potentiometer
SRP1040 Series - Shielded Power Inductors
L vs. I Charts
0
04 81216202428323640
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-R36M
Temperature Rise (°C)
0
03 6912 15 18 21 24 27 30 33
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-R68M
Temperature Rise (°C)
0
02 46810121416182220 24
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-2R2M
Temperature Rise (°C)
0
36 9121518212427 30
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-1R0M
Temperature Rise (°C)
0
04 81216202428323640
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-R47M
Temperature Rise (°C)
0
46810 12 14 16 18 20 22 24 26 28 30 32 34 36 38
0.15
0.30
0.45
0.60
0.75
0.90
1.05
1.20
1.35
1.50
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-R56M
Temperature Rise (°C)
0
02 4681014
12 16 2018 22
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-1R5M
Temperature Rise (°C)
0
01 23456789 1110 12
1.5
3.0
4.5
6.0
7.5
9.0
10.5
12.0
13.5
15.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-5R6M
Temperature Rise (°C)
0
02468101216
0.8
1.6
2.4
3.2
4.0
4.8
5.6
6.4
7.2
8.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-4R7M
Temperature Rise (°C)
0
02 468101214 16
0.8
1.6
2.4
3.2
4.0
4.8
5.6
6.4
7.2
8.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-3R3M
Temperature Rise (°C)
0
036912 15
1.2
2.4
3.6
4.8
6.0
0
20
40
60
80
100
Inductance (μH)
DC Current (A)
SRP1040-3R9M
Temperature Rise (°C)
0
01 23456789
1.5
3.0
4.5
6.0
7.5
9.0
10.5
12.0
13.5
15.0
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-8R2M
Temperature Rise (°C)
0
04 81216202428323640
0.05
0.1
0.15
0.2
0.25
0
10
Inductance (μH)
DC Current (A)
SRP1040-R20M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
0123456789
1.5
3.0
4.5
6.0
7.5
9.0
10.5
12.0
0
10
Inductance (μH)
DC Current (A)
SRP1040-100M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
01.2 2.43.6 4.86.0
7
14
21
28
35
0
10
Inductance (μH)
DC Current (A)
SRP1040-220M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
00.6 1.21.8 2.43.0
14
28
42
56
70
0
10
Inductance (μH)
DC Current (A)
SRP1040-470M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
04
8121620242832
0.2
0.1
0.3
0.5
0.4
0.6
0.7
0.8
0.9
1.0
0
10
Inductance (μH)
DC Current (A)
SRP1040-R80M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
01.4 2.8 4.25.6 7.0
5
10
15
20
25
0
10
Inductance (μH)
DC Current (A)
SRP1040-150M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
01 234 5
10
20
30
40
50
0
10
Inductance (μH)
DC Current (A)
SRP1040-330M
Temperature Rise (°C)
20
30
40
50
60
70
80
90
100
0
0918 27 36 45
0.06
0.12
0.18
0.24
0.3
0
Inductance (μH)
DC Current (A)
SRP1040-R15M
Temperature Rise (°C)
20
40
60
80
100
0
06.2 12.4 18.6 24.831
0.3
0.6
0.9
1.2
1.5
0
Inductance (μH)
DC Current (A)
SRP1040-R75M
Temperature Rise (°C)
20
40
60
80
100
0
04.4 8.8 13.2 17.622
0.6
1.2
1.8
2.4
3
0
Inductance (μH)
DC Current (A)
SRP1040-1R2M
Temperature Rise (°C)
20
40
60
80
100
0
048121620
0.6
1.2
1.8
2.4
3
0
Inductance (μH)
DC Current (A)
SRP1040-1R7M
Temperature Rise (°C)
20
40
60
80
100
0
07.6 15.2 22.8 30.438
0.12
0.24
0.36
0.48
0.6
0
20
40
60
80
100
Inductance (μH)
DC Current (A)
SRP1040-R39M
Temperature Rise (°C)
0
07.2 14.4 21.6 28.836
0.14
0.28
0.42
0.56
0.7
0
20
40
60
80
100
Inductance (μH)
DC Current (A)
SRP1040-R50M
Temperature Rise (°C)
0
0481216
0.8
1.6
2.4
3.2
4.0
0
20
40
60
80
100
Inductance (μH)
DC Current (A)
SRP1040-2R5M
Temperature Rise (°C)
0
04 61216
2
4
6
8
10
12
0
10
20
30
40
50
60
70
80
90
100
Inductance (μH)
DC Current (A)
SRP1040-6R8M
Temperature Rise (°C)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
1.5 ± 0.1
(0.059 ± 0.004)
0.15
(0.0006)
2.0 ± 0.1
(0.079 ± 0.004)
0.35 ± 0.05
(0.014 ± 0.020)
4.0 ± 0.1
(0.157 ± 0.004)
4.5 ± 0.1
(0.177 ± 0.004)
DIA.
DIA.
11.8 ± 0.1
(0.465 ± 0.004)
16.0 ± 0.1
(0.629 ± 0.004)
10.5 ± 0.1
(0.413 ± 0.004)
24.0 ± 0.3
(0.95 ± 0.012)
1.75 ± 0.1
(.069 ± 0.004)
2.2 ± 0.3
(.087 ± 0.012)
SRP1040 Series - Shielded Power Inductors
Packaging Specications
EMBOSSED
CARRIER
EMBOSSED
CAVITY
0.10
(.004)
THICKNESS
MAX.
DIMENSIONS: MM
(INCHES)
REV. 06/19
26.0 - 0.00
(1.02 - 0.00)
2.0 ± 0.5
(.079 ± .020)
75.0 ± 2.0
(2.96 ± 0.08)
330.0
(13.00)
DIA.
13.0 ± 0.5
(.512 ± .020)DIA.
13.5 ± 0.5
(0.53 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and its
afliates (collectively, “Bourns”).
Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
without notice. Users should check for and obtain the latest relevant information and verify that such information is current and
complete before placing orders for Bourns® products.
The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns® product in a user application may vary
from the data sheet characteristics and parameters due to (i) the combination of the Bourns® product with other components
in the user’s application, or (ii) the environment of the user application itself. The characteristics and parameters of a Bourns®
product also can and do vary in different applications and actual performance may vary over time. Users should always verify
the actual performance of the Bourns® product in their specic devices and applications, and make their own independent
judgments regarding the amount of additional test margin to design into their device or application to compensate for
differences between laboratory and real world conditions.
Unless Bourns has explicitly designated an individual Bourns® product as meeting the requirements of a particular industry
standard (e.g., ISO/TS 16949) or a particular qualication (e.g., UL listed or recognized), Bourns is not responsible for any
failure of an individual Bourns® product to meet the requirements of such industry standard or particular qualication. Users of
Bourns® products are responsible for ensuring compliance with safety-related requirements and standards applicable to their
devices or applications.
Bourns® products are not recommended, authorized or intended for use in nuclear, lifesaving, life-critical or life-sustaining ap-
plications, nor in any other applications where failure or malfunction may result in personal injury, death, or severe property or
environmental damage. Unless expressly and specically approved in writing by two authorized Bourns representatives on a
case-by-case basis, use of any Bourns® products in such unauthorized applications might not be safe and thus is at the user’s
sole risk. Life-critical applications include devices identied by the U.S. Food and Drug Administration as Class III devices and
generally equivalent classications outside of the United States.
Bourns expressly identies those Bourns® standard products that are suitable for use in automotive applications on such
products’ data sheets in the section entitled “Applications.” Unless expressly and specically approved in writing by two
authorized Bourns representatives on a case-by-case basis, use of any other Bourns® standard products in an automotive
application might not be safe and thus is not recommended, authorized or intended and is at the user’s sole risk. If Bourns
expressly identies a sub-category of automotive application in the data sheet for its standard products (such as infotainment
or lighting), such identication means that Bourns has reviewed its standard product and has determined that if such Bourns®
standard product is considered for potential use in automotive applications, it should only be used in such sub-category of
automotive applications. Any reference to Bourns® standard product in the data sheet as compliant with the AEC-Q standard
or “automotive grade” does not by itself mean that Bourns has approved such product for use in an automotive application.
Bourns® standard products are not tested to comply with United States Federal Aviation Administration standards generally
or any other generally equivalent governmental organization standard applicable to products designed or manufactured for
use in aircraft or space applications. Bourns expressly identies Bourns® standard products that are suitable for use in aircraft
or space applications on such products’ data sheets in the section entitled “Applications.” Unless expressly and specically
approved in writing by two authorized Bourns representatives on a case-by-case basis, use of any other Bourns® standard
product in an aircraft or space application might not be safe and thus is not recommended, authorized or intended and is at the
user’s sole risk.
The use and level of testing applicable to Bourns® custom products shall be negotiated on a case-by-case basis by Bourns and
the user for which such Bourns® custom products are specially designed. Absent a written agreement between Bourns and the
user regarding the use and level of such testing, the above provisions applicable to Bourns® standard products shall also apply
to such Bourns® custom products.
Users shall not sell, transfer, export or re-export any Bourns® products or technology for use in activities which involve the
design, development, production, use or stockpiling of nuclear, chemical or biological weapons or missiles, nor shall they use
Bourns® products or technology in any facility which engages in activities relating to such devices. The foregoing restrictions
apply to all uses and applications that violate national or international prohibitions, including embargos or international
regulations. Further, Bourns® products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns® products may not, without prior
authorization from Bourns and/or the U.S. Government, be resold, transferred, or re-exported to any party not eligible
to receive U.S. commodities, software, and technical data.
To the maximum extent permitted by applicable law, Bourns disclaims (i) any and all liability for special, punitive, consequential,
incidental or indirect damages or lost revenues or lost prots, and (ii) any and all implied warranties, including implied warranties
of tness for particular purpose, non-infringement and merchantability.
For your convenience, copies of this Legal Disclaimer Notice with German, Spanish, Japanese, Traditional Chinese and Simplied Chinese
bilingual versions are available at:
Web Page: http://www.bourns.com/legal/disclaimers-terms-and-policies
PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf
C1753 05/17/18R