Features
Q2 *Ro
00 HS
CO an
M d
PL
IA
N
■
Shielded construction
■
Carbonyl powder core
T
7
R4 318
1
■
High saturation current
■
Inductance range: 0.20 to 22 µH
■
AEC-Q200 compliant
■
RoHS compliant* and halogen free**
AE
C-
SRP1245A Series - Shielded Power Inductors
Bourns
Part Number
Inductance
@ 100 KHz
Q (Min.)
/1V
@100 KHz
/1V
L
Tol.
(μH)
(%)
SRF
(MHz)
Typ.
DCR
(mΩ)
Typ.
DCR
(mΩ)
Max.
Irms
(A)
Isat
(A)
Terminal
Type
SRP1245A-R20M
SRP1245A-R22M
SRP1245A-R33M
SRP1245A-R36M
SRP1245A-R39M
SRP1245A-R47M
SRP1245A-R50M
SRP1245A-R56M
SRP1245A-R68M
SRP1245A-R82M
SRP1245A-1R0M
SRP1245A-1R2M
SRP1245A-1R5M
SRP1245A-1R8M
SRP1245A-2R2M
SRP1245A-2R7M
SRP1245A-3R3M
SRP1245A-4R7M
SRP1245A-5R6M
SRP1245A-6R0M
SRP1245A-6R8M
SRP1245A-8R2M
SRP1245A-100M
SRP1245A-180M
SRP1245A-220M
0.20
0.22
0.33
0.36
0.39
0.47
0.50
0.56
0.68
0.82
1.0
1.2
1.5
1.8
2.2
2.7
3.3
4.7
5.6
6.0
6.8
8.2
10
18
22
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
10
10
15
15
15
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
130
120
90
80
78
70
65
60
50
45
40
35
30
27
24
23
22
15
13
12
12
11
10
7
6
0.45
0.5
0.7
0.75
0.78
0.86
0.9
1
1.4
1.7
1.85
2.5
2.8
4
4.2
4.7
6.8
11.4
12.3
13
14.5
16.8
21.4
40
50
0.55
0.7
0.9
0.95
0.95
1.1
1.3
1.5
1.7
2.1
2.5
3.0
3.3
4.9
5.5
6.7
9.2
15.0
16.5
16.5
18.5
22.5
25.5
45.0
58
52
52
42
42
42
38
37
36
34
31
29
28
27
21
20
17
15
12
11.5
11.5
11
9.5
9
7.5
6.5
110
110
80
75
70
65
60
55
54
52
50
49
48
40
32
32
32
27
22
21.5
21
18
16
11
10
Non-
Lead
Frame
Test Voltage ....................................1.0 V
Test Frequency ......................... 100 KHz
Operating Temperature
................................-40 °C to +150 °C
(Temperature rise included)
Storage Temperature .. -40 °C to +125 °C
Rated Current
............ Inductance drops 20 % at Isat
Temperature Rise .....40 °C at rated Irms
Resistance to Soldering Heat
........................ +260 °C, 40 sec. max.
Moisture Sensitivity Level ..................... 1
................. N/A
1
Circuit design, component, PCB trace
cooling provisions all affect the part
temperature. Part temperature should be
Materials
Lead
Frame
Core .............................Carbonyl powder
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging ....... 500 pcs. per 13-inch reel
How to Order
SRP1245A - 100M
Model
Value Code (see table)
Product Dimensions
Non-Lead Frame Terminal
13.5 ± 0.5
(.531 ± .020)
Lead Frame Terminal
13.5 ± 0.5
(.531 ± .020)
Recommended Layout
14.2
(.559)
R20
1510
12.5 ± 0.3
(.492 ± .012)
4.8 ± 0.2
(.189 + .008)
3R3
1510
12.5 ± 0.3
(.492 ± .012)
4.8 ± 0.2
(.189 + .008)
5.0
(.197)
8.0
(.315)
2.75 ± 0.35
(.108 ± .014)
2.3 ± 0.3
(.091 ± .012)
2.0
(.079)
REF.
2.75 ± 0.35
(.108 ± .014)
2.3 ± 0.3
(.091 ± .012)
2.0
(.079)
REF.
Please consult
Bourns
®
Model SRP-A
Series Visual Inspection Guide
for detailed
construction, processing and testing
information.
* RoHS Directive 2002/95/EC Jan. 27, 2003 including
annex and RoHS Recast 2011/65/EU June 8, 2011.
**Bourns considers a product to be “halogen free” if
(a) the Bromine (Br) content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less; and
(c) the total Bromine (Br) and Chlorine (Cl) content
is 1500 ppm or less.
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
GRADUATED
LINE
GRADUATED
LINE
4.7 ± 0.3
(.185 ± .012)
DIMENSIONS:
MM
(INCHES)
4.7 ± 0.3
(.185 ± .012)
WARNING Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
SRP1245A Series
- Line Filter
SRF0504 Series
- Shielded Power Inductors
L vs. I Charts
0.35
0.28
SRP1245A-R20M
150
0.4
SRP1245A-R22M
150
120
90
60
30
0
110
0.8
SRP1245A-R33M
150
Temperature Rise (°C)
Temperature Rise (°C)
Inductance (μH)
0.21
0.14
0.07
0
0
22
44
66
88
90
60
30
0
110
Inductance (μH)
Inductance (μH)
0.6
0.24
0.16
0.08
0
0
22
44
66
88
90
0.4
60
0.2
30
0
80
0
0
20
40
60
DC Current (A)
DC Current (A)
DC Current (A)
0.60
SRP1245A-R36M
150
120
90
0.7
SRP1245A-R39M
100
1.0
SRP1245A-R47M
120
Temperature Rise (°C)
Temperature Rise (°C)
Inductance (μH)
0.42
0.28
0.14
0
0
13
26
39
52
Inductance (μH)
Inductance (μH)
0.45
0.56
80
60
40
20
0
65
0.8
0.6
90
0.30
60
0.15
30
0
75
60
0.4
0.2
0
0
13
26
39
52
30
0
0
15
30
45
60
0
65
DC Current (A)
DC Current (A)
DC Current (A)
0.8
SRP1245A-R50M
110
1.0
SRP1245A-R56M
100
80
60
40
20
0
55
1.5
SRP1245A-R68M
150
120
90
60
30
0
54
Temperature Rise (°C)
Temperature Rise (°C)
Inductance (μH)
Inductance (μH)
66
0.4
44
0.2
22
0
65
0.6
0.4
0.2
0
0
11
22
33
44
Inductance (μH)
0.6
0.9
0.6
0.3
0
0
9
18
27
36
45
0
0
13
26
39
52
DC Current (A)
DC Current (A)
DC Current (A)
1.20
0.96
SRP1245A-R82M
120
2.0
SRP1245A-1R0M
150
1.5
SRP1245A-1R2M
50
Temperature Rise (°C)
Temperature Rise (°C)
0.72
0.48
0.24
0
0
10.4
20.8
31.2
41.6
72
48
24
0
52
1.2
0.8
0.4
0
0
10
20
30
40
90
60
30
0
50
0.9
0.6
0.3
0
0
9.8
19.6
29.4
39.2
30
20
10
0
49
DC Current (A)
DC Current (A)
DC Current (A)
3.0
2.4
SRP1245A-1R5M
120
4
SRP1245A-1R8M
150
4
SRP1245A-2R2M
120
Temperature Rise (°C)
Inductance (μH)
1.8
60
1.2
0.6
0
0
6
12
18
24
30
36
30
Inductance (μH)
90
2
60
1
30
0
40
Inductance (μH)
90
3
Temperature Rise (°C)
120
3
90
2
60
1
30
0
42
0
0
10
20
30
0
0
8
16
24
0
32
DC Current (A)
DC Current (A)
DC Current (A)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and in this document are subject to specific legal disclaimers set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
Temperature Rise (°C)
Temperature Rise (°C)
96
Inductance (μH)
1.6
120
1.2
40
Inductance (μH)
Inductance (μH)
Temperature Rise (°C)
88
0.8
1.2
Temperature Rise (°C)
Temperature Rise (°C)
120
0.32
120
SRP1245A Series - Shielded Power Inductors
L vs. I Charts
( )
( )
4.5
3.6
SRP1245A-2R7M
80
64
48
32
16
0
0
10
20
30
40
5
SRP1245A-3R3M
150
8
SRP1245A-4R7M
150
120
90
Temperature Rise (°C)
Temperature Rise (°C)
4
120
90
60
30
0
32
Inductance (μH)
Inductance (μH)
2.7
1.8
0.9
0
3
2
1
0
0
8
16
24
Inductance (μH)
6
4
60
2
30
0
27
0
0
5.4
10.8
16.2
21.6
DC Current (A)
DC Current (A)
DC Current (A)
10
8
SRP1245A-5R6M
150
10
SRP1245A-6R0M
120
10
SRP1245A-6R8M
100
Temperature Rise (°C)
Temperature Rise (°C)
6
4
2
0
0
4.4
8.8
13.2
17.6
90
60
30
0
22
6
4
2
0
0
4.3
8.6
12.9
17.2
72
48
24
0
21.5
6
4
2
0
0
5.25
10.5
15.75
60
40
20
0
21
DC Current (A)
DC Current (A)
DC Current (A)
12
10
SRP1245A-8R2M
100
18
SRP1245A-100M
100
25
SRP1245A-180M
45
Temperature Rise (°C)
Temperature Rise (°C)
8
60
6
40
4
2
0
0
4.5
9
13.5
20
0
18
12
60
9
40
6
3
0
0
4
8
12
20
0
16
15
0
5
0
0
2.2
4.4
6.6
8.8
27
18
9
0
11
DC Current (A)
DC Current (A)
DC Current (A)
35
28
SRP1245A-220M
75
21
14
7
0
0
2
4
6
8
45
30
15
0
10
DC Current (A)
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA:
Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and in this document are subject to specific legal disclaimers set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
Temperature Rise (°C)
60
Inductance (μH)
Temperature Rise (°C)
80
15
80
20
36
Inductance (μH)
Inductance (μH)
Inductance (μH)
Temperature Rise (°C)
120
8
96
8
80
Inductance (μH)
Inductance (μH)
Inductance (μH)
Temperature Rise (°C)
SRP1245A Series
- Line Filter
SRF0504 Series
- Shielded Power Inductors
Electrical Schematic
PRE-HEATING
SOLDERING
TP (260 °C / 10 seconds max.)
tp (245 °C / 20~40 seconds)
NATURAL
COOLING
Temperature (°C)
217
200
150
60 ~ 180 seconds
60 ~ 150 seconds
480 seconds max.
25
Time (Seconds)
REFLOW TIMES: 3 MAX.
330
DIA.
(12.99)
2.0 ± 0.5
(.079 ± .020)
13.5 ± 0.5
(.531 ± .020)
DIA.
100.0 ± 2.0
(3.937 ± .079)
13.5 ± 0.5
DIA.
(.531 ± .020)
24.0 ± 0.5
(.945 ± .020)
24
(.945)
2.0
(.079)
1.5 ± 0.1
DIA.
(.059 ± .004)
0.35 ± 0.05
(.014 ± .002)
1.75
(.069)
4.0
(.157)
13.0 ± 0.1
(.512 ± .004)
11.5 ± 0.1
(.453 ± .004)
24.0 ± 0.3
(.945 ± .012)
Date Code
Date Code
USER DIRECTION OF FEED
QTY: 500 PCS. PER REEL
Date Code
Date Code
Date Code
Marking
Marking
Marking
Marking
Marking
16.0 ± 0.1
(.630 ± .004)
3°
5.5 ± 0.1
(.217 ± .004)
14.2 ± 0.1
(.559 ± .004)
7.0 ± 0.1
(.276 ± .004)
13.0 ± 0.1
(.512 ± .004)
DIMENSIONS:
MM
(INCHES)
REV. 05/18
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and in this document are subject to specific legal disclaimers 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
Unless otherwise expressly indicated in writing, Bourns
®
products and data sheets relating thereto are subject to change
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 with other components
the actual performance of the Bourns
®
®
®
product as meeting the requirements of a particular industry
®
of Bourns products are responsible for ensuring compliance with safety-related requirements and standards applicable to
®
Bourns
®
on a case-by-case basis, use of any Bourns
®
®
®
®
®
Bourns
®
®
standard products that are suitable for use in aircraft
®
standard
the user’s sole risk.
®
and the user for which such Bourns
®
®
custom products shall be negotiated on a case-by-case basis by Bourns
®
also apply to such Bourns custom products.
Users shall not sell, transfer, export or re-export any Bourns
®
Bourns
®
standard products shall
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
®
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
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