IA
N
Features
■
Shielded construction
■
Unit height of 5.6 mm
■
Inductance range: 0.3 to 7.2
μH
■
Current up to 18 A
■
RoHS compliant*
Applications
■
Input/output of DC/DC converters
■
Power supplies for:
*R
oH
S
CO
M
PL
T
• Portable communications equipment
• Camcorders
• LCD TVs
SRP1205 Series - Shielded Power Inductors
Initial
Inductance
L0 (μH)
0.54 ±25 %
0.85 ±25 %
1.25 ±25 %
2.00 ±25 %
2.70 ±25 %
3.50 ±25 %
4.20 ±25 %
5.80 ±25 %
7.40 ±25 %
Inductance
at Flat Point
L1 (μH)
0.30 ±25 %
0.60 ±25 %
1.00 ±25 %
1.80 ±25 %
2.50 ±25 %
3.30 ±25 %
4.00 ±25 %
5.60 ±25 %
7.20 ±25 %
Flat Point
Ref.
(A)
5.00
5.00
5.00
2.00
2.00
2.00
3.00
2.00
2.00
SRF
typ.
(MHz)
160
95
75
55
40
40
35
30
30
DCR
(mΩ)
Max.
1.8
2.5
3.4
3.4
3.4
5.4
5.4
11.4
13.5
Bourns Part No.
SRP1205-R30Y
SRP1205-R60Y
SRP1205-1R0Y
SRP1205-1R8Y
SRP1205-2R5Y
SRP1205-3R3Y
SRP1205-4R0Y
SRP1205-5R6Y
SRP1205-7R2Y
I rms
(A)
18.0
16.0
14.0
13.0
11.5
11.0
10.5
8.5
8.3
I sat
(A)
35.0
27.0
22.0
16.0
12.0
11.8
8.3
8.0
7.5
Test Voltage .......................................1 V
Test Frequency ......................... 100 KHz
.. 230 °C; 50 sec. max.
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Resistance to Soldering Heat
............................. +260 °C for 10 sec.
Moisture Sensitivity Level ..................... 1
................. N/A
1
Circuit design, component, PCB trace
L vs I Charts
8.0
7R2
6.0
cooling provisions all affect the part
temperature. Part temperature should be
Inductance (μH)
4.0
4R0
Materials
Core ........................................Ferrite ER
Wire ............................Enameled copper
Terminal ....................................Cu/Ni/Sn
Rated Current .....Ind. drops 20 % at Isat
Temperature Rise .....40 °C at rated Irms
Packaging ....... 600 pcs. per 13-inch reel
Product Dimensions
12.50 ± 0.30
(0.492 ± 0.012)
12.50 ± 0.30
(0.492 ± 0.012)
1.90 ± 0.20
(0.748 ± 0.008)
2R5
2.0
1R0
R30
0
10
20
30
40
DC Current (A)
Electrical Schematic
Recommended Layout
REF.
3.00
(0.118)
REF.
4.70
(0.185)
3.75
REF.
(0.148)
1R8~7R2: 5.60 MAX. R30~1R0: 5.00 MAX.
(0.197)
(0.220)
2.00
(0.079)
NOM.
3
2.50
(0.098)
NOM.
REF.
7.50
(0.295)
REF.
10.50
(0.413)
3.75
REF.
(0.148)
4.15
REF.
(0.163)
1R0
0.0
1
7.50 ± 0.25
(0.295 ± 0.010)
2
REF.
4.50
(0.177)
4.15
REF.
(0.163)
13.0
REF.
(0.512)
REF.
5.20
(0.205)
2.00
REF.
(0.079)
6.40
REF.
(0.252)
3 CLIP (for mounting fixed)
DIMENSIONS:
MM
(INCHES)
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
*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. 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.
SRP1205 Series - Shielded Power Inductors
275
225
175
150 °C
125
75
25
0
50
100
150
200
250
300
120 -150 seconds
10 seconds minimum
Ramp Up
4 °C/second maximum
<1> Maximum of 10 seconds
between +255 °C and +260 °C
260 °C peak
<1> 255 °C
220 °C
190°C
60 seconds
maximum
Ramp Down
5 °C/second
Temperature (°C)
Time (Seconds)
330.0
(13.00)
DIA.
2.0
±
0.5
(.079
±
.020)
30.4
(1.197)
THICKNESS
0.10
(.004)
MAX.
DIMENSIONS:
21.0
±
0.8
(.827
±
.031)
13.0
(.51)
DIA.
60.0 - 0
(2.36 - 0)
MM
(INCHES)
EMBOSSED
CAVITY
13.0
DIA.
(.51)
EMBOSSED
CARRIER
26.0 - 0
(1.02 - 0)
END
16.0
(0.630)
4.0
(0.157)
START
R50
R50
R50
R50
R50
NO COMPONENT
NO COMPONENT
COMPONENTS
200
(7.874)
MIN.
400
(15.748)
MIN.
USER DIRECTION OF FEED
600 PCS. PER REEL
REV. 03/18
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
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.
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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
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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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