Features
Applications
n Available in E12 values
n Input/output of DC/DC converters
n Inductance range as low as 1.0 µH
n Power supplies for:
- Portable communication equipment
0
n Current rating to 9.4 amps
- Camcorders
- LCD televisions
47
n RoHS compliant*
SRR1260 Series - Shielded SMD Power Inductors
Electrical Specifications
Bourns
Part Number
SRR1260-1R0Y
SRR1260-1R2Y
Inductance
(µH)
1.0
1.2
Tol. (%)
± 30
± 30
Additional Information
Q
(Typ.)
26
18
Test
Freq.
(MHz)
SRF
Typ.
(MHz)
7.96
100.00
7.96
91.10
SRR1260-1R5Y
1.5
± 30
24
7.96
86.00
SRR1260-2R4Y
2.4
± 30
18
7.96
63.80
SRR1260-2R2Y
SRR1260-3R3Y
SRR1260-3R5Y
SRR1260-4R7Y
SRR1260-5R6Y
SRR1260-6R1Y
SRR1260-6R8Y
SRR1260-7R6Y
SRR1260-8R2Y
SRR1260-100M
SRR1260-120M
SRR1260-150M
SRR1260-180M
SRR1260-220M
SRR1260-270M
2.2
3.3
3.5
4.7
5.6
6.1
6.8
7.6
8.2
10.0
12.0
15.0
18.0
22.0
27.0
± 30
± 30
± 30
± 30
± 30
± 30
± 30
± 30
± 30
± 20
± 20
± 20
± 20
± 20
± 20
22
20
22
19
19
21
20
16
18
32
27
25
28
29
26
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
SRR1260-680M
SRR1260-101M
SRR1260-121K
SRR1260-151K
SRR1260-181K
68.0
82.0
100.0
120.0
150.0
180.0
± 20
± 20
± 20
± 10
± 10
± 10
22
25
26
26
20
26
40.00
12.0
37.60
36.70
33.00
29.80
28.20
27.90
24.00
21.00
19.40
17.60
15.50
13.40
2.52
2.52
0.796
0.796
0.796
0.796
9.97
7.63
7.43
6.07
5.50
5.00
4.20
SRR1260-331K
330.0
± 10
22
0.796
3.20
SRR1260-471K
SRR1260-561K
SRR1260-681K
SRR1260-821K
SRR1260-102K
390.0
470.0
560.0
680.0
820.0
1000.0
± 10
± 10
± 10
± 10
± 10
± 10
20
18
22
18
20
30
19.5
20.0
23.0
27.0
36.0
43.0
0.796
0.796
0.796
0.796
0.796
0.796
0.252
45.0
2.80
2.60
7.60
7.50
6.80
6.70
6.60
6.30
6.00
5.70
5.50
5.20
5.00
4.20
4.00
180.0
210.0
123
8.50
100
8.00
7.80
7.60
7.00
6.90
6.80
6.50
6.20
5.80
5.50
5.00
4.60
3.90
3.70
48
44
41
36
32
30
18
2.10
1.95
1.70
1.65
2.50
2.10
1.90
1.70
1.08
8
0.95
0.88
0.80
0.73
0.68
1.00
0.90
0.80
0.75
0.63
0.60
Inductance Test Frequency / Voltage
SRR1260-1R0Y to -8R2Y.... 100 kHz/0.1 V
SRR1260-100M to -102K......... 1 kHz/0.1 V
Operating Temperature
.................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
.................................-40 °C to +125 °C
Temperature Rise
.....................40 °C max. at rated I rms
Inductance Drop........... 25 % typ. at I sat
Moisture Sensitivity Level......................1
ESD Classification (HBM)................. N/A
Materials
Core.............................Ferrite DR and RI
Wire..................... Enameled copper wire
Terminal.....................................Cu/Ni/Sn
Packaging..................... 600 pcs. per reel
Product Dimensions
12.5 ± 0.3
(.492 ± .012)
14
1.20
CONTACT
General Specifications
17
10
1.10
PRODUCT TECHNICAL INVENTORY SAMPLES
LIBRARY
15
1.40
1.15
1.30
20
13
580.0
1.40
24
1.65
1.30
1700.0
53
53
2.20
1.38
1500.0
58
58
2.30
380.0
2.00
74
65
22
1.55
1150.0
74
2.70
1.55
820.0
100
2.80
260.0
700.0
123
28
2.80
Click these links for more information:
158
9.80
3.30
2.60
110.0
**KFactor
3.60
86.0
1000.0
1.80
8.20
3.00
2.40
2.20
9.20
60.0
70.0
450.0
0.796
SRR1260-391K
18.0
19.0
3.60
22
20
16.2
17.0
320.0
± 10
± 10
13.0
15.5
4.50
220.0
270.0
7.80
10.5
SRR1260-221K
SRR1260-271K
11.5
70.00
145.0
22
SRR1260-820M
9.90
6.85
± 20
24
8.80
100.0
47.0
± 20
9.5
7.92
SRR1260-470M
56.0
10.00
2.52
2.52
SRR1260-560M
9.40
10.40
27
22
7.8
8.0
2.52
± 20
± 20
I sat
Typ.
(A)
12.70
33.0
39.0
I rms
Max.
(A)
2.52
SRR1260-330M
SRR1260-390M
RDC
Max.
(mW)
100
11
12.5 ± 0.3
(.492 ± .012)
9
8
6.0 ± 0.5
(.236 ± .020)
7
6
6
5
5
5.0 ± 0.3
(.197 ± .012)
4
**K-Factor: To calculate core flux density, Bp-p (gauss) = K x L(µH) x Δ I (peak-to-peak ripple current,
A), determine core loss from Core Loss vs. Flux Density plot.
7.0
TYP.
(.276)
WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov
*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.
DIMENSIONS:
MM
(INCHES)
100
12.5 ± 0.3
(.492 ± .012)
6.0 ± 0.5
(.236 ± .020)
5.0 ± 0.3
(.197 ± .012)
SRR1260 Series - Shielded SMD Power Inductors
Soldering Profile
7.0
TYP.
(.276)
Electrical Schematic
Peak Temperature245 °C max.
Max. Peak Temperature -5 °C:30 sec. max.
Max. Time Above 217 °C: 60~150 sec. max.
Temperature
Rising Area
Preheat
Area
Reflow
Area
Forced
Cooling Area
+4.0 °C/Sec. Max.
150~200 °C / 60~120 Sec.
+3.0 °C/Sec. Max.
-(1.0~5.0) °C/Sec. Max.
250
Temperature (°C)
Recommended Layout
Peak Temperature: 245 °C
60~150 Sec.
200
REF.
60 Sec.
Max.
150
60~120 Sec.
100
2.9
(.114)
REF.
50
0
5.4
(.213)
217 °C
50
100
150
200
6.8
(.268)
REF.
2.9
(.114)
REF.
250
Time (Seconds)
Core Loss vs. Flux Density
10000
Core Loss (mW)
1000
100
10
1
0.1
0.01
10
100
1 MHz
800 KHz
500 KHz
400 KHz
300 KHz
200 KHz
100 KHz
1000
Flux Density Bp-p (gauss)
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.
SRR1260 Series - Shielded SMD Power Inductors
Packaging Specifications
330
DIA.
(12.99)
2.0 ± 0.5
(.079 ± .020)
30.4
(1.197)
13.0 ± 0.5
(.512 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
50.0
(1.969)
13.0 ± 0.5
DIA.
(.512 ± .020)
26
(1.024)
24.0
(.945)
4
(.157)
END
24
(.945)
5.3
(.209)
100
100
START
100
16.0
(.63)
NO COMPONENT
160
(6.299)
COMPONENTS
NO COMPONENT
390
(15.354)
USER DIRECTION OF FEED
QTY: 600 PCS. PER REEL
DIMENSIONS:
MM
(INCHES)
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
REV. 08/21
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
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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