M
PL
IA
NT
Features
■
Available in E12 values
■
Height of 4.5 mm maximum
■
Current rating to 9.3 amps
Applications
■
Input/output of DC/DC converters
■
Power supplies for:
*R
oH
S
CO
LE
AD
FR
EE
10
0
■
RoHS compliant*
• Portable communication equipment
• Camcorders
• LCD TVs
SRR1240 Series - Shielded SMD Power Inductors
Test Voltage ....................................0.1 V
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
Materials
Core ............................... Ferrite DR & RI
Wire ............. Enameled copper wire 130
Terminal ....................................Cu/Ni/Sn
Rated Current
...............Ind. drop of 25 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Packaging .................... 800 pcs. per reel
Product Dimensions
12.5
±
0.3
(.492
±
.012)
SRR1240-1R0Y
SRR1240-1R5Y
SRR1240-2R4Y
SRR1240-3R3Y
SRR1240-3R9Y
SRR1240-4R7M
SRR1240-5R6M
SRR1240-6R8M
SRR1240-8R2M
SRR1240-100M
SRR1240-120M
SRR1240-150M
SRR1240-180M
SRR1240-220M
SRR1240-270M
SRR1240-330M
SRR1240-390M
SRR1240-470M
SRR1240-560M
SRR1240-680M
SRR1240-820M
SRR1240-101M
SRR1240-121K
SRR1240-151K
SRR1240-181K
SRR1240-221K
SRR1240-271K
SRR1240-331K
SRR1240-391K
SRR1240-471K
SRR1240-561K
SRR1240-681K
SRR1240-821K
SRR1240-102K
Bourns Part No.
1.0
1.5
2.4
3.3
3.9
4.7
5.6
6.8
8.2
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100.0
120.0
150.0
180.0
220.0
270.0
330.0
390.0
470.0
560.0
680.0
820.0
1000.0
(µH)
Tol. %
± 30
± 30
± 30
± 30
± 30
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 10
± 10
± 10
± 10
± 10
± 10
± 10
± 10
± 10
± 10
± 10
± 10
Q
Typ.
Ro VE LEA
HS RS D
CO ION FRE
M SA E
PL R
IA E
NT
*
Inductance
100 KHz
10
16
10
14
14
16
14
14
10
17
16
16
14
18
16
19
14
19
16
19
16
14
12
12
12
12
10
12
12
12
12
14
10
16
Test
Freq.
(MHz)
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
2.52
2.52
2.52
2.52
2.52
2.52
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.252
SRF
Typ.
(MHz)
85
7.0
9.30
9.20
160
80
9.5
9.20
9.00
131
54
11.5
8.00
7.80
111
43
15.0
6.80
6.50
96
39
15.0
6.35
6.20
96
33
18.0
6.00
5.60
85
35
20.0
5.40
5.10
76
34
23.0
5.20
4.70
69
12.5
±
0.3
32
27.0
(.492
±
.012)
4.50
4.30
63
27
32.0
4.00
4.00
58
25
38.0
3.80
3.60
50
22
47.0
3.50
3.20
47
20
55.0
3.20
3.00
12.5
±
0.3
41
(.492
16
67.5
3.00
2.60
±
.012)
37
15.5
85.0
2.55
2.35
34
15
97.0
2.30
2.10
31
14
120.0
2.15
2.00
28
13
135.0
2.00
1.80
26
4.0
±
1.65
0.5
12
170.0
1.80
24
(.157
±
.020)
11
200.0
1.50
1.50
22
10
250.0
1.35
1.35
20
8
300.0
1.25
1.20
18
7.8
370.0
1.20
1.15
16
7.5
440.0
1.10
1.05
14
7.0
±
0.3
550.0
0.98
0.95
13
5.0
6.6
±
.012)
0.92
0.90
12
(.197
660.0
6.0
780.0
0.80
0.80
11
5.5
950.0
0.75
0.75
10
5.0
1150.0 0.70
0.65
9
7.0
4.5
1350.0 0.62
0.60
TYP.
8
(.276)
4.0
1500.0 0.55
0.52
7
3.8
2000.0 0.50
0.48
7
3.5
2400.0 0.45
0.42
6
2.8
3000.0 0.42
0.40
6
RDC
Max.
(mΩ)
I rms
Max.
(A)
I sat
Typ.
(A)
**K-
Factor
100
100
12.5
±
0.3
(.492
±
.012)
4.0
±
0.5
(.157
±
.020)
Δ
I (peak-to-peak ripple current, A),
determine core loss from
Core Loss vs. Flux Density
plot.
Electrical Schematic
Recommended Layout
REF.
5.4
(.213)
5.0
±
0.3
(.197
±
.012)
7.0
TYP.
(.276)
2.9
(.114)
REF.
6.8
(.268)
REF.
2.9
(.114)
REF.
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.
5.4
Specifications are subject to change without notice. Users should verify actual device performance in their specific
REF.
(.213)
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.
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