SRR1240-121L Bourns Inc., SRR1240-121L Datasheet
SRR1240-121L
Manufacturer Part Number
SRR1240-121L
Description
INDUCTOR POWER 120UH 1.2A SMD
Manufacturer
Bourns Inc.
Series
SRR1240r
Type
Ferrite Corer
Datasheet
1.SRR1240-4R7M.pdf
(2 pages)
Specifications of SRR1240-121L
Inductance
120µH
Current
1.2A
Current - Saturation
1.15A
Shielding
Shielded
Dc Resistance (dcr)
370 mOhm Max
Q @ Freq
12 @ 796kHz
Self Resonant Freq
7.8MHz
Package / Case
0.492" L x 0.492" W x 0.157" H (12.50mm x 12.50mm x 4.00mm)
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C
Frequency - Test
100kHz
Material - Core
Ferrite
Applications
Power Supplies
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Tolerance
-
Current - Temperature Rise
-
Bourns Part No.
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
Electrical Specifications
Electrical Schematic
Inductance
1000.0
100.0
120.0
150.0
180.0
220.0
270.0
330.0
390.0
470.0
560.0
680.0
820.0
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
(µH)
1.0
1.5
2.4
3.3
3.9
4.7
5.6
6.8
8.2
Tol. %
100 kHz
± 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
Typ.
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
Q
Frequency
Features
■
■
■
■
■
SRR1240 Series - Shielded SMD Power Inductors
(MHz)
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
Recommended Layout
Test
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
Lead free
RoHS compliant*
Available in E12 values
Height of 4.5 mm maximum
Current rating to 9.3 amps
(.114)
REF.
2.9
(MHz)
15.5
SRF
Typ.
7.8
7.5
7.0
6.6
6.0
5.5
5.0
4.5
4.0
3.8
3.5
2.8
85
80
54
43
39
33
35
34
32
27
25
22
20
16
15
14
13
12
11
10
8
(.268)
REF.
6.8
1150.0
1350.0
1500.0
2000.0
2400.0
3000.0
120.0
135.0
170.0
200.0
250.0
300.0
370.0
440.0
550.0
660.0
780.0
950.0
Max.
(mΩ)
RDC
11.5
15.0
15.0
18.0
20.0
23.0
27.0
32.0
38.0
47.0
55.0
67.5
85.0
97.0
7.0
9.5
REF.
(.213)
I rms
Max.
5.4
9.30
9.20
8.00
6.80
6.35
6.00
5.40
5.20
4.50
4.00
3.80
3.50
3.20
3.00
2.55
2.30
2.15
2.00
1.80
1.50
1.35
1.25
1.20
1.10
0.98
0.92
0.80
0.75
0.70
0.62
0.55
0.50
0.45
0.42
(A)
(.114)
REF.
2.9
Customers should verify actual device performance in their specific applications.
I sat
9.20
9.00
7.80
6.50
6.20
5.60
5.10
4.70
4.30
4.00
3.60
3.20
3.00
2.60
2.35
2.10
2.00
1.80
1.65
1.50
1.35
1.20
1.15
1.05
0.95
0.90
0.80
0.75
0.65
0.60
0.52
0.48
0.42
0.40
Typ.
(A)
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Applications
■
■
Test Voltage.....................................0.1 V
Reflow Soldering ...230 °C, 50 sec. max.
Operating Temperature ..-40 °C to +125 °C
Storage Temperature..-40 °C to +125 °C
Resistance to Soldering Heat
Core ............................Ferrite DR and RI
Wire .............Enameled copper wire 130
Terminal.....................................Cu/Ni/Sn
Rated Current
Temperature Rise ..................40 °C max.
Packaging ....................800 pcs. per reel
General Specifications
Materials
Product Dimensions
....................Ind. drop 25 % typ. at Isat
Input/output of DC/DC converters
Power supplies for:
•
•
•
•
................................260 °C for 10 sec.
Specifications are subject to change without notice.
Portable communication equipment
Camcorders
LCD TVs
Car radios
(.197 ± .012)
5.0 ± 0.3
DIMENSIONS:
100
(Temperature rise included)
(.492 ± .012)
12.5 ± 0.3
(.157 ± .020)
4.0 ± 0.5
(INCHES)
MM
at rated Irms
(.276)
(.492 ± .012)
7.0
12.5 ± 0.3
TYP.
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SRR1240-121L Summary of contents
Page 1
... Electrical Schematic Features ■ Available in E12 values ■ Height of 4.5 mm maximum ■ Current rating to 9.3 amps ■ Lead free ■ RoHS compliant* SRR1240 Series - Shielded SMD Power Inductors Test SRF RDC I rms Q Frequency Typ. Max. Max. Typ. (MHz) (MHz) (mΩ) ...
Page 2
... SRR1240 Series - Shielded SMD Power Inductors Packaging Specifications 330 2.0 ± 0.5 DIA. (12.99) (.079 ± .020) 21.0 ± 0.8 (.827 ± .031) 13.0 ± 0.5 DIA. (.512 ± .020) 24 (.945) 5.3 (.209) REV. 06/09 Specifications are subject to change without notice. ...