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SRF0703-681M Datasheet(PDF) 1 Page - Bourns Electronic Solutions

Part # SRF0703-681M
Description  Dual-Winding Shielded Power Inductors
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Manufacturer  BOURNS [Bourns Electronic Solutions]
Direct Link  http://www.bourns.com
Logo BOURNS - Bourns Electronic Solutions

SRF0703-681M Datasheet(HTML) 1 Page - Bourns Electronic Solutions

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3
DUAL INDUCTOR MODE
4
2
1
0.4
(.016)
1.4
(.055)
3.0
(.118)
7.9
(.311)
2
1
3
4
7.6
(.299)
MAX.
7.6
(.299)
MAX.
TYP.
TYP.
2.9
(.114)
1.0
(.039)
3.4 ± 0.2
(.134 ± .008)
2.7
(.106)
TYP.
Features
Multiple applications: parallel, series,
dual-inductor and transformer
Magnetically shielded, low radiation
Inductance range: 0.33 to 4000
μH
Rated current up to 6.19 A
RoHS compliant*
Applications
SEPIC topology
Power supplies for:
- Communication equipment
- Notebooks, desktop computers,
servers
- LCDs, flat panels, backlights
- Camcorders, HDTVs, car audio
systems
SRF0703 Series - Dual-Winding Shielded Power Inductors
*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.
Customers should verify actual device performance in their specific applications.
Test Voltage ..................................0.25 V
Hi-pot .................500 Vrms, 3 mA, 3 sec.
Reflow Soldering .. 230 °C; 50 sec. max.
Operating Temperature
................................. -40 °C to +125 °C
(Temperature rise included)
Storage Temperature .. -40 °C to +125 °C
Resistance to Solder Heat
...............................+260 °C for 10 sec.
Electrical Specifications @ 25 °C
Bourns Part No.
Parallel Rating
Series Rating
Inductance
@ 100 KHz
L (
μH) ±20 %
DCR
(
Ω)
Max.
Irms
(A)
Isat
(A)
Inductance
@ 100 KHz
L (
μH) ±20 %
DCR
(
Ω)
Max.
Irms
(A)
Isat
(A)
SRF0703-R33M
0.33
0.0092
6.19
14.4
1.32
0.04
3.1
7.18
SRF0703-1R0M
1.0
0.0135
5.25
7.97
4
0.072
2.63
3.99
SRF0703-1R5M
1.5
0.0191
4.64
6.52
6
0.11
2.32
3.26
SRF0703-2R2M
2.2
0.0217
4.11
5.52
8.8
0.132
2.06
2.76
SRF0703-3R3M
3.3
0.0316
3.31
4.22
13.2
0.182
1.66
2.11
SRF0703-4R7M
4.7
0.0406
3.09
3.78
18.8
0.242
1.55
1.89
SRF0703-6R8M
6.8
0.0658
2.55
3.12
27.2
0.285
1.28
1.56
SRF0703-8R2M
8.2
0.0772
2.19
2.66
32.8
0.306
1.1
1.33
SRF0703-100M
10
0.0826
2.08
2.47
40
0.342
1.04
1.24
SRF0703-150M
15
0.119
1.83
2.05
60
0.47
0.916
1.03
SRF0703-220M
22
0.15
1.62
1.67
88
0.62
0.811
0.83
SRF0703-330M
33
0.24
1.31
1.35
132
1.0
0.653
0.68
SRF0703-470M
47
0.338
1.08
1.14
188
1.28
0.542
0.57
SRF0703-680M
68
0.507
0.89
0.96
272
1.92
0.444
0.48
SRF0703-820M
82
0.61
0.86
0.89
328
2.28
0.43
0.44
SRF0703-101M
100
0.715
0.73
0.79
400
2.64
0.367
0.39
SRF0703-151M
150
0.986
0.58
0.65
600
3.63
0.289
0.32
SRF0703-221M
220
1.48
0.52
0.53
880
5.5
0.26
0.27
SRF0703-331M
330
2.16
0.42
0.44
1320
8.25
0.211
0.22
SRF0703-471M
470
2.82
0.35
0.37
1880
11.22
0.173
0.18
SRF0703-681M
680
3.96
0.29
0.31
2720
16.17
0.143
0.15
SRF0703-821M
820
5.01
0.27
0.28
3280
20.07
0.134
0.14
SRF0703-102M
1000
6.11
0.26
0.25
4000
24.42
0.128
0.13
General Specifications
Core..............................................Ferrite
Wire ............................Enameled copper
Base ................................................ LCP
Adhesive.............................. Epoxy resin
Terminal ..............................................Sn
Rated Current
............ Inductance drops 30 % at Isat
Temperature Rise .....40 °C at rated Irms
Packaging..... 1500 pcs. per 13-inch reel
Materials
Product Dimensions
Recommended Layout
Electrical Schematic
DIMENSIONS:
MM
(INCHES)
N2
2
4
N1
1
3
N2
2
4
N1
1
3
N2
2
4
N1
1
3
PARALLEL
SERIES
How to Order
SRF0703 - 100M
Model
Value Code (see table)
1
2
3
4
SERIES MODE
0.4
(.016)
1.4
(.055)
3.0
(.118)
7.9
(.311)
471


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