SRF0703A

& *R
AE oH
C- S C
Q2 O
00 MP
QU LI
A L A NT
IF
IE
D
Features
Applications
■ Multiple configurations: parallel, series,
■ Automotive systems:
■
470
■
■
■
■
dual-inductor and transformer
Magnetically shielded, low radiation
Inductance range: 8.2 to 600 μH
Heating current up to 2.19 A
AEC-Q200 qualified
RoHS compliant* and halogen free**
- Driver assistant
- Information
- Entertainment
- Lighting
■ DC/DC converters
■ Power supplies
■ SEPIC - DC/DC converters
SRF0703A Series - Dual-Winding Shielded Power Inductors
Electrical Specifications @ 25 °C
General Specifications
Parallel Rating
Bourns Part No.
Inductance
@ 100 kHz /
0.25 V
L (μH) ±20 %
DCR
(Ω)
Max.
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Resistance to Solder Heat
............................. +250 °C for 10 sec.
Temperature Rise
.......................40 °C typ. at rated Irms
Inductance Drop ........... 30 % typ. at Isat
Series Rating
Irms
(A)
Isat
(A)
Inductance
@ 100 kHz /
0.25 V
L (μH) ±20 %
DCR
(Ω)
Max.
Irms
(A)
Isat
(A)
SRF0703A-8R2M
8.2
0.0772
2.19
2.66
34.1
0.306
1.1
1.33
SRF0703A-100M
10
0.0826
2.08
2.47
39.6
0.342
1.04
1.24
SRF0703A-150M
15
0.119
1.83
2.05
59.6
0.47
0.916
1.03
SRF0703A-220M
22
0.15
1.62
1.67
89.5
0.62
0.811
0.83
SRF0703A-330M
33
0.24
1.31
1.35
140.5
1.0
0.653
0.68
SRF0703A-470M
47
0.338
1.08
1.14
194.2
1.28
0.542
0.57
SRF0703A-680M
68
0.507
0.89
0.96
289.3
1.92
0.444
0.48
SRF0703A-820M
82
0.61
0.86
0.89
324.7
2.28
0.43
0.44
SRF0703A-101M
100
0.715
0.73
0.79
397.6
2.64
0.367
0.39
SRF0703A-151M
150
0.986
0.58
0.65
608.2
3.63
0.289
0.32
SRF0703A-221M
220
1.48
0.52
0.53
922.6
5.5
0.26
0.27
SRF0703A-331M
330
2.16
0.42
0.44
1335
8.25
0.211
0.22
Materials
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging .................. 1500 pcs. per reel
Product Dimensions
7.6
MAX.
(.299)
Electrical Schematics
1
2
N1
1
N2
3
2
N1
4
1
N2
3
2
N1
4
8R2
N2
3
PARALLEL
4
3.4 ± 0.2
(.134 ± .008)
SERIES
Recommended Layout
2
2.9
TYP.
(.114)
3.0
(.118)
0.4
(.016)
3.0
(.118)
0.4
(.016)
2
1
7.9
(.311)
4
1.4
(.055)
3
2.7
(.106)
TYP.
1
7.9
(.311)
3
DIMENSIONS:
1
2
4
3
MM
(INCHES)
4
1.0
TYP.
(.039)
1.4
(.055)
DUAL INDUCTOR MODE
7.6
(.299)
MAX.
SERIES MODE
DIMENSIONS:
MM
(INCHES)
How to Order
SRF0703A - 100M
Model
Value Code (see table)
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br)
and Chlorine (Cl) content is 1500 ppm or less.Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
SRF0703A Series - Dual-Winding Shielded Power Inductors
Inductance vs. IDC
SRF0703A-8R2M
L @ 25 °C
10.0
SRF0703A-220M
L @ 25 °C
L @ 125 °C
L @ 25 °C
30.0
L @ 125 °C
100.0
25.0
8.0
80.0
6.0
4.0
L (µH)
20.0
L (µH)
L (µH)
SRF0703A-680M
L @ 125 °C
15.0
10.0
2.0
0.8
1.6
2.4
0.0
0.0
3.2
40.0
20.0
5.0
0.0
0.0
60.0
0.5
1.0
1.5
0.0
0.0
2.0
0.3
IDC (A)
IDC (A)
0.6
0.9
1.2
IDC (A)
SRF0703A-151M
L @ 25 °C
L @ 125 °C
200.0
L (µH)
150.0
100.0
50.0
0.0
0.0
0.2
0.4
0.6
0.8
IDC (A)
Temperature Rise vs. IDC
SRF0703A-8R2M
100.0
ΔT @ 25 °C
80.0
ΔT @ 25 °C
60.0
50.0
80.0
60.0
40.0
ΔT (°C)
40.0
60.0
ΔT (°C)
ΔT (°C)
SRF0703A-680M
SRF0703A-220M
ΔT @ 25 °C
40.0
30.0
20.0
20.0
20.0
10.0
0.0
0.0
0.0
0.0
0.8
1.6
2.4
3.2
IDC (A)
0.0
0.5
1.0
IDC (A)
1.5
2.0
0.0
0.3
0.6
0.9
1.2
IDC (A)
SRF0703A-151M
ΔT @ 25 °C
80.0
ΔT (°C)
60.0
40.0
20.0
0.0
0.0
0.2
0.4
IDC (A)
0.6
0.8
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications
and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
SRF0703A Series - Dual-Winding Shielded Power Inductors
Soldering Profile
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.
Temperature (°C)
Peak Temperature:
250 ° C max.
Peak Temperature: 250 °C
250
217 °C
Max. Peak Temperature -5 °C:
30 sec. max.
60~150 Sec.
200
60 Sec.
Max.
150
Max. Time Above 217 °C:
90-150 sec. max.
60~120 Sec.
100
50
50
0
100
150
200
250
Time (Seconds)
Packaging Specifications
330
DIA.
(12.99)
2.0 ± 0.5
(.079 ± .020)
22.4
(.882)
13.0 ± 0.5
(.512 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
50.0 -0
(1.97 -0)
13.0 ± 0.5
DIA.
(.512 ± .020)
18 +0
(.709 +0)
16.0
(.630)
12.0
(.472)
END
8R2
NO COMPONENT
4.0
(.157)
8R2
8R2
START
8R2
COMPONENTS
8R2
NO COMPONENT
400
(15.75)
200
(7.87)
USER DIRECTION OF FEED
QTY: 1500 PCS. PER REEL
REV. 03/15
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.