& *R
AE oH
C- S C
Q2 O
00 MP
QU LI
A L A NT
IF
IE
D
Features
■
Shielded construction
■
Inductance range: 10 to 33 µH
■
Heating current up to 0.7 A
■
AEC-Q200 qualified
■
RoHS compliant* and halogen free**
Applications
■
Automotive systems:
100
- Driver assistant
- Information
- Entertainment
- Lighting
■
DC/DC converters
■
Power supplies
SRU3028A Series - Shielded Power Inductors
Electrical Specifications @ 25 °C
Bourns
Part Number
Inductance
@ 100 KHz / 0.1 V
L (µH)
Tol. (%)
Q
(Ref.)
Test
Freq.
(MHz)
SRF
(MHz)
Typ.
DCR
(Ω)
Max.
I rms
(A)
I sat
(A)
General Specifications
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Resistance to Soldering Heat
............................. +250 °C for 10 sec.
Temperature Rise
......................40 °C typ. at rated I rms
Inductance Drop .......... 35 % typ. at I sat
Materials
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish .........................Ag/Ni/Sn
Packaging .................... 600 pcs. per reel
Product Dimensions
3.5 ± 0.2
(.138 ± .008)
1.3
(.051)
1.2
(.047)
SRU3028A-100Y
SRU3028A-150Y
SRU3028A-220Y
SRU3028A-330Y
10
15
22
33
±30
±30
±30
±30
20
18
18
20
2.52
2.52
2.52
2.52
35
25
15
10
0.20
0.29
0.335
0.56
0.72
0.66
0.60
0.47
0.86
0.72
0.62
0.48
How to Order
Recommended Layout
SRU3028A - 100Y
Model
Value Code (see table)
1.8
(.071)
4.2
(.165)
Inductor Connection
LC
R
100
3.3 ± 0.2
(.130 ± .008)
2.8 ± 0.2
(.110 ± .008)
M
ET
ER
0.5
TYP.
(.020)
1.1
(.043)
TYP.
2.30
TYP.
(.091)
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
TYP.
0.5
(.020)
DIMENSIONS:
MM
(INCHES)
Electrical Schematic
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns follows the prevailing definition of “halogen free” in the industry. 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.
SRU3028A Series
Line Filter
SRF0504 Series
- Shielded Power Inductors
Soldering Profile
Peak Temperature 250
max.
Max. Peak Temperature -5
30 sec. max.
Max. Time Above 217 : 60~150 sec. max.
Temperature
Rising Area
+4.0 °C/Sec. Max.
Inductance vs. DC Current Plot
10 3
7
5
Forced
Cooling Area
-(1.0~5.0) °C/Sec. Max.
Preheat
Area
150~200 °C / 60~120 Sec.
Reflow
Area
+3.0 °C/Sec. Max.
3
2
250
Peak Temperature: 250 °C
217 °C
Temperature (°C)
200
150
100
50
60~120 Sec.
60~150 Sec.
60 Sec.
Max.
Inductance (µH)
10 2
7
5
3
2
10 1
7
5
3
2
-100Y
0
50
100
150
200
250
Time (Seconds)
10 0
10 -2
2
3
5
7 10 -1
2
3
5
7 10 0
2
3
5 7 1 01
DC Current (A)
Packaging Specifications
178
DIA.
(7.008)
2.0 ± 0.5
(.079 ± .020)
16.5
(.650)
13.0
(.512)
DIA.
50 -0
(1.969 -0)
13.0
DIA.
(.512)
14 +0
(.551 +0)
END
21.0 ± 0.8
(.827 ± .031)
12
(.472)
4
(.157)
START
100
100
100
8
(.315)
NO COMPONENT
NO COMPONENT
COMPONENTS
200
(7.874)
400
(15.748)
USER DIRECTION OF FEED
DIMENSIONS:
QTY: 600 PCS. PER REEL
MM
(INCHES)
08/13
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.
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