Features
Applications
■ Shielded construction
■ Automotive systems:
- Driver assistant
- Information
■ Inductance range: 2.5 to 100 µH
■ Heating current up to 4.5 A
■ AEC-Q200 qualified
- Entertainment
- Lighting
220
■ RoHS compliant* and halogen free**
■ DC/DC converters
■ Power supplies
SRU8028A Series - Shielded Power Inductors
Electrical Specifications @ 25 °C
General Specifications
Operating Temperature
Inductance
Test
Freq.
(MHz)
SRF
(MHz)
Typ.
DCR
(Ω)
Q
I rms
(A)
Bourns
I sat
(A)
................................-40 °C to +125 °C
(Temperature rise included)
@ 100 KHz / 1 V
Part Number
(Ref.)
Max.
L (µH)
2.5
3.3
4.7
6.8
10
Tol. (%)
30
Storage Temperature
SRU8028A-2R5Y
SRU8028A-3R3Y
SRU8028A-4R7Y
SRU8028A-6R8Y
SRU8028A-100Y
SRU8028A-150Y
SRU8028A-220Y
SRU8028A-330Y
SRU8028A-470Y
SRU8028A-680Y
SRU8028A-101Y
15
12
15
13
22
20
22
20
14
23
20
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
0.796
65
60
50
40
35
25
20
15
12
9
0.018
0.023
0.026
0.045
0.057
0.085
0.13
0.185
0.23
0.39
4.5
3.6
3.7
2.8
2.6
2.0
1.6
1.3
1.2
0.85
0.75
4.2
3.5
3.2
2.5
2.2
1.7
1.5
1.1
1.0
0.8
0.7
................................-40 °C to +125 °C
Resistance to Soldering Heat
.............................+250 °C for 10 sec.
Temperature Rise
30
30
30
30
......................40 °C typ. at rated I rms
Inductance Drop.......... 35 % typ. at I sat
15
30
22
33
30
30
Materials
Core..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish .........................Ag/Ni/Sn
Packaging.................. 1500 pcs. per reel
47
68
30
30
100
30
8
0.50
Product Dimensions
How to Order
Electrical Schematic
8.0 0.3
(.315 .012)
SRU8028A - 100Y
Model
Value Code (see table)
8.0 0.3
(.315 .012)
Inductor Connection
2.8 0.3
(.110 .012)
2.5
(.098)
TYP.
6.0
(.236)
LCR METER
TYP.
2.8
(.110)
TYP.
2.5
(.098)
TYP.
MM
(INCHES)
DIMENSIONS:
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
Recommended Layout
5.8
(.228)
2.0
2.0
(.079)
(.079)
*
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.
3.2
(.126)