5.8
(.228)
6.0
(.236)
TYP.
TYP.
8.0 ± 0.3
(.315 ± .012)
2.0
(.079)
2.0
(.079)
3.2
(.126)
2.5
(.098)
TYP.
2.8
(.110)
TYP.
2.5
(.098)
2.8 ± 0.3
(.110 ± .012)
8.0 ± 0.3
(.315 ± .012)
Features
■ Shielded construction
■ Inductance range: 2.5 to 100 µH
■ Heating current up to 4.5 A
■ AEC-Q200 qualifi ed
■ RoHS compliant* and halogen free**
Applications
■ Automotive systems:
- Driver assistant
- Information
- Entertainment
- Lighting
■ DC/DC converters
■ Power supplies
SRU8028A Series - Shielded Power Inductors
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
Electrical Specifi cations @ 25 °C General Specifi cations
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish .........................Ag/Ni/Sn
Packaging .................. 1500 pcs. per reel
Materials
Product Dimensions
Recommended Layout
DIMENSIONS:
MM
(INCHES)
How to Order
SRU8028A - 100Y
Model
Value Code (see table)
*RoHS COMPLIANT
& AEC-Q200 QUALIFIED
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** Bourns follows the prevailing defi nition 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.
Specifi cations 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 specifi c applications.
Electrical Schematic
Asia-Pacifi c: 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
Bourns
Part Number
Inductance
@ 100 KHz / 1 V
Q
(Ref.)
Test
Freq.
(MHz)
SRF
(MHz)
Typ.
DCR
(Ω)
Max.
I rms
(A)
I sat
(A)
L (µH) Tol. (%)
SRU8028A-2R5Y 2.5 ±30 15 7.96 65 0.018 4.5 4.2
SRU8028A-3R3Y 3.3 ±30 12 7.96 60 0.023 3.6 3.5
SRU8028A-4R7Y 4.7 ±30 15 7.96 50 0.026 3.7 3.2
SRU8028A-6R8Y 6.8 ±30 13 7.96 40 0.045 2.8 2.5
SRU8028A-100Y 10 ±30 22 2.52 35 0.057 2.6 2.2
SRU8028A-150Y 15 ±30 20 2.52 25 0.085 2.0 1.7
SRU8028A-220Y 22 ±30 22 2.52 20 0.13 1.6 1.5
SRU8028A-330Y 33 ±30 20 2.52 15 0.185 1.3 1.1
SRU8028A-470Y 47 ±30 14 2.52 12 0.23 1.2 1.0
SRU8028A-680Y 68 ±30 23 2.52 9 0.39 0.85 0.8
SRU8028A-101Y 100 ±30 20 0.796 8 0.50 0.75 0.7
220
LCR METER
Inductor Connection
