6.0 ± 0.2
(.236 ± .008)
6.0 ± 0.2
(.236 ± .008)
MAX.
2.8
(.110)
5.7
(.224)
1.6
(.063)
1.6
(.063)
6.3
(.248)
2R2
TYP.
1.50
(.059)
Features
n Semi-shielded construction
n Inductance range: 0.90 to 100 µH
n Rated current up to 4.6 A
n RoHS compliant* and halogen free**
Applications
n DC/DC converters
n Notebook computers
n Digital video cameras
n HDDs
n Cellphones
n Televisions, LCD displays
SRN6028 Series - Semi-shielded Power Inductors
*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.
Operating Temperature
................................. -40 °C to +125 °C
(Temperature rise included)
Storage Temperature .... -10 °C to +40 °C
Resistance to Solder Heat
...............................+260 °C for 10 sec.
Temperature Rise .....40 °C at rated Irms
Rated Current
............ Inductance drops 30 % at Isat
Electrical Specications @ 25 °C
Bourns Part No.
Inductance
@ 100 KHz / 1 V
Q
(Ref.)
Test
Freq.
(MHz)
SRF
(MHz)
Typ.
DCR
(W)
Max.
Irms
(A)
Isat
(A)L (mH) Tol. %
SRN6028-R90Y 0.90 30 12 7.96 105 0.017 4.6 6.7
SRN6028-1R5Y 1.5 30 12 7.96 70 0.021 4.2 5.1
SRN6028-2R2Y 2.2 30 12 7.96 56 0.026 3.7 4.2
SRN6028-3R0Y 3.0 30 12 7.96 46 0.03 3.4 3.6
SRN6028-3R3M 3.3 20 12 7.96 42 0.034 3.4 3.6
SRN6028-3R9M 3.9 20 10 7.96 35 0.038 3.0 2.7
SRN6028-4R7M 4.7 20 10 7.96 34 0.038 3.0 2.7
SRN6028-6R0M 6.0 20 10 7.96 28 0.048 2.5 2.5
SRN6028-6R2M 6.2 20 10 7.96 28 0.063 2.2 2.2
SRN6028-6R8M 6.8 20 10 7.96 27 0.063 2.2 2.2
SRN6028-100M 10 20 18 2.52 20 0.078 1.9 1.9
SRN6028-150M 15 20 14 2.52 17 0.114 1.8 1.6
SRN6028-220M 22 20 18 2.52 14 0.162 1.4 1.3
SRN6028-330M 33 20 11 2.52 10 0.264 1.1 1.1
SRN6028-470M 47 20 11 2.52 9 0.36 0.92 1.0
SRN6028-680M 68 20 11 2.52 7 0.51 0.77 0.8
SRN6028-101M 100 20 16 0.796 6 0.72 0.66 0.65
General Specications
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Coating .................Magnetic epoxy resin
Packaging ..... 1000 pcs. per 13-inch reel
Materials
Product Dimensions
Recommended Layout
Electrical Schematic
DIMENSIONS:
MM
(INCHES)
*RoHS COMPLIANT
LEAD FREE
*RoHS COMPLIANT
VERSIONS
AVAILABLE
LEAD FREE
VERSIONS ARE
RoHS COMPLIANT*
How to Order
SRN6028 - 4R7M
Model
Value Code (see table)
Soldering Prole
Temperature (°C)
150
260
200
20 sec.max.
Preheat 100 sec. max. 10 sec. max.
Natural Cooling
60 sec. min.
6R8
