SRU3028 Datasheet, PDF (1/2 Pages) Bourns Electronic Solutions – Shielded SMD Power Inductors

*RoHS ^COMPLIANT
100
Features
■ Available in E6 series
■ Unit height of 2.8 mm
■ Current up to 0.72 A
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRU3028 Series - Shielded SMD Power Inductors
Electrical Specifications
Bourns
Part Number
SRU3028-100Y
Inductance
@ 100 KHz
L (µH)
Tol.
(%)
10.0 ±30
Q
Ref.
Test
Freq.
(MHz)
SRF
Typ.
(MHz)
RDC
(Ω)
20 7.96 35 160
I rms
Max.
(A)
0.72
I sat
Typ.
(A)
0.86
**K-
Factor
276
SRU3028-150Y
15.0 ±30 18 2.52 25 230 0.66 0.72 241
SRU3028-220Y
22.0 ±30 18 2.52 15 270 0.60 0.62 214
SRU3028-330Y
33.0 ±30 20 2.52 10 450 0.47 0.48 180
SRU3028-470Y
47.0 ±30 20 2.52
8
815 0.32 0.38 133
SRU3028-680Y
68.0 ±30 20 2.52
7 1400 0.24 0.28 112
SRU3028-101Y 100.0 ±30 20 0.796 5 2200 0.19 0.21 91
**K-Factor: To calculate core flux density, Bp-p (gauss) = K x L(µH) x Δ I (peak-to-peak ripple current, A),
determine core loss from Core Loss vs. Flux Density plot.
Core Loss vs. Flux Density
1000
100
General Specifications
Test Voltage ....................................0.1 V
Reflow Soldering .. 230 °C, 50 sec. max.
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Resistance to Soldering Heat
............................. +260 °C for 10 sec.
Materials
Core....................Ferrite DR and RI core
Wire ............ Enameled copper (Class F)
Terminal ....................................Ag/Ni/Sn
Rated Current
...................Ind. drop 35 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Packaging.................... 600 pcs. per reel
Product Dimensions
3.5 ± 0.2
(.138 ± .008)
10
1 MHz
500 KHz
300 KHz
1
200 KHz
100 KHz
50 KHz
0.1
0.01
100
Inductor Connection
1000
Flux Density Bp-p (gauss)
10000
Recommended Layout
REF.
4.2
(.165)
REF.
1.8
(.071)
LCR ^METER
1.2
(.047)
REF.
1.3
(.051)
REF.
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
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.
100
3.3 ± 0.2
(.130 ± .008)
2.8 ± 0.2
(.110 ± .008)
1.1
(.043)
TYP.
0.5
(.020)
TYP.
2.30 _TYP.
(.091)
TYP.
0.5
(.020)
DIMENSIONS:
MM
(INCHES)
Electrical Schematic