6.50 ± 0.30
(.256 ± .012)
6.20 ± 0.30
(.244 ± .012)
2.50 ± 0.30
(.098 ± .012)
4.90
(.193)
TYP.
100
TYP.
2.15
(.085)
TYP.
2.20
(.087)
TYP.
2.15
(.085)
Features
■ Available in E6 series
■ Unit height of 2.8 mm
■ Current up to 3.5 A
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRU6025 Series - Shielded SMD Power Inductors
Test Voltage ....................................0.1 V
Refl ow Soldering .. 230 °C, 50 sec. max.
Operating Temp. .........-40 °C to +125 °C
(Temperature rise included)
Storage Temp. ............-40 °C to +125 °C
Resistance to Soldering Heat
............................... 260 °C for 10 sec.
Electrical Specifi cations General Specifi cations
Core ....................Ferrite DR and RI core
Wire ............................Enameled copper
Terminal ....................................Ag/Ni/Sn
Rated Current ..Ind. drop 35 % typ. at Isat
Temp. Rise.......30 °C max. at rated Irms
Packaging .................... 600 pcs. per reel
Materials
Product Dimensions
Recommended Layout
DIMENSIONS:
MM
(INCHES)
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
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
Bourns
Part Number
Inductance
@ 100 KHz
Q
Ref.
Test
Freq.
(MHz)
SRF
Typ.
(MHz)
RDC
Max.
(mΩ)
I rms
Max.
(A)
I sat
Typ.
(A)
**K-
Factor
L
(µH)
Tol.
(%)
SRU6025-1R2Y 1.2 ±30 8 7.96 120 19 4.00 3.20 535
SRU6025-2R2Y 2.2 ±30 8 7.96 65 24 3.40 2.35 370
SRU6025-3R3Y 3.3 ±30 8 7.96 50 27 3.20 2.00 321
SRU6025-4R7Y 4.7 ±30 8 7.96 42 35 2.70 1.55 253
SRU6025-6R8Y 6.8 ±30 8 7.96 36 42 2.40 1.30 229
SRU6025-8R2Y 8.2 ±30 8 7.96 30 52 2.20 1.25 193
SRU6025-100Y 10 ±30 8 7.96 25 57 2.00 1.05 178
SRU6025-150Y 15 ±30 12 2.52 22 86 1.80 0.92 146
SRU6025-220Y 22 ±30 12 2.52 18 130 1.60 0.70 123
SRU6025-330Y 33 ±30 12 2.52 12 180 1.20 0.64
98
SRU6025-470Y 47 ±30 12 2.52 10 250 1.00 0.48
84
SRU6025-680Y 68 ±30 10 2.52 8 365 0.80 0.40
68
SRU6025-101Y 100 ±30 24 2.52 7 500 0.70 0.35
55
SRU6025-151Y 150 ±30 30 2.52 5 770 0.54 0.28
47
SRU6025-221Y 220 ±30 20 2.52 4 1250 0.42 0.24
39
REF.
REF.
REF.
REF.
REF.
4.90
(.193)
2.40
(.094)
REF.
2.40
(.094)
1.10
(.043)
1.10
(.043)
REF.
1.10
(.043)
REF.
1.10
(.043)
4.90
(.193)
*RoHS COMPLIANT
**K-Factor: To calculate core fl ux 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 on page 2.
