Features
n Available in E6 series
n Unit height of 8.5 mm
n Current rating up to 7.5 A
n RoHS compliant*
Applications
n Input/output of DC/DC converters
n Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
SRR1208 Series - Shielded High Power Inductors
*RoHS COMPLIANT
LEAD FREE
*RoHS COMPLIANT
VERSIONS
AVAILABLE
LEAD FREE
VERSIONS ARE
RoHS COMPLIANT*
*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.
Test Voltage .......................................1 V
Operating Temperature
............................... -40 °C to +125 °C
(Temperature rise included)
Storage Temperature
............................... -40 °C to +125 °C
Resistance to Soldering Heat
.................................260 °C for 5 sec.
Rated Current
..............Ind. drop of 10 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Electrical Characteristics
Bourns Part No.
Inductance 1 KHz
Q
Ref.
Test
Frequency
(MHz)
SRF
Min.
(MHz)
RDC
Max.
(Ω)
I rms
Max.
(A)
I sat
Typ.
(A)(µH) Tol. %
SRR1208-2R5ML 2.5 ± 20 20 7.96 37 0.011 7.50 10.00
SRR1208-4R5ML 4.5 ± 20 24 7.96 30 0.014 6.50 10.00
SRR1208-6R5ML 6.5 ± 20 25 7.96 20 0.018 6.00 8.40
SRR1208-100ML 10 ± 20 20 2.52 15 0.021 5.00 6.70
SRR1208-120ML 12 ± 20 19 2.52 11 0.025 4.80 6.50
SRR1208-150ML 15 ± 20 21 2.52 11 0.036 4.00 5.60
SRR1208-180ML 18 ± 20 21 2.52 9.0 0.040 3.80 4.00
SRR1208-220ML 22 ± 20 23 2.52 7.0 0.043 3.50 4.00
SRR1208-270ML 27 ± 20 23 2.52 6.5 0.048 3.00 4.30
SRR1208-330YL 33 ± 15 23 2.52 6.5 0.062 2.80 3.80
SRR1208-390YL 39 ± 15 25 2.52 6.0 0.076 2.50 3.40
SRR1208-470YL 47 ± 15 24 2.52 5.0 0.085 2.20 3.10
SRR1208-560YL 56 ± 15 23 2.52 5.0 0.110 2.00 2.80
SRR1208-680YL 68 ± 15 20 2.52 5.0 0.135 1.80 2.60
SRR1208-820YL 82 ± 15 18 2.52 4.0 0.150 1.60 2.30
SRR1208-101YL 100 ± 15 15 0.796 4.0 0.170 1.50 2.10
SRR1208-121YL 120 ± 15 15 0.796 3.0 0.190 1.40 2.00
SRR1208-151YL 150 ± 15 14 0.796 3.0 0.240 1.30 1.72
SRR1208-181YL 180 ± 15 14 0.796 2.5 0.270 1.20 1.70
SRR1208-221KL 220 ± 10 13 0.796 2.5 0.380 1.10 1.45
SRR1208-271KL 270 ± 10 13 0.796 2.0 0.400 0.95 1.25
SRR1208-331KL 330 ± 10 13 0.796 1.8 0.650 0.85 1.12
SRR1208-391KL 390 ± 10 14 0.796 1.6 0.670 0.80 1.10
SRR1208-471KL 470 ± 10 14 0.796 1.4 0.850 0.70 0.95
SRR1208-561KL 560 ± 10 14 0.796 1.4 0.900 0.65 0.90
SRR1208-681KL 680 ± 10 13 0.796 1.2 1.00 0.60 0.82
SRR1208-821KL 820 ± 10 12 0.796 1.2 1.15 0.55 0.77
SRR1208-102KL 1000 ± 10 11 0.252 1.0 1.65 0.50 0.67
SRR1208-122KL 1200 ± 10 10 0.252 0.80 2.00 0.40 0.57
SRR1208-152KL 1500 ± 10 10 0.252 0.75 2.35 0.36 0.55
SRR1208-182KL 1800 ± 10 20 0.252 0.70 3.40 0.46 0.48
SRR1208-222KL 2200 ± 10 20 0.252 0.65 4.20 0.40 0.42
SRR1208-272KL 2700 ± 10 20 0.252 0.60 5.20 0.35 0.38
SRR1208-332KL 3300 ± 10 20 0.252 0.50 6.40 0.32 0.35
SRR1208-392KL 3900 ± 10 20 0.252 0.45 7.80 0.30 0.32
SRR1208-472KL 4700 ± 10 20 0.252 0.42 9.60 0.28 0.30
SRR1208-562KL 5600 ± 10 18 0.252 0.40 12.0 0.25 0.28
SRR1208-682KL 6800 ± 10 18 0.252 0.38 15.2 0.22 0.25
SRR1208-822KL 8200 ± 10 16 0.252 0.35 17.0 0.20 0.22
SRR1208-103KL 10000 ± 10 24 0.0796 0.30 19.2 0.18 0.20
General Specications
Core ........................ Ferrite DR & RI core
Wire ........................... Enameled copper
Base .....................................LCP E4008
Terminal ................................... Cu/Ni/Sn
Packaging ....................400 pcs. per reel
Materials
Product Dimensions
Recommended LayoutSchematic
DIMENSIONS:
MM
(INCHES)
101
12.7 ± 0.3
(.500 ± .012)
5.0 ± 0.2
(.197 ± .007)
2.3 ± 0.2
(.091 ± .007)
8.5
(.335)
MAX.
12.7 ± 0.3
(.500 ± .012)
6.0
(.236)
4.0
(.157)
5.0 ± 0.2
(.197 ± .007)
2.3 ± 0.2
(.091 ± .007)
7.0
(.276)
8.5
(.335)
MAX.
12.7 ± 0.3
(.500 ± .012)
