2.2
(.087)
14.7
(.578)
2.2
(.087)
10.3
(.406)
9.5 ± 0.3
(.374 ± .012)
MARKING
(PIN 1 SIDE)
11.0 ± 0.5
(.433 ± .020)
12.5 ± 0.5
(.492 ± .020)
2.5
(.098)
10.5
(.413)
7.5 ± 0.3
(.295 ± .012)
2.5 ± 0.3
(.098 ± .012)
2.5 ± 0.3
(.098 ± .012)
2.5 ± 0.3
(.098 ± .012)
0.7 ± 0.1
(.028 ± .004)
101
1.0
(.039)
2.2
(.087)
14.7
(.578)
2.2
(.087)
10.3
(.406)
9
(.355)
1
4
8
5
3.0
(.118)
14.7
(.578)
2.2
(.087)
10.3
(.406)
9.5 ± 0.3
(.374 ± .012)
MARKING
(PIN 1 SIDE)
11.0 ± 0.5
(.433 ± .020)
12.5 ± 0.5
(.492 ± .020)
10.0 ± 0.5
(.394 ± .020)
7.5 ± 0.3
(.295 ± .012)
2.5 ± 0.3
(.098 ± .012)
2.5 ± 0.3
(.098 ± .012)
2.5 ± 0.3
(.098 ± .012)
0.7 ± 0.1
(.028 ± .004)
101
1.0
(.039)
41 85
2.2
(.087)
14.7
(.578)
2.2
(.087)
10.3
(.406)
9
(.355)
4 8
15
Features
n Available in E6 series, E12 series optional
n High inductance up to 15 mH
n High current up to 5.6 A
n Gull wing leads
n RoHS compliant*
Applications
n Input/output of DC/DC converters
n Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRR0908 Series - SMD Shielded 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
Reow 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 5 sec.
Electrical Specications
Bourns Part No.
Inductance 1
KHz
Q
Ref.
Test
Freq.
(MHz)
SRF
Min.
(MHz)
RDC
Max.
(Ω)
I rms
Max.
(A)
I sat
Typ.
(A)
**K-
Factor
µH Tol. %
SRR0908-1R5ML 1.5 ±20 20 7.96 65.0 0.014 5.60 10.00 114
SRR0908-2R7ML 2.7 ±20 20 7.96 50.0 0.019 4.80 7.70 84
SRR0908-3R9ML 3.9 ±20 20 7.96 35.0 0.021 4.40 6.60 74
SRR0908-5R6ML 5.6 ±20 18 7.96 25.0 0.027 3.80 5.50 60
SRR0908-7R5ML 7.5 ±20 18 7.96 15.0 0.032 3.40 4.60 50
SRR0908-100ML 10 ±20 33 2.52 11.0 0.040 3.00 4.10 43
SRR0908-120ML 12 ±20 40 2.52 11.0 0.050 2.50 4.00 41
SRR0908-150ML 15 ±20 45 2.52 8.50 0.065 2.20 3.90 36
SRR0908-180ML 18 ±20 40 2.52 8.50 0.075 2.00 3.80 34
SRR0908-220ML 22 ±20 35 2.52 6.00 0.080 1.90 3.30 31
SRR0908-270ML 27 ±20 45 2.52 6.00 0.090 1.80 2.90 27
SRR0908-330ML 33 ±20 40 2.52 5.00 0.10 1.70 2.70 25
SRR0908-390ML 39 ±20 45 2.52 5.00 0.135 1.50 2.40 23
SRR0908-470ML 47 ±20 40 2.52 4.00 0.15 1.40 2.30 21
SRR0908-560ML 56 ±20 35 2.52 3.00 0.165 1.35 2.10 19
SRR0908-680ML 68 ±20 30 2.52 2.50 0.184 1.25 1.90 17
SRR0908-820ML 82 ±20 30 2.52 2.40 0.26 1.05 1.90 16
SRR0908-101YL 100 ±15 40 0.796 6.00 0.28 1.00 1.30 14
SRR0908-121YL 120 ±15 42 0.796 5.70 0.34 0.90 1.10 13
SRR0908-151YL 150 ±15 45 0.796 4.60 0.45 0.80 1.00 11
SRR0908-181YL 180 ±15 35 0.796 4.20 0.50 0.70 1.00 10
SRR0908-221YL 220 ±15 35 0.796 3.80 0.60 0.65 0.95 10
SRR0908-271YL 270 ±15 30 0.796 3.40 0.70 0.60 0.75 8
SRR0908-331YL 330 ±15 30 0.796 3.00 0.80 0.55 0.70 8
SRR0908-391YL 390 ±15 33 0.796 2.60 1.00 0.50 0.65 7
SRR0908-471YL 470 ±15 30 0.796 2.30 1.15 0.45 0.62 6
SRR0908-561YL 560 ±15 35 0.796 2.20 1.50 0.38 0.55 6
SRR0908-681YL 680 ±15 30 0.796 2.00 1.70 0.35 0.50 5
SRR0908-821YL 820 ±15 35 0.796 1.90 2.20 0.32 0.45 5
SRR0908-102YL 1000 ±15 85 0.252 1.90 2.20 0.32 0.45 4
SRR0908-152YL 1500 ±15 120 0.252 1.30 4.00 0.25 0.35 4
SRR0908-222YL 2200 ±15 95 0.252 1.00 5.00 0.20 0.29 3
SRR0908-332YL 3300 ±15 95 0.252 0.90 8.00 0.15 0.24 2
SRR0908-472YL 4700 ±15 90 0.252 0.80 12.00 0.12 0.19 2
SRR0908-682YL 6800 ±15 90 0.252 0.60 16.50 0.10 0.16 2
SRR0908-822YL 8200 ±15 85 0.252 0.50 24.00 0.10 0.14 2
SRR0908-103YL 10000 ±15 110 0.0796 0.50 26.00 0.09 0.13 1
SRR0908-153YL 15000
±15 130 0.0796 0.40 40.00 0.08 0.12 1
General Specications
Core ............................... Ferrite DR & RI
Wire ............................Enameled copper
Base ................................................LCP
Terminal ....................................Cu/Ni/Sn
Adhesive .............................. Epoxy resin
Rated Current
...............Ind. drop of 10 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Packaging .................... 400 pcs. per reel
Materials
Product Dimensions
Recommended Layout
DIMENSIONS:
MM
(INCHES)
SRR0908-101Y to -153Y SRR0908-1R5M to -820M
Multiple windings possible (up to four
windings).
**K-Factor: To calculate core 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.
