Features
■ Semi-shielded construction
■ High rated current
■ Component height: 4 mm
■ Inductance range: 0.5 to 100 µH
■ Rated current up to 10 A
■ RoHS compliant* and halogen free**
Applications
■ DC/DC converters
■ Notebook computers
■ Digital video cameras
■ HDDs
■ Cell phones
■ Televisions, LCD displays
SRN8040 Series - Semi-shielded Power Inductors
* RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
** Bourns follows the prevailing defi nition 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.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Operating Temperature
................................. -40 °C to +125 °C
(Temperature rise included)
Storage Temperature .. -40 °C to +125 °C
Resistance to Solder Heat
...............................+250 °C for 10 sec.
Temperature Rise .....40 °C at rated Irms
Rated Current
............ Inductance drops 30 % at Isat
Electrical Specifi cations @ 25 °C General Specifi cations
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Coating .................Magnetic epoxy resin
Packaging ..... 1200 pcs. per 13-inch reel
Materials
Product Dimensions
Recommended Layout
Electrical Schematic
DIMENSIONS: MM
(INCHES)
*RoHS COMPLIANT
How to Order
SRN8040 - 100M
Model
Value Code (see table)
Soldering Profi le
Temperature (°C)
100
0
50
50
150
250
200
Rising Area
Temperature
±3.0 °C/sec. max.
Forced Cooling Area
6.0 / sec max.°C
PeakTemperature:
Time (Seconds)
100 150 200
40~90 sec.max.
250 °C +5/-10 °C, 5 sec. max.
150 ~ 200 °C / 60 - 180 sec.
Preheat Area
+1.5 ~ 3.0 °C
Reflow Area
250
217 °C
Peak Temperature: 255 ° max. Maximum Time Above 217 °C: 90 seconds
8.0 ± 0.3
(.315 ± .012)
8.0 ± 0.3
(.315 ± .012)
MAX.
REF.
4.0
(.157)
3.2
(.126)
8.0
(.315)
REF.
REF.
3.5
(.138)
REF. 2.2
(.087) REF. 2.2
(.087)
Bourns Part No.
Inductance
@ 100 KHz/1 V DCR
(Ω)
Max.
Irms
(A)
Isat
(A)L (μH) Tol. %
SRN8040-R50Y 0.5 30 0.007 10 12
SRN8040-1R0Y 1.0 30 0.01 7.8 11
SRN8040-1R5Y 1.5 30 0.011 7 8.2
SRN8040-2R2Y 2.2 30 0.013 6.3 7.4
SRN8040-3R3Y 3.3 30 0.021 5.6 5.5
SRN8040-3R6Y 3.6 30 0.022 4.9 5.3
SRN8040-4R7Y 4.7 30 0.024 4.1 4.7
SRN8040-6R8Y 6.8 30 0.033 3.9 4.2
SRN8040-8R2Y 8.2 30 0.045 3.7 4
SRN8040-100M 10 20 0.05 3.1 3.4
SRN8040-150M 15 20 0.07 2.4 2.7
SRN8040-220M 22 20 0.1 2.2 2.2
SRN8040-330M 33 20 0.145 1.7 1.9
SRN8040-470M 47 20 0.19 1.4 1.5
SRN8040-680M 68 20 0.275 1.1 1.2
SRN8040-101M 100 20 0.4 1 1
SRF0504 Series - Line Filter
Packaging Specifi cations
DIMENSIONS: MM
(INCHES)
QTY: 1200 PCS. PER REEL
REV. 05/12
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
SRN8040 Series - Semi-shielded Power Inductors
Asia-Pacifi c: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
USER DIRECTION OF FEED
200
(7.874)
LEADER
MIN.
NO COMPONENT
TRAILER
MIN.
NO COMPONENT
COMPONENTS
400
(15.748)
START
4.0
(.157)
12.0
(.472)
END
18 +0
(.709 +0)
22.4
(.881)
2.0 ± 0.5
(.079 ± .020)
50.0 -0
(1.97 -0)
330
(12.992) DIA.
13.0 ± 0.5
(.512 ± .020) DIA.
13.0 ± 0.5
(.512 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
16.0
(.630)
