PL
IA
N
Features
■
Semi-shielded construction
■
Miniature size
■
Low profile: 1.2 mm
■
Inductance range: 0.24 to 2.2 µH
■
Rated current up to 3.5 A
■
RoHS compliant* and halogen free**
Applications
■
DC/DC converters
■
Notebook computers
■
Digital video cameras
■
HDDs
■
Cellphones
■
Televisions, LCD displays
*R
oH
S
CO
M
T
SRN2012 Series - Semi-shielded Power Inductors
Electrical Specifications @ 25 °C
Inductance
@ 1 MHz / 0.1 V
Test
Freq.
(MHz)
SRF
(MHz)
Min.
DCR
(Ω)
Max.
General Specifications
Operating Temperature
................................. -55 °C to +125 °C
(Temperature rise included)
Storage Temperature .... -40 °C to +85 °C
Resistance to Solder Heat
...............................+260 °C for 40 sec.
Temperature Rise .....40 °C at rated Irms
Rated Current
............ Inductance drops 30 % at Isat
Materials
Bourns Part No.
SRN2012-R24M
SRN2012-R47M
SRN2012-1R0M
SRN2012-1R5M
SRN2012-2R2M
L (μH)
Tol. %
Q
(Ref.)
Irms
(A)
Isat
(A)
0.24
0.47
1.0
1.5
2.2
20
20
20
20
20
8
9
10
12
13
1
1
1
1
1
360
220
110
90
70
0.033
0.046
0.104
0.108
0.186
3.5
2.9
2.3
1.8
1.3
4.8
3.5
2.5
2.0
1.6
Soldering Profile
Peak Temperature 260
max.
Max. Peak Temperature 260
40 sec. max.
Max. Time Above 217 : 60~150 sec. max.
Preheating
Soldering
Natural Cooling
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Coating .................Magnetic epoxy resin
Packaging ....... 2000 pcs. per 7-inch reel
Product Dimensions
2.0 +0.2/-0.1
(.079 +.008/-.004)
Temperature (°C)
Peak Temperature (260 °C, 40 Sec. Max.)
20~40 Sec.
200 °C
150°C
217 °C
60~150 Sec.
60~180
Sec.
480 Sec. Max.
1.6 +0.2/-0.1
(.063 +.008/-.004)
25
Time (Seconds)
Reflow Times: 3 Times Max.
Electrical Schematic
How to Order
SRN2012 - R24M
Model
Value Code (see table)
0.6
(.024)
REF.
0.6
(.024)
REF.
0.8
(.031)
REF.
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
EMEA:
Tel: +36 88 520 390 • Fax: +36 88 520 211
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
1.2
(.047)
MAX.
Recommended Layout
2.4
(.094)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
**Bourns follows the prevailing definition 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.
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.
0.8
(.031)
1.8
(.071)
DIMENSIONS:
MM
(INCHES)
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