SRN2512

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Features
Applications
■ Semi-shielded construction
■ DC/DC converters
■ Miniature size
■ Notebook computers
■ Low profile: 1.2 mm
■ Digital video cameras
■ Inductance range: 0.24 to 2.2 µH
■ HDDs
■ Rated current up to 4.7 A
■ Cellphones
■ RoHS compliant* and halogen free**
■ Televisions, LCD displays
SRN2512 Series - Semi-shielded Power Inductors
Electrical Specifications @ 25 °C
Inductance
@ 1 MHz / 0.1 V
General Specifications
Bourns Part No.
L (μH)
Tol. %
Q
(Ref.)
Test
Freq.
(MHz)
SRN2512-R24M
0.24
20
7
1
330
0.024
4.7
8.0
SRN2512-R33M
0.33
20
7
1
300
0.032
4.5
5.7
SRN2512-R47M
0.47
20
8
1
190
0.032
4.4
5.5
SRN2512-R68M
0.68
20
9
1
140
0.043
3.6
4.5
SRN2512-1R0M
1.0
20
10
1
120
0.057
3.5
3.9
SRN2512-1R5M
1.5
20
10
1
90
0.096
2.5
3.0
SRN2512-2R2M
2.2
20
11
1
80
0.102
2.3
2.7
SRF
(MHz)
Min.
DCR
(Ω)
Max.
Irms
(A)
Isat
(A)
Soldering Profile
Peak Temperature260 ഒ max.
Max. Peak Temperature 260 ഒ40 sec. max.
Max. Time Above 217 ഒ: 60~150 sec. max.
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
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Coating .................Magnetic epoxy resin
Packaging ....... 2000 pcs. per 7-inch reel
Product Dimensions
Preheating
Soldering
Natural Cooling
2.5 +0.2/-0.1
(.098 +.008/-.004)
20~40 Sec.
Temperature (°C)
Peak Temperature (260 °C, 40 Sec. Max.)
200 °C
150°C
217 °C
2.0 +0.35/-0.05
(.079 +.014/-.002)
60~150 Sec.
60~180
Sec.
480 Sec. Max.
25
Time (Seconds)
Reflow Times: 3 Times Max.
Electrical Schematic
How to Order
SRN2512 - R24M
Model
0.85
(.033)
REF.
0.85
(.033)
REF.
0.8
(.031)
REF.
Value Code (see table)
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
*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.
1.2
(.047)
MAX.
Recommended Layout
2.9
(.114)
0.8
(.031)
DIMENSIONS:
2.4
(.094)
MM
(INCHES)
SRF0504
Filter
SRN2512 Series
Series -- Line
Semi-shielded
Power Inductors
L vs. IDC
SRN2512-R33M
SRN2512-R24M
0.2
0.1
0.8
0.4
Inductance (μH)
Inductance (μH)
Inductance (μH)
0.3
0.3
0.2
0.1
0
0
0
2
4
6
0
8
SRN2512-R68M
4
6
0
0.4
0.2
0
5
6
8
SRN2512-1R5M
2.5
1.5
1.0
0.5
0
4
4
DC Current(A)
Inductance (μH)
Inductance (μH)
0.6
3
2
SRN2512-1R0M
0.8
2
0.2
8
2.0
1
0.4
DC Current(A)
1.0
0
0.6
0
2
DC Current(A)
Inductance (μH)
SRN2512-R47M
0.5
0.4
2.0
1.5
1.0
0.5
0
0
DC Current(A)
1
2
3
4
0
DC Current(A)
0.6
1.2
1.8
2.4
3.0
DC Current(A)
SRN2512-2R2M
Inductance (μH)
4
3
2
1
0
0
0.5
1.0
1.5
2.0
2.5
DC Current(A)
Packaging Specifications
8.4 ± 1.0
(.331 ± .004)
4.0 ± 0.1
(.157 ± .004)
2.0 ± 0.05
(.079 ± .002)
0.23 ± 0.05
(.009 ± .002)
2.85 ± 0.1
(.112 ± .004)
8.0 ± 0.1
(.315 ± .004)
13.0 ± 0.8
(.512 ± .031)
50.0
(1.969)
MIN.
178 ± 2.0
(7.008 ± .079)
1.40 ± 0.1
(.055 ± .004)
4.0 ± 0.1
(.157 ± .004)
USER DIRECTION OF FEED
2.45 ± 0.1
(.096 ± .004)
QTY: 2000 PCS. PER REEL
DIMENSIONS:
MM
(INCHES)
REV. 12/14
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.