Features
Applications
■ Semi-shielded construction
■ Miniature size
■ DC/DC converters
■ Notebook computers
■ Digital video cameras
■ HDDs
■ Low profile: 1 mm
■ Inductance range: 0.24 to 2.2 µH
■ Rated current up to 3.1 A
■ RoHS compliant* and halogen free**
■ Cellphones
■ Televisions, LCD displays
SRN2510 Series - Semi-shielded Power Inductors
Electrical Specifications @ 25 °C
General Specifications
Operating Temperature
Inductance
Test
Freq.
(MHz)
1
1
1
1
1
SRF
(MHz)
Min.
210
200
160
140
80
DCR
(Ω)
@ 1 MHz / 0.1 V
................................. -55 °C to +125 °C
(Temperature rise included)
Q
Irms
(A)
Isat
(A)
(Ref.)
Bourns Part No.
SRN2510-R24M
SRN2510-R47M
SRN2510-R68M
SRN2510-1R0M
SRN2510-2R2M
L (μH)
0.24
0.47
0.68
1.0
Tol. %
20
Max.
Storage Temperature .... -40 °C to +85 °C
Resistance to Solder Heat
8
0.042
0.042
0.055
0.08
3.1
3.1
2.8
2.2
1.5
4.3
3.2
2.9
2.7
1.9
20
8
...............................+260 °C for 40 sec.
Temperature Rise.....40 °C at rated Irms
Rated Current
20
9
20
10
11
............ Inductance drops 30 % at Isat
2.2
20
0.169
Soldering Profile
Materials
Core..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Coating.................Magnetic epoxy resin
Packaging....... 2000 pcs. per 7-inch reel
Peak Temperatureꢀꢁꢁ260 ഒ max.
Max. Peak Temperature 260 ഒꢀꢁꢁ40 sec. max.
Max. Time Above 217 ഒ: 60~150 sec. max.
Preheating
Soldering
Natural Cooling
20~40 Sec.
Product Dimensions
Peak Temperature (260 °C, 40 Sec. Max.)
2.5 +0.2/-0.1
(.098 +.008/-.004)
217 °C
200 °C
60~150 Sec.
150°C
60~180
Sec.
2.0 +0.35/-0.05
(.079 +.014/-.002)
480 Sec. Max.
25
Time (Seconds)
Reflow Times: 3 Times Max.
Electrical Schematic
How to Order
SRN2510 - R24M
Model
Value Code (see table)
0.85
(.033)
REF.
0.85
(.033)
REF.
0.8
(.031)
REF.
1.02
(.040)
MAX.
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
Recommended Layout
2.9
(.114)
*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.
2.4
(.094)
0.8
(.031)
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.
MM
(INCHES)
DIMENSIONS: