M
PL
IA
NT
Features
■
Semi-shielded construction
■
Inductance range: 1 to 220 µH
■
Rated current up to 3 A
■
RoHS compliant* and halogen free**
Applications
■
DC/DC converters
■
Notebook computers
■
Digital video cameras
■
HDDs
■
Cellphones
■
Televisions, LCD displays
*R
oH
S
CO
15
0
SRN4026 Series - Semi-shielded Power Inductors
Electrical Specifications @ 25 °C
Inductance
@ 100 KHz / 1 V
DCR
(Ω)
Max.
General Specifications
Operating Temperature
................................. -40 °C to +125 °C
(Temperature rise included)
Storage Temperature .... -10 °C to +40 °C
Resistance to Solder Heat
...............................+260 °C for 10 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 ..... 3000 pcs. per 13-inch reel
Product Dimensions
4.0 ± 0.2
(.157 ± .008)
Bourns Part No.
SRN4026-1R0Y
SRN4026-1R2Y
SRN4026-2R2Y
SRN4026-3R3M
SRN4026-4R7M
SRN4026-6R8M
SRN4026-100M
SRN4026-150M
SRN4026-220M
SRN4026-330M
SRN4026-470M
SRN4026-680M
SRN4026-101M
SRN4026-151M
SRN4026-221M
L (μH)
Tol. %
Irms
(A)
Isat
(A)
1.0
1.2
2.2
3.3
4.7
6.8
10
15
22
33
47
68
100
150
220
30
30
30
20
20
20
20
20
20
20
20
20
20
20
20
0.016
0.024
0.029
0.036
0.048
0.084
0.102
0.144
0.234
0.366
0.594
0.852
1.2
1.92
2.76
3
2.75
2.1
1.6
1.4
1.2
0.97
0.77
0.67
0.5
0.4
0.35
0.3
0.22
0.2
3
2.75
2.1
1.6
1.4
1.2
0.97
0.77
0.67
0.5
0.4
0.35
0.3
0.22
0.2
4R7
Soldering Profile
Preheat 100 sec. max.
10 sec. max.
4.0 ± 0.2
(.157 ± .008)
Temperature (°C)
260
200
20 sec.max.
Natural Cooling
150
60 sec. min.
Electrical Schematic
How to Order
SRN4026 - 4R7M
Model
Value Code (see table)
2.5
(.098)
MAX.
DIMENSIONS:
MM
(INCHES)
Recommended Layout
4.55
(.179)
3.6
(.142)
*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.
1.5
(.059)
1.5
(.059)
3312 2 mm
Semi-shielded
Potentiometer
SRF0504
-
Series -
SMD Trimming
Power Inductors
SRN4026 Series - Line Filter
Packaging Specifications
330
DIA.
(12.99)
2.0
±
0.5
(.079
±
.020)
17.2
(.677)
13.5 ± 0.5
(.531 ± .020)
DIA.
99.5
(3.917)
13.5 ± 0.5
DIA.
(.531 ± .020)
12.6
(.496)
1.5 +0.1/-0.0
DIA.
(.059 +.004/-.000)
0.3
(.012)
4.0
(.157)
2.0
±
0.05
(.079
±
.002)
1.75
(.069)
21.0
±
0.8
(.827
±
.031)
4.2
(.165)
5.5
(.217)
2.75
(.108)
4.2
(.165)
8.0
(.315)
1.5
DIA.
(.059)
12.0
(.472)
USER DIRECTION OF FEED
QTY: 3000 PCS. PER REEL
DIMENSIONS:
MM
(INCHES)
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
05/14
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.
FPGA/CPLD
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