SRN4026

T
PL
IA
N
M
CO
15
0
*R
oH
S
Features
Applications
■ Semi-shielded construction
■ DC/DC converters
■ Inductance range: 1 to 220 µH
■ Notebook computers
■ Rated current up to 3 A
■ Digital video cameras
■ RoHS compliant* and halogen free**
■ HDDs
■ Cellphones
■ Televisions, LCD displays
SRN4026 Series - Semi-shielded Power Inductors
Electrical Specifications @ 25 °C
Inductance
@ 100 KHz / 1 V
General Specifications
Bourns Part No.
L (μH)
Tol. %
Q
(Ref.)
Test
Freq.
(MHz)
SRN4026-1R0Y
1.0
30
9
7.96
100
0.016
3
3
SRN4026-1R2Y
1.2
30
9
7.96
80
0.024
2.75
2.75
SRN4026-2R2Y
2.2
30
9
7.96
60
0.029
2.1
2.1
SRN4026-3R3M
3.3
20
9
7.96
50
0.036
1.6
1.6
SRN4026-4R7M
4.7
20
9
7.96
40
0.048
1.4
1.4
SRN4026-6R8M
6.8
20
9
7.96
28
0.084
1.2
1.2
SRN4026-100M
10
20
11
7.96
26
0.102
0.97
0.97
SRN4026-150M
15
20
11
2.52
21
0.144
0.77
0.77
SRN4026-220M
22
20
11
2.52
16
0.234
0.67
0.67
SRN4026-330M
33
20
16
2.52
13
0.366
0.5
0.5
SRN4026-470M
47
20
19
2.52
10
0.594
0.4
0.4
SRN4026-680M
68
20
19
2.52
9
0.852
0.35
0.35
SRN4026-101M
100
20
30
0.796
7
1.2
0.3
0.3
SRN4026-151M
150
20
30
0.796
6
1.92
0.22
0.22
SRN4026-221M
220
20
30
0.796
4
2.76
0.2
0.2
SRF
(MHz)
Typ.
DCR
(Ω)
Max.
Irms
(A)
Isat
(A)
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)
Temperature (°C)
Preheat 100 sec. max.
4R7
Soldering Profile
10 sec. max.
4.0 ± 0.2
(.157 ± .008)
260
200
20 sec.max.
Natural Cooling
150
Electrical Schematic
60 sec. min.
How to Order
2.5
(.098)
MAX.
SRN4026 - 4R7M
Model
Value Code (see table)
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 -Series
2 mm -SMD
Trimming
Potentiometer
SRF0504
Filter
SRN4026
Series
- Line
Semi-shielded
Power
Inductors
Packaging Specifications
2.0 ± 0.5
(.079 ± .020)
330
DIA.
(12.99)
17.2
(.677)
13.5 ± 0.5
(.531 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
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)
1.75
(.069)
2.0 ± 0.05
(.079 ± .002)
4.0
(.157)
4.2
(.165)
2.75
(.108)
5.5
(.217)
4.2
(.165)
8.0
(.315)
12.0
(.472)
1.5
DIA.
(.059)
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
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.