*R
oH
S
**
CO
HA
LO & MP
LI
GE
AN
N
T
FR
EE
Features
■
Shielded construction – low radiation
■
Bifilar wound
■
Impedance range: 67 to 360 ohms
Applications
■
EMI suppression for:
@ 100 MHz
■
AEC-Q200 qualified
■
RoHS compliant* and halogen free**
-
-
-
-
-
Data and signal lines
CANbus
Automotive electronics
Consumer electronics
Telecom devices
SRF2012AA Series - Common Mode Chip Inductors
Electrical Specifications @ 25 °C
Impedance
@ 100 MHz / 1 V
Bourns
Part Number
Z
(Ω)
Tolerance
(%)
General Specifications
Rated Voltage ............................ 50 VDC
Withstanding Voltage ............... 125 VDC
Insulation Resistance
........... 10 megohms min. @ 100 VDC
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Temperature Rise .....20 °C at rated Irms
Materials
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging ....... 2000 pcs. per 7-inch reel
Product Dimensions
DCR
Typ.
(Ω)
DCR
Max.
(Ω)
Irms
(mA)
SRF2012A-670YA
SRF2012A-900YA
SRF2012A-121YA
SRF2012A-161YA
SRF2012A-181YA
SRF2012A-201YA
SRF2012A-221YA
SRF2012A-261YA
SRF2012A-361YA
67
90
120
160
180
200
220
260
360
± 25
± 25
± 25
± 25
± 25
± 25
± 25
± 25
± 25
0.15
0.16
0.20
0.25
0.25
0.30
0.30
0.35
0.45
0.25
0.30
0.30
0.35
0.35
0.40
0.40
0.40
0.50
400
400
400
350
350
300
300
300
300
Soldering Profile
PRE-HEATING
20 ~ 40 s
TP (260 °C) 40 s max.
SOLDERING
NATURAL
COOLING
2.0 ± 0.2
(.079 ± .008)
TEMPERATURE (°C)
217 °C
200 °C
150 °C
60 ~ 180 s
60 ~ 150 s
0.15 ± 0.1
(.006 ± .004)
1
2
0.46 ± 0.1
( .018 ± .004)
25
480 s max.
Reflow times: 3 times max.
TIME (Seconds)
0.55 ± 0.1
( .022 ± .004)
4
3
0.46 ± 0.1
( .018 ± .004)
0.55 ± 0.1
( .022 ± .004)
How to Order
Schematic
SRF2012A - 201 Y A
1
Model
Value Code (see table)
Tolerance Code
Model Suffix
2
1.2 ± 0.2
(.047 ± .008)
4
3
1.2 ± 0.2
(.047 ± .008)
Recommended Layout
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
0.45
(.018)
1.25
(.049)
4
1.1
(.043)
3
2.6
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
(.102)
**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.
DIMENSIONS:
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)
SRF2012AA Series - Common Mode Chip Inductors
Typical Impedance vs. Frequency Curves
1000
SRF2012A-670YA
1000
SRF2012A-900YA
Impedance (Ohms)
Impedance (Ohms)
100
Common Mode
10
Normal Mode
1
100
Common Mode
10
Normal Mode
1
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Frequency (MHz)
1000
SRF2012A-121YA
1000
Frequency (MHz)
SRF2012A-161YA
Impedance (Ohms)
100
Impedance (Ohms)
Common Mode
100
Common Mode
10
Normal Mode
1
10
Normal Mode
1
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Frequency (MHz)
1000
SRF2012A-181YA
1000
Frequency (MHz)
SRF2012A-201YA
Impedance (Ohms)
Impedance (Ohms)
100
Common Mode
100
Common Mode
10
Normal Mode
1
10
Normal Mode
1
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Frequency (MHz)
1000
SRF2012A-221YA
1000
Frequency (MHz)
SRF2012A-261YA
Impedance (Ohms)
Impedance (Ohms)
100
Common Mode
100
Common Mode
10
Normal Mode
1
10
Normal Mode
1
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Frequency (MHz)
Frequency (MHz)
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.
SRF0504 Series - Line Filter Mode Chip Inductors
SRF2012AA Series - Common
Typical Impedance vs. Frequency Curves (Continued)
10000
1000
Common Mode
100
10
Normal Mode
1
0.1
1
10
100
1000
10000
SRF2012A-361YA
Impedance (Ohms)
Frequency (MHz)
Packaging Specifications
9.0 ± 0.5
(.354 ± .020)
13.5 ± 0.5
(.531 ± .020)
DIA.
R
60 ± 2
(2.362 ± .079)
13.5 ± 0.5
(.531 ± .020)
20.5
(.807)
R
10.5
(.413)
0.5
R
(.020)
R
178 ± 2
(7.008 ± .079)
1.9
(.075)
120 °
2.0 ± 0.05
(.079 ± .002)
1.75 ± 0.1
(.069 ± .004)
4.0 ± 0.1
(.157 ± .004)
A
1.5 + 0.1
DIA.
(.059 + .004)
0.24 ± 0.05
(.009 ± .002)
8.0 ± 0.1
(.315 ± .004)
3.5 ± 0.05
(.138 ± .002)
4.0 ± 0.1
(.157 ± .004)
2.25 ± 0.1
(.089 ± .004)
A
1.1 + 0.1
DIA.
(.043 + .004)
1.50 ± 0.1
(.059 ± .004)
1.45 ± 0.1
(.057 ± .004)
SECTION A-A
DIMENSIONS:
USER DIRECTION OF FEED
MM
(INCHES)
QTY: 2000 PCS. PER REEL
08/15
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.
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