PL
IA
NT
Features
■
High impedance value
■
Current rating up to 400 mA
■
RoHS compliant* and halogen free**
Applications
■
Noise suppression
■
Personal computers
■
Display panels
*R
oH
S
CO
M
SRF2012A Series - Common Mode Chip Inductors
Electrical Specifications
Impedance
@ 100 MHz
Part Number
(Ω)
Tolerance
(%)
General Specifications
Reflow soldering .... 230 °C; 50 sec max.
Operating Temperature
................................-55 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-55 °C to +125 °C
Resistance to Soldering Heat
.......................... 260 °C, 10 sec. max.
Temperature Rise ......30 °C max. at IDC
Materials
Core ..............................................Ferrite
Wire ............................Enameled copper
Terminal ....................................Ag/Ni/Sn
Packaging ....... 2000 pcs. per 7-inch reel
Product Dimensions
2.0 ± 0.2
(.079 ± .008)
Rated
Voltage
(VDC)
Withstanding
Voltage
(DC)
Insulation
Resistance
(MΩ) Min.
DCR
Max.
(Ω)
IDC
Max.
(mA)
SRF2012-300YA
SRF2012-670YA
SRF2012-900YA
SRF2012-121YA
SRF2012-161YA
SRF2012-181YA
SRF2012-201YA
SRF2012-221YA
SRF2012-261YA
SRF2012-301YA
SRF2012-361YA
SRF2012-371YA
SRF2012-501YA
SRF2012-671YA
SRF2012-901YA
30
67
90
120
160
180
200
220
260
300
360
370
500
670
900
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
0.20
0.25
0.30
0.30
0.35
0.35
0.40
0.40
0.40
0.50
0.50
0.50
0.50
0.60
0.88
400
400
400
400
350
350
300
300
300
300
300
300
300
140
100
Soldering Profile
275
<1> Maximum of 10 seconds between
+255°C and +260°C
260°C peak
<1> 255°C
0.15 ± 0.1
(.006 ± .004)
225
220°C
190°C
60 - 90
seconds
Ramp Down
6°C/second
maximum
1
2
0.46 ± 0.1
( .018 ± .004)
Temperature (°C)
175
150°C
125
120 - 150 seconds
10 seconds minimum
75
Ramp Up
3°C/second maximum
4
0.55 ± 0.1
( .022 ± .004)
3
0.46 ± 0.1
( .018 ± .004)
0.55 ± 0.1
( .022 ± .004)
25
0
50
100
150
200
250
Rev. 02/22/05
300
Time (seconds)
1.2 ± 0.2
(.047 ± .008)
How to Order
Schematic
1.2 ± 0.2
(.047 ± .008)
SRF2012 - 201 Y A
Model
Value Code (see table)
Tolerance Code
Model Suffix
1
2
Recommended Layout
1
2
0.45
(.018)
1.25
(.049)
4
3
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)
SRF2012A Series - Common Mode Chip Inductors
Typical Impedance vs. Frequency Curves
1000
SRF2012-300YA
1000
SRF2012-670YA
Impedance (Ohms)
100
Common Mode
10
Normal Mode
1
Impedance (Ohms)
100
Common Mode
10
Normal Mode
1
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Frequency (MHz)
1000
SRF2012-900YA
1000
Frequency (MHz)
SRF2012-121YA
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
SRF2012-161YA
1000
Frequency (MHz)
SRF2012-181YA
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
SRF2012-201YA
1000
Frequency (MHz)
SRF2012-221YA
Impedance (Ohms)
100
Common Mode
Impedance (Ohms)
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
SRF2012A Series - Common
Typical Impedance vs. Frequency Curves (Continued)
1000
SRF2012-261YA
1000
SRF2012-301YA
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)
SRF2012-361YA
1000
Common Mode
1000
Frequency (MHz)
SRF2012-371YA
Common Mode
Impedance (Ohms)
Impedance (Ohms)
100
100
10
Normal Mode
10
Normal Mode
1
1
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Frequency (MHz)
SRF2012-501YA
10000
10000
Frequency (MHz)
SRF2012-671YA
Impedance (Ohms)
Impedance (Ohms)
1000
Common Mode
100
10
Normal Mode
1
0.1
1
10
100
1000
10000
1000
100
10
1
0.1
1
Common Mode
Normal Mode
10
100
1000
10000
Frequency (MHz)
SRF2012-901YA
10000
Frequency (MHz)
Impedance (Ohms)
1000
Common Mode
100
10
Normal Mode
1
1
10
100
1000
10000
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.
SRF2012A Series - Common Mode Chip Inductors
Packaging Specifications
9.0 ± 0.5
(.354 ± .020)
13.5 ± 0.5
(.531 ± .020)
DIA.
60 ± 2
(2.362 ± .079)
13.5 ± 0.5
R
(.531 ± .020)
R
1.9
(.075)
120 °
20.5
(.807)
R
10.5
(.413)
0.5
R
(.020)
178 ± 2
(7.008 ± .079)
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)
0.22 ± 0.05
(.009 ± .002)
8.0 ± 0.1
(.315 ± .004)
3.5 ± 0.05
(.138 ± .002)
4.0 ± 0.1
(.157 ± .004)
2.35 ± 0.1
(.093 ± .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
REV. 09/16
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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