Features
Applications
■ Shielded construction – low radiation
■ Bifilar wound
■ EMI suppression for:
- Data and signal lines
- CANbus
- Automotive electronics
- Consumer electronics
- Telecom devices
■ Impedance range: 67 to 360 ohms
@ ꢀ00 MHz
■ AEC-Q200 qualified
■ RoHS compliant* and halogen free**
SRF2012AA Series - Common Mode Chip Inductors
Electrical Specifications @ 25 °C
General Specifications
Rated Voltage............................ 50 VDC
Impedance
@ 100 MHz / 1 V
Withstanding Voltage............... 125 VDC
DCR
Typ.
(Ω)
DCR
Max.
(Ω)
Insulation Resistance
Bourns
Z
Tolerance
Irms
(mA)
...........10 megohms min. @ 100 VDC
Operating Temperature
Part Number
(Ω)
67
90
(%)
25
25
25
25
25
25
25
25
25
SRF2012A-670YA
SRF2012A-900YA
SRF2012A-121YA
SRF2012A-161YA
SRF2012A-181YA
SRF2012A-201YA
SRF2012A-221YA
SRF2012A-261YA
SRF2012A-361YA
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
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
120
160
180
200
220
260
360
................................-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
Soldering Profile
Product Dimensions
2.0 0.2
(.079 .008ꢁ
PRE-HEATING
SOLDERING
NATURAL
COOLING
20 ~ 40 s
TP (260 °C) 40 s max.
217 °C
200 °C
150 °C
0.ꢀ5 0.ꢀ
(.006 .004ꢁ
0.46 0.ꢀ
60 ~ 150 s
( .0ꢀ8 .004ꢁ
ꢀ
2
60 ~ 180 s
480 s max.
Reflow times: 3 times max.
25
0.46 0.ꢀ
( .0ꢀ8 .004ꢁ
3
4
TIME (Seconds)
0.55 0.ꢀ
( .022 .004ꢁ
0.55 0.ꢀ
( .022 .004ꢁ
How to Order
Schematic
SRF2012A - 201 Y A
ꢀ
2
3
Model
ꢀ.2 0.2
(.047 .008ꢁ
Value Code (see table)
Tolerance Code
Model Suffix
4
ꢀ.2 0.2
(.047 .008ꢁ
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
ꢀ
2
ꢀ.25
(.049ꢁ
0.45
(.0ꢀ8ꢁ
4
3
ꢀ.ꢀ
(.043ꢁ
2.6
(.ꢀ02ꢁ
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 20ꢀꢀ/65/EU June 8, 20ꢀꢀ.
**Bourns considers a product to be “halogen free” if (aꢁ the Bromine (Brꢁ content is 900 ppm or less; (bꢁ the Chlorine
(Clꢁ content is 900 ppm or less; and (cꢁ the total Bromine (Brꢁ and Chlorine (Clꢁ content is ꢀ500 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.
MM
(INCHESꢁ
DIMENSIONS: