Features
Applications
nꢀ Highꢀimpedanceꢀvalue
nꢀ Currentꢀratingꢀupꢀtoꢀ400ꢀmA
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
nꢀ Noiseꢀsuppression
nꢀ Personalꢀcomputers
nꢀ Displayꢀpanels
SRF2012A Series - Common Mode Chip Inductors
Electrical Specifications
General Specifications
Rated Voltage.......................... 100 VDC
Withstanding Voltage
.................................250 VDC, 3 Sec.
Operating Temperature
................................-55 °C to +125 °C
(Temperature rise included)
Storage Temperature
Impedance
@ 100 MHz
Insulation
Resistance
(MW) Min.
DCR
Max.
(W)
IDC
Max.
(mA)
Tolerance
Part Number
(W)
30
(%)
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
±25
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
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
67
................................-55 °C to +125 °C
Temperature Rise......20 °C max. at IDC
90
120
160
180
200
220
260
300
360
370
500
670
900
Materials
Core..............................................Ferrite
Wire ............................Enameled copper
Terminal....................................Ag/Ni/Sn
Packaging....... 2000 pcs. per 7-inch reel
Product Dimensions
2.0ꢀ ꢀ0.2
(.079ꢀ ꢀ.008ꢁ
Soldering Profile
0.15ꢀ ꢀ0.1
(.006ꢀ ꢀ.004ꢁ
0.46ꢀ ꢀ0.1
275
<1>ꢀMaximumꢀofꢀ10ꢀsecondsꢀbetween
ꢀꢀꢀꢀꢀꢀꢀꢀ+255°Cꢀandꢀ+260°C
260°Cꢀpeak
<1>ꢀ255°C
(ꢀ.018ꢀ ꢀ.004ꢁ
1
2
225
175
125
75
220°C
RampꢀDown
6°C/second
maximum
190°C
60ꢀ-ꢀ90
seconds
150°C
0.46ꢀ ꢀ0.1
(ꢀ.018ꢀ ꢀ.004ꢁ
3
4
120ꢀ-ꢀ150ꢀseconds
10ꢀsecondsꢀminimum
0.55ꢀ ꢀ0.1
(ꢀ.022ꢀ ꢀ.004ꢁ
0.55ꢀ ꢀ0.1
(ꢀ.022ꢀ ꢀ.004ꢁ
RampꢀUp
3°C/secondꢀmaximum
25
1.2ꢀ ꢀ0.2
0
50
100
150
200
250
300
(.047ꢀ ꢀ.008ꢁ
Rev.ꢀ02/22/05
Time (seconds)
1.2ꢀ ꢀ0.2
(.047ꢀ ꢀ.008ꢁ
How to Order
Schematic
SRF2012 - 201 Y A
1
2
3
MM
(INCHESꢁ
DIMENSIONS:
Model
Value Code (see table)
Tolerance Code
Model Suffix
4
Recommended Layout
1
4
2
3
1.25
(.049ꢁ
0.45
(.018ꢁ
WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov
1.1
(.043ꢁ
*ꢀ RoHSꢀDirectiveꢀ2015/863,ꢀMarꢀ31,ꢀ2015ꢀandꢀAnnex.
2.6
(.102ꢁ
**ꢀBournsꢀconsidersꢀaꢀproductꢀtoꢀbeꢀ“halogenꢀfree”ꢀifꢀ(aꢁꢀtheꢀBromineꢀ(Brꢁꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀ(bꢁꢀtheꢀChlorineꢀꢀ
(Clꢁꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(cꢁꢀtheꢀtotalꢀBromineꢀ(BrꢁꢀandꢀChlorineꢀ(Clꢁꢀcontentꢀisꢀ1500ꢀppmꢀorꢀless.
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀUsersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀ
applications.ꢀTheꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀlegalꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀ
lastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/docs/legal/disclaimer.pdf.
MM
(INCHESꢁ
DIMENSIONS: