CM2545X111B-00 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – 2 Line Ferrite Common Mode Power Chokes

2 Line Ferrite Common
Mode Power Chokes
Steward’s common mode power/data filter products provide the most economi
cal EMI filtering available for common mode noise. They provide EMI suppres
sion for conductors such as power traces (tracks), and for high speed input/
output circuitry (including network and storage subsystems). They exhibit high
frequency impedance essentially independent of DC bias current.
Features:
Protected by one or more of the following US Patents: 5,455,552 and 5,568,111
·High current capability (10 amps continuous operation) ·Up to 170 ohms impedance @100MHz or 300 ohms @1GHz
·Parts available in both thru-hole (B) and surface mount (R) versions ·Parts available in broad band and high frequency materials
·Economical common mode EMI filtering ·Compact size
Applications:
·Filtering DC power on PC boards, especially in applications of greater than 3.0 amperes ·Filtering common mode EMI on high
speed differential lines such as network and SCSI subsystems ·Cost sensitive designs ·Applications where low DCR is needed
Part & Test Specifications:
·Maximum current ratings (I MAX) are determined by testing to a maximum temperature rise of 40^oC with continuous operating
current ·Board level components are rated up to a maximum of 75 volts ·Part performance is shown with curves for Common, Open
and Normal Mode Impedances measured along two conductors. Common Mode Impedance is the impedance of EMI noise
conducted in the same direction along two conductors. Open Circuit Impedance is the impedance measured across a single leg of
the common mode choke. Normal Mode Impedance is the total impedance to the differential circuit (both out and back).
Tested with: ·HP4396A (100KHz - 1.8 GHz) or HP8753 (to 6 GHz) Network/Spectrum Analyzer ·HP43961A Impedance Test Kit
·HP16192A Test Fixture or Inter-Continental Microwave custom fixtures ·HP16200A DC Bias Adapter ·Philips PM2811 DC Power
Supply ·Ambient Temperature 23.5^oC + 2^o ·Bandwidth 3 kHz ·Sweep Time 423 ms ·Impedance is rated at + 25% @100MHz
PART NUMBERING SYSTEM
CM
2545
X
111
B
-
00
PRODUCT
PART
SERIES CODE SIZE CODE
RATED
IMPEDANCE PACKAGING ADDITIONAL
CURRENT CODE VALUE CODE CODE
DESCRIPTION
Ambient Operating Temperature Range: -55° C to +125° C
PART
NUMBER
Fig
A
#
mm
(inches)
B
mm
(inches)
C
mm
(inches)
D
mm
(inches)
E
mm
(inches)
IMPEDANCE (Z)
TYPICAL OHMS @
100MHz 500MHz 1GHz
DCR RATED I MAX
MAX (continuous)
OHMS
mA
* ^{CM2545X111B-00}
1
6.30 + 0.25
11.38 + 0.25
9.32 + 0.25
7.62 + 0.10
2.54 + 0.10
(0.248 + 0.010) (0.448 + 0.010) (0.367 + 0.010) (0.300 + 0.004) (0.100 + 0.004)
110
260
175 0.003
10,000
* ^{CM2545X111R-00}
2
6.30 + 0.25
11.38 + 0.25
9.32 + 0.25
7.62 + 0.10
2.54 + 0.10
(0.248 + 0.010) (0.448 + 0.010) (0.367 + 0.010) (0.300 + 0.004) (0.100 + 0.004)
110
260
175 0.003
10,000
CM2545X171B-00
1
6.30 + 0.25
11.38 + 0.25
9.32 + 0.25
7.62 + 0.10
2.54 + 0.10
(0.248 + 0.010) (0.448 + 0.010) (0.367 + 0.010) (0.300 + 0.004) (0.100 + 0.004)
170
235
320 0.003
10,000
CM2545X171R-00
2
6.30 + 0.25
11.38 + 0.25
9.32 + 0.25
7.62 + 0.10
2.54 + 0.10
(0.248 + 0.010) (0.448 + 0.010) (0.367 + 0.010) (0.300 + 0.004) (0.100 + 0.004)
170
235
320 0.003
* ^{High Frequency Material}
10,000
Figure 1
Figure 2
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