MABA-010655-CF1A40
Transformer, 10/100BASE-T Ethernet Transformer
1 MHz - 100 MHz
Rev. V3
Features
Surface mount
100 Ohm bal-bal, 1:1 Impedance ratio
Product suited for both RX and TX channel
260°C reflow compatible
RoHS* compliant and lead free
Available on tape and reel
Description
M/A-Com Technology Solutions MABA-010655-
CF1A40 is a 10/100BASE-T Ethernet Transformer in
a low cost, surface mount package.
Electrical Specifications: TA = 25°C, 0dBm, Z0 = 50Ω, Pin = 0dBm
Parameter
Frequency
Units
Min
Typ
Max
Insertion Loss (Sdd21)
1 - 3 MHz
3 - 10 MHz
10 - 65 MHz
65 - 100 MHz
dB
dB
dB
dB
-0.25
-0.5
-0.5
-0.6
-0.20
-0.20
-0.30
-0.43
-
-
-
-
Return Loss (Sdd11 and Sdd22)
1 - 100 MHz
1 - 100 MHz
dB
dB
-
-
-30
-37
-20
-35
Differential to Common
Mode Rejection (Scd21)
DC Resistance Balance
N/A
%
-
1.5
3.5
Schematic
Pin Configuration
Pin no.
Function
1
2
3
4
Primary Dot
Ground
Primary
To Network
To PHY
Secondary
5
6
Ground
Secondary Dot
Note: Solderable area is underside of the carrier.
Castellations will not show solder wetting
1
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.