
E-Series RF 4:1 Transformer
0.5 – 350 MHz
ET4-1-SM1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
North America Tel: 800.366.2266 / Fax: 978.366.2266
Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
V1
1
Features
4:1 Impedance Ratio
CT on Secondary
Surface Mount
Tape and reel packaging available
Description
M/A-COM’s ET4-1-SM1 is a 4:1 RF transformer in a
low cost, surface mount package. Ideally suited for
high volume cellular and wireless applications.
Typical applications include single to balanced mode
conversion and impedance matching. Parts are
packaged in tape & reel.
Ordering Information
Part Number
Package
ET4-1-SM1TR
Tape and Reel (900 piece Reel)
SM - 1 Package
Electrical Specifications: TA = 25°C, Z0 = 50
1
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
RF Frequency
—
0.5 - 350
MHz
—
Insertion Loss
FL—fU
0.5 - 350
2.0 - 100
dB
—
3.0
1.0
Amplitude Imbalance
FL—fU
0.5 - 350
2.0 - 100
dB
—
1.0
0.1
Phase Imbalance
FL—fU
0.5 - 350
2.0 - 100
Degrees
—
5
°
1
°
Absolute Maximum Ratings
1
1. Operation of this device above any one of these parameters
may cause permanent damage.
Parameter
Absolute Maximum
RF Power
250 mW
DC Current
30 mA
Operating Temperature
-40°C to +85°C
Storage Temperature
-55°C to +125°C