American Microwave Corporation
7309-A Grove Road
Frederick, MD 21704


ISO -9001:2015

In Pursuit of Excellence
Through Engineering since 1978


AMC Model SW-2181-4A is a 2 to 18 GHz
Reflective SP4T Switch.


 Frequency Range

2 – 18 GHz

 Insertion Loss

3.0 dB Maximum


55 dB Minimum


On: 2.0:1
Off: 1.9:1

 Switching Speed

(10% to 90% RF): 50 ns Maximum
(90% to 10% RF): 50 ns Maximum

 RF Power

+20 dBm Maximum


TTL Compatible, One “Unit Load”
4 Individual Controls. Logic “1”-RF On, Logic “0”-RF Off

 Power Requirements

+5V @ 200 mA Maximum
– 5V @ 50 mA Maximum


RF: SMA Female
Power: RFI Solder Pin
Control: Solder Pin


Available Options:


RF Male SMA Connectors


35 dB Minimum Isolation


-12V DC Power


+15V DC Power


Reverse Logic


-15V DC Power




SMC Male Control Connector


10 ns Rise/Fall Time


Extended Frequency Range to 500 MHz

Environmental Ratings:

Our standard
environmental ratings are as follows, for specific
requirements please contact us…

 -55 ºC to +85
ºC Operating
ºC to +125 ºC Non-Operating
 Humidity:  MIL-STD-202F,
Method 103B Cond. B
 Shock:  MIL-STD-202F,
Method 213B Cond. B
 Vibration:  MIL-STD-202F,
Method 204D Cond. B
 Altitude:  MIL-STD-202F,
Method 105C Cond. B

 Temperature Cycle:
Method 107D Cond. A


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