
High Power GaAs SPDT Switch 
DC - 3.0 GHz 
SW-276  
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. 
V3  
1 
RoHS  
Compliant 
Features 
 
1 dB Compression Point: +39 dBm @ -8 V 
 
3rd Order Intercept: +65 dBm @ -8 V 
 
Insertion Loss: 0.4 dB  
 
Low Power Consumption 
 
Fast Switching Speed  
 
Lead-Free High Performance Ceramic Package 
 
RoHS* Compliant and 260°C Reflow Compatible 
Description 
M/A-COM’s SW-276 is a broadband GaAs SPDT 
switch available in a lead-free, 7-lead ceramic 
package.  The package is hermetically sealed, 
making this switch ideal for space, military radios 
and other environmentally harsh applications.   
Typical applications include synthesizer switching, 
transmit / receive switching, switch matrices and 
filter banks in systems such as radio and cellular 
equipment, PCM, GPS and fiber optic modules. 
M/A-COM fabricates the SW-276 using a 1.0-micron 
gate length MESFET process.  The process features 
full chip passivation for performance and reliability. 
Functional Schematic/Pin Configuration 
Parameter 
Absolute Maximum 
Input Power 
0.05 GHz 
0.5 - 2.0 GHz, -5 V Control 
0.5 - 2.0 GHz, -8 V Control 
0.5 - 2.0 GHz, -10 V Control 
+35 dBm 
+36 dBm 
+39 dBm 
+40 dBm 
Power Dissipation 
5,6 
2.0 W 
Control Voltage 
-12 V, +1 V 
Operating Temperature 
-55°C to +125°C 
Storage Temperature 
-65°C to +150°C 
Maximum Junction Temperature 
+175°C 
Thermal Resistance
5
: 
θ
jc 
+50°C/W 
Absolute Maximum Ratings 
3,4
3. Exceeding any one or combination of these limits may cause 
permanent damage to this device. 
4. M/A-COM does not recommend sustained operation near 
these survivability limits. 
5. T
 = +25°C, where T
CASE
  is the temperature at the  
bottom of the case. 
6. Special consideration must be given to the mounting of the 
switch to minimize the thermal resistance.  The bottom of the 
case should be thermally attached to the mounting surface to 
maintain the junction temperature under the absolute  
maximum rating. 
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 
Ordering Information
Part Number 
Package 
SW-276 
Bulk Packaging (CR-2) 
SW-276G 
Gull Wing (CR-2 w/gull wing) 
SW-276B
1 
Bulk Packaging (CR-2) 
SW-276T1
2
Bulk Packaging (CR-2) 
1. Table B Screening 
2. Table 1 Screening