AS193-73LF Buy Now
pHEMT GaAs IC High Linearity 3 V Control SPDT Switch 0.1–2.5 GHz

The AS193-73 is a PHEMT GaAs FET IC high linearity SPDT switch in a SOT-6 plastic package. This switch has been designed for use where extremely high linearity, low control voltage, high isolation, low insertion loss and ultra miniature package size are required. It can be controlled with positive, negative or a combination of both voltages. Some standard implementations include antenna changeover, T/R and diversity switching over 3 W. The AS193-73 switch can be used in many analog and digital wireless communication systems including cellular, GSM and UMTS applications.


  • +2.5 to +5 V Linear Operation
  • Harmonics H2, H3 > 65 dBc @ PIN = 34.5 dBm
  • Low Insertion Loss (0.35 dB @ 0.9 GHz)
  • High Isolation (24 dB @ 0.9 GHz)
  • Ultra Miniature SOT-6 Package
Data Sheets AS193-73, AS193-73LF: PHEMT GaAs IC High-Linearity 3 V Control SPDT Switch 0.1-2.5 GHz 200186C.pdf (245 KB)
Application Notes GaAs FETs as Control Devices APN2015.pdf (423 KB)
Application Notes APN2018:Silicon Drivers for Commercial IC Products APN2018.pdf (414 KB)
Application Notes APN2019:Switch Power Characteristics APN2019.pdf (412 KB)
Application Notes Suggested PCB Land Pattern Designs for Leaded and Leadless Packages and Detailed Surface Mount Guidelines for Leadless Packages PCB_Layout_Patterns_Guidelines_200123M.pdf (1429 KB)
Designer Info IC Package List ICPkgList_12-02.pdf (49 KB)
Designer Info Power Conversion dBm to Watts Pwrconversion.pdf (401 KB)
Designer Info VSWR, Return Loss and Transmission Loss vs. Transmitted Power VSWRreturn.pdf (401 KB)
ProductName : AS193-73LF
Description (Absorptive/ Reflective) : SPDT (R)
Frequency (GHz) Min. : 0.1
Frequency (GHz) Max. : 2.5
Typ. IL (dB) : 0.3-0.55
Typ. Isol. (dB) : 30-17
Typ. IIP3 (dBm) : 55
Typ. IP1 dB (dBm) : 37
Control Logic :
Package : SOT-23, 6L
Package (mm) : 2.8 x 2.9 x 1.18
Product Information:
Description: Broad Market
Description: High Linearity
Description: Low Insertion Loss
Frequency Max.: ≥1 GHz and <2.9 GHz
Function: SPDT / SP2T
Package Type: Leaded
Power Handling: ≥30 dBm and <40 dBm
Status: In Production
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