The SD2943 is a gold metallized N-channel MOS field-effect RF power transistor. It is used for 50 V DC large signal applications up to 150 MHz. The SD2943 offers a 20% higher power saturation than the SD2933, and is ideal for ISM applications where reliability and ruggedness are critical factors.

Key Features

  • High power capability
  • POUT = 350 W min. with 22 dB gain@30 MHz
  • PSAT = 450 W
  • Low RDS(on)
  • Thermally enhanced packing for lower junction temperatures
  • Gold metallization
  • Excellent thermal stability
  • Common source configuration


Technical Documentation

Product Specifications
Description Version Size
DS4388 DS4388: HF/VHF/UHF RF power N-channel MOSFET 5.0 739 KB
Application Notes
Description Version Size
AN2027 AN2027: Mounting recommendations for ceramic DMOS packages 2.4 47 KB

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description Version Size
SD2943 ADS model 1.0 463 KB

Tools and Software

Development Tools
Software Development Tools
Evaluation Tools
Product Evaluation Tools
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
SD2943W M177 Loose Piece Active 85 1000 NEC EAR99 MOROCCO MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
SD2943W ActiveM177IndustrialEcopack1 0 0

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.