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50 V moisture resistant DMOS transistor for ISM applications
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The SD4933MR is an N-channel MOS field-effect RF power transistor. It is intended for use in 50 V ISM applications up to 100 MHz.

The SD4933MR benefits from the latest generation of environmentally designed packaging, ruggedized against cyclic high moisture operating and severe storage conditions.

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Errata Sheet
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Key Features

  • Improved ruggedness V(BR)DSS> 200 V
  • Excellent thermal stability
  • 20:1 all phases load mismatch capability
  • POUT= 300 W min. with 24 dB gain @ 30 MHz
  • In compliance with the 2002/95/EEC European directive
  • Moisture resistant package specifically designed to operate under extreme environments

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS9254: 50 V moisture resistant DMOS transistor for ISM applications
2.0 662 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
SD4933MR ADS model
402 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-RFMOS002 Large signal load stability for RF transistors based on Agilnet ADS
STSW-RFMOS001 Mismatch analysis for RF transistor circuits based on Agilent ADS

Sample & Buy

Part Number Marketing StatusPackagePacking TypeAutomotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
SD4933MRActiveM177MRLoose Piece_-77.6Distributor reported inventory date: 2016-02-29
Distributor NameRegionStockMin. order

(*) 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
(**) The Material Declaration forms available on 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.