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MRF18085A from Freescale

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MRF18085A

Manufacturer: Freescale, FREE/MOT

MRF18085A, MRF18085AR3, MRF18085ALSR3 GSM/GSM EDGE, 1.8-1.88 GHz, 85 W, 26 V Lateral N-Channel RF Power MOSFETs

Partnumber Manufacturer Quantity Availability
MRF18085A Freescale, FREE/MOT 33 In Stock

Description and Introduction

MRF18085A, MRF18085AR3, MRF18085ALSR3 GSM/GSM EDGE, 1.8-1.88 GHz, 85 W, 26 V Lateral N-Channel RF Power MOSFETs **Introduction to the MRF18085A RF Power Transistor**  

The MRF18085A is a high-performance RF power transistor designed for use in demanding applications such as industrial, scientific, and medical (ISM) equipment, as well as RF power amplifiers in the HF to VHF frequency range. This N-channel enhancement-mode lateral MOSFET is engineered to deliver robust power output with high efficiency, making it suitable for both continuous-wave (CW) and pulsed operations.  

With a frequency range extending up to 600 MHz, the MRF18085A is capable of delivering up to 85 watts of output power under typical operating conditions. Its high gain and excellent thermal stability ensure reliable performance in high-power RF amplification circuits. The device features a rugged design, capable of withstanding high VSWR (Voltage Standing Wave Ratio) conditions, which enhances its durability in real-world applications.  

Key specifications include a drain-source voltage (VDS) rating of 65V and a typical power gain of 16 dB at 175 MHz. The transistor is housed in a reliable, industry-standard package, facilitating easy integration into existing RF amplifier designs.  

Engineers and designers favor the MRF18085A for its consistent performance, efficiency, and ability to handle high-power RF signals with minimal distortion. Whether used in broadcast transmitters, RF heating systems, or communication amplifiers, this transistor provides a dependable solution for high-power RF applications.  

For detailed operating parameters and application guidelines, consult the manufacturer’s datasheet to ensure optimal performance in specific circuit configurations.

Application Scenarios & Design Considerations

MRF18085A, MRF18085AR3, MRF18085ALSR3 GSM/GSM EDGE, 1.8-1.88 GHz, 85 W, 26 V Lateral N-Channel RF Power MOSFETs

Alternative Part Number

  • BLF182XR --: LDMOS RF power transistor in the same 85 W / 1.8 GHz class with similar gain and supply voltage, suitable as a drop-in replacement in RF amplifier designs.
  • MRFE6VP8600H --: NXP RF power LDMOS device with comparable power capability and ruggedness, widely used where the MRF18085A was applied.
  • PTFA180852E --: 1800 MHz band RF power LDMOS transistor with similar output power and gain characteristics, usable as an alternative with minor matching adjustments.
  • BLF188XR --: High-power LDMOS RF transistor in the same 85W-class VHF/UHF range, offering comparable gain and output power for amplifier designs.
  • PTFA081501E --: LDMOS RF power transistor with comparable 150W-class output and similar frequency coverage, usable as an alternative in RF power amplifier designs.
  • PTF18085 --: Comparable 1.8 GHz LDMOS power transistor with similar output power and gain, usable as an alternative with minor matching adjustments.
  • MRFE6S9045N --: RF LDMOS transistor covering the same frequency range with comparable power capability, a viable cross-reference option.

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