Ampleon BLS9G2731L LDMOS S-Band Radar Power Transistors

Ampleon BLS9G2731L LDMOS S-Band Radar Power Transistors are 400W LDMOS power transistors for S-band applications in the 2700MHz to 3100MHz frequency range. The Ampleon BLS9G2731L transistors deliver high efficiency, excellent thermal stability / ruggedness, and easy power control.

Features

  • High efficiency
  • Excellent ruggedness
  • Designed for S-band radar applications
  • Excellent thermal stability
  • Easy power control
  • High flexibility concerning pulse formats
  • Internally matched for ease of use
  • Integrated dual-sided ESD protection enables excellent off-state isolation
  • Compliant with Directive 2002/95/EC regarding Restriction of Hazardous Substances (RoHS)
  • Ideal for S-band radar applications in the 2700MHz to 3100MHz frequency range

Specifications

  • Limiting values
    • 65V maximum drain-source voltage
    • -6V to 13V gate-source voltage range
    • +225°C maximum junction temperature
  • DC
    • 65V minimum drain-source breakdown voltage
    • 1.5V to 2.5V gate-source threshold voltage range
    • 4µA maximum drain leakage current
    • 85A typical drain cut-off current
    • 400nA maximum gate leakage current
    • 4.2S typical forward transconductance
    • 0.03Ω typical drain-source on-state resistance
  • RF
    • 13dB typical power gain
    • -7dB typical input return loss
    • 47% typical drain efficiency
    • 0.3dB maximum pulse droop power
    • 50ns maximum rise/fall time, 6ns typical
    • 400W minimum output power at 3dB gain compression
  • 2700MHz to 3100MHz frequency range
  • 0.11K/W to 0.18K/W typical junction-to-case transient thermal impedance range
  • SOT502A and SOT502B package options

Resources

  • Application Note AN10896 - Mounting and Soldering of RF Transistors in Air Cavity Packages
  • AR161075 - Measurement results of a Class-AB design for the 2700MHz to 3100MHz band with the BLS9G2731LS-400
Published: 2025-02-12 | Updated: 2025-11-11