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BLF177 150W Transistor P1dB

BLF177 150W Transistor P1dB
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0.10 lbs
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P1dB is an after-market manufacturer of RF power devices. There are several companies manufacturing after-market parts; however, P1dB offers the best performance. The P1dB replacement parts can be dropped into our amplifier circuits and they work perfectly without any circuit re-tuning. These parts outperform the originals in ruggedness. The original BLF177 drain-source max rating is 125V. The P1dB is 170V.

Original NXP/Ampleon BLF177's are no longer available. P1dB is the best and only option.



Symbol Parameter Conditions Min Typ/Nom Max Unit
frange frequency range   1   108 MHz
PL(1dB) nominal output power at 1 dB gain compression     150   W
Test signal: CW
PL output power     150   W
Gp power gain VDS = 50 V; f = 108 MHz; IDq = 100 mA; PL = 150 W   19   dB
ηD drain efficiency VDS = 50 V; f = 108 MHz; IDq = 100 mA   70   %

Features and benefits

  • High power gain
  • Low intermodulation distortion
  • Easy power control
  • Good thermal stability
  • Withstands full load mismatch


  • Industrial and military applications in the HF/VHF frequency range



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