New Industry Products

Ampleon Unveils LDMOS Transistors for Frequencies up to 2 GHz

July 21, 2021 by Gary Elinoff

The two new series of wideband devices support both continuous wave (CW) and pulsed signal operation at powers of up to 100 watts.

The BLP15M9Sxxx and the BLP15H9Sxxx series are rated at 32V and 50V, respectively. The former is based on Ampleon’s 9th generation LDMOS (laterally-diffused metal-oxide-semiconductor) technology while the latter employs the company’s high-voltage LDMOS technology process.

The BLP15M9Sxxx and the BLP15H9Sxxx series. Image courtesy of Ampleon

The BLP15MSxxx family is composed of devices offering 100, 70, and 30 watts and attain efficiencies of up to 78%. The BLP15H9Sxxx family includes semiconductors delivering 100W, 30W, and 10W and reach efficiencies of 65% or better. These new devices are part of a wide range of Ampleon 12, 32, and 50-volt broadband amplifiers.


The 50 Volt BLP15H9S Series

The three members of this series are LDMOS driver transistors aimed at applications in the frequency range from HF to 2 GHz. The units are the 10W BLP15H9S10, the 30W BLP15H9S30, and the 100W BLP15H9S100

For the BLP15H9S10 and the BLP15H9S30, Ampleon offers typical responses when testing for Pulsed RF and CW.






Pulsed RF


Pulsed RF


Frequency in MHz

Power / Gain / Efficiency

Power / Gain / Efficiency Power / Gain / Efficiency Power / Gain / Efficiency


10W / 21dB / 65%


30W / 22dB / 63%


1030 to 1090

11W / 22dB / 63%


325 to 352 


30W / 28dB / 68%

360 to 450 


10W / 18dB / 60%


30W / 17dB / 60%

1025 to 1150


30W / 17dB / 50%



For the BLP15H9S100, there is also testing for Terrestrial Digital Video Broadcasting (DVBT)




Pulsed RF




Frequency in MHz

Power / Gain / Efficiency Power / Gain / Efficiency Power / Gain / Efficiency  


100W / 20dB / 62%


1700 to 1850

100W / 16dB / 50%


325 to 352


90W / 25dB / 61%


360 to 450


100W / 16dB / 53%


169 to 223


20W / 23dB / 30%


470 to 700


20W / 20dB / 30%


Applications for the BLP15H9S series include:

  • Broadcast transmitters
  • Industrial, scientific, and medical (ISM) applications


The 32 Volt BLP15M9S Series

These three devices are general-purpose LDMOS power transistors aimed at Industrial, medical and scientific (ISM) applications. The 30 watt BLP15M9S30 and the 70 watt BLP15M9S70 operate from in HF to 2 GHz, while the BLP15M9S100 is specced for HF to 1.5 GHz. Ampleon offers application performance results from HF to 1.4 GHz

      Pulsed RF       CW  
Freq in MHz PWR Gain Efficiency Input Return Loss PWR Gain Efficiency Input Return Loss
30 to 520         25W 20db 55% -3dB
915         35W 17db 78% -22dB
1400 30W 19.3dB 72% -17dB        


The BLP15M9S70

  • For pulsed RF at 1400 MHZ, the output power is up to 70 watts, the gain is 17.6dB, efficiency is 70% and input return loss is -14dB.
  • For CW at 915 MHZ, the output power is up to 70 watts, the gain is 17dB, efficiency is 75% and input return loss is -17dB.


The BLP15M9S100

For CW at 1,400 MHZ, the output power is up to 100 watts, the gain is 16dB, efficiency is 68% and input return loss is -21dB.


Applications for the BLP15M9S series are:

  • RF power amplifiers for CW applications
  • ISM
  • Broadcast transmitter applications


Physical Considerations

The devices are available in SOT1482-1 (straight lead) and SOT1483-1 (Gullwing) plastic packages.


About Ampleon

Created in 2015, Ampleon is shaped by more than 50 years of RF Power leadership. The company envisions to make the world a better place through innovation in high-frequency applications based on advanced LDMOS and GaN technologies. Ampleon has more than 1,600 employees worldwide, dedicated to enabling their customers to be successful with RF Power products through close cooperation and partnership, innovation, and excellent execution. Its innovative, yet consistent portfolio offers products and solutions for 4G LTE and 5G NR infrastructure, industrial, scientific, medical, broadcast, aerospace, and defense applications. For more details on the leading global partner in RF Power, please visit