Ampleon releases "breakthrough" Si LDMOS devices reaching 80% efficiency for VHF and UHF applications

Ampleon BLF974P BLF978P

Ampleon announced two additions to its 9th generation line-up of high-performance 50 V Si LDMOS high-efficiency RF power transistors. Designed for use in ultra-high-power RF power amplifiers, capable of delivering hundreds of kilowatts, the BLF978P and the BLF974P are highly efficient and have high gain characteristics.

Ampleon - BLF974P, BLF978P

Both power transistors offer an operating efficiency of up to 80% at 225 MHz under Class AB operation. Energy efficiency is an extremely important aspect of kilowatt-output RF systems since the need for effective thermal management is a key design consideration. Also, industrial and scientific applications prioritize thermal design as a critical element to improve system reliability and deliver energy-efficient, cost-saving RF performance.

The transistors’ high power and gain ease the scaling of the amplifier to the high-power levels required by industrial and scientific applications. The 1,200 Watt BLF978P and the 500 W BLF974P, typically offer a power gain of 25 dB at a frequency range of between 225 MHz to 700 MHz.

The BLF978P and the BLF974P are available directly from Ampleon or authorised distributors, RFMW and Digi-Key.