250W LDMOS for solid

Ampleon has announced a 250W RF power transistor for solid-state cooking and ISM (industrial, scientific and medical) applications in the 2.4 to 2.5GHz frequency band.

Called BLP2425M10S250P, it is made on the company's tenth-generation LDMOS process and operates with 67% drain efficiency.

Described as "cost-optimised" by Ampleon, it swaps the traditional ceramic package for plastic to better compete with traditional 2.45GHz magnetrons. "The ability to accurately adjust output power and frequency make solid-state RF amplifiers particularly suitable for industrial applications such as plasma generation, and for the emerging solid-state cooking market," it said, claiming longer life compared with magnetrons, and easier implementation of closed-loop control with LDMOS RF power technology.

The body of the four-tab package is ~21 x 10 x 4mm (16 x 21mm with tabs/leads) and thermal thermal resistance from junction to case is 0.32 K/W (80°C case, 250W).

The fifth (source) terminal is the frame/pad of the package

The device is effectively two transistors with a common source. Gates are expected to be driven in parallel and drains taken out in parallel.

Operation is from a 32Vdc supply (65V abs max).

Power gain is typically 15dB and input return loss -15dB (Class-AB, 100mA drain, 100μs pulses, 10% duty, 25°C case)

The product page is here

Samples available directly from Ampleon or authorised distributors RFMW and Digi-Key.