BLF2425M7LS250P:11

Overview

The BLF2425M7LS250P is a 250 W LDMOS power transistor designed for Industrial, Scientific and Medical (ISM) applications at frequencies from 2400 MHz to 2500 MHz. It is assembled in an earless flanged balanced ceramic package (SOT539B). The device is optimized for high-power CW applications, offering high efficiency and excellent ruggedness. Typical performance at Tcase = 25 °C includes a drain efficiency of 51%, power gain of 15 dB, and output power of 250 W at VDS = 28 V and f = 2450 MHz. The drain-source voltage rating is 65 V, with a junction temperature limit of 225 °C.

Feature Summary

• High efficiency and excellent thermal stability
• Integrated ESD protection
• Internally matched for broadband operation
• Excellent ruggedness under load mismatch conditions

Applications

• RF power amplifiers for CW applications in the 2400 MHz to 2500 MHz frequency range
• Industrial heating systems
• ISM band applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package version and compliance status. Ensure that the procurement channel provides valid traceability for this RF component. Confirm RoHS Directive 2002/95/EC compliance requirements are met by the supplied units. Check for any recent product status updates or superseding documents before finalizing orders.

Selection Notes

Select the BLF2425M7LS250P when an earless flanged ceramic package (SOT539B) is required for ISM band applications between 2400 MHz and 2500 MHz. This variant differs from the BLF2425M7L250P only in the absence of mounting ears on the flange. Ensure the design accommodates the 65 V drain-source voltage limit and manages thermal resistance effectively to maintain junction temperatures within the 225 °C maximum rating during continuous wave operation.

Part Context

This component belongs to Ampleon's LDMOS power transistor family targeting the 2.4 GHz ISM band. It shares core electrical characteristics with the BLF2425M7L250P but utilizes the SOT539B earless package instead of the SOT539A flanged package. Both devices are intended for high-power CW applications requiring robust performance in industrial and scientific environments.

Replacement Considerations

The BLF2425M7L250P serves as a direct functional substitute if the application can accommodate the flanged SOT539A package with mounting holes. Verify mechanical clearance and mounting hole alignment before swapping between the earless SOT539B and flanged SOT539A versions.