BLA8G1011L-300U

Overview

The BLA8G1011L-300 is a 300 W LDMOS power transistor designed for avionics applications operating between 1030 MHz and 1090 MHz. It features an internally matched design for simplified integration. Key electrical parameters include a drain-source voltage of 65 V, a junction temperature limit of 225 °C, and a typical drain efficiency of 56% at 300 W output power. The device provides a power gain of 16.5 dB with a rise time of 14 ns and fall time of 5 ns under pulsed RF conditions.

Feature Summary

• Enhanced ruggedness capable of withstanding high load mismatch
• Integrated electrostatic discharge (ESD) protection
• Internally matched for ease of use in broadband operations
• Excellent thermal stability and high efficiency

Applications

• Avionics transmitter applications in the 1030 MHz to 1090 MHz frequency range

Procurement Notes

Verify the specific package variant required for the application, as the BLA8G1011L-300 family includes SOT502A, SOT502B, SOT502E, and SOT502F configurations. Confirm that the sourcing channel provides official Ampleon documentation matching the requested suffix. Ensure compliance with RoHS directives if environmental regulations apply to the deployment environment.

Selection Notes

Select this component when designing avionics transmitters requiring 300 W output power within the 1030 MHz to 1090 MHz band. Consider the internal matching network to reduce external circuit complexity. Evaluate the enhanced ruggedness specifications against expected Voltage Standing-Wave Ratio (VSWR) conditions to ensure reliable operation under mismatched load scenarios.

Part Context

This part belongs to the BLA8G1011L(S)-300(G) series of power LDMOS transistors manufactured by Ampleon. The series shares identical core electrical characteristics but differs in physical packaging options, including flanged ceramic packages with or without mounting holes and ears. These variations accommodate different mechanical mounting requirements in avionics hardware.

Replacement Considerations

Direct replacements are limited to other variants within the same BLA8G1011L(S)-300(G) family that share the same electrical specifications. Substitution requires verifying compatibility with the specific mechanical footprint, such as SOT502A versus SOT502B, to ensure proper mounting and lead configuration.