BLA9G1011L-300GU

Overview

The BLA9G1011L-300GU is a 300 W LDMOS power transistor designed for avionics applications operating between 1030 MHz and 1090 MHz. It features an eared flanged ceramic package (SOT502F) with two mounting holes and two leads. The device provides a typical drain efficiency of 60.5% and a power gain of 19.5 dB at 300 W output power. Key electrical parameters include a drain-source voltage limit of 65 V, a junction temperature rating up to 225 °C, and a gate-source threshold voltage of 2.0 V typ.

Feature Summary

• Integrated dual-sided ESD protection for excellent off-state isolation
• Internally matched for ease of use in broadband operations
• Enhanced ruggedness capable of withstanding high load mismatch
• Excellent thermal stability and high efficiency

Applications

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

Procurement Notes

Verify the specific suffix 'U' against official Ampleon documentation, as the provided datasheet references the 'G' variant without this suffix. Confirm RoHS compliance status and ensure the SOT502F package dimensions match the mechanical constraints of the target assembly. Validate that the ordering information aligns with current manufacturing revisions.

Selection Notes

Select this component for avionics systems requiring high power output within the 1030 MHz to 1090 MHz band. Ensure the design accommodates the SOT502F eared flanged package for proper heat dissipation. Verify that the drive circuit can support the required gate-source voltage and bias conditions for class-AB operation to achieve specified efficiency levels.

Part Context

This part belongs to the BLA9G1011L(S)-300(G) family of power LDMOS transistors from Ampleon. The 'G' suffix typically denotes a specific package variation, while the base model indicates the power and frequency capabilities. This series is engineered specifically for robust performance in demanding radio frequency transmission environments.

Replacement Considerations

Direct substitutes within the same family include BLA9G1011L-300G (SOT502F), BLA9G1011LS-300G (SOT502E), BLA9G1011L-300 (SOT502A), and BLA9G1011LS-300 (SOT502B). Selection depends on the required mounting hole configuration and lead style compatibility with the existing PCB or chassis layout.