BLA9G1011L-300U

Overview

The BLA9G1011L-300U is a 300 W LDMOS power transistor designed for avionics applications operating between 1030 MHz and 1090 MHz. It features a flanged ceramic SOT502A package with two mounting holes and two leads. Key electrical parameters include a drain-source voltage of 65 V, a gate-source voltage range of -6 V to +13 V, and a junction temperature limit of 225 °C. At 1060 MHz with 32 V drain supply, it delivers 300 W output power with 19.5 dB gain and 60.5% drain efficiency.

Feature Summary

• Internally matched for ease of use
• Integrated dual-sided ESD protection enables excellent off-state isolation
• Enhanced ruggedness capable of withstanding VSWR = 10:1 through all phases

Applications

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

Procurement Notes

Verify the specific package variant against the ordering information table. The 'L' suffix indicates a flanged ceramic package with two mounting holes and two leads (SOT502A). Confirm that the application environment does not exceed the absolute maximum ratings, particularly the 225 °C junction temperature limit, to ensure device reliability.

Selection Notes

Select this component for broadband avionics transmitter designs requiring high power output near 1 GHz. Ensure the thermal management system can maintain the case temperature at 25 °C for optimal performance metrics. Verify impedance matching networks align with the typical source and load impedances provided in the datasheet for the target operating frequency.

Part Context

This part belongs to the BLA9G1011L(S)-300(G) family of power LDMOS transistors manufactured by Ampleon. The family includes variants with different mechanical configurations, such as earless flanged packages (SOT502B/E) and eared flanged packages (SOT502F), while maintaining identical electrical characteristics for avionics use.

Replacement Considerations

Direct replacements within the same electrical specification are limited to other members of the BLA9G1011L(S)-300(G) family, specifically BLA9G1011LS-300, BLA9G1011L-300G, or BLA9G1011LS-300G, depending on the required mechanical mounting style.