BLL9G1214L-600U

Overview

The BLL9G1214L-600 is a 600 W LDMOS power transistor designed for L-band radar applications operating between 1.2 GHz and 1.4 GHz. It features an internally matched structure housed in a flanged ceramic SOT502A package with two mounting holes and two leads. Typical performance at VDS = 32 V, IDq = 400 mA, and Tcase = 25 °C includes a power gain of 19 dB, drain efficiency of 60%, and output power of 600 W under pulsed RF conditions (tp = 300 μs, δ = 10%). The device supports a maximum drain-source voltage of 65 V and a junction temperature up to 225 °C.

Feature Summary

• High efficiency and excellent ruggedness suitable for demanding radar environments
• Integrated dual-sided ESD protection providing excellent off-state isolation
• Internally matched design simplifies circuit integration and usage
• Excellent thermal stability and high flexibility regarding pulse formats

Applications

• L-band radar systems operating within the 1.2 GHz to 1.4 GHz frequency range

Procurement Notes

Verify the specific package variant required for the application. The standard BLL9G1214L-600 utilizes the SOT502A flanged ceramic package featuring two mounting holes and two leads. Confirm that the ordering suffix matches the physical package description to ensure mechanical compatibility with the intended heat sink or mounting assembly.

Selection Notes

Select this component for L-band radar designs requiring 600 W output power. Ensure the system can maintain a case temperature of 25 °C during testing to achieve typical performance metrics. Verify that the load mismatch does not exceed VSWR 10:1 across all phases to maintain device ruggedness and prevent damage during class-AB operation.

Part Context

This part belongs to Ampleon's LDMOS L-band radar power transistor series. It is specifically engineered for high-power applications in the L-band spectrum. The product data sheet defines it as a robust solution for radar transmitters, emphasizing its capability to handle significant power levels while maintaining stability and efficiency in pulsed modes.

Replacement Considerations

The BLL9G1214LS-600 serves as a direct alternative, utilizing the SOT502B earless flanged ceramic package with two leads instead of the SOT502A mounting hole configuration. Electrical characteristics remain consistent; verify mechanical fit before substitution.

FAQ

What is the maximum load mismatch the device can withstand?

The device can withstand a load mismatch corresponding to a VSWR of 10:1 through all phases under specified operating conditions.

How is the gate connected in the SOT502A package?

Pin 2 is designated as the gate connection in the SOT502A package outline.

What is the ESD sensitivity classification for this component?

It is classified as C2A for Charged Device Model (CDM) and Class 2 for Human Body Model (HBM).