BLL8H1214LS-500U

Overview

The BLL8H1214LS-500 is a 500 W LDMOS power transistor designed for L-band radar applications in the 1.2 GHz to 1.4 GHz range. It operates with a drain-source voltage of 50 V and delivers a typical power gain of 17 dB at 500 W output power. The device achieves a drain efficiency of 50% under pulsed RF conditions (tp = 300 μs, duty cycle = 10%). It features an earless flanged balanced ceramic package (SOT539B) with four leads and integrated dual-side ESD protection.

Feature Summary

• Internally matched for ease of use
• High flexibility with respect to pulse formats
• Excellent ruggedness and thermal stability
• Compliant with RoHS directives

Applications

• L-band power amplifiers for radar applications in the 1.2 GHz to 1.4 GHz frequency range

Procurement Notes

Verify the specific suffix 'U' against official Ampleon documentation to confirm if it denotes a distinct variant or packaging specification compared to the standard BLL8H1214LS-500 model. Ensure procurement channels provide valid product data sheets matching the exact part number to avoid discrepancies in electrical parameters or physical dimensions.

Selection Notes

Select this component for high-power L-band radar systems requiring robust performance within the 1.2 GHz to 1.4 GHz spectrum. Consider the SOT539B earless flanged package for mounting constraints and verify thermal management requirements based on the specified transient thermal impedance values for the intended pulse width and duty cycle.

Part Context

This device belongs to the BLL8H1214L(S)-500 series of LDMOS L-band radar power transistors manufactured by Ampleon. The 'LS' designation specifically identifies the earless flanged balanced ceramic package version (SOT539B), distinguishing it from the flanged version with mounting holes (SOT539A).

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet.