LET9045S

Overview

The LET9045S is a common source N-Channel, enhancement-mode lateral Field-Effect RF power transistor manufactured by STMicroelectronics. It operates with a drain-source voltage of 28 V and supports a continuous drain current of 300 mA. The device delivers an output power of 59 W at a frequency of 960 MHz with a gain of 17.5 dB. It is housed in a PowerSO-10RF package with straight leads.

Feature Summary

• High gain performance for broadband applications
• Enhancement-mode lateral FET construction
• Designed for commercial RF power transmission

Applications

• Broadband commercial RF amplification
• High gain RF power stages
• Commercial transmitter systems

Procurement Notes

Verify the specific suffix 'S' against the official datasheet to confirm lead configuration and package variant. Check product status as some listings indicate obsolete status. Ensure compatibility with existing PCB footprints for the PowerSO-10RF package before ordering.

Selection Notes

Select this component when high gain and broadband operation are required for commercial RF applications. Consider the 28 V rating and 59 W output capability relative to system power requirements. Verify thermal management needs for the PowerSO-10RF package.

Part Context

This part belongs to the LET9045 family of RF MOSFETs from STMicroelectronics. These devices are lateral DMOS transistors designed for radio frequency power applications. The family offers various voltage and power options for different RF bands.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements.