0105-50

Overview

The Microsemi Corporation 0105-50 is an RF NPN transistor designed for high-frequency applications. It features a collector-emitter breakdown voltage of 65V and operates up to 500MHz. The device is housed in the 55JT package and supports a junction temperature of 200°C. It is specified for Class AB operation within the Defcom frequency range of 100 to 500 MHz, delivering 50 Watts of power at 28 Volts.

Feature Summary

• High-power RF capability with 50W output at 28V
• Wide frequency operation up to 500MHz
• Robust thermal performance supporting 200°C junction temperature

Applications

• Defcom communication systems (100-500 MHz)
• Class AB RF power amplification
• Military radio transmitter stages

Procurement Notes

Verify component authenticity through authorized Microsemi distributors or certified suppliers. Request original datasheets and test reports to confirm electrical parameters match the 0105-50 specifications. Ensure packaging integrity matches the 55JT form factor. Check for RoHS compliance status if required by project regulations. Validate supplier credentials against official manufacturer lists to avoid counterfeit components.

Selection Notes

Select this component when designing RF power stages requiring 50W output in the VHF/UHF bands. Ensure the circuit design accommodates the 65V breakdown limit and 28V supply requirement. Consider thermal management solutions capable of handling the 200°C junction temperature rating. Verify that the 55JT package fits the available PCB footprint and assembly constraints for the target application.

Part Context

This part belongs to the GHZTECH series of RF transistors from Microsemi Corporation. It is functionally related to models like 0105-100 and UMIL60, which share similar Class AB operational characteristics but differ in power ratings. The series targets defense and commercial radio infrastructure markets.

Replacement Considerations

Direct substitutes include the 0105-100 for higher power requirements or UMIL60 for comparable performance. Verify pinout compatibility and thermal resistance values before swapping. Confirm that the alternative part meets the specific 500MHz frequency and 50W power constraints of the original design.