PD55003

Overview

The PD55003 is an N-channel enhancement-mode lateral MOSFET RF power transistor from the LdmoST plastic family. It operates in common source mode at frequencies up to 1 GHz with a drain-source voltage of 40 V and gate-source voltage of ±20 V. The device delivers 3 W output power with 17 dB gain at 500 MHz under 12.5 V supply and 50 mA bias current. It features a PowerSO-10RF package with formed leads, offering excellent thermal stability and linearity for broadband commercial and industrial applications.

Feature Summary

• Common source configuration designed for high gain and broad band performance
• Excellent thermal stability and superior linearity characteristics
• Mounted in the first true SMD plastic RF power package, PowerSO-10RF

Applications

• Car mobile radio systems
• Broadband commercial applications
• Industrial RF applications

Procurement Notes

Verify the specific ordering suffix against the datasheet to confirm lead type. The standard PD55003 designation corresponds to the PowerSO-10RF package with formed (gull-wing) leads. Ensure compatibility with assembly requirements before procurement.

Selection Notes

Select based on required output power and frequency range within the 1 GHz limit. Consider the PowerSO-10RF package dimensions for PCB layout. Verify thermal management capabilities given the junction-to-case thermal resistance of 3.0 °C/W for reliable operation at maximum ratings.

Part Context

This component belongs to the LdmoST Plastic Family of N-channel enhancement-mode lateral MOSFETs manufactured by STMicroelectronics. It utilizes advanced LDMOS technology optimized for RF power applications, providing a balance of high gain, reliability, and ease of assembly in a surface-mount format.

Replacement Considerations

PD55003S is the alternative variant featuring straight leads instead of formed leads within the same PowerSO-10RF package family. Both share identical electrical specifications and functionality.