RF5L051K5CB4

Overview

The RF5L051K5CB4 is a silicon-based RF power LDMOS transistor manufactured by STMicroelectronics. It delivers 1500 W output power at 50 V, operating in the HF to 250 MHz frequency range. Designed as an unmatched FET, it supports both CW and pulse applications with high ruggedness. The device features integrated ESD protection and on-chip RC networks for stability. It is housed in a tray package and exhibits moisture sensitivity.

Feature Summary

• High power and high ruggedness design suitable for demanding environments
• Integrated electrostatic discharge (ESD) protection
• On-chip RC network enabling high stability and ruggedness
• Large positive and negative gate-source voltage range for improved Class C operation

Applications

• Industrial, scientific and medical (ISM) applications
• FM radio broadcasting
• VHF TV transmission
• Aerospace systems

Procurement Notes

Verify current availability status through official STMicroelectronics channels or authorized distributors before integration. Confirm RoHS compliance details and moisture sensitivity level requirements for your manufacturing process. Ensure the specific ordering suffix matches your packaging needs. Check for any recent production discontinuation notices or lifecycle changes that may affect long-term supply.

Selection Notes

Select this component for wideband commercial and industrial applications requiring high power in the HF to 500 MHz range. Consider its unmatched configuration when designing matching networks. Evaluate thermal management capabilities due to high power dissipation. Verify compatibility with both continuous wave and pulsed signal requirements for your specific system architecture.

Part Context

This part belongs to the RF5L series of RF power LDMOS transistors from STMicroelectronics. It serves as a higher-power variant compared to the RF5L051K0CB4, which offers 1000 W. Both devices share similar frequency ranges and application targets but differ in maximum output power ratings. The series is designed for robust performance in broadcast and industrial sectors.

Replacement Considerations

The RF5L051K0CB4 is a related part within the same family offering 1000 W output power. Verify if the lower power rating meets your system requirements. No direct public substitute part numbers are confirmed for immediate replacement without circuit redesign.