RF5L05500CB4

Overview

The RF5L05500CB4 is an obsolete RF power LDMOS transistor manufactured by STMicroelectronics. It operates within the frequency range of HF to 250 MHz and delivers a continuous output power of 550 W at a drain-source voltage (Vds) of 50 V. The device utilizes silicon technology and is housed in a Reel package. Key electrical characteristics include high efficiency and linear gain operations, with integrated ESD protection. It supports a large positive and negative gate-source voltage range, facilitating improved Class C operation. The component complies with European directive 2002/95/EC.

Feature Summary

• High efficiency and linear gain operations for RF power amplification
• Integrated electrostatic discharge (ESD) protection
• Large positive and negative gate-source voltage range supporting Class C operation

Applications

• HF to 250 MHz RF power amplifier stages
• Industrial radio frequency heating applications
• Plasma generation systems

Procurement Notes

This component is officially classified as obsolete by the manufacturer. Verification of availability requires checking distributor stock lists or secondary market channels, as direct manufacturing supply has ceased. Designers should confirm end-of-life status and lead times carefully before integration into new production cycles.

Selection Notes

Engineers selecting this part must account for its obsolete status and limited future supply. Alternative components from the same family or newer generations should be evaluated for pin compatibility and thermal performance. Verify that the 50 V rating and 550 W power handling meet specific circuit requirements without exceeding absolute maximum ratings.

Part Context

The RF5L05500CB4 belongs to STMicroelectronics' RF5L series of LDMOS transistors designed for high-power RF applications. This series targets industrial and broadcast frequencies where robust power handling and linearity are critical. The CB4 suffix typically denotes specific packaging or testing configurations within the product line.

Replacement Considerations

As an obsolete part, no official direct replacement is listed in current catalogs. Engineers should consult STMicroelectronics for recommended upgrades within the RF5L or RF3L families, ensuring equivalent power, voltage, and frequency specifications are maintained.