STMicroelectronics

SD2918

SD2918 Description

The SD2918 from STMicroelectronics is an RF MOSFET designed for high-frequency applications, offering a robust combination of performance and reliability. With a voltage rating of 50V (test) and 125V (rated), this device is optimized for RF amplification in demanding environments. It delivers 30W power output at 30MHz, making it suitable for medium-power RF systems. The 6A current rating and 22dB gain ensure efficient signal amplification with minimal distortion. Packaged in M113 (Tube), the SD2918 is ROHS3 Compliant and REACH Unaffected, aligning with environmental regulations. However, it is marked as Obsolete, so alternative sourcing may be required for long-term projects.

SD2918 Features

• High Gain (22dB): Enhances signal amplification efficiency in RF circuits.
• Robust Power Handling (30W): Supports medium-power RF applications.
• Wide Voltage Range (50V Test, 125V Rated): Ensures durability under varying operational conditions.
• Low Current Test (100 mA): Optimized for precision testing and low-power scenarios.
• MOSFET Technology: Delivers fast switching and low noise, ideal for RF systems.
• M113 Package: Compact and industry-standard, facilitating easy integration.
• RoHS3 & REACH Compliance: Meets stringent environmental and safety standards.

SD2918 Applications

The SD2918 excels in RF amplification for:

• Radio Transmitters & Receivers: Provides stable gain and power for communication systems.
• Industrial RF Equipment: Suitable for high-frequency industrial controls and sensors.
• Amateur Radio (HAM): Ideal for amplifiers in hobbyist and professional setups.
• Broadcast Systems: Ensures clear signal transmission in FM/AM broadcasting.
• Military & Aerospace RF Modules: Reliable performance in critical applications.

Conclusion of SD2918

The SD2918 RF MOSFET is a high-performance component for RF amplification, offering 22dB gain, 30W output, and 50V/125V voltage tolerance. While obsolete, its MOSFET technology, M113 packaging, and compliance with RoHS3/REACH make it a strong choice for legacy or niche RF systems. Engineers should consider this device for medium-power RF applications where reliability and signal integrity are paramount. For new designs, verifying alternative models from STMicroelectronics is recommended.