MA4SPS421

RF Diode Overview

The MA4SPS421 is a silicon-glass PIN diode chip manufactured by MACOM Technology Solutions using the patented HMIC process. It features two silicon pedestals embedded in a low-loss substrate, designed for high-power RF applications. The device is rated for a maximum reverse voltage of 200V and can handle a forward current of 250 mA. It supports a power dissipation of 1.8 W, making it suitable for demanding signal switching and attenuation tasks in telecommunications and industrial environments.

RF Diode Feature Summary

• Utilizes patented HMIC process for enhanced performance
• Features dual silicon pedestals embedded in low-loss substrate
• Designed for high current handling capacity
• Provides low noise operation for sensitive RF circuits

RF Diode Applications

• Telecommunications signal switching
• Aerospace RF attenuation systems
• Industrial RF control circuits

RF Diode Procurement Notes

Verify component authenticity through authorized MACOM distributors or direct manufacturer channels. Request official datasheets and test reports to confirm electrical parameters match specifications. Ensure proper handling procedures are followed due to the delicate die structure. Cross-reference part numbers with official MACOM documentation to avoid counterfeit substitutions.

RF Diode Selection Notes

Choose this component when high reverse voltage tolerance and significant current handling are required in compact RF designs. The HMIC technology offers advantages in thermal management and signal integrity compared to standard PIN diodes. Evaluate the 200V rating against system peak voltages and ensure the 250 mA forward current meets load requirements for reliable long-term operation.

RF Diode Part Context

This device belongs to the MA4SPS42X series of silicon-glass PIN diode chips. The series utilizes MACOM's proprietary HMIC fabrication method to achieve superior reliability and performance characteristics. These components are engineered for robust operation in harsh electromagnetic environments typical of modern communication infrastructure.

RF Diode Replacement Considerations

Consult official MACOM documentation for verified substitute part numbers within the MA4SPS42X series. Do not assume cross-compatibility with generic PIN diodes without verifying pinout, voltage ratings, and thermal characteristics.