Description and Applications
M/A-Com’s MA4E2037 and MA4E2038 single diodes, MA4E2039 anti-parallel pair and MA4E2040 series tee are gallium arsenide beam lead Schottky barrier diodes. These devices are fabricated on OMCVD epitaxial wafers using a process designed for high device uniformity and extremely low parasitics. The high carrier mobility of gallium arsenide results in lower series resistance than a silicon Schottky with equivalent capacitance, resulting in lower noise figure and conversion loss. The diodes are fully passivated with silicon nitride and have an additional layer of a polymer for scratch protection. The protective coatings prevent damage to the junction and the anode air bridge during handling.

FEATUREs
• Low Series Resistance
• Low Capacitance
• High Cut-Off Frequency
• Silicon Nitride Passivation
• Multiple Configurations