MGV125-26-P55

Overview

MGV125-26-P55 is a GaAs varactor diode from MACOM Technology Solutions, housed in the P55 package. It operates within a frequency range of 0.5 to 3 GHz. The device features a capacitance ratio (Cmax/Cmin) of 4:1 at a reverse voltage of 28 V. Key electrical parameters include a maximum capacitance of 2.35 pF at 4 V and 1 MHz, with a minimum capacitance of 0.59 pF at 28 V. It exhibits a typical Q factor of 100 at 1 GHz and 10 V reverse bias. The component supports a maximum DC reverse voltage of 28 V and has a series resistance of 1.5 ohms.

Feature Summary

• Utilizes Gallium Arsenide (GaAs) technology for high-performance RF applications
• Provides a 4:1 capacitance ratio under specified reverse voltage conditions
• Designed for low loss with a typical Q factor of 100 at 1 GHz

Applications

• RF tuning circuits
• Voltage-controlled oscillators (VCOs)
• Phase shifters

Procurement Notes

Verify the specific suffix 'P55' against official MACOM documentation to confirm the exact package type and tape-and-reel specifications. Ensure that the required capacitance ratio and Q factor meet the design constraints for the target frequency band. Cross-reference the datasheet for absolute maximum ratings to prevent overvoltage damage during operation.

Selection Notes

Select this component when a high capacitance ratio is required for wideband tuning applications. The GaAs construction offers superior performance compared to silicon alternatives in RF environments. Consider the P55 package dimensions for PCB layout compatibility. Evaluate the trade-off between capacitance variation and Q factor based on the specific circuit requirements.

Part Context

The MGV125-x series represents MACOM's line of high-Q varactor diodes designed for microwave and RF applications. These devices are part of the company's portfolio of passive components supporting signal generation and processing. The MGV125-26 variant specifically targets frequencies up to 3 GHz, providing reliable performance in communication systems.

Replacement Considerations

Consult MACOM's official substitution guide for direct replacements. Verify pinout compatibility and electrical parameter equivalence before integrating alternative components into existing designs.