MML4403-GM2/TR

RF Diode Overview

The MML4403-GM2/TR is a PIN diode from the MML4400 series, manufactured by Microchip Technology. It features a dual configuration with two independent diodes housed in a GM3 surface-mount package. Key electrical parameters include a maximum peak reverse voltage of 75V and a maximum diode capacitance of 1.5 pF at 0V bias and 1 MHz frequency. The device exhibits a maximum series resistance of 1 Ohm at 100 mA forward current and 100 MHz frequency. Operating temperature ranges from -55°C to +150°C, with a carrier lifetime of 30 ns and a reverse current of 10 uA.

RF Diode Feature Summary

• Dual independent PIN diode structure for balanced RF signal processing
• Fast switching capability with 30 ns carrier lifetime suitable for high-speed applications
• Low parasitic capacitance design optimized for MRI receiver protection circuits

RF Diode Applications

• MRI receiver protection systems
• RF limiter circuits
• High-frequency switching applications

RF Diode Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and tape/reel specifications. Ensure the component matches the required GM3 or equivalent SMD footprint for your PCB layout. Confirm RoHS compliance status through the manufacturer's latest environmental declaration before procurement.

RF Diode Selection Notes

Select this component when dual independent PIN diodes are required for RF limiting or switching. The 75V breakdown voltage and low capacitance make it suitable for sensitive RF front-ends. Verify that the 1 Ohm series resistance meets the insertion loss requirements of the target circuit design.

RF Diode Part Context

This part belongs to the MML4400 series of silicon PIN diodes designed for non-hermetic plastic SMT applications. The series is engineered for robust performance in demanding RF environments, offering consistent electrical characteristics across the operating temperature range.

RF Diode Replacement Considerations

Check for direct substitutes within the MML4400 series, such as the MML4403-GM3, ensuring package compatibility. Verify pinout and electrical parameters match exactly before substituting. No official cross-references are listed; consult Microchip for qualified alternatives.