MML4402-GM3

RF Diode Overview

The MML4402-GM3 is a single PIN diode from the MML4400 series, manufactured by Microchip Technology. It features a peak reverse voltage of 75V and operates within a frequency range extending up to 18 GHz. The device exhibits a maximum capacitance of 2 pF at 0V bias and 1 MHz, with a typical resistance of 1.5 ohms at 100 mA forward current and 100 MHz. Packaged in a compact 2-SMD no-lead form factor, it supports an operating temperature range from -55°C to +150°C. This silicon-based component is designed for high-voltage and high-power RF applications requiring reliable switching performance.

RF Diode Feature Summary

• High-frequency operation capability suitable for microwave and RF signal routing
• Robust thermal stability enabling functionality across extended industrial temperature ranges
• Compact surface-mount footprint facilitating automated assembly and space-constrained designs

RF Diode Applications

• RF switch matrices for communication systems
• Phase shifters in antenna arrays
• Attenuator circuits in test and measurement equipment

RF Diode Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package and material specifications. Ensure compatibility with RoHS3 standards if required by your manufacturing process. Cross-reference the manufacturer part number with authorized distributor listings to confirm current availability and lead times. Validate that the selected variant matches the intended electrical requirements for your specific circuit design before placing orders.

RF Diode Selection Notes

Select this component when a single PIN diode configuration is required for high-frequency switching applications. Consider the 75V reverse voltage rating and 2 pF capacitance characteristics for impedance matching in RF paths. Evaluate the 2-SMD package size against board space constraints. Compare performance metrics such as on-resistance and carrier lifetime against alternative devices in the MML4400 family to ensure optimal system performance.

RF Diode Part Context

The MML4402-GM3 belongs to the MML4400 series of non-hermetic plastic PIN diodes produced by Microchip Technology. This series is engineered for general-purpose RF and microwave applications. The device utilizes silicon technology to provide consistent performance in switching and attenuation roles. It is distinct from other series members by its single-diode configuration and specific electrical parameters tailored for high-speed signal control.

RF Diode Replacement Considerations

Direct substitutes within the same series include the MML4402-GM2, which shares similar electrical characteristics but may differ in packaging or material compliance. Verify pinout compatibility and thermal resistance values when cross-referencing with other manufacturers' PIN diodes. Ensure that any replacement maintains the required reverse voltage and capacitance specifications for the target application.