MML4401-GM3

RF Diode Overview

The MML4401-GM3 is a silicon PIN limiter diode from the MML4400 series, manufactured by Microchip Technology. It features two independent diodes in a non-hermetic plastic package. Key electrical parameters include a maximum peak reverse voltage of 75V and a capacitance of 1.5pF at 0V bias and 1MHz frequency. The series resistance is specified as 2.5 ohms at 100mA forward current and 100MHz frequency. The component operates within a temperature range of -55°C to +150°C and is housed in a 4-SMD, no-lead package.

RF Diode Feature Summary

• Dual independent PIN diode configuration for balanced RF signal handling
• Non-hermetic plastic construction suitable for standard surface-mount assembly
• High thermal stability with an extended operating temperature range up to 150°C

RF Diode Applications

• RF signal limiting and protection circuits
• Microwave switch applications
• Attenuator designs requiring low insertion loss

RF Diode Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to ensure correct packaging and variant selection. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Check for any recent production change notices that may affect material composition or manufacturing site location.

RF Diode Selection Notes

Select this component when dual independent PIN diode functionality is required in a compact SMD footprint. Ensure the 75V reverse voltage rating meets the circuit's peak inverse voltage demands. Verify that the 1.5pF capacitance and 2.5 ohm resistance values align with the target RF frequency performance specifications.

RF Diode Part Context

This part belongs to the MML4400 series of silicon PIN diodes designed for microwave and RF applications. It serves as a robust alternative to hermetically sealed variants, offering comparable electrical performance in a cost-effective plastic package. The series is engineered for high reliability in demanding electronic environments.

RF Diode Replacement Considerations

Consult the official MML4400 series datasheet for direct cross-reference candidates. Evaluate mechanical compatibility with the 4-SMD no-lead package form factor. Verify electrical parameter equivalence, specifically reverse voltage and capacitance, before substituting.