MA4PK2004

RF Diode Overview

The MA4PK2004 is a KILOVOLT series PIN diode from MACOM Technology Solutions, rated for 2000 Volts reverse voltage and 25 Amperes forward current. It features a maximum series resistance of 0.20 Ω at 4 MHz and 0.10 Ω typically between 1-100 MHz. Total capacitance is maximized at 3.2 pF at 1 MHz with 100 V reverse bias. The device has a minimum carrier lifetime of 30 µs and a maximum forward voltage of 1.2 V at 1 A. Thermal resistance is 4°C/W for the insulated stud package. Maximum power dissipation is 37.5 W at 25°C case temperature. It utilizes float zone material with Cermachip glass passivation in an insulated threaded stud-only metal-ceramic package.

RF Diode Feature Summary

• Designed for high-power switching in multi-kilowatt HF and VHF applications
• Hermetically sealed metal-ceramic packaging with proprietary Cermachip glass passivation
• Non-magnetic construction suitable for MRI environments up to 3 Tesla
• Insulated threaded stud package for convenient and reliable installation

RF Diode Applications

• Multi-throw kilowatt switches
• Filter switches
• Antenna couplers
• Power amplifier bypass switches
• MRI switches

RF Diode Procurement Notes

Verify the specific part number MA4PK2004 against the official MACOM datasheet DC-0007028 to ensure correct voltage rating and package style. Confirm that the insulated threaded stud configuration matches the system requirements. Check for RoHS compliance status as stated in the documentation. Ensure handling procedures account for electrostatic discharge sensitivity during installation.

RF Diode Selection Notes

Select this component when a 2000 V reverse voltage rating is required for high-power RF switching. The insulated threaded stud package eliminates the need for additional insulators compared to standard stud packages. Consider the thermal resistance of 4°C/W for heat sink design. Verify that the 30 µs carrier lifetime meets the switching speed requirements for the target frequency range.

RF Diode Part Context

This part belongs to the MA4PK200x series within the broader KILOVOLT PIN diode family. It shares similar electrical characteristics with other 2000 V variants but differs in package style. The MA4PK2004 specifically uses Case Style 1038, which is an insulated threaded stud only configuration without a solder lug. This distinguishes it from the MA4PK2001 and MA4PK2003 which include solder lugs.

RF Diode Replacement Considerations

Direct substitutes within the same series include MA4PK2001, MA4PK2002, and MA4PK2003, provided the package style difference (insulated vs. non-insulated, with vs. without solder lug) is acceptable for the mechanical design. No cross-brand replacements are verified in the source document.