MA4P7493-134

RF Diode Overview

The MA4P7493-134 is a silicon PIN diode chip designed for switch and attenuator applications. It features a reverse voltage of 150 VDC, a capacitance of 0.05 pF at -10 V, and a series resistance of 1.8 Ω at 500 MHz. The device has a carrier lifetime of 8 µs, an I-region length of 19 mils, and a thermal resistance (Theta) of 60 °C/W. Physical dimensions include a 13 x 13 mil chip size, 3.8 mil anode diameter, and 6.5 mil thickness.

RF Diode Feature Summary

• Hermetically sealed Cermachip construction with glass passivation
• Optimized for low distortion in attenuator and switch circuits
• Suitable for broadband, high frequency micro-strip hybrid assemblies

RF Diode Applications

• RF switching circuits
• Low distortion attenuator circuits
• Broadband high frequency micro-strip hybrid assemblies

RF Diode Procurement Notes

Verify the specific electrical parameters against the latest official datasheet before integration. Confirm that the hermetic Cermachip package meets the environmental requirements of the target application. Ensure proper handling procedures are followed to prevent contamination or damage to the delicate semiconductor die during assembly.

RF Diode Selection Notes

Select this component when a balance of low capacitance and moderate series resistance is required for RF control applications. The 150 V reverse voltage rating supports specific biasing needs. Consider the 1.8 Ω series resistance at 500 MHz for insertion loss calculations. Verify compatibility with the 13 x 13 mil footprint and mounting surface flatness requirements.

RF Diode Part Context

This part belongs to MACOM's Silicon PIN/NIP Diode Chips family, which utilizes ceramic glass and silicon nitride passivation technology. The series covers various performance requirements for control circuits, offering choices of I-region lengths to minimize parametric trade-offs between low capacitance, low series resistance, and high breakdown voltages.

RF Diode Replacement Considerations

MA4P203-134 offers similar physical dimensions but different electrical characteristics including higher capacitance and lower series resistance.