MA46603-276

Overview

The MA46603-276 is a GaAs abrupt junction tuning varactor from the MA46600 series. It features a breakdown voltage of 30 V minimum and a total capacitance of 0.6 pF at -4 V reverse bias. The device provides a capacitance ratio of 2.8 between -4 V and 30 V, with a minimum Q factor of 6500 at 50 MHz. Reverse current is limited to 100 nA maximum at 24 V.

Feature Summary

• High Q factor exceeding 6500 for broadband high-frequency performance
• Abrupt junction design ensuring large capacitance variation with voltage
• Low leakage current characteristics suitable for sensitive RF circuits

Applications

• Voltage controlled oscillators (VCOs)
• Voltage tunable filters
• Amplifier circuits

Procurement Notes

Verify the specific suffix against official MACOM documentation to confirm package style and case parasitics. Ordering requires specifying the desired case designation as a suffix to the model number. Capacitance values may vary slightly depending on the selected case style or chip form.

Selection Notes

Select this component for applications requiring high Q factors in L through Ka bands. Ensure the required capacitance matching tolerance aligns with standard ±10% specifications or request tighter matching. Verify that the operating temperature range fits within the specified limits for the chosen package.

Part Context

This part belongs to the MA46600 series of microwave tuning varactors designed for high reliability and low leakage. The series offers constant gamma abrupt junctions and is available in various ceramic packages and chip forms to suit different integration requirements.

Replacement Considerations

Other parts in the MA46600 series offer different capacitance values and Q factors. Select based on specific circuit needs for capacitance ratio and frequency response.

FAQ

What is the junction type of the MA46603?

The MA46603 features an abrupt junction with a gamma value of 0.5.

How does the package affect electrical parameters?

Case parasitics such as Cp and Ls vary by package style, which can influence the total capacitance ratio.