MA46H204-1056

Overview

The MA46H204-1056 is a surface mount gallium arsenide tuning varactor featuring a hyperabrupt junction with a constant gamma of 1.25 from 2 to 20 volts. It provides a total capacitance of 9.0 pF at 4 V reverse bias and 11.0 pF at 0 V, yielding a capacitance ratio of 10.0. The device exhibits a minimum quality factor of 1500 at 4 V reverse voltage. Absolute maximum ratings include a breakdown voltage of 22 V minimum at 10 µA and a forward current limit of 50 mA at 25°C. Power dissipation is rated at 50 mW at 25°C, derating linearly to 0 mW at the maximum operating temperature.

Feature Summary

• Hyperabrupt junction design optimized for wide bandwidth applications requiring high quality factors
• Silicon nitride protected junctions ensuring low leakage current and high reliability
• Hermetic case style 1056 packaging available for screening to JANTX levels

Applications

• Wide bandwidth Voltage Controlled Oscillators (VCOs)
• Voltage Tuned Filters (VTFs) requiring wide tuning range

Procurement Notes

Verify the specific ordering suffix matches the required package style, as the datasheet indicates case styles are specified by adding the designation to the model number. Confirm that the component meets the necessary environmental or military screening requirements if JANTX level screening is mandated for the intended deployment environment.

Selection Notes

Select this component when designing circuits that demand a large capacitance ratio combined with a high quality factor. The 1.25 gamma characteristic makes it suitable for applications where a very wide tuning range is prioritized over the higher Q-factor characteristics found in lower gamma families.

Part Context

This part belongs to the MA46H200 through MA46H204 family within the MACOM GaAs tuning varactor portfolio. This specific series is distinguished by its 1.25 constant gamma hyperabrupt junction, offering the largest capacitance ratio among the available families while maintaining high quality factors suitable for demanding RF tuning applications.

Replacement Considerations

MA46H203-1056

FAQ

What is the constant gamma value for the MA46H204?

The MA46H204 features a constant gamma of 1.25 measured from 2 to 20 volts.

Is the Case Style 1056 hermetic?

Yes, the Case Style 1056 is hermetic and may be screened to JANTX levels.

What is the maximum forward current rating?

The absolute maximum forward current is 50 mA at 25°C.