MA46H503-1056

Overview

The MA46H503-1056 is a Gallium Arsenide (GaAs) hyperabrupt tuning varactor diode manufactured by MACOM Technology Solutions. It features a constant gamma of 1.5, providing linear capacitance tuning characteristics over a specified voltage range. The device utilizes an OM-CVD epitaxial process for high cutoff frequency performance and reliability. It is housed in the hermetically sealed Case 1056 package, which supports surface mount installation and can be screened to JANTX levels for high-reliability applications. The component operates within a temperature range of -65°C to +150°C.

Feature Summary

• Hyperabrupt junction design with constant gamma of 1.5 for linear tuning
• Hermetically sealed Case 1056 package suitable for high-reliability screening
• Silicon nitride protected junctions ensuring low leakage current
• Fabricated on OM-CVD GaAs material for high quality factor

Applications

• Voltage-controlled oscillators (VCOs)
• Phase-locked loops (PLLs)
• RF tuning circuits requiring linear capacitance variation

Procurement Notes

Verify the specific datasheet revision and JANTX screening availability directly with the manufacturer or authorized distributors before procurement. Confirm that the Case 1056 hermetic seal meets the environmental requirements of the target application. Ensure compatibility with the required soldering profiles for ceramic metal-sealed cofired packages.

Selection Notes

Select this component when a constant gamma of 1.5 is required for linear tuning applications. The MA46H503-1056 is appropriate for designs needing high Q-factor and hermetic sealing. Compare against other MA46H series variants if different gamma values (e.g., 0.75 or 1.25) or non-hermetic packages are sufficient for the system constraints.

Part Context

This part belongs to the MA46H series of surface mount GaAs tuning varactors from MACOM. The series includes variants with different gamma constants (0.5, 0.75, 1.25, 1.5) to suit various tuning linearity needs. The MA46H503 specifically denotes the hyperabrupt junction with a gamma of 1.5, distinguishing it from abrupt or lower-gamma hyperabrupt counterparts in the same family.

Replacement Considerations

Direct replacements within the MA46H-1056 family include MA46H500 (gamma 0.5), MA46H501 (gamma 0.75), and MA46H502 (gamma 1.25). Verify that the alternative gamma value aligns with the circuit's tuning linearity requirements. Non-hermetic surface mount packages like MA46H504 may serve as functional substitutes if hermeticity is not critical.