D3I4080

RF Circulators And Isolators Overview

The DiTom Microwave D3I4080 is a single-junction ferrite RF isolator designed for operation within the 4 GHz to 8 GHz frequency range. It features SMA female connectors and operates in a module package measuring 1 inch by 0.5 inches by 1 inch. The component supports an average forward input power of 30 W, with a peak input power capacity of 50 W and a reverse input power rating of 2 W. Key electrical specifications include an isolation level exceeding 20 dB, an insertion loss of 0.4 dB maximum, and a Voltage Standing Wave Ratio (VSWR) of 1.25. This device provides high isolation in one direction while maintaining low loss in the other.

RF Circulators And Isolators Feature Summary

• Provides directional signal transmission with high isolation in the reverse direction and low insertion loss in the forward path
• Constructed as a three-port ferrite device suitable for cryogenic environments at or below 77K
• Features a compact module form factor with integrated SMA female connectors

RF Circulators And Isolators Applications

• Quantum computing systems requiring cryogenic signal management
• Aerospace and defense radar front-ends
• Scientific laboratory instrumentation operating at low temperatures

RF Circulators And Isolators Procurement Notes

Verify specific suffix designations when ordering, as variants such as D3I4080YMG-2 indicate magnetically shielded configurations distinct from the standard D3I4080 model. Confirm connector gender availability, as some listings reference male/female options while standard data specifies female. Check current stock status, as availability varies significantly between distributors and production cycles may apply. Ensure environmental requirements align with the component's operational temperature limits if non-cryogenic use is intended.

RF Circulators And Isolators Selection Notes

Select this component when a broadband isolator is required for the 4 to 8 GHz band with moderate power handling capabilities. The 30 W average power rating suits applications needing robust forward signal transmission without excessive thermal dissipation. Consider the physical dimensions of the 1x0.5x1 inch module for PCB or chassis integration constraints. Evaluate the need for magnetic shielding; if present, the YMG suffix variant should be selected instead of the base model to ensure proper performance in sensitive electromagnetic environments.

RF Circulators And Isolators Part Context

The D3I4080 belongs to the D3I4080 series of broadband and narrowband connectorized RF isolators manufactured by DiTom Microwave. It is part of a family of ferrite devices that includes circulators like the D4C4080-2 and D3C4080-2, which share similar frequency ranges but differ in port functionality. These components are typically utilized in high-reliability sectors including defense, aerospace, and industrial applications where stable signal isolation is critical for system integrity.

RF Circulators And Isolators Replacement Considerations

No direct public substitute part numbers are confirmed for the D3I4080. Similar frequency range isolators from other manufacturers would require detailed parameter matching for power, isolation, and VSWR. Variants within the same DiTom series, such as the D3I4080YMG-2, offer additional magnetic shielding but represent a different specification set rather than a direct drop-in replacement.