D4I1218

RF Circulators And Isolators Overview

The D4I1218 is a coaxial RF isolator manufactured by DiTom Microwave, designed for operation within the 12.00 GHz to 18.00 GHz frequency range. It features SMA-FEMALE connectors and utilizes a dual junction design. Key electrical specifications include an average forward power rating of 10 W, an isolation level of 40 dB, and an insertion loss of 1 dB. The Voltage Standing Wave Ratio (VSWR) is specified at 1.25. The component is housed in a module package with SMA connectors and complies with RoHS3 standards.

RF Circulators And Isolators Feature Summary

• Dual junction coaxial construction for enhanced performance
• High isolation capability of 40 dB across the operating band
• Low insertion loss of 1 dB ensuring signal efficiency
• SMA-FEMALE connector configuration for standard interfacing

RF Circulators And Isolators Applications

• Microwave communication systems requiring signal directionality
• Test and measurement equipment needing source protection
• Radar systems utilizing S-band or C-band frequencies

RF Circulators And Isolators Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to ensure correct connector type and pin configuration. Confirm that the required average forward power rating of 10 W aligns with system thermal constraints. Check RoHS3 compliance status if environmental regulations apply to the final assembly. Ensure SMA-FEMALE interfaces match the mating cable or fixture specifications before integration.

RF Circulators And Isolators Selection Notes

Select this model when high isolation (40 dB) is critical compared to lower-isolation variants like the D3I1218. Consider the 10 W power handling limit relative to peak and average system loads. The 1 dB insertion loss offers a balance between isolation and signal attenuation. Verify that the SMA-FEMALE interface suits the PCB or waveguide transition requirements.

RF Circulators And Isolators Part Context

The D4I1218 belongs to DiTom Microwave's series of broadband and narrowband connectorized RF isolators. It shares the same 12-18 GHz frequency range as other models but differs in isolation and power ratings. For instance, the D3I1218 offers 20 dB isolation and 15 W power handling with lower insertion loss. This part is distinct from the D411218, which may have different dimensional or electrical characteristics.

RF Circulators And Isolators Replacement Considerations

Public confirmed substitutes are not explicitly listed in the provided documentation. The D3I1218 is a related model with different isolation (20 dB) and power (15 W) specs. Direct replacement requires verifying that the alternative meets the 40 dB isolation and 10 W power requirements without compromising system performance.