D4I9525-3

RF Circulators And Isolators Overview

The D4I9525-3 is an RF isolator manufactured by DiTom Microwave, designed for operation within the 0.95 to 1.225 GHz frequency range. It features SMA male connectors on both input and output ports. The component supports a maximum average forward power of 250 W. Key electrical specifications include an insertion loss of 0.8 dB, a voltage standing wave ratio (VSWR) of 1.25, and an isolation level of 40 dB. The device operates reliably within a temperature range of -20°C to +65°C.

RF Circulators And Isolators Feature Summary

• Provides high isolation performance with 40 dB attenuation in the reverse direction
• Supports high average forward power handling up to 250 W
• Features low insertion loss of 0.8 dB for efficient signal transmission
• Maintains stable VSWR of 1.25 across the operational bandwidth

RF Circulators And Isolators Applications

• L-band satellite communication systems
• GPS receiver front-end protection
• RF signal source isolation
• Transmitter output stage protection

RF Circulators And Isolators Procurement Notes

Verify the specific connector gender configuration against official datasheets, as variations exist within the D4I9525 series. Confirm RoHS compliance status and manufacturing origin prior to order placement. Ensure thermal management requirements align with the specified operating temperature range of -20°C to +65°C. Cross-reference part numbers carefully to distinguish between different connector configurations such as female-female or male-male variants.

RF Circulators And Isolators Selection Notes

Select this component when high power handling and precise L-band isolation are required. The 250 W average power rating makes it suitable for robust transmitter applications. The 40 dB isolation ensures effective protection against reflected signals. Consider the SMA male connector interface for compatibility with existing system cabling. Evaluate thermal dissipation needs based on continuous power usage within the 0.95 to 1.225 GHz band.

RF Circulators And Isolators Part Context

This model belongs to the D4I9525 series of RF isolators from DiTom Microwave. The series includes variants with different connector genders, such as D4I9525 (female-female) and D4I9525-3 (male-male). All variants share similar core electrical performance characteristics including frequency range, power handling, and isolation levels. The series is designed for reliable operation in demanding RF environments.

RF Circulators And Isolators Replacement Considerations

Direct substitutes within the same series include D4I9525 and D4I9525-1, though connector gender differences must be verified. Ensure mechanical footprint and connector type compatibility before substitution. Electrical parameters remain consistent across the series, but physical interface changes may require adapter solutions.