ZAS-3BR+

Overview

The ZAS-3BR+ is a bi-phase pin diode switch manufactured by Mini-Circuits, designed for RF and microwave applications. It operates within a frequency range of 1 MHz to 200 MHz and maintains a characteristic impedance of 50 ohms. The component features coaxial construction with BNC connectors, housed in the M22 case style. Key electrical specifications include a maximum insertion loss of 2.5 dB and a maximum input power of 1 W continuous wave. This single-pole single-throw (SPST) switch provides reliable signal path control in high-frequency circuits.

Feature Summary

• Bi-phase pin diode switching technology for signal path control
• Coaxial construction ensuring stable 50-ohm impedance matching
• Integrated BNC connectors for straightforward circuit integration

Applications

• RF signal routing in communication systems
• Test and measurement equipment signal switching
• Microwave circuit isolation and selection

Procurement Notes

Verify the specific datasheet version when ordering, as Mini-Circuits may update electrical parameters or mechanical drawings over time. Confirm that the BNC connector type matches your system requirements. Ensure the operating frequency range aligns with your application needs, as performance characteristics can vary across the 1 MHz to 200 MHz spectrum. Check for any specific handling instructions related to the pin diode construction.

Selection Notes

Select the ZAS-3BR+ when a compact SPST switch is required for frequencies up to 200 MHz. Consider its low insertion loss of 2.5 dB for minimal signal degradation. The 1 W power handling capability suits moderate power applications. Compare it against other Mini-Circuits switches if higher frequencies or different connector types are needed. Evaluate the M22 package size for space-constrained designs.

Part Context

The ZAS-3BR+ belongs to the ZAS series of bi-phase pin diode switches from Mini-Circuits. This series offers various attenuation levels and configurations for RF applications. The ZAS-3BR+ specifically addresses the need for a 3 dB attenuated switch path, combining switching functionality with fixed attenuation. It complements other components in the Mini-Circuits portfolio for complete RF front-end solutions.

Replacement Considerations

Direct substitutes include the ZAS-3 without the plus suffix, noting potential environmental compliance differences. Other ZAS series variants like ZAS-1 or ZAS-2 offer different attenuation values but share similar operational principles. Verify compatibility with existing PCB layouts and connector types before substitution.