VAT-12A+

Overview

The VAT-12A+ is a coaxial fixed attenuator manufactured by Mini-Circuits, designed for RF interconnect applications. It provides a nominal attenuation of 12 dB with a tolerance of 0.3 dB across a frequency range from DC to 6000 MHz (6 GHz). The component operates at a characteristic impedance of 50 Ohms and features SMA connectors for in-line module integration. It has a maximum power rating of 1.1 W and a typical maximum VSWR of 1.7. The device utilizes silicon technology and supports an operating temperature range from -45°C to +100°C.

Feature Summary

• Provides stable 12 dB attenuation with excellent flatness across the specified frequency band
• Utilizes silicon technology for reliable performance in coaxial fixed attenuator designs
• Features SMA connectors for direct in-line module integration

Applications

• RF signal level control in communication systems
• Test and measurement equipment requiring precise attenuation
• Circuit protection and impedance matching in RF chains

Procurement Notes

Verify the specific datasheet version and compliance documentation directly with Mini-Circuits or authorized distributors before procurement. Ensure that the SMA connector type and power handling requirements align with the system design constraints. Confirm environmental specifications such as the operating temperature range and material composition for compatibility with the intended application environment.

Selection Notes

Select the VAT-12A+ when a fixed 12 dB attenuation is required within the DC to 6 GHz bandwidth. Consider its 1.1 W power rating and 50 Ohm impedance for standard RF applications. Evaluate the -45°C to +100°C operating range against environmental conditions. Compare with other series like FW-12A+ if higher frequency operation up to 12 GHz is necessary.

Part Context

The VAT-12A+ belongs to Mini-Circuits' VAT-A series of fixed attenuators. This series is characterized by its wide frequency coverage from DC to 6000 MHz and consistent attenuation flatness. These components are part of Mini-Circuits' portfolio of passive RF devices designed for robust performance in various electronic systems.

Replacement Considerations

For applications requiring similar attenuation but extended frequency response, consider the FW-12A+, which covers DC to 12000 MHz. Both parts share the 12 dB attenuation value and 50 Ohm impedance characteristics.