HV-AT(9)-PJ

Overview

The HV-AT(9)-PJ is a fixed RF attenuator manufactured by Hirose Electric Co Ltd. It provides a nominal attenuation of 9dB with a 50 Ohm impedance. The component operates within a frequency range of 0 Hz to 67 GHz and supports a power rating of 1W. It utilizes a 1.85mm single-row module connector interface. This part belongs to the HV-AT series and is designed for high-frequency signal processing applications requiring precise attenuation.

Feature Summary

• Provides fixed 9dB attenuation for RF signal management
• Operates up to 67 GHz frequency range
• Features 1.85mm single-row module connector interface
• Supports 1W power handling capacity

Applications

• High-frequency test and measurement equipment
• RF signal chain attenuation stages
• Microwave system integration
• Communication infrastructure testing

Procurement Notes

Verify availability status as this component has been officially discontinued by Hirose Electric Co Ltd. Check for End-of-Life (EOL) notifications and Product Change Notices (PCN) dated August 2023. No replacement products are planned by the manufacturer. Sourcing should focus on remaining stock from authorized distributors or secondary markets, ensuring authenticity through verified supply chains.

Selection Notes

Select this component only if the specific 9dB attenuation value and 1.85mm connector type match the design requirements. Consider the 67 GHz upper frequency limit and 1W power rating against system specifications. Due to discontinuation, evaluate alternative solutions early in the design phase to ensure long-term supply stability and compatibility with existing 50 Ohm systems.

Part Context

The HV-AT(9)-PJ is part of the HV-AT series of coaxial attenuators from Hirose Electric. These components are designed for use with 1.85mm connectors, which are compliant with IEC standards. The series offers various attenuation values, with the PJ suffix indicating a plug-jack configuration. This specific model represents a fixed attenuation solution within the broader family of high-frequency passive components.

Replacement Considerations

Hirose Electric has confirmed no plan to sell replacement products for this discontinued item. Designers must identify third-party equivalents that match the 1.85mm interface, 9dB attenuation, and 67 GHz performance characteristics. Verify mechanical dimensions and electrical parameters carefully when selecting substitutes.