HP 44705A Relay Multiplexer with Connector Block

Overview

The HP 44705A Relay Multiplexer with Connector Block is a compact, high-performance switching solution designed for laboratory and test equipment. This unit combines a reliable electromechanical relay matrix with a sturdy connector block, allowing users to route multiple signal paths with precision and repeatability. Ideal for automation, data acquisition, and instrumentation, the 44705A delivers fast, clean switching while maintaining isolation between channels.

Key Features

• Eight single pole double throw (SPDT) relays in a single housing
• Integrated screw-type connector block for secure wiring
• Low coil power consumption for efficient operation
• Contact rating up to 10 A at 250 V AC
• Mechanical life of 10 million operations per relay
• Compact footprint that fits standard rack mounts
• Gold plated contacts for corrosion resistance and stable performance

Technical Specifications

• Model number: 44705A
• Manufacturer: HP
• Relay type: Electromechanical SPDT
• Coil voltage: 5 V DC
• Contact rating: 10 A / 250 V AC (max)
• Contact resistance: less than 100 mOhm (closed)
• Insulation resistance: 1000 MOhm min at 500 V DC
• Operating temperature range: -20 to 70 deg C
• Storage temperature range: -40 to 85 deg C
• Dimensions: 120 mm x 80 mm x 30 mm (L x W x H)
• Weight: 350 g

Typical Applications

• Automated test equipment (ATE) for switching signal lines
• Data acquisition systems that require multiple channel selection
• Industrial control panels where reliable isolation is critical
• Research laboratories for experiment configuration and reconfiguration
• Medical device testing where precise, repeatable switching is needed
• Telecommunications equipment for routing audio, video, or data signals

By integrating the HP 44705A Relay Multiplexer into your setup, you gain a robust, easy-to-install solution that simplifies wiring, reduces footprint, and enhances overall system reliability.