The Agilent/Keysight 44728A is a switching module that directs voltage, current, and power in automated test systems. Built around Single-Pole Double-Throw (SPDT) Form-C relays, it provides signal routing and switching functionality for multi-channel test environments. The module integrates into the 44725A/44728A/44729A switching family and pairs with the HP 44728A Terminal Block for signal termination and connection management.
Technical Specifications
• Relay Type: Single-Pole Double-Throw (SPDT) Form-C
• Switching Function: Voltage, current, and power routing
– Key Features
• Form-C relay architecture enables simultaneous break-before-make or make-before-break switching configurations
• Dedicated terminal block interface for external signal connections
• Modular design supports cascade integration with complementary switching modules
– Typical Applications
• Automated voltage and current distribution in test racks
• Power routing and load switching in parametric measurement units
• Multi-channel signal multiplexing for parallel device testing
• System-level power sequencing and fault isolation
– Compatibility & Integration
The 44728A operates as part of a unified switching module ecosystem. It works alongside the 44725A and 44729A modules within the same product family, allowing engineers to build custom switching matrices and test architectures. The associated HP 44728A Terminal Block standardizes external connections and simplifies integration into larger automated test equipment (ATE) frameworks.
