Keithley 3732 Quad 4×28 Reed Relay Matrix Card

Overview

The Keithley 3732 is an ultra-high-density matrix card comprised of four independent banks, each with 4 rows by 28 columns of dry reed relays, providing 448 single-pole crosspoints. The card features bank configuration relays that enable automated switching between multiple matrix configurations: single 4×112, dual 4×56, and the base quad 4×28 arrangement, adapting easily to different application requirements.

Key Features

• Four independent 4×28 banks with 448 single-pole crosspoints
• Optimized dry reed relays with low contact potential and low current offset
• 200 V, 1.2 A carry or 0.75 A switched signal capacity; 15 W, 15 VA
• Bank configuration relays enable multiple matrix size options
• Two-pole mode for differential measurements with automatic pairing
• Analog backplane relays for card-to-card column expansion
• Long-life relays exceeding 10⁹ operations
• Two 78-pin male D-sub connectors for signal and configuration
• Compatible with screw terminal accessories (3732-ST-C or 3732-ST-R)

Applications

• High-channel-count I-V testing with Series 2600B Systems
• Large-scale matrix applications requiring flexible configurations
• Automated test equipment for device characterization
• Integration with Keithley Series 3700A mainframe systems