HFD4/5 Signal Relay – DPDT 2A/250V, 5V Coil, 3ms Switching DIP-8 Industrial Grade

Ultra-Compact Power Relay for Precision Automation & Control Circuits

The HFD4/5 is a high-speed DPDT signal relay engineered for industrial automation and control systems. With its 2A/250V switching capacity and ultra-fast 3ms response time, this compact relay delivers precise circuit control in space-constrained applications.

3ms Response Time & 2.5kV Isolation – Reliable Switching for Sensitive Electronics

• DPDT (2 Form C) contacts – controls two independent circuits simultaneously
• 5VDC coil (178Ω) – low 140mW power consumption for energy-efficient designs
• AgPd/Au contacts – ensures long lifespan (>100,000 cycles) in high-frequency switching
• 2.5kV coil-contact isolation – prevents leakage in sensitive measurement circuits
• -40°C to +85°C operation – reliable performance in harsh environments

Why Engineers Specify This Relay

• Space-Saving Design: 10×6.5mm DIP-8 package fits PLC I/O modules, test equipment, and HVAC controls
• Medical/Industrial Ready: Closed construction resists dust in patient monitors and factory automation
• Simplified Integration: Standard DIP footprint works with existing PCB layouts

Typical Applications:

• Circuit isolation in CNC machine control panels
• Safety interlocking for industrial robotics
• Mode switching in medical diagnostic equipment
• Power routing for telecom base station modules

HFD4/5 Signal Relay Specifications Table