The HFD3/5 is a polarized latching signal relay manufactured by HongFa. This relay is designed for applications requiring low power consumption and stable switching performance. Its latching function allows it to maintain its contact position even when power is removed, making it ideal for battery-powered devices and memory retention applications.

Applications

• Battery-powered equipment
• Remote control systems
• Telecommunications equipment
• Automatic test equipment
• Security systems

Features

• Polarized latching type
• Low power consumption
• Contact form: 2 Form C (DPDT)
• Contact rating: 0.5A at 125VAC / 1A at 30VDC
• Coil voltage: 5VDC
• High sensitivity
• RoHS compliant

Benefits

• Low Power Consumption: Minimizes energy usage, extending battery life in portable devices.
• Latching Function: Retains contact position without continuous power, preserving state during power outages.
• Compact Size: Enables high-density mounting in space-constrained applications.
• Reliable Switching: Provides consistent performance over a long operational life.
• Versatile Application: Suitable for a wide range of electronic devices and systems.

Additional Details

The HFD3/5 relay operates on a 5VDC coil voltage and has a contact rating of 0.5A at 125VAC or 1A at 30VDC. The 2 Form C (DPDT) contact configuration offers flexibility in switching multiple circuits. The insulation resistance is typically 100MΩ minimum at 500VDC. Dielectric strength is 750VAC between coil and contacts and 500VAC between open contacts. The operating temperature range is typically -40°C to +85°C. The latching characteristic is achieved through a polarized design, requiring correct polarity for proper operation. This relay is often used in applications where maintaining a specific state is crucial even during power interruptions. It is typically mounted on PCBs using through-hole soldering.