The HF3FF/005-1ZST-257 is a subminiature signal relay manufactured by HongFa. This relay is designed for low-power switching applications where small size and high sensitivity are crucial. The '-257' likely indicates a manufacturing date code or specific production batch.

Applications

• Telecommunications Equipment: Used in telecom devices for signal routing and switching.
• Instrumentation: Employed in test and measurement equipment for switching low-level signals.
• Consumer Electronics: Found in various consumer electronic devices for signal control.
• Medical Equipment: Integrated into medical devices for switching low-power circuits.
• Security Systems: Used in security systems for switching alarm signals.

Features

• Subminiature Size: Extremely compact design for high-density PCB mounting.
• High Sensitivity: Requires very low coil power for activation.
• Contact Form: 1ZST indicates a SPDT (Single Pole Double Throw) contact configuration with a specific terminal type.
• High Insulation Resistance: Provides good electrical isolation between coil and contacts.
• Long Life Expectancy: Designed for a high number of mechanical and electrical operations.

Benefits

• Space Saving: Ultra-compact size allows for integration into very small devices.
• Energy Efficient: Extremely low coil power consumption minimizes energy usage.
• Reliable Switching: Provides dependable performance in low-power signal switching applications.
• Cost-Effective: Offers a competitive price point for signal relay applications.

Additional Details

This specific model operates with a 5VDC coil voltage (005). Consult the official HongFa HF3FF series datasheet for complete technical specifications, including contact ratings (current and voltage, AC and DC), coil resistance, operate and release times, insulation resistance, and safety certifications (e.g., UL, VDE, CQC). The 1ZST designation signifies the contact arrangement and terminal type which is crucial for proper circuit integration. Also consult datasheet for environmental operating conditions and mechanical dimensions.