The HF105F-1/012D-1HSTF(257) is a miniature electromagnetic relay manufactured by Hongfa. It is designed for a wide range of applications where reliable switching is required. These relays are commonly used in automation, control systems, and various electronic devices.

Applications

• Home appliances (e.g., washing machines, refrigerators)
• Industrial automation equipment
• Power supplies
• HVAC systems
• Lighting control systems
• Telecommunications equipment

Features

• Miniature size: Compact design allows for high-density mounting on PCBs.
• High switching capacity: Capable of handling significant current and voltage loads.
• Low coil power consumption: Minimizes energy usage and reduces heat generation.
• High insulation resistance: Provides electrical isolation between the coil and contacts.
• Long life expectancy: Offers reliable performance over an extended period.
• Various terminal types available: Suitable for different mounting methods (e.g., PCB, socket).
• RoHS compliant: Meets environmental regulations for hazardous substances.

Benefits

• Reliable switching: Ensures accurate and dependable operation of circuits.
• Compact design: Enables integration into space-constrained applications.
• Energy efficiency: Reduces power consumption and lowers operating costs.
• Long lifespan: Provides long-term reliability and reduces the need for frequent replacements.
• Versatile applications: Suitable for a wide range of switching tasks.

Additional Details

The 'HF105F' designates the relay series from Hongfa. The '1' indicates a single-pole configuration. '012D' signifies a coil voltage of 12VDC. '1HSTF' specifies the contact material and form (e.g., AgSnO2, SPDT). '(257)' likely represents a specific production batch or internal code. Contact ratings (e.g., 10A at 250VAC) and coil resistance are key electrical parameters. The datasheet provides detailed information on contact configurations, coil characteristics, and mechanical dimensions.