The Hongfa HFD31/12-L2SR(257) is a surface mount signal relay designed for applications requiring reliable switching performance in a compact, low-profile package. As part of the HFD31 series, this relay is well-suited for densely populated circuit boards and automated assembly processes.

Applications

• Telecommunications Equipment: Used in telecommunication systems for signal routing and switching.
• Instrumentation: Employed in testing and measurement equipment for precise signal control.
• Automated Test Equipment (ATE): Suitable for automated testing systems where reliable switching is critical.
• Security Systems: Utilized in alarm systems and access control devices requiring compact and dependable relay solutions.
• Industrial Control Systems: Integrated into industrial control panels for switching and control functions.

Features

• Surface Mount Design: Allows for automated assembly and soldering on PCBs.
• Low Profile: Compact height enables use in applications with limited vertical space.
• High Sensitivity: Requires low coil power for activation, making it suitable for low-power circuits.
• High Contact Reliability: Ensures consistent and dependable switching performance.
• Long Life: Designed for extended operational lifespan, reducing the need for frequent replacements.

Benefits

• Automated Assembly: Surface mount design enables automated assembly, reducing manufacturing costs and increasing throughput.
• Space Saving: Low profile allows for more components to be placed on a circuit board, reducing overall product size.
• Energy Efficient: Low coil power consumption contributes to energy savings in the application.
• Reliable Performance: High contact reliability ensures consistent and dependable switching, improving system performance.
• Extended Lifespan: Long operational life reduces maintenance requirements and lowers total cost of ownership.

Additional Details

The HFD31/12-L2SR(257) typically features a single-pole double-throw (SPDT) contact configuration. The coil voltage is 12VDC. Contact ratings vary, but they are generally suitable for switching low to medium current and voltage levels. The relay is designed for reflow soldering processes. This relay is compliant with RoHS environmental standards.