The T84S17D214-12 is a hermetically sealed time delay relay manufactured by TE Connectivity. It provides a precise and dependable time delay function across diverse applications. These relays are engineered for ruggedness, enabling them to withstand challenging environmental conditions and deliver consistent performance within a wide temperature spectrum, while also resisting shocks and vibrations.

Applications

• Military and Aerospace: Employed in critical applications within military and aerospace equipment requiring reliable timing functions, such as guidance systems, communication devices, and control panels.
• Industrial Control Systems: Integrated into industrial automation, process control systems, and safety interlocks where precise time delays are essential for efficient and safe operations.
• Transportation: Used in railway signaling, automotive control systems, and aviation electronics to ensure the accurate timing of essential functions.
• Medical Equipment: Incorporated into medical devices necessitating precise timing sequences, including diagnostic and therapeutic equipment.

Features

• Hermetically Sealed: Offers comprehensive protection against environmental contaminants such as moisture, dust, and corrosive gases, thereby ensuring long-term reliability.
• Fixed Time Delay: Provides a precise and consistent factory-set time delay of a specific duration (likely around 12 seconds, inferred from part number).
• Wide Operating Temperature Range: Designed to operate reliably in extreme temperature conditions, making it suitable for demanding environments.
• High Shock and Vibration Resistance: Engineered to withstand significant mechanical stress, ensuring stable performance in mobile or high-vibration applications.
• Compact Size: Facilitates easy integration into tightly packed electronic systems.
• Durable Construction: Constructed with high-quality materials to ensure a long service life and resistance to wear and tear.

Benefits

• Enhanced Reliability: The hermetic seal significantly extends the lifespan of the relay and minimizes the risk of failure due to environmental factors.
• Precise Timing: The fixed time delay ensures accurate and repeatable timing sequences, which are critical for precise control and automation.
• Robust Performance: High resistance to shock, vibration, and extreme temperatures guarantees reliable operation in harsh environments.
• Reduced Maintenance: The durable construction and hermetic seal minimize the need for frequent maintenance and replacements.
• Improved System Safety: Accurate timing sequences contribute to the safe and efficient operation of critical systems and equipment.

Additional Details

This time delay relay typically operates on a DC voltage (likely 28VDC based on similar TE Connectivity products). The hermetic sealing uses a glass-to-metal seal. The specific time delay is factory set and not adjustable by the user. The relay's contacts are designed for high current carrying capacity, suitable for switching a variety of loads. It is likely designed to meet military and aerospace standards. Connection typically uses screw terminals or solder pins for secure attachment to the circuit.