Finder 43.41.7.005.5000 – 43 Series PCB relays

Why Choose the Finder 43.41.7.005.5000 PCB Power Relay?

The Finder 43.41.7.005.5000 is a compact and reliable 10 A electromechanical PCB power relay designed for electrical switching in industrial automation, electronic control systems and embedded equipment. As part of the Finder 43 Series low-profile PCB relay range, it combines a sensitive 5 V DC operating coil with a single changeover contact and gold-plated silver-nickel contact material, providing dependable switching performance in space-constrained applications.

This relay features a single-pole double-throw (SPDT) contact configuration, also known as one changeover (1 CO) contact, allowing a control circuit to switch between normally open and normally closed connections. Its AgNi + Au gold-plated contacts provide a suitable contact surface for electronic switching applications, while the sensitive DC coil helps minimise operating power consumption. The relay's compact construction enables straightforward integration into printed circuit boards and compatible relay sockets.

With a 5 V DC coil voltage, 10 A rated contact current and 250 V AC rated switching voltage, the Finder 43.41.7.005.5000 is suitable for industrial controllers, automation interfaces, HVAC equipment and electronic switching assemblies. Its low-profile dimensions of 30.2 × 10.2 × 15.4 mm make it particularly useful in equipment where PCB space and component height are important design considerations.

Key Advantages

• Compact 10 A electromechanical power relay designed for PCB applications.
• 5 V DC sensitive coil suitable for low-voltage electronic control systems.
• Single changeover (1 CO / SPDT) contact provides flexible switching between two circuits.
• Gold-plated silver-nickel (AgNi + Au) contacts support reliable electrical switching.
• 250 mW nominal coil power consumption helps reduce control circuit energy requirements.
• 10 A contact rating suitable for industrial and commercial electrical loads.
• 6 kV coil-to-contact impulse withstand voltage provides high electrical insulation.
• 15.4 mm low-profile height enables compact PCB designs.
• Standard RT II flux-proof construction supports PCB soldering processes.
• Suitable for direct PCB mounting or compatible PCB socket installation.

Key Features

• Finder 43.41 low-profile PCB relay series.
• 5 V DC nominal coil voltage.
• 250 mW sensitive DC coil.
• 100 Ω nominal coil resistance.
• 10 A rated contact current.
• 15 A maximum peak contact current.
• One changeover contact (1 CO / SPDT).
• AgNi + Au gold-plated contact material.
• 250 V AC rated contact voltage.
• 400 V AC maximum switching voltage.
• 2,500 VA rated resistive switching load (AC1).
• 6 kV impulse withstand voltage between coil and contacts.
• 4,000 V AC dielectric strength between coil and contacts.
• 3.2 mm contact terminal pitch for PCB installation.
• RT II flux-proof environmental protection.
• Monostable, non-polarised coil operation.
• Compact through-hole PCB mounting design.

Reliable Electrical Switching for Industrial Automation

Electromechanical relays such as the Finder 43.41.7.005.5000 enable low-voltage electronic control circuits to switch separate electrical loads through an electrically isolated contact mechanism. Applying the specified DC voltage to the relay coil generates a magnetic field that operates the internal changeover contact, transferring the common connection between the normally closed and normally open terminals.

The Finder 43.41 relay family is designed for compact PCB-based equipment requiring reliable switching, low coil power consumption and high electrical insulation. The gold-plated AgNi contacts provide a contact surface suited to electronic switching applications, while the 250 mW sensitive coil supports efficient operation from appropriately designed low-voltage control circuits. The relay's reinforced coil-to-contact insulation and compact dimensions make it suitable for integration into industrial controllers, electronic equipment and OEM automation systems.

Typical Applications

• Industrial automation and electronic control systems.
• Printed circuit board switching assemblies.
• PLC interface circuits and electronic controllers.
• Heating, ventilation and air conditioning (HVAC) control equipment.
• Boiler, burner and temperature control systems.
• Alarm systems and electronic security equipment.
• Automatic door and access control systems.
• Commercial electronic equipment and vending machines.
• Medical and laboratory equipment control circuits.
• Power supply monitoring and electronic switching interfaces.
• OEM machinery and embedded control systems.
• Low-voltage control circuits requiring isolated changeover switching.