Finder 43.41.7.005.4000 – 43 Series PCB relays

Why Choose the Finder 43.41.7.005.4000 Low-Profile PCB Relay?

The Finder 43.41.7.005.4000 is a compact and reliable 10 A miniature electromechanical PCB relay designed for dependable electrical switching in electronic equipment, industrial automation and control systems. As part of the established Finder 43 Series low-profile PCB relay family, it combines a sensitive DC coil, changeover contact functionality and space-efficient construction for electronic circuit boards and OEM equipment.

Featuring a 5 V DC sensitive operating coil and a single-pole changeover (SPDT/1 CO) contact configuration, this relay allows low-voltage electronic control circuits to switch separate electrical loads. Its silver tin oxide (AgSnO₂) contacts offer good resistance to contact welding and are suitable for appropriately rated switching applications involving elevated inrush currents.

With a 10 A rated contact current, a 250 V AC nominal contact voltage and a 2,500 VA AC-1 switching capacity, the Finder 43.41.7.005.4000 is suitable for electronic control boards, industrial switching interfaces, lighting control and automated equipment. Its low-profile housing, measuring approximately 28.6 × 10.2 × 15.4 mm, makes it particularly useful where PCB space and assembly height are important.

Key Advantages

• Compact 10 A low-profile PCB relay for electronic and industrial switching applications.
• 5 V DC sensitive coil suitable for compatible low-voltage control systems.
• Single-pole changeover (SPDT/1 CO) contact arrangement provides flexible circuit switching.
• Silver tin oxide (AgSnO₂) contacts offer resistance to contact welding under suitable switching conditions.
• 250 V AC nominal contact voltage for appropriately rated electrical loads.
• 2,500 VA rated AC-1 switching capacity for resistive switching applications.
• 0.25 W nominal coil consumption supports efficient electronic control.
• Low-profile 15.4 mm housing height helps minimise PCB assembly dimensions.
• 6 kV coil-to-contact impulse withstand voltage supports electrical isolation.
• Direct PCB mounting simplifies integration into electronic assemblies.

Key Features

• Finder 43 Series low-profile electromechanical relay.
• 43.41 relay type with one changeover contact.
• 10 A rated contact current.
• 15 A maximum peak contact current.
• 5 V DC nominal coil voltage.
• SPDT (1 CO / Form C) contact configuration.
• 250 V AC rated contact voltage.
• 400 V AC maximum switching voltage.
• 2,500 VA rated AC-1 switching capacity.
• 0.25 W sensitive DC coil.
• Approximately 100 Ω nominal coil resistance.
• Approximately 50 mA nominal coil current.
• Silver tin oxide (AgSnO₂) contact material.
• 6 ms operate time and approximately 4 ms release time.
• −40 to +85 °C operating temperature range.
• RT II flux-proof environmental protection.
• 3.2 mm terminal pin pitch.
• 10 million mechanical operations under specified test conditions.
• Compact housing measuring approximately 28.6 × 10.2 × 15.4 mm.

Reliable Low-Profile Switching for Electronic Control Systems

Electromechanical relays such as the Finder 43.41 operate by energising an electromagnetic coil to change the position of their electrical contacts. The SPDT contact configuration provides common, normally open and normally closed connections, enabling electronic controllers to switch or route electrical circuits while maintaining galvanic separation between the control and load sides.

The Finder 43 Series is designed for compact electronic assemblies requiring dependable switching performance and efficient use of installation space. The 5 V DC sensitive coil supports integration into appropriately designed electronic control circuits, while AgSnO₂ contact material, reinforced insulation and low-profile PCB construction make this model suitable for professional industrial and commercial equipment.

Typical Applications

• Printed circuit board assemblies and electronic control modules.
• Industrial automation and machinery control interfaces.
• Microcontroller-based switching circuits with suitable relay drivers.
• Building automation and equipment control systems.
• Lighting control and appropriately rated inrush-current loads.
• Alarm systems and electronic switching equipment.
• Automatic doors, gates and access control equipment.
• Heating, ventilation and air-conditioning control boards.
• Vending machines and automated commercial equipment.
• OEM electronic products and embedded control systems.