43.61.9.012.4301 Finder Miniature PCB relay 1pole 16A DC 12V

Why Choose the Finder 43.61.9.012.4301 12 V DC 16 A Low-Profile PCB Power Relay?

The Finder 43.61.9.012.4301 is a compact, low-profile electromechanical power relay designed for reliable electrical switching in industrial automation, electronic control equipment and machinery applications. Part of the established Finder Series 43 range, this miniature relay combines a high-current contact arrangement with a space-efficient housing suitable for printed circuit board installation.

Featuring a 12 V DC operating coil and a 16 A single-pole normally open contact, the Finder 43.61.9.012.4301 allows low-voltage electronic control circuits to operate appropriately rated electrical loads. Its single-pole single-throw normally open (SPST-NO) configuration provides straightforward on/off switching for auxiliary circuits, machinery controls, building automation and electronic equipment.

The relay incorporates silver-tin oxide (AgSnO2) contacts, a 400 mW DC coil and a low-profile housing designed for through-hole PCB mounting. Its compact dimensions and reinforced coil-to-contact insulation make it a practical choice for equipment manufacturers and control system designers requiring dependable electrical switching within space-constrained electronic assemblies.

Key Advantages

• 16 A rated contact current supports appropriately rated electrical switching applications.
• 12 V DC operating coil integrates with compatible electronic and industrial control supplies.
• Single normally open contact (1 NO / SPST-NO) provides straightforward load activation and disconnection.
• Silver-tin oxide (AgSnO2) contact material provides robust switching characteristics for suitable electrical loads.
• 400 mW nominal coil consumption supports efficient electronic control circuit design.
• 25 A maximum peak contact current provides additional short-duration current capability within the specified operating limits.
• Low-profile housing helps conserve installation space in electronic assemblies.
• Reinforced coil-to-contact insulation supports electrical separation between control and load circuits.
• Direct through-hole PCB mounting simplifies integration into OEM equipment.
• Monostable operation automatically opens the contact when the coil is de-energised.

Key Features

• Finder Series 43 miniature low-profile power relay.
• 43.61 single-pole normally open configuration.
• 12 V DC nominal operating coil.
• 16 A rated contact current.
• 25 A maximum peak contact current.
• 1 NO / SPST-NO contact arrangement.
• 250 V AC rated contact voltage.
• 400 V AC maximum switching voltage.
• 4,000 VA rated resistive switching capacity (AC1).
• Silver-tin oxide (AgSnO2) contact material.
• 400 mW nominal DC coil power.
• 360 Ω nominal coil resistance.
• 33.3 mA nominal coil current.
• 5 mm contact terminal pitch.
• Monostable, non-latching electromagnetic operation.
• Low-profile through-hole PCB mounting construction.
• Suitable for industrial automation, electronic equipment and general-purpose load switching.

Reliable 16 A Switching for Industrial and Electronic Control Systems

The Finder 43.61.9.012.4301 operates using an electromagnetic coil that controls a normally open electrical contact. When the nominal 12 V DC supply energises the coil, the internal armature closes the contact and completes the connected load circuit. When the coil is de-energised, the contact returns to its normally open position, interrupting the electrical connection.

The Finder 43.61 configuration provides a single normally open switching path, making it particularly useful for equipment requiring straightforward load activation rather than changeover switching. The relay's AgSnO2 contact material and 16 A rating support reliable switching of appropriately specified electrical loads, while the compact housing allows integration into electronic control boards with limited available space.

Its 400 mW coil requires approximately 33.3 mA at the nominal 12 V DC supply, making a suitable relay driver important when interfacing with microcontrollers, PLC outputs or other electronic control circuits. The relay's reinforced coil-to-contact insulation supports separation between control and switched circuits. Engineers should assess load inrush current, inductive characteristics, protective suppression and PCB conductor ratings when designing equipment around this relay.

Typical Applications

• Industrial automation and machinery control circuits.
• Electronic control boards and printed circuit assemblies.
• 12 V DC relay-driven switching interfaces.
• Building automation and electrical control systems.
• Heating, ventilation and air conditioning equipment.
• Boilers, burners and heating control electronics.
• Door and gate automation systems.
• Alarm, monitoring and signalling equipment.
• Vending machines and automated equipment.
• OEM electronic equipment and industrial machinery manufacturing.
• General-purpose normally open switching of appropriately rated electrical loads.