30.22.7.012.0020 Finder miniature relay 2p, 2A DC 12V

Finder 30.22.7.012.0020 – 12 V DC DPDT Miniature PCB Relay with Gold-Plated Contacts

The Finder 30.22.7.012.0020 is a compact 12 V DC miniature electromagnetic PCB relay designed for reliable switching of low-level signals and compatible electrical loads. Part of the Finder 30 Series, this subminiature relay features two changeover contacts (2CO / DPDT), allowing two separate circuits to change state simultaneously from a single control signal.

Its sensitive 200 mW DC coil provides low-power electromagnetic operation, while the silver-nickel contacts with 5 µm gold plating (AgNi/Au) support dependable switching in suitable signal and control applications. With a 2 A rated switching current for specified resistive loads, the relay is ideal for electronic control boards, instrumentation, audio equipment and automation interfaces.

The Finder 30.22.7.012.0020 features a standard dual-in-line (DIL) housing, through-hole PCB terminals and RT III wash-tight construction. Measuring just 20.3 × 10.1 × 11.4 mm, it offers a practical switching solution for compact printed circuit boards and professionally manufactured electronic assemblies.

Key Advantages

• 12 V DC miniature PCB relay for electronic control applications.
• DPDT / 2CO contact arrangement provides two independent changeover circuits.
• 200 mW sensitive coil minimises control power requirements.
• Gold-plated silver-nickel contacts support reliable low-level signal switching.
• 5 µm gold contact plating helps protect contact surfaces against oxidation.
• 2 A rated resistive switching current for compatible electrical loads.
• 3 A maximum contact current, subject to switching conditions.
• 720 Ω nominal coil resistance for predictable control circuit design.
• Compact DIL-style housing saves valuable PCB space.
• Through-hole PCB mounting supports secure integration into electronic assemblies.
• RT III wash-tight construction supports compatible PCB cleaning processes.
• −40 to +85 °C ambient temperature range.
• 1.5 kV impulse insulation between coil and contacts.
• Monostable operation provides automatic contact return when coil power is removed.
• Cadmium-free contact construction for modern electronic manufacturing.

Key Features

• Finder 30 Series subminiature relay.
• Manufacturer part number 30.22.7.012.0020.
• 12 V DC nominal coil voltage.
• 200 mW nominal coil power.
• 720 Ω nominal coil resistance.
• Approximately 16.7 mA calculated nominal coil current.
• DPDT / two changeover contacts.
• 2 A rated switching current.
• 3 A maximum contact current.
• 125 V AC rated resistive switching voltage.
• 30 V DC rated resistive switching voltage.
• 250 V AC maximum switching voltage.
• 110 V DC maximum switching voltage.
• AgNi/Au contact material.
• 5 µm gold plating.
• 10 mW minimum switching load.
• Monostable, non-latching operation.
• Non-polarised DC coil.
• Through-hole PCB solder terminals.
• 5 mm terminal pitch.
• 20.3 × 10.1 × 11.4 mm body dimensions.
• RT III wash-tight protection category.
• −40 to +85 °C operating temperature range.
• Cadmium-free contacts.

How the Finder 30.22.7.012.0020 DPDT PCB Relay Works

The Finder 30.22.7.012.0020 operates using a sensitive electromagnetic coil and two mechanically linked changeover contact sets. Each contact set provides a common terminal, a normally open terminal and a normally closed terminal, enabling the relay to perform two switching functions from one control signal.

When the 12 V DC coil is de-energised, each common terminal is connected to its normally closed contact. Applying the correct DC control voltage energises the coil and transfers both common contacts to their normally open terminals. When the control voltage is removed, the contacts return to their original positions.

This monostable DPDT operation makes the relay useful for signal selection, circuit changeover, equipment control and electronic interface applications. For example, one contact set may switch a compatible load while the second provides a separate status or control function.

The relay's 200 mW sensitive coil is designed to minimise power consumption. With a nominal resistance of 720 Ω, the calculated coil current at 12 V DC is approximately 16.7 mA. The controlling circuit must be capable of supplying this current, and an appropriate flyback suppression method should be considered when switching the coil electronically.

The AgNi/Au contacts feature a 5 µm gold layer, making them particularly suitable for low-level signal switching. Gold plating helps maintain stable contact surfaces in applications where low currents may not be sufficient to break through surface contamination or oxidation on conventional contact materials.

For resistive loads, the relay is specified at 2 A at 125 V AC or 2 A at 30 V DC. Its maximum switching voltages are 250 V AC and 110 V DC, but these maximum voltage figures must not be combined automatically with the 2 A rated current. The permissible load depends on the applicable switching characteristics.

The compact dual-in-line PCB housing supports straightforward integration into printed circuit board layouts. Its RT III wash-tight construction allows compatible cleaning processes during PCB manufacture, provided soldering, washing and drying are carried out according to the manufacturer's recommendations.

Unlike a DIN rail-mounted installation relay, the Finder 30.22.7.012.0020 is intended for direct PCB mounting. Circuit designers must provide appropriate electrical protection, insulation distances and enclosure arrangements for the voltages and loads being switched.

Typical Applications

• Electronic printed circuit boards.
• Low-level signal switching.
• Embedded electronic control systems.
• Industrial automation interface boards.
• Electronic instrumentation and measurement equipment.
• Audio and Hi-Fi electronics.
• Signal routing and changeover circuits.
• Printer and peripheral control electronics.
• Communication and interface equipment.
• Electronic monitoring and indication systems.
• Access control circuit boards.
• Door and gate controller electronics.
• Medical and dental equipment electronics, subject to system-level requirements.
• Compact electromechanical control assemblies.
• Electronic prototyping and PCB development.