30.22.7.009.0020 Finder miniature relay 2p, 2A DC 9V

Finder 30.22.7.009.0020 – 9 V DC DPDT Miniature PCB Relay with Gold-Plated Contacts

The Finder 30.22.7.009.0020 is a compact 9 V DC miniature electromagnetic relay designed for printed circuit board applications requiring reliable signal switching, low coil power consumption and two independent changeover contacts. Part of the Finder 30 Series, this subminiature relay features a DPDT (2CO) contact configuration, making it suitable for electronic control boards, instrumentation and automation equipment.

Featuring a sensitive 200 mW DC coil, the relay provides electromagnetic switching without placing an excessive continuous power demand on compatible control electronics. Its silver-nickel contacts with 5 µm gold plating (AgNi/Au) are particularly useful in low-level signal applications where dependable contact performance is important.

The Finder 30.22.7.009.0020 offers a 2 A rated switching current for specified resistive loads, with a 3 A maximum contact current. Its miniature 20.3 × 10.1 × 11.4 mm housing, through-hole PCB terminals and RT III wash-tight construction make it a practical choice for compact electronic assemblies and professionally manufactured control boards.

Key Advantages

• Compact miniature PCB relay for space-constrained electronic assemblies.
• 9 V DC operating coil for compatible low-voltage control circuits.
• DPDT / 2CO contacts provide two independent changeover switching functions.
• 200 mW coil consumption supports energy-efficient electronic control.
• Gold-plated AgNi contacts help maintain dependable low-level signal switching.
• 2 A rated resistive switching capability for compatible electrical loads.
• 3 A maximum contact current, subject to the applicable switching conditions.
• PCB through-hole mounting allows direct integration into electronic assemblies.
• Standard miniature DIL-style housing supports compact board layouts.
• RT III wash-tight construction is suitable for compatible PCB cleaning processes.
• −40 to +85 °C operating temperature range for demanding environments.
• 5 mm terminal pitch supports accurate PCB layout design.
• Monostable operation returns contacts to their normal positions when coil power is removed.
• Two changeover circuits offer greater control flexibility than a single-pole relay.
• Suitable for electronic equipment, control systems and low-power automation interfaces.

Key Features

• Finder 30.22 miniature electromagnetic relay.
• 9 V DC nominal coil voltage.
• DPDT contact configuration.
• Two changeover contacts (2CO).
• 2 A rated resistive 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.
• Silver-nickel contacts with 5 µm gold plating.
• 200 mW nominal coil power consumption.
• 405 Ω nominal coil resistance.
• Approximately 22.2 mA nominal coil current.
• Monostable electromagnetic operation.
• Through-hole PCB mounting.
• 5 mm terminal pitch.
• 20.3 mm housing length.
• 10.1 mm housing width.
• 11.4 mm housing height.
• RT III wash-tight protection category.
• −40 to +85 °C operating temperature.
• Cadmium-free contact construction.
• Designed for compatible low-level signals and electronic switching applications.

How the Finder 30.22.7.009.0020 DPDT PCB Relay Works

The Finder 30.22.7.009.0020 uses an electromagnetic coil to control two independent changeover contact sets. Each changeover contact provides a common terminal, a normally closed terminal and a normally open terminal. This configuration allows two circuits to change state together when the relay is operated.

When the 9 V DC coil is de-energised, each common contact is connected to its normally closed terminal. Applying the correct DC control voltage energises the coil, transferring both common contacts to their normally open terminals. When coil power is removed, the contacts return to their original positions.

The relay's 200 mW sensitive DC coil makes it suitable for low-power control electronics, provided the driving circuit can supply the necessary current. The nominal coil resistance is 405 Ω, corresponding to approximately 22.2 mA at 9 V DC. Electronic designers should account for coil energisation requirements and provide appropriate protection against inductive switching transients.

The DPDT arrangement allows one control signal to operate two separate changeover circuits. For example, one contact set can switch a compatible low-power load while the other provides status feedback or selects an alternative signal path. The two contact sets are mechanically linked, but their electrical use must remain within the specified insulation and switching limits.

Its AgNi contacts with 5 µm gold plating are especially beneficial where reliable switching of low-level signals is required. Gold plating helps protect the contact surface against oxidation, supporting dependable operation in suitable electronic circuits. The relay can also switch compatible higher-current loads within its specified ratings, although contact wear and switching life depend on the application.

For resistive loads, the relay is rated at 2 A at 125 V AC and 2 A at 30 V DC. The higher maximum switching voltages of 250 V AC and 110 V DC must not be interpreted as permission to switch 2 A at those voltages. Designers should consult the applicable voltage-current switching characteristics when working outside the stated rated-load conditions.

The relay is designed for through-hole PCB mounting, with a compact DIL-style housing and 5 mm terminal pitch. Its RT III wash-tight construction makes it suitable for compatible board-washing processes, although cleaning, soldering and drying procedures must follow Finder's installation recommendations.

Unlike the Finder 22 Series modular contactors, the Finder 30.22 is a PCB component rather than a DIN rail-mounted installation device. It is intended to be integrated into a suitably designed electronic assembly, with appropriate creepage distances, clearances, protection and enclosure arrangements.

Typical Applications

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