2P2T Push Button Switch for PCB Control & Dual-Circuit Switching

The PS-22F02 is a 2P2T push button switch — a six-terminal DPDT (2P2T) component designed for PCB applications requiring dual-circuit switching in a compact through-hole package. This DPDT push button switch provides two independent switching sections controlled by a single actuator, making it suitable for audio equipment, industrial controls, instrumentation, communication devices, and embedded systems.

This 2P2T push switch features a through-hole DIP mounting structure that provides strong mechanical retention on the PCB — particularly important for manually operated controls that are pressed repeatedly. The red actuator provides clear visual identification on populated boards, simplifying assembly and maintenance. Available in both self-locking (maintained) and non-locking (momentary) operating modes, this switch gives engineers flexibility for different control architectures.

Manufactured in an ISO 9001:2015 certified facility, this self locking push button switch is fully compliant with RoHS 3 and REACH regulations. Available in bag or tray packaging, with OEM customization options for volume orders.

Below are the complete specifications for the DPDT push button switch PS-22F02, covering electrical, mechanical, and environmental ratings.

Specifications should be verified against the latest product drawing and engineering documentation before production release. Electrical performance depends on the complete circuit design, including load type, switching frequency, and environmental conditions.

A 6 pin push button switch provides more circuit flexibility than a simple two-terminal ON/OFF device. Six terminals are typically arranged as two groups, with each group representing one switching pole. This allows the component to control two independent electrical paths with a single actuator.

For engineers designing compact PCBs, the six-terminal configuration can be useful when one physical control needs to affect two signals at the same time. For example, one pole can switch a signal line while the second pole controls another related circuit. This arrangement is particularly useful in audio equipment, instrumentation, control boards, communication equipment, and embedded electronics.

The through-hole construction also provides a strong mechanical connection to the PCB. Compared with small surface-mounted tactile switches, a DIP-style through-hole switch can offer additional mechanical retention when the actuator is frequently operated by hand. The red actuator provides clear visual identification on the PCB or control interface, which can be useful when several switches are installed on the same board and different functions need to be identified quickly during assembly, testing, or maintenance.

When laying out a PCB with this 6 pin push button switch, engineers should always confirm the manufacturer’s pin assignment and mechanical drawing rather than assuming that every six-pin switch uses an identical terminal arrangement.

A DPDT push button switch uses a double-pole, double-throw contact configuration. The term DPDT is also commonly described as 2P2T, meaning two poles and two throws. Each pole can switch between two contact positions, allowing one actuator to manage two separate circuits.

This configuration is useful for signal selection, polarity selection, mode switching, channel routing, and other low-power control functions. It can reduce the number of individual switches required in a control interface while keeping the mechanical operation simple. For example, an audio device may use the two poles to route left and right channels together. An instrumentation system may use the two poles to change between two related operating modes. An embedded controller may use the switch to select between two configuration states.

When selecting a DPDT push button switch for a PCB design, engineers should evaluate whether dual-circuit control is actually required. If only one signal path needs to be switched, an SPDT switch may be sufficient. When two electrically independent paths must be controlled together, DPDT provides additional flexibility without requiring two separate switches.

For low-voltage signal applications, contact behavior can influence system reliability. When the switch is connected to a microcontroller or digital logic input, contact bounce may produce multiple transitions during a single physical press. Texas Instruments explains that mechanical switches can bounce for hundreds of microseconds, so appropriate hardware or software debouncing may be required in digital designs. Read the Texas Instruments switch debounce application brief for additional technical background.

A 2P2T push switch is a useful choice when two electrical circuits need to be switched through one mechanical actuator. Because 2P2T and DPDT describe the same basic contact arrangement, engineers may encounter either term in datasheets, purchasing specifications, and circuit diagrams.

This type of switch can be integrated into through-hole PCB designs without requiring a separate panel-mounted mechanism. The pins are soldered directly to the board, providing both electrical connection and mechanical support. For PCB assembly, the mechanical drawing should be reviewed together with the schematic symbol and footprint. Terminal spacing, actuator position, body dimensions, insertion direction, and PCB keep-out requirements should all be confirmed before creating the production footprint.

Through-hole mounting remains useful for manually operated components because the soldered leads provide a solid mechanical attachment. This is especially relevant when the actuator will be pressed repeatedly during normal operation. Through-hole components can also simplify prototyping because they are easy to inspect and solder manually. For engineering samples, low-volume production, repairable equipment, and test fixtures, this mounting style can be particularly convenient.

When sourcing this 2P2T push switch for production, buyers should specify the required operating action clearly because momentary and latching mechanisms have different user-interface behavior.

A self locking push button switch maintains its mechanical state after the actuator is pressed. Instead of requiring continuous pressure, the mechanism changes state with each operation and remains in that position until the next actuation.

This behavior is different from a momentary push switch. A momentary switch returns to its original position after the actuator is released, while a self-locking mechanism provides a maintained state. The appropriate choice depends on whether the circuit requires a temporary command or a persistent mechanical selection.

The PS-22F02 is available in both operating modes. Self-locking is typically used for mode selection, power ON/OFF, and maintained configuration settings. Non-locking (momentary) is used for trigger inputs, reset functions, and temporary commands. During procurement, buyers should specify the required operating action clearly because momentary and latching mechanisms have different user-interface behavior.

For applications requiring a similar dual-circuit configuration, engineers can also review the 6 pin DPDT push button switch series and the self-locking push button switch series available from Vistar.

When selecting a push button switch for your PCB, understanding the differences between DPDT and SPDT configurations is essential.

The correct configuration depends on the circuit architecture. If only one signal path needs to be switched, SPDT may be sufficient. When two electrically independent paths must be controlled together, DPDT provides additional flexibility without requiring two separate switches.

What Is a 6 Pin DPDT Push Button Switch?

A 6 pin DPDT push button switch is a PCB-mounted switching component that provides double-pole double-throw contact configuration in a compact through-hole package. The PS-22F02 features six terminals arranged as two independent switching sections, each with one common terminal and two selectable positions. This allows one actuator to control two separate circuits simultaneously — a practical solution for audio routing, signal selection, and mode switching applications.

The switch is available in two operating mechanisms: self-locking (maintained) and non-locking (momentary). Self-locking versions maintain their state after actuation, making them suitable for mode selection and configuration control. Momentary versions return to their original position when released, making them suitable for triggers, resets, and temporary commands.

DPDT vs. SPDT — Making the Right Choice

When selecting a push button switch for your PCB, the choice between DPDT and SPDT depends on your circuit architecture. SPDT (Single Pole, Double Throw) switches control one circuit with three terminals. DPDT (Double Pole, Double Throw) switches control two independent circuits with six terminals. If only one signal path needs to be switched, SPDT may be sufficient. When two electrically independent paths must be controlled together — such as left and right audio channels — DPDT provides additional flexibility without requiring two separate switches.

Self-Locking vs. Momentary — Understanding the Difference

The operating mechanism defines how the switch behaves after actuation. A self-locking push button switch maintains its mechanical state after the actuator is pressed. It changes state with each operation and remains in that position until the next actuation. This is typically used for mode selection, power ON/OFF, and maintained configuration settings. A momentary push button switch returns to its original position after the actuator is released. It is used for triggers, resets, and temporary commands.

The PS-22F02 is available in both configurations. During procurement, buyers should specify the required operating action clearly because momentary and latching mechanisms have different user-interface behavior.

Through-Hole Mounting — Why It Matters for Manual Controls

Through-hole mounting remains relevant for manually operated components because the soldered leads provide a solid mechanical attachment. This is especially important when the actuator will be pressed repeatedly during normal operation. Compared with surface-mounted components, through-hole switches offer superior mechanical retention and are easier to inspect and solder manually — making them ideal for prototyping, low-volume production, repairable equipment, and test fixtures.

Applications Across Industries

This DPDT push button switch is widely used across multiple industries. Audio equipment uses it for channel selection and signal routing. Industrial control panels use it for manual mode selection and function switching. Test instruments use it for range selection and configuration switching. Communication equipment uses it for signal path selection. Consumer electronics use it for operating-mode selection. Embedded systems use it for hardware configuration and service-mode selection.

Why Choose Vistar as Your Push Button Switch Supplier

Vistar Electronics is a trusted manufacturer and supplier of push button switches serving customers in consumer electronics, industrial automation, medical devices, and communication equipment. Our push button switch lineup includes PCB-mounted, self-locking, momentary, and metal switch configurations with various pin counts and mounting styles.

With ISO 9001:2015 certification and a commitment to continuous improvement, Vistar is your reliable partner for high-quality switching solutions. For more technical resources, including PCB layout guidelines and switch selection guides, visit our technical blog or contact our engineering support team directly.

Explore our full range of push button switches and related content:

• Push Button Switches — Full Product Collection
• 6 Pin DPDT Push Button Switch — PS-22F02
• Self-Locking Push Button Switch — 6 Pin