

Vertical slide switch spdt 3pin
What Is a 3 Pin Vertical Slide Switch?
A 3 pin vertical slide switch is a single‑pole double‑throw (SPDT) electromechanical switch designed for through‑hole PCB mounting with a vertically oriented actuator. This means the sliding handle moves perpendicular to the board surface, allowing top‑access operation through an enclosure panel. The three pins correspond to one common terminal and two output terminals. In an ON‑ON configuration, the common pin is always connected to one of the two output pins, with no center‑off position. This vertical SPDT slide switch is widely used for signal routing, function selection, and low‑power circuit switching in test equipment, audio devices, and embedded controllers. The vertical actuator design minimises the board area consumed by the switch while providing a large, easy‑to‑operate handle that clearly indicates the selected position.
How a 1P2T Slide Switch Operates
A 1P2T slide switch (one pole, two throws) uses a sliding actuator to move a contact wiper between two stationary positions. The central pin serves as the common terminal, while the two outer pins are the selectable outputs. When the actuator is pushed to one side, the common connects to the corresponding output pin; when pushed to the opposite side, it connects to the other output. This mechanical action is entirely manual and requires no power to maintain either state. The positive detent mechanism inside a vertical SPDT slide switch provides a tactile click and a firm stop at each position, preventing accidental mid‑position settling. The through‑hole terminals pass through the PCB and are soldered on both sides, creating a robust dual‑anchored joint that withstands repeated switching forces and lateral pressure on the actuator.
Advantages of an ON-ON Slide Switch in Vertical Orientation
An ON-ON slide switch is the simplest and most reliable configuration for applications where a circuit must always be connected to one of two sources. Unlike an ON‑OFF‑ON switch, there is no middle position where both circuits are disconnected—this eliminates the risk of floating inputs or unintended open circuits. The SS‑12D00 implements this ON‑ON slide switch functionality in a vertical through‑hole package, offering several mechanical advantages. First, the vertical actuator provides excellent visibility of the switch state from above the PCB, even in dimly lit enclosures. Second, the through‑hole terminals deliver superior solder joint strength compared to surface‑mount alternatives, making the switch resistant to the lateral forces generated during each actuation. Third, the compact footprint conserves board space while the actuator remains large enough for comfortable finger operation. For designs that require a simple, foolproof two‑way selector, a vertical ON‑ON slide switch is an optimal choice.
Through Hole Slide Switch Applications Across Industries
Technical Specifications – Vertical SPDT Slide Switch
| Parameter | Value |
|---|---|
| Part Number | SS-12D00 |
| Switch Type | Vertical SPDT Slide Switch |
| Circuit Configuration | SPDT (1P2T) |
| Operation | ON‑ON |
| Pin Count | 3 |
| Mounting Style | Through‑Hole (DIP), Vertical |
| Rating | 0.5A 50V DC |
| Contact Resistance | ≤50mΩ initial |
| Insulation Resistance | ≥100MΩ @ 500V DC |
| Dielectric Strength | 500V AC (1 minute) |
| Mechanical Life | 10,000 Cycles |
| Contact Material | Phosphor Bronze, Gold over Nickel |
| Housing Material | PBT, UL94V‑0 |
| Operating Temperature | −25°C to +85°C |
| Packaging | Tube (50 pcs/tube) |
| Compliance | RoHS & REACH |
How to Choose an SPDT Slide Switch for Your PCB
Selecting the correct vertical SPDT slide switch involves evaluating circuit requirements, mechanical constraints, and assembly methods. Current and voltage ratings must match the application—the SS‑12D00’s 0.5A at 50V DC covers most signal‑level and low‑power control circuits. Circuit configuration should be confirmed: an SPDT (1P2T) switch like this one provides one common and two selectable outputs, suitable for toggling between two signal sources or power rails. Mounting orientation is a critical mechanical decision; a vertical actuator allows top‑panel access and is ideal when the PCB is mounted flat inside the enclosure. Pin pitch of 2.54mm (0.1 inch) ensures compatibility with standard prototyping breadboards and automated through‑hole assembly. Mechanical life of 10,000 cycles provides years of reliable service even with frequent daily use. For a broader selection guide, see our Ultimate Slide Switch Guide.
Frequently Asked Questions – Vertical SPDT Slide Switch
What is a vertical SPDT slide switch?
A vertical SPDT slide switch is a single‑pole double‑throw switch with a vertically oriented actuator that mounts directly to a PCB via through‑hole terminals. The SS-12D00 is a 3‑pin ON‑ON version.
What is the difference between SPDT and SPST?
SPDT (single pole double throw) switches one circuit between two outputs, while SPST (single pole single throw) simply opens or closes a single circuit. SPDT provides more routing flexibility.
What does 3 pin slide switch mean?
A 3 pin slide switch has three terminals: one common pin and two output pins. Sliding the actuator connects the common to either output, making it an SPDT switch.
Is the SS-12D00 an ON‑ON switch?
Yes. It has two active positions with no center‑off. The common terminal is always connected to one of the two output pins.
Can this switch be used for signal switching?
Absolutely. The gold‑plated contacts provide stable low‑resistance connections ideal for audio, data, and control signal routing.
Do you offer free samples of the SS-12D00?
Yes. Free engineering samples are available for qualified projects. Contact sales@vistarelectronics.com with your requirements.
Your Source for Vertical SPDT Slide Switches
Vertical SPDT slide switches are widely used in compact electronic products where reliable manual switching is required. Their 3 pin vertical slide switch design provides excellent mechanical stability and dependable electrical performance. Compared with horizontal slide switches, a vertical SPDT slide switch offers easier top access while minimizing PCB footprint. As a specialized manufacturer, Vistar Electronics supplies a complete range of SPDT and DPDT vertical slide switches with multiple actuator styles, current ratings, and customization options for OEM customers. Whether you need a 1P2T slide switch for a consumer audio device or an ON‑ON slide switch for an industrial control panel, we deliver consistent quality backed by ISO 9001 manufacturing and full RoHS/REACH compliance.
Explore our full slide switch portfolio: Slide Switch Category, DPDT Vertical Slide Switch, Horizontal SPDT Slide Switch, Right Angle Slide Switch, and Mini Slide Switch. For technical guides, read our articles on What Is a Slide Switch? For industry standards, refer to IEC Standards and RoHS Compliance Guide. To request a free sample of the SS‑12D00 or discuss your requirements, contact sales@vistarelectronics.com.


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