Vertical Push Switch SPST for Reliable PCB Control Applications
Vertical Push Switch SPST — Product Overview
The PB-11E04 is a vertical push switch SPST engineered for reliable momentary control in PCB-based electronic designs. As a through hole push switch with vertical actuation, it offers a compact 2-pin DIP footprint that integrates seamlessly into both new and legacy PCB layouts.
This SPST push switch (Single Pole Single Throw) features a normally open (NO) momentary circuit — the contacts close only while the button is pressed and return to the open state upon release. This makes it ideal for applications requiring temporary activation, such as reset functions, mode triggers, and user input controls. The switch is rated at 0.3A at 30V DC with a contact resistance of ≤50mΩ, ensuring reliable low-power signal and control applications.
As a vertical PCB push switch, the PB-11E04 offers several advantages for automated assembly. The through-hole DIP configuration provides superior mechanical anchoring compared to SMT alternatives — the 2 pins pass through the PCB and are soldered on the back side, delivering excellent pull-out and side-load resistance. This makes it the preferred choice for industrial control panels, consumer electronics, and applications where mechanical durability is critical.
The switch is available in both momentary (non-lock) and self-locking variants, with an operating life of 10,000 cycles and full RoHS compliance.
Vertical PCB Push Switch — Technical Specifications (PB-11E04)
| Parameter | Value | Notes |
|---|---|---|
| Part Number | PB-11E04 | Standard catalog item |
| Switch Type | SPST (Single Pole Single Throw) | 2-terminal configuration |
| Circuit Function | Normally Open (NO) — Momentary | Contacts close when pressed |
| Operating Mode | Self-Lock & Non-Lock | Available in both variants |
| Mounting Type | Through Hole (Vertical DIP) | 2-pin vertical orientation |
| Contact Rating | 0.3A @ 30V DC | Resistive load |
| Contact Resistance | ≤ 50mΩ (initial) | — |
| Insulation Resistance | ≥ 100MΩ @ 500V DC | — |
| Dielectric Strength | 500V AC for 1 minute | — |
| Operating Force | 180 ± 50 gf | — |
| Mechanical Life | 10,000 cycles | — |
| Electrical Life | 10,000 cycles | — |
| Operating Temperature | −25°C to +85°C | Commercial & industrial range |
| Storage Temperature | −40°C to +85°C | — |
| Housing Material | PA / Nylon | UL94V-0 flammability rating |
| Contact Material | Copper Alloy, Silver Plated | Low contact resistance |
| RoHS Compliance | Yes | Globally export ready |
| Packaging | Tray / Bag | Production ready |
Why Choose a Vertical Push Switch SPST for Your PCB Design
📐 Compact Vertical Design
The vertical orientation occupies minimal PCB real estate while providing easy access for manual actuation — ideal for densely populated boards.
🔩 Through-Hole Mounting
Superior mechanical anchoring compared to SMT — the 2 pins pass through the PCB and are soldered on the back side for maximum pull-out resistance.
⚡ Stable Electrical Contact
Silver-plated copper alloy contacts ensure low and stable contact resistance (≤50mΩ) over the switch’s entire 10,000-cycle life.
♻️ Long Mechanical Life
Rated for 10,000 mechanical and electrical cycles, providing reliable performance for the expected lifetime of most commercial and industrial equipment.
🔧 Easy PCB Assembly
Through-hole DIP pins are compatible with wave soldering and hand soldering processes, simplifying high-volume production and prototyping.
✅ RoHS & REACH Compliance
Fully compliant with environmental regulations, enabling worry-free export to North America, Europe, and Asia.
How an SPST Push Switch Works — Understanding the 2-Pin Configuration
A vertical push switch SPST (Single Pole Single Throw) uses a simple yet reliable 2-terminal architecture. Understanding how it works is essential for proper circuit integration.
🔑 The Two Terminals
- Terminal 1 — Input: One side of the switch contact
- Terminal 2 — Output: The other side of the switch contact
In its resting (unpressed) state, the switch is Normally Open (NO) — the two terminals are electrically isolated, and no current flows through the switch. When the button is pressed, an internal metal contact bridges the two terminals, closing the circuit and allowing current to flow. Upon release, a spring mechanism returns the contact to its open position, breaking the circuit.
This momentary push switch operation is ideal for applications where temporary activation is required — such as reset buttons, doorbells, keyboard keys, and function triggers. The switch provides tactile feedback through a distinct “click” feel when actuated, confirming to the user that the button has been pressed.
⚡ Momentary vs. Self-Locking
The PB-11E04 series is available in both momentary (non-lock) and self-locking variants:
- Momentary (Non-Lock): The circuit is closed only while the button is held down. When released, it returns to the open state. Ideal for temporary functions like reset, trigger, or push-to-talk.
- Self-Locking (Latching): The first press closes the circuit and locks it in place; the second press releases the lock and opens the circuit. Ideal for toggle functions like power ON/OFF or mode selection.
SPST vs SPDT Push Switch — Choosing the Right Configuration
Understanding the differences between switch configurations is essential for selecting the right component for your application. Here’s how the SPST push switch compares to the SPDT (Single Pole Double Throw) configuration:
| Feature | SPST | SPDT |
|---|---|---|
| Poles | 1 | 1 |
| Throws | 1 | 2 |
| Terminals | 2 | 3 |
| Function | ON/OFF (simple circuit control) | Circuit selection (switch between two circuits) |
| Typical Use | Reset buttons, power triggers, momentary controls | Signal routing, source selection, mode switching |
| Wiring Complexity | Simple (2 terminals) | Moderate (3 terminals) |
| Cost | Lower | Higher |
| Typical Life | Up to 1,000,000 cycles | ~500,000 cycles |
An SPST push switch like the PB-11E04 provides straightforward ON/OFF control by completing or interrupting a single circuit. It’s the ideal choice for applications requiring simple momentary activation — such as reset buttons, keyboard keys, and trigger inputs. With only two terminals, it’s the simplest and most cost-effective push switch configuration available.
An SPDT push switch has three terminals and can switch a single input between two different outputs. This makes it suitable for applications where you need to select between two circuits — such as swapping inputs, changing modes, or selecting between two power sources.
Why Choose a Vertical Push Switch for PCB Applications
The vertical PCB push switch offers several distinct advantages over horizontal or right-angle alternatives. Here are the key reasons why engineers specify vertical push switches for their designs:
📏 Space Efficiency
Vertical switches occupy minimal PCB area while providing a tall actuator that’s easy for users to reach — ideal for compact electronic devices where board space is at a premium.
🔧 Through-Hole Reliability
The DIP through-hole pins provide superior mechanical anchoring compared to SMT, with excellent pull-out and side-load resistance — critical for applications subject to vibration or repeated actuation.
⚡ Simplified Routing
The 2-pin inline configuration simplifies PCB routing — both pins are easily accessible and require minimal trace lengths, reducing parasitic inductance and improving signal integrity.
♻️ Wave Soldering Compatible
Through-hole vertical switches are fully compatible with wave soldering processes, enabling high-volume automated assembly and reducing manufacturing costs.
Typical Applications for the Vertical Push Switch SPST
Reset buttons, mode selection, and function triggers in remote controls, portable devices, and audio equipment
Emergency stop buttons (momentary), reset controls, and operator interface push buttons in factory automation equipment
Patient call buttons, diagnostic equipment controls, and laboratory instrument reset switches
Function triggers, calibration controls, and manual override switches in multimeters and oscilloscopes
Push-to-talk (PTT) buttons, reset functions, and configuration controls in two-way radios and communication devices
Reset buttons, pairing triggers, and manual override controls in IoT devices, thermostats, and smart lighting
Reset switches, tamper detection triggers, and manual activation buttons in access control and alarm systems
Arcade buttons, DIY electronics projects, Arduino push buttons, and custom control panels
How to Choose the Right Push Switch — 7 Key Selection Criteria
Choosing the right momentary push switch for your application requires careful evaluation of several technical parameters. Here are the seven most important factors to consider:
1. Momentary vs. Latching
Momentary (non-lock) switches return to their resting state when released — ideal for reset and trigger functions. Latching (self-lock) switches maintain their state until pressed again — ideal for power ON/OFF and mode selection.
2. SPST or SPDT?
SPST (2 pins) provides simple ON/OFF control. SPDT (3 pins) allows switching between two circuits. Choose based on whether you need to control one circuit or select between two.
3. Through-Hole or SMT?
Through-hole (DIP) offers superior mechanical strength for panel-mounted applications. SMT is suitable for space-constrained, high-volume automated assembly.
4. Operating Force
PB-11E04 offers 180 ± 50 gf — a balanced force that provides tactile feedback without being overly stiff or too light.
5. Mechanical Life
Consider the expected actuation frequency. PB-11E04 offers 10,000 cycles, suitable for most commercial and industrial applications.
6. PCB Space
Vertical switches occupy minimal board area while providing a tall actuator. Measure your available PCB space and panel clearance before selecting.
7. Operating Environment
Temperature range, humidity, and exposure to contaminants affect switch reliability. PB-11E04 operates from −25°C to +85°C, suitable for most commercial and industrial environments.
Vertical Push Switch SPST — Frequently Asked Questions
What is a vertical SPST push switch?
A vertical SPST push switch is a Single Pole Single Throw momentary push button switch with a vertical actuation direction and through-hole PCB mounting. The PB-11E04 features 2 terminals, a normally open circuit, and is available in both momentary (non-lock) and self-locking variants.
Is this switch momentary or latching?
The PB-11E04 series is available in both momentary (non-lock) and self-locking variants. The momentary version returns to its open state when released, while the self-locking version maintains its state until pressed again. Please specify your requirement when ordering.
What is the difference between SPST and SPDT?
SPST (Single Pole Single Throw) has 2 terminals and provides simple ON/OFF control by completing or interrupting a single circuit. SPDT (Single Pole Double Throw) has 3 terminals and allows switching between two circuits — the common terminal connects to one of two outputs.
Is it suitable for wave soldering?
Yes. The PB-11E04 is a through hole push switch designed for wave soldering and hand soldering processes. The housing material (PA/nylon with UL94V-0 rating) withstands standard soldering temperatures.
What is the rated mechanical life?
The PB-11E04 is rated for 10,000 mechanical and electrical cycles. This is suitable for most commercial and industrial applications where switches are not actuated millions of times.
Can it be used in industrial equipment?
Yes. The PB-11E04 operates reliably across −25°C to +85°C, making it suitable for industrial control panels, factory automation equipment, and other demanding applications.
What contact plating options are available?
Standard contact plating is silver-plated copper alloy for general-purpose applications. Gold plating is available for low-voltage, low-current signal applications where contact oxidation is a concern. Contact our sales team for specific requirements.
Can the actuator height be customized?
Yes. Vistar Electronics offers customization options including actuator height, actuator color, and operating force. Minimum order quantities apply for custom variants. Contact sales@vistarelectronics.com for details.
What is the MOQ and can I get free samples?
Standard MOQ is 1,000 pieces with a 2–4 week production lead time. Free samples are available for qualified engineering and product development projects. Contact sales@vistarelectronics.com with your company details, project application, and part number (PB-11E04).
Are engineering samples available?
Yes. Engineering samples are available for qualified projects. Please submit your request through sales@vistarelectronics.com with your company information and project details.
Technical Resources & Industry References
- Push Button Switches: Types and Selection Tips — Same Sky — Comprehensive guide to push button switch types, configurations, and selection criteria
- Switch Basics — DigiKey — Overview of switch configurations including SPST, SPDT, DPST, and DPDT
- Switch Basics — SparkFun — Educational guide to switch types and applications
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