Miniature tactile push button switch designed for low-current electronic applications. Featuring momentary push-to-make operation, PCB pin connections, and an ultra-compact footprint, this switch is ideal for circuit boards, embedded electronics, control panels, and DIY projects.
What it is
The E Auto Mini Tactile Push Button Switch is an ultra-compact momentary switch designed for PCB-mounted electronic applications. Featuring SPST-NO (Single Pole Single Throw – Normally Open) operation and Push-To-Make / Return-To-Break (PTM/RTB) functionality, the switch activates the circuit only while pressed and automatically returns to its default state when released.
Measuring just 3.8mm x 4.5mm, this miniature tactile switch is ideal for compact electronic assemblies where board space is limited but reliable user input is essential.
Use Cases / Applications
Ideal for a wide range of low-current electronic applications, including:
- Printed circuit boards (PCBs)
- Consumer electronics
- Embedded control systems
- Microcontroller projects
- Remote controls
- Electronic instruments
- Test equipment
- DIY electronics projects
- Prototyping and development boards
- Small electronic devices
Its miniature size makes it particularly suitable for densely populated circuit boards and compact electronic products.
Key Benefits
- Ultra-compact 3.8mm x 4.5mm design
- Momentary Push-To-Make / Return-To-Break operation
- Reliable tactile feedback for positive user interaction
- PCB-mounted design for easy integration into electronic circuits
- Low-current switching suitable for signal and control applications
- Lightweight and space-efficient construction
- Ideal for repairs, prototyping, and manufacturing applications
- Suitable for both professional and hobbyist electronics projects
Tactile switches are widely used in modern electronics because they provide reliable user input while occupying minimal board space, making them ideal for compact device designs.
Safety Compliance
- Rated 0.05A @ 12VDC
- Designed for low-current electronic switching applications
- Suitable for PCB-mounted installations
- Install according to electronic design and circuit requirements
This switch is intended for signal-level and low-current control circuits and should not be used for high-load switching applications.
E Auto products are designed to provide dependable electronic and electrical switching solutions for manufacturing, repairs, maintenance, and custom electronics projects.
Terminology:
Normally Open (NO):
A push button where the circuit is broken when the button is not pressed and closed (circuit connected) when pressed.
Normally Closed (NC):
A push button where the circuit is closed (circuit connected) when the button is not pressed and broken (circuit open) when pressed.
SPST: Single Pole Single Throw
SPDT: Single Pole Double Throw
DPST: Double Pole Single Throw
DPDT: Double Pole Double Throw
PTM/RTB: Push To Make/Release To Break
These terms refer to the number of poles and throws in the switch, describing the electrical circuitry.
Specification
- Function: Push Button Momentary
- Color: Black
- Illumination: No
- Load Capacity: 12VDC, 0.05A
- Material: Polycarbonate (PC)
- Mounting Type: Surface Mount
- Amps: 0.05A
- Circuit: SPST-NO
- Pole/Contacts: 4
- Switch Positions: On/Off (PTM/RTB)
- Voltage: 12VDC
- Throw/Positions: 1
- Termination Style: PC Pin
- Weatherproof: No
- Brand: E Auto
- Warranty: Yes
- Nationwide Shipping
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