12x12x7.3mm 4Pin On Off Panel Momentary Tactile Tact Switch

12x12x7.3mm 4Pin On Off Panel Momentary Tactile Tact Switch B3F4055 is a versatile input component for a wide range of electronic projects. Its “momentary” action means it completes a circuit only while you press it, making it ideal for buttons that require a quick, responsive input. Engineers and hobbyists often use this tactile switch in user interfaces to provide clear, audible, and physical feedback with a satisfying click. The 4-pin design ensures stable mounting on a PCB or breadboard, preventing unwanted movement during operation.

Key Features:

• Momentary Action: Creates a closed circuit only while you hold the button down.
• Tactile Feedback: Provides a distinct “click” sensation and sound, confirming a successful press.
• 4-Pin Design: Offers enhanced stability and simplified wiring, as the two pin pairs are internally connected.
• Through-Hole Mounting: Designed for easy integration into breadboards and standard PCBs.
• Compact and Durable: Features a rugged construction that handles repeated presses for reliable long-term use.

Technical Specifications:

• Contact Resistance: ≤100 mΩ
• Insulation Resistance: ≥100 MΩ
• Rated Load: DC 12V 50mA
• Actuator Force: 1.6 N to 2.5 N
• Operating Life: 100,000 cycles minimum
• Operating Temperature: -25 °C to +70 °C

Mechanical Specifications:

• Switch Type: Momentary Tactile Switch
• Mounting Style: Through-hole (DIP)
• Button Profile: Square
• Pin Configuration: 4 pins (2 pairs)

Dimensions:

• Length: 12 mm
• Width: 12 mm
• Height (from PCB): 7.3 mm
• Pin Pitch: 12.5 mm x 5 mm (standard)

Pinout and Wiring:

• Pin 1 & 2: Internally connected.
• Pin 3 & 4: Internally connected.
• Wiring Note: The switch works by closing the circuit between pin pairs (1-2 and 3-4) when you press it. To use it as an input with a microcontroller, connect one pair of pins to a digital pin and ground, using a pull-up or pull-down resistor to prevent floating.

Datasheet Reference:

• Download the official manufacturer’s datasheet for the 12x12mm series tactile switch for comprehensive electrical specifications and detailed mechanical drawings.

Applications:

• Microcontroller Projects: Serves as a reliable input button for Arduino, Raspberry Pi, and other development boards.
• User Interface (UI) Design: Functions as a reset button, menu navigation button, or a power switch in electronic devices.
• DIY Electronics: Essential component for custom circuit boards, robotics, and small gadgets.

Equivalent Models:

• 6×6 Tact Switch: A smaller alternative with the same momentary function.
• Push Button Switch: Latching push buttons remain in their ON state after a single press.
• Slide Switch: Offers a sliding action for toggling between ON/OFF states.

Package Includes:

• 1 x 12x12x7.3mm 4Pin On Off Panel Momentary Tactile Tact Switch