3x4x2.5mm Push Button Tact Micro Switch

SMD Tactile Push Button Switch 4-Pin is a compact momentary surface-mount switch widely used in electronic devices for tactile feedback and control. With a low-profile design and reliable click mechanism, it is ideal for compact PCBs and user interface panels in consumer and industrial products.

Key Features:

• Surface Mount Design: Easily soldered onto SMD PCBs for automated assembly.
• Momentary Action: Push-to-make type; returns to open when released.
• Tactile Feedback: Provides a crisp, reliable click during operation.
• Low Profile: Suitable for compact or space-limited applications.
• Wide Application: Ideal for keyboards, remotes, and handheld electronics.

Technical Specifications:

• Type: SMD Tactile Switch (Momentary)
• Number of Pins: 4-pin (2 normally open contacts)
• Operating Voltage: 12V DC max
• Operating Current: 50mA max
• Contact Resistance: ≤ 100mΩ
• Insulation Resistance: ≥ 100MΩ at 100V DC
• Operating Force: ~160gf (varies by model)

Mechanical Specifications:

• Switch Type: Normally open, SPST
• Body Material: Thermoplastic base with stainless steel actuator
• Dimensions: Approx. 6.0mm × 3.5mm × 2.5mm
• Terminal Pitch: ~4.5mm

Mounting Options:

• SMD Mount: Reflow solder compatible for surface mounting
• Hand Soldering: Can also be soldered manually with precision tools

Schematic Diagram, Connection, Wiring and Pinout:

• Pinout: Diagonally opposite pins are internally connected
• Connection: Place between GPIO input and GND with pull-up resistor in microcontroller circuits
• Debouncing: Software or hardware debouncing recommended for stable input

Datasheet and Documentation:

• Download SMD Tactile Switch Datasheet (PDF)

Applications:

• Consumer Electronics: Remote controls, calculators, and handheld devices
• Embedded Systems: Button inputs in microcontroller-based designs
• Industrial Equipment: Panel-mounted or embedded control switches
• DIY Projects: Arduino or Raspberry Pi based button interfaces

Equivalent Models:

• TS-1187A: Common SMD tactile switch with similar footprint
• KSS221GLFS: High-reliability SMD tactile switch
• EVQ-P7 Series: Panasonic SMD tactile switches

Package Includes:

• 1 x SMD Tactile Push Button Switch 4-Pin