The SMD Side Press Tactile Switch (2-Pin, 4.5 × 2.2 mm) is a compact, low-profile tactile push button designed for space-constrained PCB applications. Featuring a horizontal (side press) actuation, it is ideal for edge-mounted user interfaces such as reset buttons, mode switches, and power controls.
This switch provides reliable tactile feedback, stable mechanical performance, and easy SMT assembly. Its compact footprint makes it highly suitable for modern embedded designs including flight controllers, IoT devices, and portable electronics.
Key Features
Electrical Characteristics-
Contact type: Momentary (SPST-NO)
Rated voltage: ~12V DC
Rated current: ~50 mA
Low contact resistance
Mechanical Design-
Actuation type: Side press (horizontal)
Pins: 2 Pin
Compact footprint: 4.5 mm × 2.2 mm
Low-profile structure for tight spaces
Performance-
Clear tactile feedback
Long life cycle (typically 100,000+ operations)
Reliable switching action
Mounting-
Surface Mount Device (SMD)
Strong solder pad retention
Package Information-
Type: Tactile Switch
Mounting Type: Surface Mount (SMD)
Orientation: Right Angle / Side Press
Dimensions: Approx. 4.5 × 2.2 × 1.8 mm
Package Contents-
1 × SMD Side Press Tactile Switch (2-Pin)
Applications-
Reset / Boot buttons (STM32, ESP, Arduino)
Flight controllers and RC electronics
Power and mode switches
IoT and embedded devices
Compact handheld electronics
Usage Notes-
Use with pull-up or pull-down resistor in MCU circuit
Ensure correct PCB footprint (as per land pattern in image)
Place near PCB edge for easy user access
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