2pcs 3 way dip switch

🔹 2PCS 3-Way DIP Switch (Dual In-Line Package Switch)

A compact, through-hole package containing three individual SPST (Single Pole, Single Throw) slide switches in a single module. Designed for configuring circuit settings, selecting modes, or enabling/disabling functions on a printed circuit board (PCB) without resoldering components. Ideal for setting addresses, toggling options, or creating user-selectable hardware configurations.

✅ Specifications:

• Switch Type: SPST (Single Pole, Single Throw) Slide Switch

• Number of Switches per Module: 3 Independent Switches

• Switch Configuration: ON-OFF (Open/Closed)

• Contact Rating: Low Voltage/Signal Level (typically < 50V DC, < 100mA)

• Contact Resistance: < 50 mΩ (typical)

• Insulation Resistance: > 100 MΩ

• Package: Standard DIP (Dual In-Line Package) with straight pins

• Pitch: 2.54mm (0.1″) standard spacing between pins and rows

• Mounting: Through-Hole (THT)

• Material: Plastic housing, metal contacts

• Quantity: 2 pieces (modules)

⚙️ Key Features:

• Space-Saving Design: Integrates three configurable switches into one compact, standardized footprint.

• PCB Mountable: Easy to install on perfboards, prototype PCBs, and production boards.

• Manual Configuration: Allows for hardware-based settings that are persistent (unlike software settings) and do not require power to be maintained.

• Reliable & Tactile: Clear sliding action with a positive detent for ON and OFF positions.

• Standard Pinout: Compatible with standard DIP sockets and breadboards (may require slight spreading of pins).

📦 Typical Applications:

• Address Selection: Setting unique I2C or SPI device addresses for multiple sensors or modules on the same bus.

• Mode Configuration: Selecting operational modes (e.g., debug/normal, speed settings) on development boards or industrial controllers.

• Function Enable/Disable: Turning specific hardware features on or off (e.g., pull-up resistors, buzzer, backlight).

• Boot Configuration: Setting bootloader modes on microcontrollers or single-board computers.

• DIY Projects & Prototyping: Perfect for creating user-configurable options in custom audio gear, synthesizers, test equipment, and robot controllers.

🔧 Pinout & Connection Guide (Per 3-Way Module):

• Typical Layout (Top View, switch “ON” toward center):

  • Pins are arranged in two parallel rows.

  • Each of the 3 switches uses two pins (one in each row).

  • Sliding the actuator bridges these two pins, closing the circuit (ON).

  • The other two “outer” pins for each switch are often internally connected to the first pins, creating two common connection points per switch. Check datasheet for specific configuration.

  text

  Common Pins (Row 1) --[ SW1 ]-- Common Pins (Row 2)
  O 1 --------------   |   |   | -------------- 2 O
  O 3 --------------   |   |   | -------------- 4 O
  O 5 --------------   |   |   | -------------- 6 O

• Best Practice: Always verify continuity with a multimeter to confirm the ON/OFF state and pin connections for your specific module before finalizing your PCB design.

⚠️ Important Considerations:

• Current Limitation: Designed for signal-level switching only. Not suitable for switching mains power or high-current loads (use relays or MOSFETs for that).

• Debouncing: Like all mechanical switches, these are subject to contact bounce. For digital inputs, implement software or hardware debouncing.

• Environmental: Protect from dust and moisture, which can affect the contacts. Sealed or tape-sealed versions are available for harsher environments.