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NKK Switches MB2181SB1W03DA Miniature Pushbutton Switch

Miniature pushbutton switch with multi-function capabilities, suitable for various electronic applications requiring compact and versatile control. It features a 12.0mm threaded bushing with keyway, silver contacts rated at 6A at 125V AC and 3A at 250V AC, and solder lug terminals. The switch offers multiple plunger types including screw-on caps and quick connect options, with diameter options of 8.0mm, 10.0mm, 13.2mm, and 19.0mm. It is designed for panel mounting with maximum panel thickness of 5.5mm, and includes customizable shroud and cap color options for versatile installation and aesthetic alignment.

Authorized Distributors
Source:DigiKey
Part No:MB2181SB1W03-DA
Stock:40
Inv Date:06-17-2026
Price: Unit price: $12.91
Buy/RFQ:
Part No:MB2181SB1W03-DA
Stock:0
Inv Date:06-18-2026
Price: N/A
Buy/RFQ:
Part No:MB2181SB1W03-DA
Stock:0
Inv Date:06-17-2026
Price: Unit price: $21.54
Buy/RFQ:
Part No:MB2181SB1W03-DA
Stock:26
Inv Date:06-17-2026
Price: Unit price: $23.32
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NKK Switches MB2181SB1W03DA Miniature Pushbutton Switch Specifications:

  • Bushing Diameter: 12.0mm threaded with keyway
  • Contact Material: Silver over Silver
  • Contact Ratings: 6A at 125V AC, 3A at 250V AC
  • Terminal Type: Solder lug and quick connect options
  • Cap Diameter Options: 8.0mm, 10.0mm, 13.2mm, 19.0mm
  • Panel Thickness Capacity: Up to 5.5mm
  • Plunger Types: Screw-on caps, quick connect, wirewrap
  • Cap Colors: Black, White, Red, Green, Blue, Gray
  • Mounting Shroud Shapes: Round and rectangular
  • Material: Polycarbonate for shrouds and caps
  • Operating Life: 10,000 cycles (momentary), 30,000 cycles (alternate action)
  • Certification: Not specified for UL/CSA unless ordered with markings
  • Dimensions: Diameter varies by cap size, overall switch height designed for panel mounting
  • Applicable for: electronic devices, control panels, automation systems
  • Additional Accessories: Splashproof boots, hardware for different bushings

Buy the Buy NKK Large Bushing Miniature Pushbuttons Part Number MB2181SB1W03DA Online

Order the NKK miniature pushbutton switch MB2181SB1W03DA online for reliable performance in compact electronic controls. Featuring a 12.0mm threaded bushing with keyway, silver contacts rated at 6A at 125V AC, and versatile mounting options, this switch is designed for durability and precision. Its multiple plunger types and color options allow customization for your specific application. Easy to install with a panel thickness capacity of up to 5.5mm, it’s perfect for control panels, automation, and electronic devices requiring a compact, reliable switch.

Get NKK MB2181SB1W03DA today—built for precision, durability, and versatile electronic control applications.

Frequently Asked Questions

Where can I buy NKK Switches MB2181SB1W03DA?

You can click on the BUY or RFQ button to purchase MB2181SB1W03DA from an authorized NKK Switches distributor.

How do I troubleshoot issues or seek technical support for part MB2181SB1W03DA?

You can download the MB2181SB1W03DA datasheet or visit the NKK Switches website for support.

Who is the manufacturer of MB2181SB1W03DA?

NKK Switches

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