myMectronic
myMectronic

A Premier B2B Part Search

NKK Switches MB2181SS4W01 Miniature Pushbutton Switch

This miniature pushbutton switch is engineered for multi-function applications, ideal for compact electronic devices requiring reliable operation. It features a robust design with high insulation, splashproof options, and epoxy sealed terminals for enhanced durability in challenging environments. Incorporating an over-center actuator mechanism, it reduces sparking, prolonging circuit life. The switch supports various contact materials such as silver and gold, with resistive and dielectric ratings, and offers multiple mounting and cap options for flexibility. It complies with UL and CSA standards and is suitable for both logic and power circuits, ensuring dependable performance in industrial or consumer electronics.

Authorized Distributors
Source:DigiKey
Part No:MB2181SS4W01
Stock:9
Inv Date:06-17-2026
Price: Unit price: $7.56
Buy/RFQ:
Part No:MB2181SS4W01
Stock:0
Inv Date:06-18-2026
Price: N/A
Buy/RFQ:
Part No:MB2181SS4W01
Stock:0
Inv Date:06-17-2026
Price: Unit price: $11.24
Buy/RFQ:

NKK Switches MB2181SS4W01 Miniature Pushbutton Switch Specifications:

  • Current Rating: 6A @ 125V AC & 3A @ 250V AC or 0.4VA max. @ 28V DC
  • Contact Resistance: 10 milliohms max for silver; 20 milliohms max for gold
  • Insulation Resistance: 1,000 megohms min. @ 500V DC
  • Dielectric Strength: 1,000V AC between contacts for 1 min; 1,500V AC between contacts & case for 1 min
  • Mechanical Life: 50,000 operations minimum for splashproof models; 100,000 for others
  • Electrical Life: 25,000 operations min. for silver; 50,000 for gold
  • Operating Temp Range: -30°C to +85°C (-22°F to +185°F)
  • Humidity: 90-95% for 96 hours @ 40°C
  • Vibration: 10-55Hz, 1.5mm amplitude, 2 hours in 3 directions
  • Shock: 50G acceleration testing in 6 directions
  • Materials: Brass with nickel plating, polyacetal case, epoxy sealed terminals
  • Bushing Options: Threaded with keyway or smooth with keyway, splashproof variants IP67
  • Terminals: Solder lug or quick connect, typical sizes 0.062" (1.57mm)
  • Standards: UL recognized, CSA certified, UL94V-0 case material

Buy the NKK MB2181U– Reliable Miniature Pushbutton for Industrial Applications

Enhance your electronic systems with our reliable miniature pushbutton switch. Designed for durability and versatility, it offers splashproof variants and epoxy sealed terminals for challenging environments. Suitable for both logic and power circuits, with multiple cap options, standard certifications, and high insulation resistance. Perfect for compact electronic devices, industrial equipment, and control panels. Buy online now to ensure your projects benefit from consistent performance and robust construction, backed by certified standards and tailored features for effective operation and easy installation.

Order your NKK Series MB2181 miniature pushbutton today and give your electronic projects the dependable quality they deserve.

Frequently Asked Questions

Where can I buy NKK Switches MB2181SS4W01?

You can click on the BUY or RFQ button to purchase MB2181SS4W01 from an authorized NKK Switches distributor.

How do I troubleshoot issues or seek technical support for part MB2181SS4W01?

You can download the MB2181SS4W01 datasheet or visit the NKK Switches website for support.

Who is the manufacturer of MB2181SS4W01?

NKK Switches

NKK Switches Part List

Browse and search other NKK Switches parts, locate datasheets and stock

Sponsored by