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NKK Switches S303T Medium/High Capacity Toggle Switch

Standard size toggle switch with low to high capacity ratings, suitable for diverse electronic applications requiring reliable switching of power or signals. Features include copper movable contacts with silver plating, brass bushings with chrome finish, and steel case with zinc plating, ensuring durability. Operating temperature ranges from -10°C to +70°C. Mounting torque is 2.94Nm. Available with various terminal configurations like SPST, SPDT, and DPDT for versatile circuit control. Recognized by UL, CSA, and cULus standards when ordered with the marking, making it ideal for industrial and commercial uses.

Authorized Distributors
Source:DigiKey
Part No:S303T
Stock:327
Inv Date:06-17-2026
Price: Unit price: $14.34
Buy/RFQ:
Part No:S303T
Stock:80
Inv Date:06-18-2026
Price: Unit price: $13.1
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Part No:S303T
Stock:254
Inv Date:06-17-2026
Price: Unit price: $14.89
Buy/RFQ:
Part No:S303T
Stock:88
Inv Date:06-17-2026
Price: Unit price: $13.78
Buy/RFQ:

NKK Switches S303T Medium/High Capacity Toggle Switch Specifications:

  • Contact Resistance: 10 milliohms maximum
  • Insulation Resistance: 1,000 megohms minimum @ 500V DC
  • Dielectric Strength: 2,000V AC minimum for 1 minute
  • Mechanical Life: 50,000 operations minimum
  • Electrical Life: 15,000 operations minimum
  • Operating Temp Range: -10°C to +70°C
  • Materials & Finishes: Toggle - Brass with chrome plating; Bushings - Brass with chrome plating; Case - Melamine phenol; Contacts - Copper with silver plating; Terminals - Brass with tin plating
  • Mounting Torque: 2.94Nm (26 lbsin)
  • Maximum Panel Thickness: 4.7mm (0.185 inches)
  • Soldering Time & Temperature: Manual soldering, see Profile A
  • Standards & Certifications: UL, CSA, cULus recognized when ordered with marking

Buy the NKK Series S Toggle Switch: S303T

Enhance your electronic control systems with the NKK Series S toggle switch model S303T. Designed for low to high capacity switching, it offers durable materials, versatile configurations like SPST and DPDT, and complies with UL, CSA, and cULus standards when ordered correctly. Its rugged construction includes copper, brass, and steel components, ensuring longevity in various environments. Whether for industrial machinery or consumer electronics, this switch provides reliable operation, simple installation, and precise control, making it an excellent choice for your demanding switching needs.

Buy NKK Series S toggle switch S303T now and experience unmatched reliability and performance, perfect for industrial and electronic control applications.

Frequently Asked Questions

Where can I buy NKK Switches S303T?

You can click on the BUY or RFQ button to purchase S303T from an authorized NKK Switches distributor.

How do I troubleshoot issues or seek technical support for part S303T?

You can download the S303T datasheet or visit the NKK Switches website for support.

Who is the manufacturer of S303T?

NKK Switches

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