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NKK Switches B12KBBA Subminiature Toggle Switch

The product is a compact, process sealed subminiature toggle switch designed for space-saving electronic and electrical applications. It features a sealed body construction to prevent contact contamination, making it ideal for low-voltage, low-current logic circuits. The switch offers various circuit configurations, including SPDT and DPDT, with options for panel mount with threaded bushings meeting IP65 standards. Its robust construction ensures reliable operation in environments with humidity, vibration, and temperature fluctuations, and it includes high-quality contacts with gold plating for enhanced durability and stability.

Authorized Distributors
Source:DigiKey
Part No:B12KB-BA
Stock:135
Inv Date:06-17-2026
Price: Unit price: $27.5
Buy/RFQ:
Source:DigiKey
Part No:B12KB-BA
Stock:0
Inv Date:06-17-2026
Price: Unit price: $7.7
Buy/RFQ:
Part No:B12KB-BA
Stock:0
Inv Date:06-18-2026
Price: Unit price: $7.7
Buy/RFQ:
Part No:B12KB-BA
Stock:0
Inv Date:06-17-2026
Price: Unit price: $8.01
Buy/RFQ:
Part No:B12KB-BA
Stock:3
Inv Date:06-17-2026
Price: Unit price: $7.42
Buy/RFQ:

NKK Switches B12KBBA Subminiature Toggle Switch Specifications:

  • Electrical Capacity: 0.4VA max @ 28V AC/DC
  • Contact Resistance: 50 milliohms max
  • Insulation Resistance: 500 megohms min @ 500V DC
  • Dielectric Strength: 500V AC for 1 min
  • Mechanical Life: 100,000 operations minimum
  • Operating Temperature Range: -30°C to +85°C
  • Humidity: 90-95% for 96 hours at 40°C
  • Vibration Resistance: 10-55Hz, peak-to-peak amplitude 1.5mm for 2 hours
  • Shock Resistance: 50G acceleration
  • Material: Nickel-plated brass, carbon blended polyamide, nitrile butadiene rubber
  • Mounting: Panel mount with threaded bushing or support bracket
  • Contact Type: Nonshorting, break-before-make
  • Certifications: UL, IP65 panel sealing standard

Buy the NKK Series B Toggle: B12KBBA

Order the NKK B12KBBA subminiature toggle switch online today. Designed for electronic applications, it offers robust sealing, high operational life, and stable gold contacts. Its space-saving design and IP65 panel seal make it perfect for low-voltage, low-current circuits requiring reliable switching. Manufactured with high-quality materials, this switch ensures durability in harsh environments. Easy to install with support brackets and threaded bushings, it guarantees long-lasting performance for your electronics projects or equipment maintenance needs. Buy now for dependable operation.

Get NKK B12KBBA today—built for precision, durability, and reliable low-voltage switching in compact designs.

Frequently Asked Questions

Where can I buy NKK Switches B12KBBA?

You can click on the BUY or RFQ button to purchase B12KBBA from an authorized NKK Switches distributor.

How do I troubleshoot issues or seek technical support for part B12KBBA?

You can download the B12KBBA datasheet or visit the NKK Switches website for support.

Who is the manufacturer of B12KBBA?

NKK Switches

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