KB15SKW01-12-JC Equivalent & Substitute Parts

Part Overview

The KB15SKW01-12-JC is an illuminated pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with 1A current rating at 125V AC. This component is designed for panel-mounted front applications with incandescent red illumination at 12 VAC. The product is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

KB15SKW01-12-JC

NKK SwitchesIn Stock: 1077KB15SKW01-12-JC Datasheet

Current PartRFQ

YB15SKW01-5C12-JC

NKK SwitchesIn Stock: 680YB15SKW01-5C12-JC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB15SKW01-12-JC is determined by the following critical parameters:

Electrical Compatibility Requirements:

• SPDT circuit configuration (maintained)
• On-Mom switch function (maintained)
• Voltage ratings: 125V AC / 30V DC minimum (maintained or exceeded)
• Current rating: 1A minimum (maintained or exceeded)

Mechanical & Physical Compatibility:

• Panel mount, front installation capability (maintained)
• Square button actuator type (maintained)
• Red illumination color (maintained)
• Operating temperature range: -25°C to 50°C (maintained or exceeded)

Illumination Specifications:

• Illumination voltage: 12V nominal (maintained, with technology variation allowed)
• Red color output (maintained)

The YB15SKW01-5C12-JC qualifies as a substitute because it maintains all critical electrical parameters (SPDT, On-Mom, 125V AC, 30V DC), exceeds the current rating (3A vs. 1A), preserves mechanical mounting compatibility, and retains red illumination at 12V nominal. Variations in illumination technology (LED vs. incandescent), panel cutout diameter, and termination style represent engineering improvements rather than incompatibilities.

Parameter Comparison

Engineering Selection Recommendations

The YB15SKW01-5C12-JC is an active product substitute for the obsolete KB15SKW01-12-JC. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and replacements.

Advantages of YB15SKW01-5C12-JC:

• Active product status ensures long-term availability and supply chain continuity
• Higher current rating (3A) provides design margin for applications originally specified at 1A
• Extended mechanical life (1,000,000 cycles vs. 100,000 cycles) improves component longevity
• Doubled electrical life (100,000 cycles vs. 50,000 cycles) extends operational reliability
• LED illumination reduces power consumption compared to incandescent technology

Design Considerations:

• Panel cutout diameter increases from 12.30mm to 16.00mm, requiring panel modification for direct mechanical replacement
• Illumination voltage changes from 12 VAC to 12 VDC; circuit design must accommodate DC supply instead of AC
• Termination style changes from solder lug to solder with quick connect option; wiring harness adaptation may be required
• Tactile feedback feature is added in the substitute part

Frequently Asked Questions (FAQ)

Q: Can YB15SKW01-5C12-JC directly replace KB15SKW01-12-JC without any modifications?

A: Electrical and functional replacement is direct. Mechanical installation requires panel cutout enlargement from 12.30mm to 16.00mm diameter. Illumination circuit must be modified to supply 12 VDC instead of 12 VAC. Termination connections require adaptation from solder lug to solder/quick connect terminals.

Q: What are the key electrical differences between these parts?

A: Both maintain SPDT configuration and 125V AC / 30V DC ratings. The substitute YB15SKW01-5C12-JC increases current capacity from 1A to 3A, providing higher switching capability. Illumination technology changes from incandescent to LED, reducing power draw.

Q: Are both parts RoHS compliant?

A: Yes. Both KB15SKW01-12-JC and YB15SKW01-5C12-JC are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the impact of the larger panel cutout diameter?

A: The substitute requires a 16.00mm diameter cutout versus 12.30mm for the original. Existing panel installations designed for the KB15SKW01-12-JC require mechanical modification to accommodate the larger diameter.

Q: How does the change from incandescent to LED illumination affect circuit design?

A: Incandescent illumination operates on 12 VAC; LED illumination requires 12 VDC. Power supply circuits must be redesigned accordingly. LED technology typically draws less current and generates less heat than incandescent equivalents.

Q: Are the mechanical life ratings significantly different?

A: Yes. The substitute YB15SKW01-5C12-JC provides 1,000,000 mechanical cycles compared to 100,000 cycles in the original KB15SKW01-12-JC, representing a 10-fold improvement in mechanical durability.