KB15NKW01-5F-JB Equivalent & Substitute Parts

Part Overview

The KB15NKW01-5F-JB 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-mount, snap-in applications with green LED illumination and solder lug termination. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations.

Substiute Parts

KB15NKW01-5F-JB

NKK SwitchesIn Stock: 1182KB15NKW01-5F-JB Datasheet

Current PartRFQ

YB15NKW01-5F-JB

NKK SwitchesIn Stock: 821YB15NKW01-5F-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB15NKW01-5F-JB is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration: SPDT
• Mounting type: Panel Mount, Snap-In
• Illumination type: LED, Green
• Voltage rating: 125V AC minimum
• Operating temperature range: -25°C to 50°C minimum
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Current rating: May exceed 1A (higher current rating is acceptable for lower-current applications)
• Mechanical and electrical life: May exceed specified values
• Panel cutout diameter: Larger diameter acceptable with mechanical redesign consideration
• Illumination voltage: Minor variation acceptable (2.1 VDC to 2.2 VDC)
• Termination style: Alternative termination acceptable if circuit integration permits
• Product status: Active status preferred for long-term availability

The YB15NKW01-5F-JB qualifies as a substitute based on these parameters.

Parameter Comparison

Engineering Selection Recommendations

The YB15NKW01-5F-JB serves as a direct substitute for the obsolete KB15NKW01-5F-JB in applications requiring SPDT illuminated pushbutton switches with 125V AC operation. Key advantages of the substitute include:

Product Availability: The YB15NKW01-5F-JB maintains active product status with documented inventory, ensuring long-term supply chain continuity compared to the obsolete KB15NKW01-5F-JB.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements.

Enhanced Performance Characteristics: The substitute provides increased current capacity (3A versus 1A), extended mechanical life (1,000,000 versus 100,000 cycles), and doubled electrical life (100,000 versus 50,000 cycles), delivering improved reliability margins for the same voltage and temperature specifications.

Mechanical Considerations: The panel cutout diameter increases from 12.30mm to 16.00mm, requiring mechanical redesign of the mounting panel. Termination style changes from solder lug to solder with quick connect 0.110" (2.8mm) options, necessitating circuit board layout modification.

Illumination Compatibility: Illumination voltage variation (2.1 VDC to 2.2 VDC) remains within acceptable tolerance for LED green illumination circuits.

Frequently Asked Questions (FAQ)

Q: Can the YB15NKW01-5F-JB directly replace the KB15NKW01-5F-JB without modifications?

A: Electrical substitution is valid. However, mechanical panel modifications are required due to the increased cutout diameter (16.00mm versus 12.30mm) and termination style changes. Circuit board layout must accommodate the alternative termination configuration.

Q: What is the significance of the increased current rating (3A versus 1A)?

A: The higher current rating of the substitute provides additional design margin for the same application. A 1A circuit operates safely within the 3A rated capacity. This enhancement does not create compatibility issues and improves component reliability.

Q: Are there compatibility concerns with the illumination voltage difference (2.1 VDC versus 2.2 VDC)?

A: The 0.1 VDC variation falls within standard LED illumination circuit tolerances and does not affect functional compatibility. Existing LED drive circuits designed for 2.1 VDC operation will function correctly with the 2.2 VDC specification.

Q: What packaging differences exist between these components?

A: The KB15NKW01-5F-JB uses standard packaging, while the YB15NKW01-5F-JB is supplied in tray packaging. Tray packaging is standard for active production components and does not affect component performance or electrical characteristics.

Q: Why does the substitute have significantly higher mechanical and electrical life ratings?

A: The YB series represents an enhanced design iteration with improved internal contact materials and mechanical construction. These improvements provide extended operational life while maintaining identical voltage, temperature, and circuit specifications.

Q: Is the tactile feedback feature of the YB15NKW01-5F-JB a compatibility concern?

A: Tactile feedback is an additional feature that does not affect electrical compatibility. The switch maintains identical SPDT circuit operation and On-Mom function regardless of tactile feedback presence.