KB15RKW01-6B-JB Equivalent & Substitute Parts

Part Overview

The KB15RKW01-6B-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 classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The switch combines panel-mount front installation with LED illumination (white, 3.3VDC nominal) and solder lug termination, designed for applications requiring standard illuminated switching functionality.

Substiute Parts

KB15RKW01-6B-JB

NKK SwitchesIn Stock: 914KB15RKW01-6B-JB Datasheet

Current PartRFQ

YB15RKW01-6B-JB

NKK SwitchesIn Stock: 1066YB15RKW01-6B-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The YB15RKW01-6B-JB qualifies as a substitute based on the following alignment with allowed electrical and mechanical parameters:

Matching Parameters:

• SPDT circuit configuration (identical switching topology)
• 125V AC voltage rating (maintains primary voltage specification)
• 30V DC voltage rating (maintains secondary voltage specification)
• Panel Mount, Front installation (identical mechanical interface)
• LED white illumination at 3.3VDC (identical illumination specification)
• Rectangular button actuator (identical actuator type)
• Operating temperature range -25°C to 50°C (identical thermal envelope)
• ROHS3 compliance (equivalent regulatory status)

Differing Parameters:

• Current rating increased from 1A to 3A (higher capacity, backward compatible)
• Mechanical life upgraded from 100,000 to 1,000,000 cycles (enhanced durability)
• Electrical life upgraded from 50,000 to 100,000 cycles (enhanced durability)
• Panel cutout diameter increased from 12.30mm to 16.00mm (mechanical modification required)
• Termination style changed from solder lug to solder/quick connect 0.110" (termination interface change)
• Product status changed from obsolete to active (availability improvement)

Parameter Comparison

Engineering Selection Recommendations

The YB15RKW01-6B-JB is an active product with current manufacturing status, providing supply chain continuity for applications currently using the obsolete KB15RKW01-6B-JB. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring equivalent regulatory standing.

Selection of the YB15RKW01-6B-JB requires evaluation of two primary design considerations:

Panel Cutout Modification: The substitute part requires a larger panel cutout diameter (16.00mm versus 12.30mm). Existing panel installations designed for the KB15RKW01-6B-JB will require mechanical modification to accommodate the larger aperture.

Termination Interface Change: The substitute transitions from solder lug termination to solder/quick connect 0.110" (2.8mm) termination. Existing wiring harnesses and PCB layouts designed for solder lug connections will require rewiring or adapter implementation.

Current Rating Advantage: The 3A current rating of the YB15RKW01-6B-JB exceeds the 1A specification of the original part, providing enhanced capacity for applications operating at or near the original 1A limit.

Lifecycle Advantage: Enhanced mechanical life (1,000,000 cycles versus 100,000 cycles) and electrical life (100,000 cycles versus 50,000 cycles) provide extended operational durability.

Frequently Asked Questions (FAQ)

Q: Can the YB15RKW01-6B-JB directly replace the KB15RKW01-6B-JB without modifications?

A: Direct replacement without modifications is not possible. The substitute part requires panel cutout enlargement from 12.30mm to 16.00mm diameter and termination interface conversion from solder lug to quick connect 0.110" (2.8mm). These are mechanical and electrical interface changes that must be accommodated in the installation design.

Q: Are the voltage and illumination specifications identical between these parts?

A: Yes. Both components maintain 125V AC / 30V DC voltage ratings, identical SPDT circuit configuration, and matching LED white illumination at 3.3VDC nominal. The electrical operating envelope is equivalent.

Q: What is the significance of the increased current rating from 1A to 3A?

A: The YB15RKW01-6B-JB provides higher current-carrying capacity. For applications operating at or below 1A, this represents a design margin improvement. The substitute part will not degrade performance in circuits designed for 1A operation.

Q: Does the larger panel cutout diameter affect the switch's electrical performance?

A: No. The panel cutout diameter change is a mechanical interface specification only. It does not affect electrical performance, switching characteristics, or illumination functionality. The change reflects the physical mounting aperture size required for the substitute component.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both the KB15RKW01-6B-JB and YB15RKW01-6B-JB are ROHS3 compliant and REACH unaffected, maintaining equivalent regulatory standing for applications subject to these compliance requirements.

Q: What is the practical implication of the 10x increase in mechanical life?

A: The YB15RKW01-6B-JB is rated for 1,000,000 mechanical cycles compared to 100,000 cycles for the original part. This extended lifecycle rating indicates enhanced durability and reduced maintenance frequency for high-cycle applications.

Q: Can existing wiring harnesses designed for solder lug termination be used with the quick connect termination of the substitute?

A: No. The termination interface change from solder lug to quick connect 0.110" (2.8mm) requires harness modification or replacement. Direct connection of solder lug harnesses to quick connect terminals is not compatible.