KB15RKW01-12-CB Equivalent & Substitute Parts

Part Overview

The KB15RKW01-12-CB is an illuminated pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with on-momentary switch function. This component is rated for 1A at 125V AC and 30V DC, with incandescent red illumination at 12VAC nominal voltage. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

KB15RKW01-12-CB

NKK SwitchesIn Stock: 792KB15RKW01-12-CB Datasheet

Current PartRFQ

YB15RKW01-5C12-JC

NKK SwitchesIn Stock: 915YB15RKW01-5C12-JC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB15RKW01-12-CB is determined by the following critical parameters that must remain consistent or be compatible with the original design:

Circuit and Function Compatibility: The substitute must maintain SPDT circuit configuration and on-momentary switch function to preserve electrical behavior in the host system.

Electrical Ratings: The substitute must support minimum 125V AC and 30V DC ratings. Higher current ratings (3A versus 1A) are acceptable as they represent increased capability without reducing performance in the original application context.

Mounting and Physical Interface: Panel mount, front-facing orientation must be maintained. However, panel cutout diameter differences (12.30mm original versus 16.00mm substitute) require mechanical evaluation for panel compatibility.

Illumination Characteristics: Red illumination color must be preserved for visual consistency. Illumination voltage differs between incandescent 12VAC (original) and LED 12VDC (substitute), requiring verification of available illumination supply in the host system.

Termination: Solder lug termination (original) differs from solder/quick connect hybrid termination (substitute), requiring assessment of PCB or wiring integration method.

Environmental and Lifecycle: Operating temperature range remains identical. Mechanical life improvement (1,000,000 versus 100,000 cycles) and electrical life improvement (100,000 versus 50,000 cycles) in the substitute represent enhanced durability.

Parameter Comparison

Engineering Selection Recommendations

The YB15RKW01-5C12-JC represents a functionally equivalent substitute for the obsolete KB15RKW01-12-CB based on identical circuit configuration, switch function, and electrical ratings. The substitute is manufactured by the same supplier and maintains active production status, ensuring long-term availability.

Selection of the YB15RKW01-5C12-JC requires evaluation of three specific design considerations:

Illumination Supply Compatibility: The original part requires 12VAC incandescent illumination supply, while the substitute requires 12VDC LED illumination supply. The host system must provide or be modified to provide DC supply for the substitute. LED illumination offers reduced power consumption compared to incandescent technology.

Panel Mechanical Integration: The substitute requires a 16.00mm diameter panel cutout compared to the original 12.30mm diameter. Panel modification or replacement may be necessary to accommodate the larger cutout dimension.

Termination Method: The original solder lug termination differs from the substitute's hybrid solder/quick connect termination. PCB or wiring integration method must be assessed for compatibility with the substitute's termination style.

The substitute's enhanced mechanical life (1,000,000 cycles) and electrical life (100,000 cycles) provide improved component durability in the replacement application.

Frequently Asked Questions (FAQ)

Q: Can the YB15RKW01-5C12-JC be used as a direct replacement for the KB15RKW01-12-CB without any modifications?

A: Direct replacement is not possible without modifications. The substitute requires a larger panel cutout (16.00mm versus 12.30mm) and a different illumination supply (12VDC versus 12VAC). Termination method also differs. These differences require mechanical and electrical integration assessment.

Q: What is the primary reason for substituting the KB15RKW01-12-CB?

A: The original part is classified as obsolete. The YB15RKW01-5C12-JC is in active production status, ensuring availability for new designs and ongoing system maintenance.

Q: Are the electrical ratings compatible between these two parts?

A: Yes. Both parts maintain identical SPDT circuit configuration, on-momentary switch function, 125V AC rating, and 30V DC rating. The substitute's 3A current rating exceeds the original 1A rating, making it compatible for the original application.

Q: What is the impact of changing from incandescent to LED illumination?

A: LED illumination in the substitute consumes less power than incandescent illumination in the original part. However, the illumination supply type changes from 12VAC to 12VDC, requiring the host system to provide DC supply instead of AC supply.

Q: Does the larger panel cutout dimension affect electrical performance?

A: No. The panel cutout dimension is a mechanical interface parameter only. It does not affect electrical performance but requires panel modification or replacement to accommodate the 16.00mm diameter cutout.

Q: Are both parts RoHS compliant?

A: The original KB15RKW01-12-CB is ROHS3 compliant. RoHS compliance status for the substitute YB15RKW01-5C12-JC is not specified in the provided data.

Q: What is the difference in component lifespan between these parts?

A: The substitute offers significantly improved mechanical life (1,000,000 cycles versus 100,000 cycles) and electrical life (100,000 cycles versus 50,000 cycles), representing 10x and 2x improvements respectively.