KB15SKW01-05-JF Equivalent & Substitute Parts

Part Overview

The KB15SKW01-05-JF is an illuminated pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with on-momentary switch function. This component is designed for panel-mount front installation with incandescent green illumination at 5 VAC nominal voltage. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

KB15SKW01-05-JF

NKK SwitchesIn Stock: 1036KB15SKW01-05-JF Datasheet

Current PartRFQ

YB15SKW01-5F05-JF

NKK SwitchesIn Stock: 1093YB15SKW01-5F05-JF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB15SKW01-05-JF is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Mom (On-Momentary)
• Mounting type: Panel Mount, Front
• Actuator type: Square Button
• Color: Clear with Green Filter/Diffuser
• Operating temperature range: -25°C to 50°C
• Termination compatibility with existing circuit board design

Allowable Parameter Variations:

• Current rating: May be equal to or greater than 1A
• Voltage ratings: Must meet or exceed 125V AC and 30V DC
• Illumination type: Incandescent or LED acceptable if voltage compatibility maintained
• Panel cutout diameter: Larger diameter acceptable with mechanical redesign; smaller diameter not acceptable
• Mechanical and electrical life: May exceed specified minimums
• Product status: Active products preferred over obsolete

The YB15SKW01-5F05-JF qualifies as a substitute based on these criteria, with specific considerations noted in the parameter comparison section.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The YB15SKW01-5F05-JF is functionally equivalent to the KB15SKW01-05-JF for SPDT on-momentary pushbutton switch applications. The substitute is manufactured by the same supplier and maintains identical circuit configuration, switch function, voltage ratings, and operating temperature specifications.

Implementation Considerations:

1. Illumination Source Change: The substitute uses LED illumination (5 VDC) instead of incandescent (5 VAC). This requires verification that the control circuit can supply DC voltage instead of AC voltage. If the existing circuit provides only 5 VAC, a rectification stage or separate DC supply must be implemented.

2. Panel Cutout Modification: The substitute requires a 16.00mm diameter cutout versus the original 12.30mm. Panel drilling or modification is necessary for mechanical installation.

3. Termination Redesign: The substitute offers both solder and quick-connect 0.110" (2.8mm) termination options, whereas the original uses solder lugs only. PCB layout modification or use of the solder termination option is required.

4. Product Status Advantage: The substitute is active in production with significantly improved mechanical life (1,000,000 cycles vs. 100,000 cycles) and electrical life (100,000 cycles vs. 50,000 cycles), providing enhanced reliability for new designs.

5. Compliance Verification: Confirm RoHS compliance status of the substitute with NKK Switches if regulatory compliance documentation is required for your application.

Frequently Asked Questions (FAQ)

Q: Can the YB15SKW01-5F05-JF be used as a direct drop-in replacement for the KB15SKW01-05-JF?

A: No. While both switches share identical SPDT circuit configuration and on-momentary function, three modifications are required: (1) panel cutout enlargement from 12.30mm to 16.00mm, (2) illumination voltage source change from 5 VAC to 5 VDC, and (3) termination style adaptation from solder lug to solder/quick-connect configuration.

Q: What is the primary reason for substitution?

A: The KB15SKW01-05-JF is classified as obsolete. The YB15SKW01-5F05-JF is an active product from the same manufacturer that provides equivalent electrical functionality with improved mechanical and electrical life ratings.

Q: Are the voltage ratings compatible?

A: Yes. Both switches are rated for 125V AC and 30V DC, making them suitable for identical voltage applications. The difference is in illumination voltage type: the original requires 5 VAC while the substitute requires 5 VDC.

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

A: The substitute requires a 16.00mm diameter cutout compared to the original 12.30mm. This necessitates panel modification. If panel modification is not feasible, the original part must be sourced from inventory or alternative suppliers.

Q: Does the higher current rating of the substitute affect compatibility?

A: No. The substitute is rated for 3A (AC/DC) versus the original 1A (AC/DC). A higher current rating is acceptable for applications requiring 1A or less, as it provides additional design margin without affecting circuit operation.

Q: What are the advantages of the LED illumination in the substitute?

A: LED illumination provides longer operational life, lower power consumption, and faster response time compared to incandescent illumination. However, it requires DC voltage supply instead of AC, necessitating circuit modification.

Q: Is the termination style difference critical?

A: Yes. The original uses solder lugs while the substitute offers solder and quick-connect 0.110" (2.8mm) termination. PCB layout must be modified to accommodate the new termination style, or the solder termination option must be selected if available.

Q: Can I use the substitute if my panel is already drilled for the 12.30mm cutout?

A: No. The substitute requires a 16.00mm cutout. Using the substitute in a 12.30mm cutout will result in improper mechanical fit and potential electrical contact issues. Panel modification is mandatory.