KB26CKW01-5C-JB Equivalent & Substitute Parts

Part Overview

The KB26CKW01-5C-JB is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with illuminated panel mount design. This component operates at 1A (AC/DC) with 125V AC and 30V DC voltage ratings, incorporating red LED illumination at 1.9VDC nominal. The part is classified as obsolete, necessitating identification of active equivalent models to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

KB26CKW01-5C-JB

NKK SwitchesIn Stock: 970KB26CKW01-5C-JB Datasheet

Current PartRFQ

YB26CKW01-5C-JB

NKK SwitchesIn Stock: 729YB26CKW01-5C-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB26CKW01-5C-JB is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration (DPDT)
• Switch function (On-On)
• Voltage ratings (125V AC / 30V DC minimum)
• Mounting type (Panel Mount, Front)
• Illumination type and color (LED, Red)
• Illumination voltage (1.9VDC)
• Actuator type and color (Round Button, Clear with White Filter/Diffuser)
• Operating temperature range (-25°C to 50°C)

Allowable Variations:

• Current rating may exceed 1A (higher current capability is acceptable for direct substitution)
• Mechanical and electrical life ratings may exceed specified minimums
• Termination style may differ if electrical and mechanical compatibility is maintained
• Panel cutout diameter may increase if mechanical mounting accommodation is available

The YB26CKW01-5C-JB meets all mandatory matching parameters while providing enhanced performance characteristics, making it a qualified substitute for the obsolete KB26CKW01-5C-JB.

Parameter Comparison

Engineering Selection Recommendations

The YB26CKW01-5C-JB is an active product from NKK Switches and serves as the direct substitute for the obsolete KB26CKW01-5C-JB. Selection of the YB26CKW01-5C-JB is supported by the following factors:

Product Status: The YB26CKW01-5C-JB maintains active manufacturing status, ensuring long-term supply chain availability and continued technical support from the manufacturer.

Electrical Compatibility: The substitute part maintains identical voltage ratings (125V AC / 30V DC) and circuit configuration (DPDT On-On), with enhanced current capacity (3A versus 1A). This increased current rating provides additional design margin without compromising compatibility with existing circuit designs rated for 1A operation.

Mechanical Compatibility: Both parts feature identical mounting type (Panel Mount, Front), actuator configuration (Round Button, Clear with White Filter/Diffuser), and illumination specifications (LED, Red at 1.9VDC). Panel cutout diameter increases from 12.30mm to 16.00mm, requiring mechanical accommodation in the mounting panel.

Performance Enhancement: The YB26CKW01-5C-JB provides doubled mechanical life (200,000 cycles versus 100,000 cycles) and doubled electrical life (100,000 cycles versus 50,000 cycles), extending component reliability and service intervals.

Regulatory Compliance: Both parts share identical ECCN (EAR99), HTSUS classification (8536.50.9033), and MSL rating (1 - Unlimited), maintaining compliance with existing regulatory and supply chain requirements.

Termination Consideration: The substitute part offers dual termination options (Solder and Quick Connect - 0.110" / 2.8mm) compared to the original Solder Lug termination. Circuit board design modifications may be required to accommodate the alternative termination style.

Frequently Asked Questions (FAQ)

Q: Can the YB26CKW01-5C-JB directly replace the KB26CKW01-5C-JB without circuit modifications?

A: The YB26CKW01-5C-JB is electrically compatible with circuits designed for the KB26CKW01-5C-JB. The identical voltage ratings, circuit configuration, and current specifications ensure functional compatibility. However, the increased panel cutout diameter (16.00mm versus 12.30mm) requires mechanical accommodation in the mounting panel. Termination style differences may require circuit board design review.

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

A: The higher current rating of the YB26CKW01-5C-JB provides additional design margin and does not negatively affect circuits designed for 1A operation. The substitute part can safely handle the original design current without performance degradation.

Q: Are there mechanical mounting considerations when substituting these parts?

A: Yes. The panel cutout diameter increases from 12.30mm to 16.00mm. Existing mounting panels designed for the KB26CKW01-5C-JB require enlargement of the cutout to accommodate the YB26CKW01-5C-JB. Verify that the mounting panel material and surrounding component spacing allow for this dimensional change.

Q: How do the termination style differences affect substitution?

A: The KB26CKW01-5C-JB uses Solder Lug termination, while the YB26CKW01-5C-JB offers Solder and Quick Connect - 0.110" (2.8mm) options. If the original design uses Solder Lug connections, circuit board modifications are necessary to accommodate the alternative termination style. Consult the detailed pinout and termination specifications for both parts.

Q: What is the significance of the doubled mechanical and electrical life ratings?

A: The YB26CKW01-5C-JB provides 200,000 mechanical cycles and 100,000 electrical cycles compared to 100,000 and 50,000 cycles respectively for the KB26CKW01-5C-JB. This enhancement extends the component's operational lifespan and reduces maintenance frequency in applications with high switching cycles.

Q: Are there any regulatory or compliance differences between these parts?

A: Both parts share identical ECCN (EAR99), HTSUS classification (8536.50.9033), and MSL rating (1 - Unlimited). No regulatory or compliance barriers exist for substitution. The KB26CKW01-5C-JB is ROHS3 compliant; verify ROHS compliance status of the YB26CKW01-5C-JB with the manufacturer if required for your application.

Q: Why is the KB26CKW01-5C-JB classified as obsolete?

A: Obsolescence typically results from manufacturer discontinuation decisions based on market demand, product line consolidation, or transition to newer product series. The YB26CKW01-5C-JB represents the active equivalent within NKK Switches' current product portfolio, offering equivalent functionality with enhanced performance characteristics.