KB26CKW01-01-JB Equivalent & Substitute Parts

Part Overview

The KB26CKW01-01-JB is a miniature illuminated pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with neon white illumination. This component is designed for panel-mount front installation with a 12.30mm circular cutout. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications where this switch is specified.

Substiute Parts

KB26CKW01-01-JB

NKK SwitchesIn Stock: 993KB26CKW01-01-JB Datasheet

Current PartRFQ

YB26CKW01-5F05-JB

NKK SwitchesIn Stock: 966YB26CKW01-5F05-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB26CKW01-01-JB is determined by the following critical parameters:

Core Electrical Compatibility:

• Circuit configuration must remain DPDT
• Switch function must be On-On
• Voltage ratings must meet or exceed the original specifications (125V AC minimum, 30V DC minimum)
• Current rating must support the application requirements

Mechanical Compatibility:

• Mounting type must be Panel Mount, Front
• Actuator type must be Round, Button
• Panel cutout dimensions must accommodate the physical installation

Functional Compatibility:

• Illumination capability must be present
• Operating temperature range must cover the application environment (-25°C to 50°C)
• Termination style must be compatible with existing circuit board or wiring infrastructure

The YB26CKW01-5F05-JB meets these core substitution criteria while offering enhanced electrical and mechanical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The YB26CKW01-5F05-JB is the designated substitute for the obsolete KB26CKW01-01-JB. Selection of this substitute is supported by the following engineering factors:

Product Availability: The KB26CKW01-01-JB is obsolete and no longer manufactured. The YB26CKW01-5F05-JB is an active product with current manufacturing support and inventory availability.

Electrical Compliance: Both components maintain ROHS3 compliance and identical voltage ratings (125V AC, 30V DC). The substitute provides enhanced current capacity (3A versus 1A), ensuring compatibility with applications requiring the original 1A specification while supporting higher-current applications.

Mechanical Compatibility: Both switches feature identical mounting configurations (Panel Mount, Front) and actuator types (Round, Button). The substitute accommodates a larger panel cutout (16.00mm versus 12.30mm), requiring panel modification for direct replacement in existing installations.

Performance Enhancement: The substitute offers doubled mechanical life (200,000 versus 100,000 cycles) and doubled electrical life (100,000 versus 50,000 cycles), providing extended service intervals and improved reliability.

Illumination Consideration: The substitute employs LED green illumination at 5 VDC instead of neon white at 110 VAC. This represents a functional change requiring circuit redesign for the illumination supply voltage and visual indication color.

Frequently Asked Questions (FAQ)

Q: Can the YB26CKW01-5F05-JB be directly installed in place of the KB26CKW01-01-JB without modifications?

A: Direct mechanical installation is not possible without panel modification. The substitute requires a 16.00mm circular cutout compared to the original 12.30mm diameter. The termination style differs (Quick Connect 0.110" versus Solder Lug), requiring circuit board or wiring changes. The illumination voltage differs (5 VDC versus 110 VAC), necessitating redesign of the illumination supply circuit.

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

A: Yes, the core electrical ratings are compatible. Both switches feature DPDT configuration with On-On function, 125V AC and 30V DC ratings, and identical operating temperature ranges. The substitute's 3A current rating exceeds the original 1A specification, making it suitable for applications requiring the original rating.

Q: What is the primary reason for substitution?

A: The KB26CKW01-01-JB is obsolete and no longer manufactured. The YB26CKW01-5F05-JB is the active NKK Switches product offering equivalent circuit functionality with enhanced performance characteristics and current manufacturing availability.

Q: Does the illumination color change affect compatibility?

A: The illumination color changes from white (neon) to green (LED). This is a functional change that affects visual indication and requires evaluation of the application's signaling requirements. The illumination voltage also changes from 110 VAC to 5 VDC, requiring circuit redesign.

Q: What are the packaging differences?

A: The original KB26CKW01-01-JB was packaged as individual units. The substitute YB26CKW01-5F05-JB is supplied in bulk packaging. Procurement quantities and handling procedures may differ accordingly.