KB26CKW01-05-JB Equivalent & Substitute Parts

Part Overview

The KB26CKW01-05-JB is a DPDT pushbutton switch manufactured by NKK Switches, designed for panel-mount applications with illuminated operation. This component features a 1A current rating at 125V AC and incandescent white illumination at 5VAC. The product is currently obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

KB26CKW01-05-JB

NKK SwitchesIn Stock: 1117KB26CKW01-05-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 KB26CKW01-05-JB is determined by the following critical parameters:

Core Functional Requirements:

• Circuit configuration must remain DPDT
• Switch function must be On-On
• Mounting type must be Panel Mount, Front
• Actuator type must be Round, Button
• Operating temperature range must encompass -25°C to 50°C

Electrical Compatibility Criteria:

• Voltage rating (AC) must be ≥125V
• Voltage rating (DC) must be ≥30V
• Current rating must be ≥1A
• Illumination voltage must be compatible with 5V supply

Mechanical Compatibility Criteria:

• Panel cutout diameter must accommodate the original 12.30mm specification or be compatible with existing panel openings
• Termination style must be compatible with existing circuit board connections
• Mechanical life must meet or exceed 100,000 cycles

The YB26CKW01-5F05-JB meets the core functional and electrical requirements while introducing design improvements in durability and illumination technology.

Parameter Comparison

Engineering Selection Recommendations

The YB26CKW01-5F05-JB is a valid substitute for the obsolete KB26CKW01-05-JB based on the following engineering criteria:

Compliance & Certification: Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications requiring environmental compliance.

Electrical Performance: The substitute part provides superior current handling capacity (3A versus 1A), maintaining full compatibility with the original 125V AC and 30V DC voltage specifications. This increased current rating provides design margin for applications operating at or near the original component's rated capacity.

Mechanical Durability: The YB26CKW01-5F05-JB demonstrates enhanced mechanical and electrical life ratings (200,000 and 100,000 cycles respectively versus 100,000 and 50,000 cycles), extending component service life in high-cycle applications.

Design Considerations: Panel cutout diameter increases from 12.30mm to 16.00mm, requiring panel modification or use of adapter hardware for direct mechanical replacement. Termination style changes from solder lug to solder with quick connect options, necessitating circuit board connection redesign. Illumination transitions from incandescent white (5VAC) to LED green (5VDC), requiring illumination circuit modification.

Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the YB26CKW01-5F05-JB be used as a direct mechanical replacement?

A: No. The panel cutout diameter differs (16.00mm versus 12.30mm), requiring panel modification. Additionally, the termination style changes from solder lug to solder with quick connect, necessitating circuit board connection redesign.

Q: Are the electrical ratings compatible?

A: Yes. The substitute part maintains 125V AC and 30V DC voltage ratings identical to the original. The increased current rating (3A versus 1A) provides additional capacity while remaining backward compatible with circuits designed for 1A operation.

Q: What changes are required for illumination?

A: The original component uses incandescent white illumination at 5VAC. The substitute uses LED green illumination at 5VDC. This requires modification of the illumination power supply from AC to DC and adjustment of current-limiting circuitry for LED operation.

Q: Are both components RoHS compliant?

A: Yes. Both KB26CKW01-05-JB and YB26CKW01-5F05-JB are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Q: What is the mechanical life difference?

A: The substitute part provides 200,000 mechanical cycles compared to 100,000 cycles for the original, representing a 2x improvement in mechanical durability. Electrical life also doubles from 50,000 to 100,000 cycles.

Q: Is the substitute part currently available?

A: Yes. The YB26CKW01-5F05-JB maintains active product status with 930 pieces in stock, ensuring supply availability. The original KB26CKW01-05-JB is obsolete.