KB26CKW01-5F-JB Equivalent & Substitute Parts

Part Overview

The KB26CKW01-5F-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 LED green illumination for operator feedback. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system maintenance and new design implementations where this series is no longer available through standard procurement channels.

Substiute Parts

KB26CKW01-5F-JB

NKK SwitchesIn Stock: 798KB26CKW01-5F-JB Datasheet

Current PartRFQ

YB26CKW01-5F-JB

NKK SwitchesIn Stock: 1126YB26CKW01-5F-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The YB26CKW01-5F-JB qualifies as a functional substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• DPDT circuit configuration and On-On switch function
• Panel mount, front installation orientation
• Round button actuator with identical actuator marking (no marking)
• LED green illumination with compatible voltage operation (2.1 VDC vs. 2.2 VDC nominal)
• Identical voltage ratings: 125V AC and 30V DC
• Operating temperature range: -25°C to 50°C
• RoHS3 compliance and REACH unaffected status
• Solder termination capability (primary termination differs but quick connect option available)

Substitution Constraints:

• Current rating increase from 1A to 3A represents an uprated capability suitable for applications requiring higher switching capacity
• Panel cutout diameter increases from 12.30mm to 16.00mm, requiring mechanical panel modification
• Mechanical life doubles from 100,000 to 200,000 cycles; electrical life doubles from 50,000 to 100,000 cycles
• YB26CKW01-5F-JB maintains active product status with current manufacturing support

Parameter Comparison

Engineering Selection Recommendations

The YB26CKW01-5F-JB serves as the primary equivalent for KB26CKW01-5F-JB applications based on electrical circuit equivalence and compliance alignment. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory consistency across design generations.

Selection of YB26CKW01-5F-JB is appropriate for:

• Replacement in existing KB26CKW01-5F-JB installations where current demand does not exceed 1A, as the 3A rating provides operational margin
• New designs requiring DPDT illuminated pushbutton functionality with active product support and extended component lifecycle
• Applications where panel mechanical modification to accommodate the 16.00mm cutout diameter is feasible

The substitute's active product status ensures continued availability, technical support, and supply chain reliability compared to the obsolete KB26CKW01-5F-JB.

Frequently Asked Questions (FAQ)

Q: Can YB26CKW01-5F-JB directly replace KB26CKW01-5F-JB without modifications?

A: Electrical substitution is direct; however, mechanical panel modification is required. The YB26CKW01-5F-JB requires a 16.00mm diameter cutout versus the original 12.30mm diameter. Panel drilling or enlargement is necessary for proper installation.

Q: What is the impact of the 3A current rating on a 1A application?

A: The YB26CKW01-5F-JB's 3A rating represents an uprated capability. In applications drawing 1A or less, the substitute operates within safe margins with no adverse effects. The higher rating provides design flexibility for future current requirement changes.

Q: Are the illumination voltages compatible?

A: Yes. The KB26CKW01-5F-JB operates at 2.1 VDC nominal illumination voltage, while the YB26CKW01-5F-JB operates at 2.2 VDC nominal. This 0.1 VDC variance falls within standard LED operating tolerance and does not affect functional compatibility or brightness perception.

Q: What termination options are available for the substitute?

A: The YB26CKW01-5F-JB provides dual termination: solder connection and quick connect 0.110" (2.8mm) terminals. The original KB26CKW01-5F-JB uses solder lug termination exclusively. Both termination methods on the substitute support equivalent electrical connection.

Q: Does the extended mechanical and electrical life of the substitute affect compatibility?

A: No. Extended life ratings (200,000 mechanical cycles and 100,000 electrical cycles versus 100,000 and 50,000 respectively) represent improved component durability and do not impact electrical or mechanical compatibility with existing circuit designs.

Q: Are both components RoHS compliant?

A: Yes. Both KB26CKW01-5F-JB and YB26CKW01-5F-JB maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications subject to environmental compliance requirements.