KB26CKW01-A Equivalent & Substitute Parts

Part Overview

The KB26CKW01-A is a pushbutton switch with DPDT (Double Pole Double Throw) circuit configuration, rated for 1A at 125V AC and 30V DC. Manufactured by NKK Switches, this component features a standard panel mount design with a circular 12.30mm diameter cutout and solder lug termination. The product is classified as obsolete, making identification of equivalent substitute parts essential for ongoing maintenance, repair, and design continuity in applications requiring DPDT pushbutton switching functionality.

Substiute Parts

KB26CKW01-A

NKK SwitchesIn Stock: 1008KB26CKW01-A Datasheet

Current PartRFQ

YB26WCKW01-A

NKK SwitchesIn Stock: 1097YB26WCKW01-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB26CKW01-A is determined by the following critical parameters that must remain compatible:

Mandatory Compatibility Parameters:

• Circuit Configuration: DPDT (Double Pole Double Throw)
• Switch Function: On-On
• Voltage Rating - AC: 125V minimum
• Voltage Rating - DC: 30V minimum
• Mounting Type: Panel Mount, Front
• Actuator Type: Round, Button
• Operating Temperature Range: -25°C to 70°C minimum
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Current Rating: May exceed 1A (higher current ratings are backward compatible for lower-current applications)
• Mechanical Life: May exceed 100,000 cycles
• Electrical Life: May exceed 50,000 cycles
• Panel Cutout Dimensions: Larger cutouts require mechanical redesign; smaller cutouts are incompatible
• Termination Style: May differ if circuit board layout permits
• Ingress Protection: Enhanced ratings (IP65) are acceptable upgrades

The YB26WCKW01-A meets all mandatory compatibility parameters while offering enhanced electrical and mechanical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The YB26WCKW01-A is a direct functional substitute for the obsolete KB26CKW01-A. Both components are manufactured by NKK Switches and maintain identical DPDT circuit configuration, voltage ratings, and operating temperature specifications. Both are ROHS3 compliant and carry unlimited moisture sensitivity ratings.

The YB26WCKW01-A offers enhanced performance with 3A current capacity (versus 1A), doubled mechanical life (200,000 cycles), doubled electrical life (100,000 cycles), and IP65 ingress protection. The product status of YB26WCKW01-A is active, ensuring continued availability and supply chain stability.

Primary design consideration: The YB26WCKW01-A requires a 16.00mm diameter panel cutout compared to the KB26CKW01-A's 12.30mm diameter. Panel redesign is necessary for mechanical integration. Termination options differ; the substitute provides both solder and quick connect terminals, offering installation flexibility.

Frequently Asked Questions (FAQ)

Q: Can the YB26WCKW01-A directly replace the KB26CKW01-A without circuit modifications?

A: Yes, from an electrical standpoint. Both components share identical DPDT circuit configuration, On-On switch function, and voltage ratings (125V AC, 30V DC). The higher current rating of the YB26WCKW01-A (3A versus 1A) is backward compatible with applications designed for 1A operation. However, panel cutout dimensions differ (16.00mm versus 12.30mm), requiring mechanical redesign of the mounting interface.

Q: What are the key differences between these two parts?

A: The YB26WCKW01-A provides enhanced durability with 200,000 mechanical cycles and 100,000 electrical cycles compared to the KB26CKW01-A's 100,000 and 50,000 cycles respectively. The substitute includes IP65 ingress protection and offers dual termination options (solder and quick connect). The KB26CKW01-A uses solder lug termination exclusively. The YB26WCKW01-A is an active product with ongoing manufacturer support, while the KB26CKW01-A is obsolete.

Q: Are there any electrical limitations when using the YB26WCKW01-A in place of the KB26CKW01-A?

A: No. The YB26WCKW01-A meets or exceeds all electrical specifications of the KB26CKW01-A. Both operate across the same temperature range (-25°C to 70°C) and maintain identical voltage ratings. The increased current capacity of the substitute does not create compatibility issues in circuits designed for lower current operation.

Q: What mechanical considerations apply to this substitution?

A: The panel cutout diameter increases from 12.30mm to 16.00mm. Existing panel designs must be modified to accommodate the larger mounting hole. The termination style change from solder lug to solder/quick connect options may require circuit board layout adjustments, though both termination methods are compatible with standard PCB assembly processes.

Q: Is the YB26WCKW01-A suitable for applications requiring the same environmental protection as the KB26CKW01-A?

A: Yes. The YB26WCKW01-A provides enhanced environmental protection with IP65 rating (dust tight, water resistant), exceeding the specifications of the KB26CKW01-A. Both components carry identical moisture sensitivity levels (MSL 1 - Unlimited) and RoHS3 compliance status.