KB26SKW01-A Equivalent & Substitute Parts

Part Overview

The KB26SKW01-A is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with On-On switching function. This component is rated for 1A at 125V AC and 30V DC, designed for standard panel mount front installation with a circular 12.30mm diameter cutout. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and new design applications where equivalent functionality is required.

Substiute Parts

KB26SKW01-A

NKK SwitchesIn Stock: 1237KB26SKW01-A Datasheet

Current PartRFQ

YB26WSKW01-EB

NKK SwitchesIn Stock: 1062YB26WSKW01-EB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB26SKW01-A is determined by the following critical parameters:

Core Electrical Requirements:

• Circuit configuration must be DPDT
• Switch function must be On-On
• Voltage ratings must meet or exceed: 125V AC and 30V DC
• Current rating must be equal to or greater than 1A

Mechanical & Installation Requirements:

• Mounting type must be Panel Mount, Front
• Actuator type must be Square, Button
• Panel cutout diameter must be compatible with 12.30mm circular opening or smaller
• Termination style must support solder connection capability

Environmental & Compliance Requirements:

• Operating temperature range must encompass -25°C to 70°C
• RoHS3 compliance required
• Mechanical and electrical life specifications should support equivalent or superior performance

The YB26WSKW01-EB meets these substitution criteria with enhanced electrical ratings (3A current capacity, 200,000 mechanical cycles, 100,000 electrical cycles) while maintaining DPDT On-On configuration and panel mount front installation. However, the larger 16.00mm panel cutout diameter and different termination options (Solder, Quick Connect) represent design modifications that require mechanical and electrical integration assessment.

Parameter Comparison

Engineering Selection Recommendations

The YB26WSKW01-EB is an active product substitute for the obsolete KB26SKW01-A, offering functional equivalence with enhanced electrical performance specifications. Both components maintain ROHS3 compliance and identical voltage ratings across AC and DC operating ranges.

Substitution Feasibility:

The YB26WSKW01-EB provides superior electrical life (100,000 cycles versus 50,000 cycles) and mechanical life (200,000 cycles versus 100,000 cycles), supporting extended service intervals and improved reliability in equivalent applications. The increased current rating (3A versus 1A) ensures compatibility with applications requiring higher switching capacity.

Design Integration Considerations:

The panel cutout diameter increase from 12.30mm to 16.00mm requires mechanical panel modification. The termination style expansion to include Quick Connect options provides installation flexibility beyond the original solder lug configuration. The addition of IP65 ingress protection rating enhances environmental resilience in applications exposed to dust and moisture.

Both components maintain identical operating temperature ranges (-25°C to 70°C) and equivalent actuator geometry (Square, Button), supporting direct functional replacement in control panel and instrumentation applications.

Frequently Asked Questions (FAQ)

Q: Can the YB26WSKW01-EB directly replace the KB26SKW01-A without panel modification?

A: Functional replacement is possible; however, the panel cutout diameter differs (16.00mm versus 12.30mm). Panel drilling or enlargement is required for mechanical installation. Electrical and switching characteristics are compatible.

Q: What are the key differences in electrical performance between these components?

A: The YB26WSKW01-EB supports 3A current capacity compared to the KB26SKW01-A's 1A rating. Electrical life is doubled (100,000 versus 50,000 cycles), and mechanical life is doubled (200,000 versus 100,000 cycles). Voltage ratings remain identical at 125V AC and 30V DC.

Q: Are both components RoHS compliant?

A: Yes, both the KB26SKW01-A and YB26WSKW01-EB are ROHS3 compliant, meeting current environmental and material restriction standards.

Q: What termination options are available for the substitute part?

A: The YB26WSKW01-EB offers dual termination capability: Solder Lug (compatible with the original KB26SKW01-A) and Quick Connect 0.110" (2.8mm) terminals, providing installation flexibility.

Q: Does the YB26WSKW01-EB provide environmental protection advantages?

A: Yes, the YB26WSKW01-EB includes IP65 ingress protection (Dust Tight, Water Resistant), whereas the KB26SKW01-A does not specify ingress protection. This enhancement supports deployment in more demanding environmental conditions.

Q: Are the actuator types identical between the two components?

A: Yes, both components feature Square, Button actuator types with identical mechanical geometry, supporting equivalent user interface experience and panel integration.

Q: What is the product availability status for each component?

A: The KB26SKW01-A is classified as obsolete with 1,141 pieces in current inventory. The YB26WSKW01-EB is an active product with 1,032 pieces in current inventory, ensuring ongoing supply availability.