KB26KKW01B-A Equivalent & Substitute Parts

Part Overview

The KB26KKW01B-A is a miniature pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with On-On switching function. This component is designed for standard panel mount, snap-in applications with a circular 12.30mm diameter cutout. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

KB26KKW01B-A

NKK SwitchesIn Stock: 1213KB26KKW01B-A Datasheet

Current PartRFQ

LB26SKW01-A

NKK SwitchesIn Stock: 1143LB26SKW01-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB26KKW01B-A is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must remain DPDT
• Switch function must be On-On
• Current rating must meet or exceed 1A (AC/DC)
• Voltage ratings must support minimum 125V AC and 30V DC operation

Mechanical Compatibility Requirements:

• Mounting type must be Panel Mount, Snap-In
• Actuator type must be Square, Button configuration
• Operating temperature range must encompass -25°C ~ 70°C

Environmental & Compliance Requirements:

• RoHS3 compliance required
• Moisture Sensitivity Level 1 (Unlimited) acceptable

The LB26SKW01-A meets all substitution criteria with enhanced electrical performance characteristics and extended mechanical durability.

Parameter Comparison

Engineering Selection Recommendations

The LB26SKW01-A is the qualified substitute for KB26KKW01B-A applications. Selection is based on the following factors:

Compliance & Availability: The substitute part maintains ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment. The main part's obsolete status necessitates transition to an active equivalent.

Electrical Performance: The LB26SKW01-A provides enhanced current rating (3A versus 1A), maintaining full compatibility with the original 125V AC and 30V DC voltage specifications. This increased current capacity provides design margin for existing applications.

Mechanical Durability: The substitute offers doubled mechanical life (200,000 cycles versus 100,000 cycles) and doubled electrical life (100,000 cycles versus 50,000 cycles), extending component service intervals.

Physical Integration: Both components utilize identical mounting methodology (Panel Mount, Snap-In) with matching actuator configuration (Square, Button). Temperature operating range remains consistent at -25°C ~ 70°C.

Frequently Asked Questions (FAQ)

Q: Can LB26SKW01-A directly replace KB26KKW01B-A in existing designs?

A: Yes. Both components share identical DPDT On-On circuit configuration, matching voltage ratings (125V AC / 30V DC), and compatible panel mount snap-in mechanical interfaces. The substitute's higher current rating (3A) and extended mechanical life provide enhanced performance margins.

Q: What are the key differences between these parts?

A: Primary differences include current rating (1A to 3A), mechanical life (100,000 to 200,000 cycles), electrical life (50,000 to 100,000 cycles), termination style (Solder Lug to Solder/Quick Connect), and panel cutout dimensions (Circular 12.30mm to Square 16.20mm). The substitute part is active versus obsolete.

Q: Are there packaging considerations for the LB26SKW01-A?

A: The substitute is supplied in Bulk packaging. Verify packaging requirements for your procurement process, as the original part was supplied with standard packaging designation.

Q: Does the panel cutout dimension change affect installation?

A: Yes. The substitute requires a square 16.20mm x 16.20mm cutout versus the original circular 12.30mm diameter cutout. Panel modifications may be necessary for mechanical integration.

Q: Are both parts RoHS compliant?

A: Yes. Both KB26KKW01B-A and LB26SKW01-A maintain ROHS3 compliance with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and regulatory requirements.