KB26SKW01-5C-AB Equivalent & Substitute Parts

Part Overview

The KB26SKW01-5C-AB is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with illuminated panel mount design. This component is rated for 1A at 125V AC and 30V DC, with red LED illumination at 1.9VDC nominal. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this circuit topology is required.

Substiute Parts

KB26SKW01-5C-AB

NKK SwitchesIn Stock: 876KB26SKW01-5C-AB Datasheet

Current PartRFQ

YB26SKW01-5C-AB

NKK SwitchesIn Stock: 997YB26SKW01-5C-AB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB26SKW01-5C-AB is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration (DPDT)
• Switch function (On-On)
• Mounting type (Panel Mount, Front)
• Illumination type and color (LED, Red)
• Illumination voltage (1.9VDC nominal)
• Operating temperature range (-25°C to 50°C)
• Compliance certifications (RoHS3, REACH, ECCN)

Allowable Variation Parameters:

• Current rating (substitute must meet or exceed 1A requirement)
• Voltage ratings (substitute must meet or exceed 125V AC and 30V DC)
• Mechanical and electrical life (substitute may exceed specified cycles)
• Panel cutout diameter (physical accommodation required in application)
• Termination style (application-dependent; may require adapter consideration)

The YB26SKW01-5C-AB qualifies as a substitute based on matching all mandatory parameters while exceeding performance specifications in current rating (3A vs. 1A), mechanical life (200,000 vs. 100,000 cycles), and electrical life (100,000 vs. 50,000 cycles).

Parameter Comparison

Engineering Selection Recommendations

The YB26SKW01-5C-AB is a direct functional substitute for the obsolete KB26SKW01-5C-AB. Both components maintain identical electrical specifications for voltage and circuit topology, with the substitute offering enhanced performance margins in current capacity and operational life cycles. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility.

The primary design consideration is the panel cutout diameter increase from 12.30mm to 16.00mm. Applications utilizing the KB26SKW01-5C-AB require mechanical accommodation of the larger aperture in the YB26SKW01-5C-AB. Additionally, the termination style differs: the original uses solder lugs while the substitute provides both solder and quick connect options, allowing flexible integration into existing harness designs.

The active product status of the YB26SKW01-5C-AB ensures ongoing availability and supply chain continuity compared to the obsolete KB26SKW01-5C-AB.

Frequently Asked Questions (FAQ)

Q: Can the YB26SKW01-5C-AB directly replace the KB26SKW01-5C-AB in existing designs?

A: Electrical substitution is valid. The YB26SKW01-5C-AB maintains identical DPDT circuit configuration, voltage ratings, and illumination specifications. Mechanical integration requires verification that the panel cutout can accommodate the 16.00mm diameter of the substitute versus the 12.30mm diameter of the original.

Q: What is the significance of the higher current rating (3A vs. 1A) on the substitute?

A: The YB26SKW01-5C-AB's 3A current rating provides additional design margin and operational headroom. Applications drawing 1A or less operate within safe limits on the substitute. The higher rating does not affect circuit behavior or illumination performance.

Q: Are there termination compatibility concerns?

A: The KB26SKW01-5C-AB uses solder lug termination while the YB26SKW01-5C-AB offers solder and quick connect options. Existing solder lug connections can be adapted to the substitute's termination style through standard connector interfaces or direct soldering to the solder pads.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the KB26SKW01-5C-AB and YB26SKW01-5C-AB are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity levels are identical at MSL 1 (Unlimited).

Q: What is the impact of the increased mechanical and electrical life ratings?

A: The YB26SKW01-5C-AB provides extended operational life (200,000 mechanical cycles and 100,000 electrical cycles versus 100,000 and 50,000 respectively). This represents improved durability and reliability margins for applications requiring extended service intervals.