KB26SKW01-BB Equivalent & Substitute Parts

Part Overview

The KB26SKW01-BB is a pushbutton switch manufactured by NKK Switches, configured as a DPDT (Double Pole Double Throw) standard panel mount component with On-On switching function. This part is rated for 1A at 125V AC and 30V DC, featuring a white square button actuator with solder lug termination. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

KB26SKW01-BB

NKK SwitchesIn Stock: 836KB26SKW01-BB Datasheet

Current PartRFQ

YB26SKW01-BB

NKK SwitchesIn Stock: 1137YB26SKW01-BB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Circuit configuration must remain DPDT to maintain electrical functionality. Switch function must be On-On to preserve operational behavior. Voltage ratings must meet or exceed the original specifications: minimum 125V AC and 30V DC. Mounting type must be Panel Mount, Front to ensure mechanical compatibility. Actuator type must be Square, Button to maintain user interface consistency. Operating temperature range must encompass or match the original -25°C ~ 70°C specification. RoHS and compliance certifications must be maintained or improved.

The YB26SKW01-BB qualifies as a substitute part because it maintains identical circuit configuration (DPDT), switch function (On-On), voltage ratings (125V AC / 30V DC), mounting type (Panel Mount, Front), actuator type (Square, Button), and operating temperature range (-25°C ~ 70°C). The substitute part exceeds the original specifications in current rating (3A versus 1A), mechanical life (200,000 versus 100,000 cycles), and electrical life (100,000 versus 50,000 cycles), making it functionally compatible for applications within the original current envelope.

Parameter Comparison

Engineering Selection Recommendations

The YB26SKW01-BB is the qualified substitute for KB26SKW01-BB applications. The substitute part is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete main part. Both parts maintain identical compliance classifications under EAR99 export control and share the same HTSUS commodity code, confirming regulatory equivalence.

The primary design consideration is termination style: the main part uses Solder Lug termination, while the substitute offers Solder and Quick Connect - 0.110" (2.8mm) termination options. Panel cutout dimensions differ (12.30mm versus 16.00mm), requiring mechanical panel modification if physical mounting constraints are present. Current rating elevation (3A versus 1A) and extended mechanical/electrical life cycles provide enhanced performance margins for the substitute part within the original application envelope.

Frequently Asked Questions (FAQ)

Q: Can YB26SKW01-BB directly replace KB26SKW01-BB in existing designs?

A: Electrical substitution is valid because both parts maintain identical DPDT circuit configuration, On-On switch function, and voltage ratings (125V AC / 30V DC). Mechanical substitution requires verification of panel cutout dimensions: KB26SKW01-BB requires 12.30mm circular cutout while YB26SKW01-BB requires 16.00mm circular cutout. Termination style differs; verify PCB or wiring compatibility with the substitute's Solder and Quick Connect termination options.

Q: What are the key differences between these parts?

A: Current rating increases from 1A to 3A. Mechanical life extends from 100,000 to 200,000 cycles. Electrical life extends from 50,000 to 100,000 cycles. Panel cutout diameter increases from 12.30mm to 16.00mm. Termination style changes from Solder Lug to Solder and Quick Connect - 0.110" (2.8mm). Product status changes from Obsolete to Active.

Q: Are compliance certifications equivalent?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.50.9033) classifications. Both maintain MSL 1 (Unlimited) moisture sensitivity rating. The main part specifies ROHS3 compliance; the substitute part's RoHS status is not specified in available documentation.

Q: What is the impact of different panel cutout dimensions?

A: The 3.70mm increase in panel cutout diameter (from 12.30mm to 16.00mm) requires mechanical panel modification if the substitute is used in existing equipment. New designs should accommodate the larger 16.00mm cutout dimension of the YB26SKW01-BB.

Q: Is the higher current rating of the substitute part a concern?

A: No. The 3A rating of YB26SKW01-BB exceeds the 1A requirement of the original application, providing additional performance margin. Applications designed for 1A operation remain fully compatible with the 3A-rated substitute part.