KB26SKW01B Equivalent & Substitute Parts

Part Overview

The KB26SKW01B is a DPDT pushbutton switch manufactured by NKK Switches, rated for 1A at 125V AC and 30V DC. This component features a plunger actuator with solder lug termination and is designed for standard panel mount, front installation with a 12.30mm circular panel cutout. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and redesign applications.

Substiute Parts

KB26SKW01B

NKK SwitchesIn Stock: 987KB26SKW01B Datasheet

Current PartRFQ

YB26SKW01

NKK SwitchesIn Stock: 743YB26SKW01 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB26SKW01B is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration (DPDT)
• Switch function (On-On)
• Mounting type (Panel Mount, Front)
• Actuator type (Plunger for Cap)
• Voltage ratings (125V AC minimum, 30V DC minimum)
• Operating temperature range (-25°C ~ 70°C minimum)
• RoHS compliance status

Allowable Variation Parameters:

• Current rating: Substitute must equal or exceed 1A
• Mechanical life: Substitute must equal or exceed 100,000 cycles
• Electrical life: Substitute must equal or exceed 50,000 cycles
• Termination style: May differ if electrical connection is maintained
• Panel cutout dimensions: May differ if mechanical installation is feasible

The YB26SKW01 meets all mandatory compatibility requirements 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 is a direct functional substitute for the KB26SKW01B based on electrical and operational compatibility. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Electrical Compatibility: The YB26SKW01 maintains identical voltage ratings (125V AC, 30V DC) and circuit configuration (DPDT On-On), with a higher current rating (3A vs. 1A) that provides additional design margin for the same application envelope.

Operational Compatibility: Both switches operate across the same temperature range (-25°C ~ 70°C) with identical actuator types and mounting configurations.

Product Status Advantage: The YB26SKW01 is in active production status, ensuring long-term availability and supply chain stability compared to the obsolete KB26SKW01B.

Installation Considerations: The YB26SKW01 requires a larger panel cutout (16.00mm vs. 12.30mm diameter) and features mixed termination options (Solder and Quick Connect 0.110") compared to the solder lug termination of the original part. Panel modifications and terminal adapter considerations may be necessary depending on the installation environment.

Frequently Asked Questions (FAQ)

Q: Can the YB26SKW01 directly replace the KB26SKW01B without any modifications?

A: Electrical substitution is direct. Mechanical installation requires panel cutout enlargement from 12.30mm to 16.00mm diameter. Termination style differs; the YB26SKW01 offers both solder and quick connect options versus solder lug only on the KB26SKW01B.

Q: What are the key electrical parameters that define substitution compatibility?

A: Circuit configuration (DPDT), switch function (On-On), voltage ratings (125V AC minimum, 30V DC minimum), and current rating (substitute must equal or exceed 1A) are the primary electrical criteria. Both parts meet these requirements.

Q: Does the higher current rating of the YB26SKW01 (3A vs. 1A) affect circuit design?

A: No. A higher current rating provides additional design margin and does not negatively impact circuits designed for 1A operation. The substitute is suitable for all applications within the original 1A specification.

Q: Are there compliance or certification differences between these parts?

A: Both the KB26SKW01B and YB26SKW01 are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution.

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

A: The YB26SKW01 requires a 16.00mm circular cutout versus 12.30mm for the KB26SKW01B. Existing panel installations designed for the original part will require mechanical modification to accommodate the larger diameter.

Q: How do the mechanical and electrical life ratings compare?

A: The YB26SKW01 exceeds both specifications: 200,000 mechanical cycles (vs. 100,000) and 100,000 electrical cycles (vs. 50,000). This provides extended component life in high-cycle applications.

Q: Is the YB26SKW01 available in the same packaging as the KB26SKW01B?

A: The YB26SKW01 is supplied in tray packaging. Original packaging information for the KB26SKW01B was not specified in the available data.