KB26SKW01-12-JB Equivalent & Substitute Parts

Part Overview

The KB26SKW01-12-JB is a DPDT pushbutton switch manufactured by NKK Switches, designed for panel-mount applications with illuminated operation. This component features a 1A current rating at 125V AC and 30V DC, with incandescent white illumination powered at 12 VAC. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

KB26SKW01-12-JB

NKK SwitchesIn Stock: 904KB26SKW01-12-JB Datasheet

Current PartRFQ

YB26SKW01-5F12-JB

NKK SwitchesIn Stock: 1055YB26SKW01-5F12-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB26SKW01-12-JB is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration: DPDT
• Switch function: On-On
• Mounting type: Panel Mount, Front
• Voltage rating: 125V AC minimum / 30V DC minimum
• Operating temperature range: -25°C to 50°C minimum
• RoHS3 compliance

Allowable Variation Parameters:

• Current rating: May exceed 1A (higher ratings are backward compatible for lower-current applications)
• Illumination type: LED substitutes incandescent (functional equivalence with different power characteristics)
• Illumination voltage: 12V nominal (VAC or VDC acceptable for control circuit compatibility)
• Panel cutout diameter: Larger cutouts require mechanical redesign; smaller cutouts are incompatible
• Mechanical and electrical life: Higher values indicate improved durability
• Termination style: Solder Lug or Quick Connect acceptable based on assembly requirements

The YB26SKW01-5F12-JB meets all mandatory parameters while exceeding performance specifications in current rating, mechanical life, and electrical life.

Parameter Comparison

Engineering Selection Recommendations

The YB26SKW01-5F12-JB is a qualified substitute for the KB26SKW01-12-JB based on the following engineering criteria:

Electrical Compatibility: The substitute maintains identical voltage ratings (125V AC / 30V DC) and exceeds the current rating specification (3A versus 1A), ensuring full backward compatibility for existing circuit designs. DPDT On-On configuration is preserved.

Mechanical Compatibility: Both components feature identical mounting type (Panel Mount, Front) and operating temperature range (-25°C to 50°C). The substitute's larger panel cutout diameter (16.00mm versus 12.30mm) requires mechanical redesign of the panel interface.

Regulatory Compliance: Both components are ROHS3 compliant and carry identical ECCN and HTSUS classifications, meeting regulatory requirements for equivalent substitution.

Product Status: The substitute is classified as Active, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Performance Enhancement: The substitute provides doubled mechanical life (200,000 versus 100,000 cycles) and doubled electrical life (100,000 versus 50,000 cycles), indicating improved component durability.

Illumination Consideration: The substitute employs LED green illumination powered at 12 VDC, replacing the incandescent white illumination at 12 VAC. This change requires verification of control circuit compatibility with the illumination power source.

Frequently Asked Questions (FAQ)

Q: Can YB26SKW01-5F12-JB directly replace KB26SKW01-12-JB without circuit modification?

A: Electrical substitution is direct for the switch function and voltage ratings. However, illumination circuit modification is required due to the change from 12 VAC incandescent to 12 VDC LED. The larger panel cutout diameter (16.00mm versus 12.30mm) requires mechanical panel redesign.

Q: What is the impact of the higher current rating (3A versus 1A) on system design?

A: The substitute's 3A rating exceeds the original 1A specification, providing design margin for existing applications. No circuit modification is required; the higher rating ensures compatibility with the original design envelope.

Q: Are there compatibility issues with the panel cutout size difference?

A: The substitute requires a larger panel cutout (16.00mm diameter versus 12.30mm). Existing panel designs must be mechanically modified to accommodate the larger diameter. This is a mechanical constraint, not an electrical one.

Q: How does the LED illumination differ from the original incandescent illumination?

A: The substitute uses LED green illumination at 12 VDC, while the original uses incandescent white at 12 VAC. LED illumination typically offers longer operational life and lower power consumption. The control circuit must supply 12 VDC instead of 12 VAC to the illumination circuit.

Q: Is the substitute suitable for applications requiring extended operational life?

A: Yes. The substitute provides doubled mechanical life (200,000 cycles) and doubled electrical life (100,000 cycles) compared to the original, making it suitable for high-cycle-count applications.

Q: What are the regulatory implications of this substitution?

A: Both components are ROHS3 compliant with identical ECCN (EAR99) and HTSUS (8536.50.9033) classifications. No regulatory barriers exist for substitution in equivalent applications.