LB26SKW01-12-JB Equivalent & Substitute Parts

Part Overview

The LB26SKW01-12-JB is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with illuminated panel mount design. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations. The switch is rated for 3A at 125V AC and includes incandescent white illumination at 12 VAC nominal voltage.

Substiute Parts

LB26SKW01-12-JB

NKK SwitchesIn Stock: 1104LB26SKW01-12-JB Datasheet

Current PartRFQ

LB26SKW01-6B-JB

NKK SwitchesIn Stock: 738LB26SKW01-6B-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LB26SKW01-12-JB is determined by strict equivalence across the following critical parameters:

• Circuit configuration (DPDT)
• Switch function (On-On)
• Current rating (3A AC/DC)
• Voltage ratings (125V AC / 30V DC)
• Mounting type (Panel Mount, Snap-In)
• Panel cutout dimensions (Square - 16.20mm x 16.20mm)
• Termination style (Solder, Quick Connect - 0.110")
• Operating temperature range (-25°C ~ 50°C)
• Mechanical and electrical life specifications

The LB26SKW01-6B-JB meets all these core electrical and mechanical requirements. The primary difference lies in the illumination specification: the substitute uses LED white illumination at 3.3 VDC instead of incandescent white illumination at 12 VAC. This difference requires circuit-level evaluation in applications where illumination voltage compatibility is critical.

Parameter Comparison

Engineering Selection Recommendations

The LB26SKW01-6B-JB is the direct substitute for the obsolete LB26SKW01-12-JB. Both components maintain identical electrical ratings, mechanical specifications, and panel mounting characteristics. Both are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The substitute part carries active product status, ensuring ongoing availability and supply chain continuity. Selection of the LB26SKW01-6B-JB is appropriate for applications requiring DPDT pushbutton switch functionality with 3A/125V AC ratings and panel mount installation.

The illumination voltage difference (12 VAC to 3.3 VDC) must be evaluated within the context of the host system's power supply architecture. Applications utilizing 12 VAC illumination circuits require circuit modification to accommodate the 3.3 VDC LED illumination of the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the LB26SKW01-6B-JB directly replace the LB26SKW01-12-JB without circuit modification?

A: The switch contacts, mounting, and electrical ratings are fully compatible. However, the illumination circuit requires modification due to the voltage difference: the main part uses 12 VAC incandescent illumination, while the substitute uses 3.3 VDC LED illumination. If illumination is not used in the application, direct substitution is possible.

Q: What is the significance of the illumination type change from incandescent to LED?

A: The change from incandescent to LED illumination affects power consumption and circuit design. LED illumination operates at lower voltage (3.3 VDC) and lower power, requiring a separate power supply path from the 12 VAC incandescent design. The visual output characteristics may also differ.

Q: Are the panel cutout dimensions identical between both parts?

A: Yes. Both the LB26SKW01-12-JB and LB26SKW01-6B-JB require a square panel cutout of 16.20mm x 16.20mm. Mechanical installation is identical.

Q: Why is the main part classified as obsolete?

A: The LB26SKW01-12-JB is no longer in active production. The LB26SKW01-6B-JB represents the current active equivalent within the LB series, incorporating LED illumination technology.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the LB26SKW01-12-JB and LB26SKW01-6B-JB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.