LB25SKW01-12-JF Equivalent & Substitute Parts

Part Overview

The LB25SKW01-12-JF is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with illumination capability. This component is designed for panel-mount, snap-in applications requiring 3A switching capacity at 125V AC or 30V DC. The part is currently listed as obsolete, making identification of compatible substitutes essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

LB25SKW01-12-JF

NKK SwitchesIn Stock: 731LB25SKW01-12-JF Datasheet

Current PartRFQ

LB25SKW01-5F12-JF

NKK SwitchesIn Stock: 971LB25SKW01-5F12-JF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The LB25SKW01-5F12-JF qualifies as a direct substitute based on the following critical parameters:

Electrical Compatibility:

• Identical DPDT circuit configuration
• Matching current rating of 3A (AC/DC)
• Identical voltage ratings: 125V AC and 30V DC
• Same switch function: On-Mom (momentary operation)

Mechanical Compatibility:

• Identical mounting type: Panel Mount, Snap-In
• Matching panel cutout dimensions: Square 16.20mm x 16.20mm
• Same actuator type: Square Button with no marking
• Identical termination style: Solder, Quick Connect - 0.110" (2.8mm)

Environmental & Operational Compatibility:

• Matching operating temperature range: -25°C to 50°C
• Identical mechanical life rating: 1,000,000 cycles
• Identical electrical life rating: 100,000 cycles
• Same MSL rating: 1 (Unlimited)

Regulatory Compliance:

• Both ROHS3 compliant
• Identical ECCN and HTSUS classifications

Key Difference: The primary distinction is the illumination technology: the LB25SKW01-12-JF uses incandescent illumination at 12V AC, while the LB25SKW01-5F12-JF uses LED illumination at 12V DC. Both operate at the same nominal voltage magnitude (12V) with compatible connector interfaces.

Parameter Comparison

Engineering Selection Recommendations

The LB25SKW01-5F12-JF is a qualified substitute for the obsolete LB25SKW01-12-JF based on electrical, mechanical, and environmental parameter equivalence. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The primary consideration for selection is the illumination technology transition from incandescent (12V AC) to LED (12V DC). This change requires verification that the control circuit supplying illumination voltage can accommodate DC operation. The LED variant offers improved energy efficiency and extended operational life compared to incandescent technology.

Both parts maintain identical ROHS3 compliance and regulatory classifications, supporting direct substitution in applications requiring equivalent electrical and mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the LB25SKW01-5F12-JF directly replace the LB25SKW01-12-JF in existing assemblies?

A: Yes, provided the illumination supply circuit is compatible with 12V DC operation. The electrical switching characteristics, mechanical mounting, and panel cutout dimensions are identical. The control circuit must supply DC voltage rather than AC voltage for the illumination function.

Q: What is the primary difference between these two parts?

A: The illumination technology differs: the original part uses incandescent illumination powered by 12V AC, while the substitute uses LED illumination powered by 12V DC. All switching and mechanical parameters are equivalent.

Q: Are both parts ROHS3 compliant?

A: Yes, both the LB25SKW01-12-JF and LB25SKW01-5F12-JF are ROHS3 compliant and share identical regulatory classifications.

Q: What are the panel mounting requirements for this switch?

A: Both parts require a square panel cutout of 16.20mm x 16.20mm and utilize snap-in mounting. The termination connectors are Quick Connect style at 0.110" (2.8mm) spacing.

Q: Is the substitute part currently available?

A: Yes, the LB25SKW01-5F12-JF is in active production status with 946 pieces in current inventory, compared to the obsolete status of the original part.

Q: What is the electrical switching capacity of these switches?

A: Both parts are rated for 3A switching current at 125V AC or 30V DC with DPDT circuit configuration and momentary (On-Mom) switch function.