KB25SKW01-5C-AB Equivalent & Substitute Parts

Part Overview

The KB25SKW01-5C-AB is a pushbutton switch manufactured by NKK Switches, configured as a DPDT (Double Pole Double Throw) illuminated panel mount component with LED indication. This part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The switch is rated for 1A at 125V AC and 30V DC, with a mechanical life of 100,000 cycles and electrical life of 50,000 cycles.

Substiute Parts

KB25SKW01-5C-AB

NKK SwitchesIn Stock: 1186KB25SKW01-5C-AB Datasheet

Current PartRFQ

YB25SKW01-5C-AB

NKK SwitchesIn Stock: 723YB25SKW01-5C-AB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB25SKW01-5C-AB is determined by the following critical parameters:

• Circuit Configuration: Must be DPDT to maintain electrical functionality
• Switch Function: Must be On-Mom (momentary) operation
• Voltage Ratings: Must support minimum 125V AC and 30V DC
• Mounting Type: Must be Panel Mount, Front configuration
• Illumination: Must feature LED illumination at 1.9 VDC nominal
• Actuator Type: Must be Square, Button configuration
• Operating Temperature: Must support -25°C to 50°C range
• Regulatory Compliance: Must maintain ROHS3 compliance

The YB25SKW01-5C-AB meets all substitution criteria. While it exhibits enhanced electrical and mechanical performance characteristics (3A current rating, 1,000,000 mechanical cycles, 100,000 electrical cycles), these represent improvements over the original specification and do not compromise compatibility. The substitute part maintains identical voltage ratings, circuit topology, illumination specifications, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The YB25SKW01-5C-AB is the qualified substitute for the obsolete KB25SKW01-5C-AB. Selection of the substitute part is supported by the following factors:

Product Status: The KB25SKW01-5C-AB is classified as obsolete, making the active-status YB25SKW01-5C-AB the appropriate alternative for new procurement and design continuity.

Regulatory Compliance: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent environmental and regulatory performance.

Electrical Equivalence: Identical voltage ratings (125V AC, 30V DC), circuit configuration (DPDT), and illumination specifications (LED, Red, 1.9 VDC) ensure functional compatibility in existing circuit designs.

Performance Enhancement: The substitute part provides superior mechanical and electrical life ratings, representing a performance upgrade without introducing compatibility risk.

Termination Consideration: The substitute part offers dual termination options (Solder and Quick Connect), providing installation flexibility not present in the original part.

Panel Cutout Modification: The substitute part requires a larger panel cutout diameter (16.00mm versus 12.30mm). Panel modifications or adapter solutions may be necessary for direct mechanical replacement in existing enclosures.

Frequently Asked Questions (FAQ)

Q: Can the YB25SKW01-5C-AB be used as a direct replacement for the KB25SKW01-5C-AB?

A: The YB25SKW01-5C-AB is electrically and functionally equivalent. However, the larger panel cutout diameter (16.00mm versus 12.30mm) requires mechanical accommodation. Existing panel openings must be enlarged or adapter solutions implemented.

Q: What are the key differences between these parts?

A: The primary differences are product status (obsolete versus active), current rating (1A versus 3A), mechanical life (100,000 versus 1,000,000 cycles), electrical life (50,000 versus 100,000 cycles), termination options, and panel cutout diameter. All critical electrical parameters remain identical.

Q: Are the voltage and illumination specifications identical?

A: Yes. Both parts operate at 125V AC and 30V DC with identical LED illumination at 1.9 VDC nominal. Operating temperature ranges and regulatory compliance are also identical.

Q: Does the higher current rating of the substitute part affect circuit design?

A: No. The 3A rating of the YB25SKW01-5C-AB exceeds the 1A requirement of the original design, providing additional margin. Existing circuit designs require no modification.

Q: What termination options are available?

A: The KB25SKW01-5C-AB uses Solder Lug termination. The YB25SKW01-5C-AB offers both Solder and Quick Connect (0.110" / 2.8mm) termination, providing installation flexibility.

Q: Is panel modification required for mechanical replacement?

A: Yes. The substitute part requires a 16.00mm diameter circular cutout compared to the original 12.30mm diameter. Panel drilling or enlargement is necessary for installation.