KB26KKW01 Equivalent & Substitute Parts

Part Overview

The KB26KKW01 is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with On-On switching function. This component is rated for 1A at 125V AC and 30V DC, designed for panel mount snap-in installation with solder lug termination. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and component sourcing in legacy applications.

Substiute Parts

KB26KKW01

NKK SwitchesIn Stock: 743KB26KKW01 Datasheet

Current PartRFQ

YB26KKW01

NKK SwitchesIn Stock: 1003YB26KKW01 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB26KKW01 is determined by the following critical parameters:

Circuit Configuration & Function: The substitute part must maintain DPDT circuitry with On-On switching function to preserve electrical behavior in the target application.

Voltage Ratings: The substitute must meet or exceed the AC voltage rating of 125V and DC voltage rating of 30V to ensure safe operation across specified electrical conditions.

Current Rating: The substitute current rating must equal or exceed the 1A requirement. Higher current ratings provide operational margin and are acceptable for direct substitution.

Mounting & Mechanical Compatibility: Panel mount snap-in installation type must be maintained. Physical panel cutout dimensions determine mechanical fit; larger cutout diameters may require panel modification.

Termination Style: While the KB26KKW01 uses solder lug termination, substitutes with alternative termination styles (such as quick connect) may be acceptable if circuit board or wiring harness modifications are performed.

Environmental & Lifecycle Parameters: Operating temperature range, mechanical life, and electrical life specifications must be evaluated against application requirements. Substitutes with equal or superior lifecycle ratings are preferred.

Compliance & Regulatory Status: RoHS3 compliance and REACH unaffected status must be maintained for regulatory adherence.

Parameter Comparison

Engineering Selection Recommendations

The YB26KKW01 qualifies as a direct substitute for the KB26KKW01 based on electrical equivalence and regulatory compliance. Both components are manufactured by NKK Switches, maintain identical DPDT On-On circuit configuration, and share the same voltage ratings (125V AC / 30V DC). The YB26KKW01 provides superior performance characteristics with 3A current rating (versus 1A), doubled mechanical life (200,000 cycles), and doubled electrical life (100,000 cycles).

The primary consideration for substitution is mechanical compatibility. The YB26KKW01 requires a 16.00mm diameter panel cutout compared to the KB26KKW01's 12.30mm diameter. Panel modification is necessary if the existing cutout cannot accommodate the larger diameter. Additionally, the YB26KKW01 offers dual termination options (solder and quick connect 0.110"), whereas the KB26KKW01 uses solder lug only. Circuit board or wiring harness modifications may be required to accommodate the alternative termination style.

Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system repairs.

Frequently Asked Questions (FAQ)

Q: Can the YB26KKW01 directly replace the KB26KKW01 without any modifications?

A: Electrical substitution is direct. However, mechanical compatibility requires evaluation. The larger 16.00mm panel cutout diameter necessitates panel modification if the existing opening is sized for the KB26KKW01's 12.30mm diameter. Termination style differences (solder lug versus solder/quick connect) may require circuit board or wiring harness adaptation.

Q: What are the key electrical differences between these two parts?

A: Both maintain identical DPDT On-On circuit configuration and voltage ratings (125V AC / 30V DC). The YB26KKW01 provides higher current capacity (3A versus 1A), offering operational margin for applications approaching the 1A limit of the KB26KKW01.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the KB26KKW01 and YB26KKW01 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: Why does the YB26KKW01 have superior lifecycle ratings?

A: The YB26KKW01 is an active product with enhanced mechanical (200,000 cycles) and electrical (100,000 cycles) life specifications compared to the obsolete KB26KKW01 (100,000 and 50,000 cycles respectively). These improvements reflect current manufacturing standards and design optimization.

Q: What should be considered when selecting between these parts for a new design?

A: For new designs, the YB26KKW01 is the preferred choice due to active product status, superior lifecycle ratings, and higher current capacity. The KB26KKW01 should be selected only for legacy system repairs where mechanical constraints (panel cutout size) or termination compatibility require the original specification.

Q: Are there any packaging or inventory considerations?

A: Both components are available in bulk packaging. Verify current inventory status with your supplier, as the KB26KKW01 is obsolete and availability may be limited compared to the active YB26KKW01.