KB25CKW01-5D12-JB Equivalent & Substitute Parts

Part Overview

The KB25CKW01-5D12-JB is a DPDT pushbutton switch manufactured by NKK Switches, featuring illuminated panel mount design with LED amber indication at 12 VDC nominal. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs. The switch is rated for 1A at 125V AC and 30V DC, with a circular 12.30mm panel cutout and solder lug termination.

Substiute Parts

KB25CKW01-5D12-JB

NKK SwitchesIn Stock: 1180KB25CKW01-5D12-JB Datasheet

Current PartRFQ

YB25CKW01-5D12-JB

NKK SwitchesIn Stock: 732YB25CKW01-5D12-JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KB25CKW01-5D12-JB is determined by the following critical parameters:

• Circuit Configuration: Must be DPDT to maintain electrical functionality
• Switch Function: Must be On-Mom (momentary) operation
• Illumination: Must support LED amber at 12 VDC nominal
• Mounting: Must be panel mount, front-facing design
• Actuator: Must be round button type
• Voltage Ratings: AC rating must meet or exceed 125V; DC rating must meet or exceed 30V
• Current Rating: Must support minimum 1A at rated voltages
• Operating Temperature: Must cover -25°C to 50°C range
• Compliance: Must maintain ROHS3 compliance

The YB25CKW01-5D12-JB meets all substitution criteria while offering enhanced electrical and mechanical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The YB25CKW01-5D12-JB is a direct functional substitute for the obsolete KB25CKW01-5D12-JB. Both components share identical circuit configuration (DPDT), switch function (On-Mom), voltage ratings (125V AC / 30V DC), illumination specification (LED amber at 12 VDC), and operating temperature range (-25°C to 50°C).

The YB series component offers superior performance with 3A current rating versus 1A, extended mechanical life (1,000,000 cycles versus 100,000 cycles), and doubled electrical life (100,000 cycles versus 50,000 cycles). The YB25CKW01-5D12-JB maintains active product status, ensuring long-term availability and supply chain continuity.

Panel cutout diameter increases from 12.30mm to 16.00mm, requiring mechanical redesign of panel mounting interfaces. Termination options expand to include quick connect capability in addition to solder connection, providing installation flexibility.

Frequently Asked Questions (FAQ)

Q: Can the YB25CKW01-5D12-JB directly replace the KB25CKW01-5D12-JB without circuit modification?

A: Yes, electrical substitution is direct. Both components are DPDT switches with identical voltage ratings, current capacity exceeding application requirements, and matching illumination specifications. No circuit redesign is necessary.

Q: What is the impact of the panel cutout diameter change from 12.30mm to 16.00mm?

A: The larger cutout diameter of the YB series requires mechanical modification to the panel mounting interface. Existing panel cutouts sized for 12.30mm will not accommodate the 16.00mm diameter of the substitute component. Panel redesign or adapter solutions are necessary for physical installation.

Q: Are the termination style differences significant for substitution?

A: The KB series uses solder lug termination exclusively, while the YB series offers both solder and quick connect options. Existing wiring harnesses designed for solder lug connection require modification or replacement to utilize the quick connect feature. Solder connection remains compatible if harness redesign is not feasible.

Q: Does the increased current rating of the YB series affect circuit compatibility?

A: No. The YB series 3A rating exceeds the KB series 1A rating, providing additional margin for circuit protection and component longevity. Applications designed for 1A operation remain fully compatible with the higher-rated substitute component.

Q: What is the significance of the extended mechanical and electrical life ratings?

A: The YB series demonstrates superior durability with 10x mechanical life (1,000,000 versus 100,000 cycles) and 2x electrical life (100,000 versus 50,000 cycles). This extended operational life reduces maintenance frequency and improves system reliability in high-cycle applications.

Q: Is RoHS3 compliance maintained with the YB25CKW01-5D12-JB substitute?

A: RoHS3 compliance status is not specified in the YB series data provided. Verification with the manufacturer is recommended for applications requiring documented RoHS3 certification.