KB25CKG01-FF Equivalent & Substitute Parts

Part Overview

The KB25CKG01-FF is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuit configuration with On-Momentary switch function. This component is rated for 0.4VA at 28V AC/DC with a green round button actuator and solder lug termination. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

KB25CKG01-FF

NKK SwitchesIn Stock: 1110KB25CKG01-FF Datasheet

Current PartRFQ

YB25CKW01-CB

NKK SwitchesIn Stock: 987YB25CKW01-CB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB25CKG01-FF is determined by the following critical parameters:

Circuit Configuration: Both the main part and substitute must maintain DPDT topology to preserve electrical functionality in dual-pole switching applications.

Switch Function: On-Momentary operation must be preserved to ensure correct behavioral characteristics in the application circuit.

Mounting Type: Panel Mount, Front configuration is required to maintain mechanical compatibility with existing panel cutouts and installation procedures.

Actuator Type: Round button actuator type ensures consistent user interface and operational feel.

Voltage and Current Ratings: The substitute must meet or exceed the voltage and current requirements of the original circuit. The KB25CKG01-FF operates at 0.4VA/28V; substitutes with higher ratings provide operational margin.

Termination Style: While the KB25CKG01-FF uses Solder Lug termination, substitutes with alternative termination methods (such as Quick Connect) are acceptable provided the electrical connection can be adapted to the existing circuit board or harness.

Panel Cutout Compatibility: The substitute YB25CKW01-CB requires a 16.00mm circular cutout versus the original 12.30mm, necessitating mechanical panel modification.

Parameter Comparison

Engineering Selection Recommendations

The YB25CKW01-CB serves as a functional substitute for the obsolete KB25CKG01-FF based on matching circuit topology (DPDT), switch function (On-Momentary), mounting configuration (Panel Mount, Front), and actuator type (Round Button).

Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

The YB25CKW01-CB provides enhanced electrical performance with 3A current capacity and 125V AC rating compared to the KB25CKG01-FF's 0.4VA/28V specification, offering operational margin in applications where the original part is no longer available.

The substitute exhibits superior mechanical durability with 1,000,000 cycle mechanical life versus 100,000 cycles in the original part.

Panel cutout modification is required: the YB25CKW01-CB necessitates a 16.00mm diameter circular opening compared to the original 12.30mm specification. Termination adaptation may be required due to the substitute's Quick Connect option in addition to solder capability.

Frequently Asked Questions (FAQ)

Q: Can the YB25CKW01-CB directly replace the KB25CKG01-FF without circuit modifications?

A: Electrical substitution is valid due to matching DPDT circuit configuration and On-Momentary function. The YB25CKW01-CB's higher voltage and current ratings are backward compatible with the original 0.4VA/28V application. However, mechanical panel modification is required to accommodate the larger 16.00mm cutout diameter.

Q: What are the key differences between these two switches?

A: Primary differences include product status (obsolete vs. active), current rating (0.4VA vs. 3A), voltage rating (28V vs. 125V AC), mechanical life (100,000 vs. 1,000,000 cycles), panel cutout size (12.30mm vs. 16.00mm), and termination options (Solder Lug vs. Solder/Quick Connect).

Q: Is the actuator color difference significant for substitution?

A: Actuator color (green vs. red with white filter) is a visual indicator and does not affect electrical functionality. Selection should be based on application requirements for user interface consistency.

Q: What termination considerations apply to the substitute part?

A: The KB25CKG01-FF uses Solder Lug termination exclusively. The YB25CKW01-CB offers both Solder and Quick Connect (0.110" / 2.8mm) termination options, providing flexibility for different circuit board or harness configurations.

Q: Are both parts suitable for the same operating temperature range?

A: Yes, both components operate across the identical temperature range of -25°C to 70°C, ensuring thermal compatibility in equivalent applications.

Q: What is the significance of the 1,000,000 cycle mechanical life in the substitute?

A: The YB25CKW01-CB's extended mechanical life (1,000,000 cycles vs. 100,000 cycles) indicates enhanced durability and longer service intervals, beneficial for high-frequency switching applications.