KB25CKG01-5F-JF Equivalent & Substitute Parts

Part Overview

The KB25CKG01-5F-JF is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with integrated LED illumination. This component is designed for panel-mount applications with front actuation and operates at 28V AC/DC with a 0.4VA current rating. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where this series is no longer available.

Substiute Parts

KB25CKG01-5F-JF

NKK SwitchesIn Stock: 955KB25CKG01-5F-JF Datasheet

Current PartRFQ

YB25CKG01-5F-JF

NKK SwitchesIn Stock: 1105YB25CKG01-5F-JF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB25CKG01-5F-JF is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must remain DPDT
• Voltage rating must support 28V AC and 28V DC operation
• Current rating must accommodate 0.4VA (AC/DC)
• Switch function must be On-Mom (momentary)
• Illumination type and color must be LED, Green

Mechanical Compatibility Requirements:

• Mounting type must be Panel Mount, Front
• Actuator type must be Round Button
• Operating temperature range must encompass -25°C to +50°C
• Termination style must be compatible with solder connection methods

Regulatory & Environmental Requirements:

• RoHS3 compliance required
• Moisture Sensitivity Level 1 (Unlimited)

The YB25CKG01-5F-JF meets all electrical and functional requirements for substitution. Differences in panel cutout diameter (16.00mm vs. 12.30mm), mechanical life rating (1,000,000 vs. 100,000 cycles), and termination style (Quick Connect vs. Solder Lug) represent design variations that may require mechanical panel modification and circuit board connection redesign.

Parameter Comparison

Engineering Selection Recommendations

The YB25CKG01-5F-JF is an active production equivalent suitable for replacing the obsolete KB25CKG01-5F-JF in applications requiring DPDT pushbutton switch functionality at 28V with LED illumination.

Substitution Feasibility: The YB25CKG01-5F-JF maintains electrical and functional parity with the original part across all critical parameters: DPDT circuit, 0.4VA current rating, 28V AC/DC voltage operation, On-Mom switch function, and LED green illumination. Both components share identical operating temperature ranges (-25°C to +50°C) and moisture sensitivity ratings (MSL 1).

Design Considerations: Panel cutout diameter differs between parts (12.30mm for KB25CKG01-5F-JF vs. 16.00mm for YB25CKG01-5F-JF), requiring mechanical panel modification for direct substitution. Termination style differs (Solder Lug vs. Quick Connect 0.110"), necessitating circuit board connection redesign. The YB series offers extended mechanical life (1,000,000 cycles vs. 100,000 cycles), providing improved durability in high-cycle applications.

Regulatory Compliance: Both components are classified under ECCN EAR99 and HTSUS 8536.50.9031. The KB25CKG01-5F-JF carries explicit ROHS3 compliance certification. RoHS compliance status for the YB25CKG01-5F-JF is not specified in available data.

Frequently Asked Questions (FAQ)

Q: Can the YB25CKG01-5F-JF be used as a direct drop-in replacement for the KB25CKG01-5F-JF?

A: Electrical and functional compatibility is confirmed. However, mechanical compatibility requires panel modification due to different cutout diameters (16.00mm vs. 12.30mm) and termination style changes (Quick Connect vs. Solder Lug). Direct board-level substitution without mechanical and electrical redesign is not possible.

Q: What are the key electrical parameters that must match for substitution?

A: Circuit configuration (DPDT), voltage rating (28V AC/DC), current rating (0.4VA), switch function (On-Mom), and illumination type (LED, Green) must remain identical. Both parts meet these requirements.

Q: Does the difference in illumination voltage (2.1V vs. 2.0V nominal) affect compatibility?

A: The 0.1V difference falls within typical LED operating tolerances and does not affect functional compatibility in standard 28V control circuits. Circuit design should accommodate the specified illumination voltage range for each part.

Q: What is the significance of the 10x difference in mechanical life ratings?

A: The YB25CKG01-5F-JF (1,000,000 cycles) provides extended mechanical durability compared to the KB25CKG01-5F-JF (100,000 cycles). This represents improved component longevity and may reduce maintenance requirements in high-cycle applications.

Q: Are there environmental or compliance differences between these parts?

A: Both components operate across -25°C to +50°C and carry MSL 1 (Unlimited) moisture sensitivity ratings. The KB25CKG01-5F-JF explicitly states ROHS3 compliance; RoHS status for the YB25CKG01-5F-JF is not specified in provided data and should be confirmed with the manufacturer.

Q: What modifications are required to implement the YB25CKG01-5F-JF as a substitute?

A: Panel cutout diameter must be enlarged from 12.30mm to 16.00mm. Termination connections must be redesigned to accommodate Quick Connect 0.110" (2.8mm) terminals instead of Solder Lug connections. Illumination voltage circuit should be adjusted for 2.0V nominal operation.