KB25SKW01 Equivalent & Substitute Parts

Part Overview

The KB25SKW01 is a pushbutton switch with DPDT (Double Pole Double Throw) circuit configuration, rated for 1A at 125V AC and 30V DC. Manufactured by NKK Switches, this component features a standard panel mount design with plunger actuator and solder lug termination. The product is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and design continuity in applications requiring equivalent switching functionality.

Substiute Parts

KB25SKW01

NKK SwitchesIn Stock: 1063KB25SKW01 Datasheet

Current PartRFQ

YB25SKW01

NKK SwitchesIn Stock: 827YB25SKW01 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KB25SKW01 is determined by the following critical parameters:

• Circuit configuration must remain DPDT
• Switch function must be On-Mom (momentary operation)
• Voltage ratings must meet or exceed the original specification (125V AC minimum, 30V DC minimum)
• Current rating must support the application load (minimum 1A AC/DC)
• Mounting type must be Panel Mount, Front
• Actuator type must be Plunger for Cap
• Operating temperature range must encompass -25°C ~ 70°C
• RoHS3 compliance must be maintained

The YB25SKW01 qualifies as a substitute based on these parameters. While it exhibits higher current capacity (3A), increased mechanical and electrical life ratings, and a larger panel cutout dimension (16.00mm), these represent enhanced capabilities that do not preclude substitution in applications designed for the KB25SKW01.

Parameter Comparison

Engineering Selection Recommendations

The YB25SKW01 is an active product from NKK Switches and serves as the direct substitute for the obsolete KB25SKW01. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system replacements.

The YB25SKW01 provides enhanced performance characteristics including higher current capacity (3A versus 1A), extended mechanical life (1,000,000 cycles versus 100,000 cycles), and doubled electrical life (100,000 cycles versus 50,000 cycles). These improvements do not compromise compatibility with applications originally specified for the KB25SKW01, as the substitute meets or exceeds all critical electrical and mechanical parameters.

Panel cutout dimension modification from 12.30mm to 16.00mm requires mechanical panel redesign. Termination style differences (solder lug on KB25SKW01 versus solder and quick connect on YB25SKW01) necessitate circuit board layout adjustment. These mechanical and electrical interface changes must be evaluated within the context of the target application.

Frequently Asked Questions (FAQ)

Q: Can the YB25SKW01 directly replace the KB25SKW01 without any modifications?

A: Electrical substitution is valid. However, the larger panel cutout dimension (16.00mm versus 12.30mm) and different termination style require mechanical panel redesign and circuit board layout modification.

Q: What is the significance of the higher current rating on the YB25SKW01?

A: The YB25SKW01 is rated for 3A compared to the KB25SKW01's 1A rating. This represents enhanced current-handling capability and does not restrict use in applications requiring lower current. The substitute remains compatible with 1A load specifications.

Q: Are there compliance differences between these parts?

A: Both components are ROHS3 compliant and REACH unaffected. Regulatory compliance is maintained across the substitution.

Q: Why is the mechanical life rating significantly higher on the YB25SKW01?

A: The YB25SKW01 demonstrates 1,000,000 mechanical cycles versus 100,000 cycles on the KB25SKW01. This extended life reflects improved component design and manufacturing in the active product line.

Q: What packaging considerations apply to these parts?

A: The KB25SKW01 is supplied in Tray packaging with 1015 pieces in stock. The YB25SKW01 is supplied in Bulk packaging with 760 pieces in stock. Packaging format may influence procurement and handling procedures.

Q: Are the operating temperature ranges identical?

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