KB25CKW01-CC Equivalent & Substitute Parts

Part Overview

The KB25CKW01-CC is a pushbutton switch manufactured by NKK Switches, featuring DPDT (Double Pole Double Throw) circuitry with On-Momentary switch function. This component is rated for 1A at 125V AC and 30V DC, with a red round button actuator and solder lug termination. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and new design applications where equivalent functionality is required.

Substiute Parts

KB25CKW01-CC
NKK SwitchesIn Stock: 967KB25CKW01-CC Datasheet
KB25CKW01-CC
Current Part
YB25CKW01-CB
NKK SwitchesIn Stock: 987YB25CKW01-CB Datasheet
YB25CKW01-CB
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Key Parameters

Parameter Value
Manufacturer Part Number KB25CKW01-CC
Manufacturer NKK Switches
Series KB
Product Status Obsolete
Circuit Configuration DPDT
Switch Function On-Mom (On-Momentary)
Current Rating 1A (AC/DC)
Voltage Rating - AC 125V
Voltage Rating - DC 30V
Mounting Type Panel Mount, Front
Actuator Type Round, Button
Actuator Color Red
Termination Style Solder Lug
Panel Cutout Diameter 12.30mm
Operating Temperature Range -25°C to 70°C
Mechanical Life 100,000 Cycles
Electrical Life 50,000 Cycles
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the KB25CKW01-CC is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

  • Circuit configuration (DPDT)
  • Switch function (On-Momentary)
  • Voltage ratings (125V AC minimum, 30V DC minimum)
  • Mounting type (Panel Mount, Front)
  • Actuator type (Round, Button)
  • Operating temperature range (-25°C to 70°C minimum)
  • RoHS compliance status

Allowable Variations:

  • Current rating may exceed the original specification (higher current rating is acceptable for lower-current applications)
  • Mechanical and electrical life ratings may exceed original specifications
  • Termination style may differ if mechanical and electrical compatibility is maintained
  • Panel cutout diameter may vary within mechanical design constraints
  • Actuator color variations are acceptable if functional requirements are met

The YB25CKW01-CB meets all mandatory matching parameters while exceeding performance specifications in current rating (3A vs. 1A), mechanical life (1,000,000 vs. 100,000 cycles), and electrical life (100,000 vs. 50,000 cycles).

Parameter Comparison

Parameter KB25CKW01-CC (Main Part) YB25CKW01-CB (Substitute)
Manufacturer NKK Switches NKK Switches
Circuit Configuration DPDT DPDT
Switch Function On-Mom On-Mom
Current Rating (AC/DC) 1A 3A
Voltage Rating - AC 125V 125V
Voltage Rating - DC 30V 30V
Mounting Type Panel Mount, Front Panel Mount, Front
Actuator Type Round, Button Round, Button
Actuator Color Red Red (White Filter/Diffuser)
Termination Style Solder Lug Solder, Quick Connect - 0.110" (2.8mm)
Panel Cutout Diameter 12.30mm 16.00mm
Operating Temperature Range -25°C to 70°C -25°C to 70°C
Mechanical Life 100,000 Cycles 1,000,000 Cycles
Electrical Life 50,000 Cycles 100,000 Cycles
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

The YB25CKW01-CB is a direct functional substitute for the KB25CKW01-CC. Both components are manufactured by NKK Switches and maintain identical ROHS3 compliance and moisture sensitivity ratings. The substitute part exceeds the original specifications in current handling capacity, mechanical durability, and electrical life, making it suitable for applications requiring the KB25CKW01-CC.

Design considerations for implementation:

Panel Cutout Modification: The YB25CKW01-CB requires a 16.00mm diameter panel cutout compared to the 12.30mm diameter of the original part. Mechanical redesign of the mounting panel is necessary.

Termination Compatibility: The substitute part offers both solder and quick connect termination options (0.110" / 2.8mm), whereas the original uses solder lug only. Circuit board layout and wiring harness modifications may be required.

Product Status: The KB25CKW01-CC is obsolete; the YB25CKW01-CB is active production, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the YB25CKW01-CB directly replace the KB25CKW01-CC without circuit modifications?

A: Electrical functionality is compatible. The DPDT circuit configuration, On-Momentary switch function, and voltage/current ratings ensure electrical interchangeability. Mechanical modifications to the panel cutout (12.30mm to 16.00mm diameter) and termination connections are required.

Q: What is the significance of the higher current rating (3A vs. 1A) on the substitute part?

A: The YB25CKW01-CB is rated for 3A, exceeding the original 1A specification. This higher rating does not affect compatibility with circuits designed for 1A operation. The substitute part is suitable for applications requiring up to 3A switching capacity.

Q: Are there differences in mechanical durability between these parts?

A: The YB25CKW01-CB provides 1,000,000 mechanical cycles compared to 100,000 cycles for the KB25CKW01-CC, and 100,000 electrical cycles versus 50,000 cycles. These enhanced specifications indicate improved long-term reliability and extended service life.

Q: Does the panel cutout diameter difference affect electrical performance?

A: Panel cutout diameter is a mechanical specification only and does not affect electrical performance. The larger 16.00mm cutout on the YB25CKW01-CB requires physical panel modification but maintains full electrical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the KB25CKW01-CC and YB25CKW01-CB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What packaging options are available for the substitute part?

A: The YB25CKW01-CB is supplied in bulk packaging, whereas the original KB25CKW01-CC was supplied with standard packaging. Confirm packaging requirements with your procurement specifications.

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