KB15SKW01B-5D-AB Equivalent & Substitute Parts

Part Overview

The KB15SKW01B-5D-AB is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with integrated LED illumination. This component is classified as obsolete, indicating discontinuation from the manufacturer. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this switch.

Substiute Parts

KB15SKW01B-5D-AB
NKK SwitchesIn Stock: 957KB15SKW01B-5D-AB Datasheet
KB15SKW01B-5D-AB
Current Part
YB15SKW01-5D-AB
NKK SwitchesIn Stock: 1121YB15SKW01-5D-AB Datasheet
YB15SKW01-5D-AB
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Key Parameters

Parameter Value
Manufacturer NKK Switches
Circuit Configuration SPDT
Switch Function On-Momentary
Current Rating 1A (AC/DC)
Voltage Rating - AC 125V
Voltage Rating - DC 30V
Illumination Type LED, Amber
Illumination Voltage 2 VDC
Mounting Type Panel Mount, Front
Actuator Type Square Button
Termination Style Solder Lug
Panel Cutout Diameter 12.30mm
Operating Temperature Range -25°C to 50°C
Mechanical Life 100,000 Cycles
Electrical Life 50,000 Cycles
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the KB15SKW01B-5D-AB is determined by the following critical parameters:

  • Circuit configuration (SPDT maintained)
  • Switch function (On-Momentary operation)
  • Voltage ratings (AC 125V, DC 30V minimum)
  • Illumination type and voltage (LED, Amber, 2 VDC)
  • Mounting interface (Panel Mount, Front)
  • Actuator type (Square Button)
  • Operating temperature range (-25°C to 50°C)
  • Environmental compliance (RoHS3, REACH Unaffected)

The YB15SKW01-5D-AB qualifies as a substitute part. While it exhibits higher current rating (3A versus 1A), increased mechanical life (1,000,000 versus 100,000 cycles), and larger panel cutout diameter (16.00mm versus 12.30mm), these represent performance enhancements rather than incompatibilities. The substitute maintains identical circuit configuration, switch function, voltage ratings, illumination specifications, operating temperature range, and compliance certifications. The increased current capacity and mechanical durability provide operational margin for the same electrical interface requirements.

Parameter Comparison

Parameter KB15SKW01B-5D-AB (Main) YB15SKW01-5D-AB (Substitute)
Manufacturer NKK Switches NKK Switches
Product Status Obsolete Active
Circuit Configuration SPDT SPDT
Switch Function On-Momentary On-Momentary
Current Rating (AC/DC) 1A 3A
Voltage Rating - AC 125V 125V
Voltage Rating - DC 30V 30V
Actuator Type Square Button Square Button
Actuator Color Black (White Window) Black (White Window)
Illumination Type LED, Amber LED, Amber
Illumination Voltage 2 VDC 2 VDC
Mounting Type Panel Mount, Front Panel Mount, Front
Panel Cutout Diameter 12.30mm 16.00mm
Operating Temperature -25°C to 50°C -25°C to 50°C
Mechanical Life 100,000 Cycles 1,000,000 Cycles
Electrical Life 50,000 Cycles 100,000 Cycles
RoHS Status ROHS3 Compliant ROHS3 Compliant
Termination Style Solder Lug Solder, Quick Connect - 0.110" (2.8mm)

Engineering Selection Recommendations

The YB15SKW01-5D-AB is an active product with current manufacturer support, addressing the obsolescence status of the KB15SKW01B-5D-AB. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying environmental regulatory requirements.

Selection of the YB15SKW01-5D-AB requires consideration of the following design factors:

Panel cutout diameter increases from 12.30mm to 16.00mm. Existing panel mounting holes designed for the KB15SKW01B-5D-AB require enlargement to accommodate the substitute component.

Termination style transitions from Solder Lug to Solder with Quick Connect options. Circuit board trace routing and connector interface design must be evaluated for compatibility with the 0.110" (2.8mm) quick connect terminals.

Current rating elevation from 1A to 3A and mechanical life increase from 100,000 to 1,000,000 cycles provide enhanced operational margins and extended component lifespan, supporting higher-reliability applications without electrical interface modification.

Frequently Asked Questions (FAQ)

Q: Can the YB15SKW01-5D-AB directly replace the KB15SKW01B-5D-AB without circuit modifications?

A: Electrical interface compatibility is maintained. The SPDT circuit configuration, voltage ratings (AC 125V, DC 30V), illumination specifications (LED, Amber, 2 VDC), and switch function (On-Momentary) are identical. However, termination style differs (Solder Lug versus Solder/Quick Connect), requiring circuit board trace evaluation and potential connector redesign.

Q: What is the impact of the larger panel cutout diameter on mechanical compatibility?

A: The YB15SKW01-5D-AB requires a 16.00mm diameter panel cutout compared to 12.30mm for the KB15SKW01B-5D-AB. Existing panel mounting holes must be enlarged. Verify that panel material thickness and surrounding component spacing accommodate the larger cutout without structural compromise.

Q: Does the increased current rating of the YB15SKW01-5D-AB affect circuit design?

A: The 3A current rating of the substitute exceeds the 1A specification of the original component. This represents a performance enhancement that does not require circuit modification. Existing current-limiting resistors and load impedances remain valid.

Q: Are both components compliant with environmental and regulatory standards?

A: Both the KB15SKW01B-5D-AB and YB15SKW01-5D-AB are ROHS3 compliant and REACH unaffected, satisfying current environmental regulatory requirements for electronic component manufacturing and use.

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

A: The YB15SKW01-5D-AB provides 1,000,000 mechanical cycles and 100,000 electrical cycles compared to 100,000 and 50,000 cycles respectively for the original component. Extended life ratings support applications requiring higher operational duty cycles and extended service intervals.

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