KB15SKW01B-5F12-JB Equivalent & Substitute Parts

Part Overview

The KB15SKW01B-5F12-JB is a miniature illuminated pushbutton switch manufactured by NKK Switches, configured as a Standard SPDT (Single Pole Double Throw) panel mount component with front actuation. The switch features LED green illumination at 12 VDC nominal voltage, a square button actuator with clear white filter/diffuser, and solder lug termination. With a 1A current rating at 125V AC / 30V DC and mechanical life of 100,000 cycles, this component is classified as obsolete. Due to its obsolete status and limited remaining inventory, identifying equivalent substitute parts is necessary for ongoing system maintenance and new design implementations.

Substiute Parts

KB15SKW01B-5F12-JB
NKK SwitchesIn Stock: 906KB15SKW01B-5F12-JB Datasheet
KB15SKW01B-5F12-JB
Current Part
YB15SKW01-5F12-JB
NKK SwitchesIn Stock: 925YB15SKW01-5F12-JB Datasheet
YB15SKW01-5F12-JB
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Key Parameters

Parameter Value
Manufacturer NKK Switches
Circuit Configuration SPDT
Switch Type Standard, Illuminated
Switch Function On-Momentary
Current Rating 1A (AC/DC)
Voltage Rating - AC 125 V
Voltage Rating - DC 30 V
Illumination Type LED, Green
Illumination Voltage 12 VDC
Mounting Type Panel Mount, Front
Actuator Type Square, Button
Operating Temperature Range -25°C ~ 50°C
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the KB15SKW01B-5F12-JB is determined by the following critical parameters:

Mandatory Matching Parameters:

  • Circuit configuration: SPDT
  • Switch type: Standard, Illuminated
  • Switch function: On-Momentary
  • Illumination type and color: LED, Green
  • Illumination voltage: 12 VDC nominal
  • Mounting type: Panel Mount, Front
  • Actuator type: Square, Button
  • Operating temperature range: -25°C ~ 50°C
  • RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

  • Current rating: Equal to or greater than 1A
  • Voltage rating (AC/DC): Equal to or greater than specified values
  • Mechanical and electrical life: Equal to or greater than specified cycles
  • Termination style: Functionally equivalent connection methods
  • Panel cutout dimensions: Mechanical accommodation within system constraints

The substitute part YB15SKW01-5F12-JB meets all mandatory matching parameters while providing enhanced electrical performance characteristics.

Parameter Comparison

Parameter KB15SKW01B-5F12-JB (Main) YB15SKW01-5F12-JB (Substitute)
Manufacturer NKK Switches NKK Switches
Series KB YB
Product Status Obsolete Active
Circuit Configuration SPDT SPDT
Switch Type Standard, Illuminated Standard, Illuminated
Switch Function On-Momentary On-Momentary
Current Rating (Amps) 1A (AC/DC) 3A (AC/DC)
Voltage Rating - AC 125 V 125 V
Voltage Rating - DC 30 V 30 V
Actuator Type Square, Button Square, Button
Actuator Marking No Marking No Marking
Color - Actuator/Cap Clear (White Filter/Diffuser) Clear (White Filter/Diffuser)
Illumination Type, Color LED, Green LED, Green
Illumination Voltage (Nominal) 12 VDC 12 VDC
Mounting Type Panel Mount, Front Panel Mount, Front
Operating Temperature -25°C ~ 50°C -25°C ~ 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
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
ECCN EAR99 EAR99
HTSUS 8536.50.9031 8536.50.9031

Engineering Selection Recommendations

The YB15SKW01-5F12-JB is a direct substitute for the KB15SKW01B-5F12-JB based on the following engineering criteria:

Product Status Advantage: The substitute part maintains Active product status, ensuring long-term availability and continued manufacturer support, whereas the main part is classified as Obsolete.

Compliance Certification: Both parts maintain ROHS3 compliance and identical ECCN/HTSUS classifications, confirming regulatory equivalence for procurement and deployment.

Enhanced Performance Characteristics: The substitute part provides superior electrical and mechanical performance with 3A current rating (versus 1A), 1,000,000 mechanical cycles (versus 100,000), and 100,000 electrical cycles (versus 50,000). These enhancements provide increased operational margin without compromising functional compatibility.

Functional Equivalence: All critical functional parameters remain identical: SPDT circuit, On-Momentary operation, LED green illumination at 12 VDC, square button actuator, and panel mount front configuration.

Termination Consideration: The substitute part offers both Solder and Quick Connect termination options, providing installation flexibility compared to the main part's solder lug termination.

Frequently Asked Questions (FAQ)

Q: Can YB15SKW01-5F12-JB directly replace KB15SKW01B-5F12-JB in existing applications?

A: Yes. Both parts share identical circuit configuration (SPDT), switch function (On-Momentary), illumination specifications (LED green at 12 VDC), mounting type (Panel Mount, Front), and operating temperature range (-25°C ~ 50°C). The substitute part's higher current rating and extended mechanical/electrical life provide enhanced performance without functional incompatibility.

Q: What are the key differences between these parts?

A: The primary differences are product status (Obsolete versus Active), current rating (1A versus 3A), mechanical life (100,000 versus 1,000,000 cycles), electrical life (50,000 versus 100,000 cycles), panel cutout diameter (12.30mm versus 16.00mm), and termination options (Solder Lug versus Solder/Quick Connect). All functional and electrical parameters remain equivalent.

Q: Does the panel cutout dimension difference affect substitution?

A: The substitute part requires a 16.00mm circular panel cutout compared to the main part's 12.30mm diameter. Physical panel modification may be necessary for mechanical accommodation. Verify panel dimensions before implementation.

Q: Are both parts RoHS compliant?

A: Yes. Both KB15SKW01B-5F12-JB and YB15SKW01-5F12-JB are ROHS3 compliant with identical Moisture Sensitivity Level (MSL 1 - Unlimited) and export classification (EAR99).

Q: Which termination style should be selected for new designs?

A: The substitute part's Quick Connect 0.110" (2.8mm) termination option provides installation efficiency for new designs, while Solder termination maintains compatibility with existing solder lug connections. Selection depends on assembly process requirements.

Q: Is the substitute part suitable for high-cycle applications?

A: Yes. The YB15SKW01-5F12-JB mechanical life rating of 1,000,000 cycles supports extended-duty applications, providing a tenfold improvement over the main part's 100,000-cycle specification.

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