KB16SKW01-05-FF Equivalent & Substitute Parts

Part Overview

The KB16SKW01-05-FF is an illuminated pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with a 1A current rating at 125V AC. This component is designed for panel-mount applications with front-facing installation and green incandescent illumination. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications where continued functionality is required.

Substiute Parts

KB16SKW01-05-FF
NKK SwitchesIn Stock: 982KB16SKW01-05-FF Datasheet
KB16SKW01-05-FF
Current Part
YB16SKW01-5F05-JF
NKK SwitchesIn Stock: 1268YB16SKW01-5F05-JF Datasheet
YB16SKW01-5F05-JF
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Key Parameters

Parameter Value
Manufacturer Part Number KB16SKW01-05-FF
Manufacturer NKK Switches
Series KB
Product Status Obsolete
Circuit Configuration SPDT
Switch Function On-On
Current Rating 1A (AC/DC)
Voltage Rating - AC 125V
Voltage Rating - DC 30V
Mounting Type Panel Mount, Front
Actuator Type Square, Button
Illumination Type Incandescent, Green
Illumination Voltage 5 VAC
Panel Cutout Diameter 12.30mm
Termination Style Solder Lug
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 of the KB16SKW01-05-FF is determined by strict alignment of electrical and mechanical parameters. The primary substitute identified is the YB16SKW01-5F05-JF, also manufactured by NKK Switches. This substitution is valid based on the following criteria:

Electrical Compatibility Parameters:

  • Circuit configuration: Both parts maintain SPDT topology
  • Switch function: Both operate as On-On switches
  • Voltage ratings: Both support 125V AC and 30V DC operation
  • Operating temperature range: Identical -25°C to 50°C specification

Mechanical Compatibility Parameters:

  • Mounting type: Both are panel-mount, front-facing designs
  • Actuator type: Both feature square button actuators
  • Illumination color: Both provide green illumination
  • Termination compatibility: Both support electrical connection methods suitable for panel-mount applications

Key Differences Requiring Design Consideration:

  • Current rating: YB16SKW01-5F05-JF is rated for 3A versus 1A for KB16SKW01-05-FF
  • Panel cutout diameter: YB16SKW01-5F05-JF requires 16.00mm versus 12.30mm for the original
  • Illumination technology: YB16SKW01-5F05-JF uses LED with 5 VDC versus incandescent with 5 VAC
  • Termination style: YB16SKW01-5F05-JF offers Solder and Quick Connect options versus Solder Lug only
  • Mechanical life: YB16SKW01-5F05-JF rated for 200,000 cycles versus 100,000 cycles
  • Electrical life: YB16SKW01-5F05-JF rated for 100,000 cycles versus 50,000 cycles

Parameter Comparison

Parameter KB16SKW01-05-FF (Main Part) YB16SKW01-5F05-JF (Substitute)
Manufacturer NKK Switches NKK Switches
Series KB YB
Product Status Obsolete Active
Circuit Configuration SPDT SPDT
Switch Function On-On On-On
Current Rating 1A (AC/DC) 3A (AC/DC)
Voltage Rating - AC 125V 125V
Voltage Rating - DC 30V 30V
Mounting Type Panel Mount, Front Panel Mount, Front
Actuator Type Square, Button Square, Button
Illumination Type, Color Incandescent, Green LED, Green
Illumination Voltage 5 VAC 5 VDC
Panel Cutout Diameter 12.30mm 16.00mm
Termination Style Solder Lug Solder, Quick Connect - 0.110" (2.8mm)
Operating Temperature Range -25°C to 50°C -25°C to 50°C
Mechanical Life 100,000 Cycles 200,000 Cycles
Electrical Life 50,000 Cycles 100,000 Cycles
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

The YB16SKW01-5F05-JF is an active product substitute for the obsolete KB16SKW01-05-FF. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system replacements.

Selection of the YB16SKW01-5F05-JF requires design verification in the following areas:

Panel Integration: The substitute requires a 16.00mm panel cutout diameter compared to the original 12.30mm specification. Existing panel designs must accommodate this larger opening, or mechanical adaptation is necessary.

Illumination Circuit: The substitute operates on 5 VDC LED illumination versus the original 5 VAC incandescent design. Illumination power supply circuits must be verified for DC compatibility and LED current-limiting requirements.

Termination Compatibility: The substitute offers Solder and Quick Connect termination options versus the original Solder Lug configuration. Wiring harness and PCB connection methods must be evaluated for compatibility with the available termination styles.

Current Capacity: The substitute is rated for 3A operation, providing increased current handling capability compared to the original 1A rating. This represents an improvement in electrical capacity and does not restrict substitution in applications requiring 1A or less.

Operational Life: The substitute provides extended mechanical life (200,000 cycles) and electrical life (100,000 cycles) compared to the original specifications, representing improved reliability for long-term applications.

Frequently Asked Questions (FAQ)

Q: Can the YB16SKW01-5F05-JF directly replace the KB16SKW01-05-FF without design modifications?

A: Direct mechanical replacement is not possible without panel modification. The substitute requires a 16.00mm cutout diameter versus the original 12.30mm. Additionally, illumination power supply circuits must be adapted from 5 VAC incandescent to 5 VDC LED operation. Termination style differences must also be addressed in wiring harness design.

Q: Are the electrical ratings compatible between these two parts?

A: Yes, electrical ratings are compatible. Both parts support 125V AC and 30V DC operation with SPDT On-On switching function. The substitute's 3A current rating exceeds the original 1A specification, making it suitable for applications requiring 1A or less. Operating temperature ranges are identical at -25°C to 50°C.

Q: What is the impact of switching from incandescent to LED illumination?

A: LED illumination in the substitute offers improved energy efficiency and extended operational life compared to incandescent technology. However, the illumination voltage changes from 5 VAC to 5 VDC, requiring circuit redesign. LED illumination circuits typically require current-limiting resistors or dedicated LED drivers, whereas incandescent designs operate directly from AC voltage sources.

Q: Does the larger panel cutout diameter affect functional performance?

A: Panel cutout diameter is a mechanical specification that affects physical installation only. The larger 16.00mm cutout in the substitute does not impact electrical function or performance. Panel redesign or mechanical adaptation is required to accommodate the larger opening.

Q: Are both parts compliant with current regulatory standards?

A: Yes, both the KB16SKW01-05-FF and YB16SKW01-5F05-JF are ROHS3 compliant and REACH unaffected. The substitute, being an active product, maintains current regulatory compliance for new designs and system replacements.

Q: What are the termination differences, and how do they affect installation?

A: The original part uses Solder Lug termination exclusively. The substitute offers Solder and Quick Connect (0.110" / 2.8mm) termination options. Quick Connect termination allows for tool-free connection to standard spade terminals, while Solder termination requires traditional soldering methods. Wiring harness design must be adapted to match the selected termination style.

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