K5V1BU23P Equivalent & Substitute Parts

Part Overview

The K5V1BU23P is a tactile switch manufactured by C&K, featuring SPDT (Single Pole Double Throw) circuit configuration with 0.1A @ 32VDC contact rating. This component is a panel-mount, illuminated tactile switch with top actuation and blue LED illumination, designed for applications requiring tactile feedback and visual indication. The K5V1BU23P is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

K5V1BU23P

C&KIn Stock: 1005K5V1BU23P Datasheet

Current PartRFQ

K5V1BU43P

C&KIn Stock: 985K5V1BU43P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the K5V1BU23P is determined by strict alignment of the following critical parameters:

• Circuit configuration (SPDT)
• Switch function (On-Mom momentary operation)
• Contact rating (0.1A @ 32VDC)
• Mounting type (Panel Mount)
• Actuator orientation (Top Actuated)
• Illumination type (LED, Blue)
• Termination style (Solder Lug)
• Mechanical life (25,000 Cycles)
• Operating temperature range (-40°C ~ 85°C)
• Outline dimensions (9.70mm x 8.50mm)
• Ingress protection rating (IP40)

The K5V1BU43P qualifies as a substitute part within the K5V series, maintaining identical electrical specifications, mechanical configuration, and environmental ratings. Differences in operating force (400gf vs. 200gf) and product status (Active vs. Obsolete) do not preclude substitution when the application requirements permit the higher actuation force.

Parameter Comparison

Engineering Selection Recommendations

The K5V1BU43P is a direct functional substitute for the obsolete K5V1BU23P. Both components share identical electrical specifications, mechanical dimensions, and environmental operating parameters within the K5V series platform.

The K5V1BU43P offers the advantage of active product status, ensuring ongoing availability and manufacturing support. The component maintains full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

The primary distinction between the two parts is the operating force specification: the K5V1BU43P requires 400gf actuation force compared to the K5V1BU23P's 200gf. This parameter difference must be evaluated against application-specific user interface requirements and ergonomic considerations. If the original design specification requires 200gf actuation force, this difference constitutes a material change requiring design validation.

Both components are classified as MSL Level 1 (Unlimited moisture sensitivity), eliminating moisture-related handling constraints during assembly and storage.

Frequently Asked Questions (FAQ)

Q: Can K5V1BU43P directly replace K5V1BU23P in existing designs?

A: Electrical and mechanical compatibility is confirmed. The K5V1BU43P maintains identical circuit configuration (SPDT), contact rating (0.1A @ 32VDC), panel-mount configuration, and physical outline (9.70mm x 8.50mm). The higher operating force (400gf vs. 200gf) must be evaluated against application requirements before implementation.

Q: What is the significance of the operating force difference?

A: Operating force defines the mechanical pressure required to actuate the switch. The K5V1BU43P requires 400gf compared to the K5V1BU23P's 200gf. This affects user interface feel and may impact applications with force-sensitive actuation requirements or accessibility considerations.

Q: Are there compliance differences between these parts?

A: Both components are RoHS compliant. The K5V1BU43P carries ROHS3 certification while the K5V1BU23P carries standard RoHS certification. Both maintain REACH Unaffected status and identical MSL Level 1 classification.

Q: Why is the K5V1BU23P listed as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The K5V1BU43P's active status ensures continued manufacturing support and procurement availability.

Q: Are the solder lug terminations identical between both parts?

A: Yes. Both components use identical solder lug termination style, maintaining compatibility with existing PCB footprints and assembly processes.

Q: Do both parts support the same illumination specifications?

A: Yes. Both components feature identical LED blue illumination with translucent actuators and IP40 ingress protection rating.