EVQ-PPBA25 Equivalent & Substitute Parts

Part Overview

The EVQ-PPBA25 is a tactile switch manufactured by Panasonic Electronic Components, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device rated for 0.05A at 12VDC. This surface mount switch features top actuation with a 2.50mm actuator height and is designed for applications requiring momentary contact switching with dust proof ingress protection.

The EVQ-PPBA25 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

EVQ-PPBA25

Panasonic Electronic ComponentsIn Stock: 954EVQ-PPBA25 Datasheet

Current PartRFQ

KSR211GLFS

C&KIn Stock: 9803KSR211GLFS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EVQ-PPBA25 is determined by strict alignment of the following critical parameters:

Circuit Configuration & Function: Both the main part and substitute must maintain SPST-NO circuit topology with Off-Mom (momentary) switching function to preserve electrical behavior in the application.

Contact Rating: The substitute must support the required voltage and current specifications. The EVQ-PPBA25 operates at 0.05A @ 12VDC. A substitute rated for higher voltage (such as 32VDC) remains compatible, as it can safely handle the lower voltage requirement of the original application.

Mechanical Compatibility: Surface mount mounting type, top actuator orientation, 2.50mm actuator height, and 0.25mm switch travel must be maintained to ensure PCB layout compatibility and user interface consistency.

Environmental Specifications: Operating temperature range (-40°C ~ 85°C) and moisture sensitivity level (MSL 1) must be preserved to ensure reliability across the intended operating environment.

Ingress Protection: The substitute must provide equivalent or superior environmental sealing. The EVQ-PPBA25 specifies Dust Proof protection; the substitute KSR211GLFS provides IP50 (Dust Protected), which meets or exceeds this requirement.

The KSR211GLFS from C&K satisfies all substitution criteria while offering enhanced mechanical life (100,000 cycles vs. 50,000 cycles) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The KSR211GLFS is a direct functional substitute for the obsolete EVQ-PPBA25. Both components share identical circuit topology, switching function, actuator geometry, and environmental operating range. The KSR211GLFS offers the advantage of active product status, ensuring ongoing availability and supply chain support.

The KSR211GLFS is rated for 32VDC, which exceeds the 12VDC requirement of the original application, providing additional design margin. The substitute's mechanical life specification (100,000 cycles) doubles that of the EVQ-PPBA25 (50,000 cycles), enhancing long-term reliability.

The outline dimensions differ marginally (6.00mm x 3.80mm vs. 6.00mm x 3.70mm), representing a 0.10mm increase in one axis. This minor dimensional variance is within typical PCB layout tolerances for surface mount components. The termination style differs (Gull Wing vs. J Lead); however, both are standard surface mount terminations compatible with automated assembly processes.

The KSR211GLFS carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

Frequently Asked Questions (FAQ)

Q: Can the KSR211GLFS directly replace the EVQ-PPBA25 without PCB modifications?

A: The KSR211GLFS is mechanically and electrically compatible with the EVQ-PPBA25 for most applications. The outline dimensions differ by 0.10mm in one axis (3.70mm vs. 3.80mm), which typically falls within standard PCB design tolerances. Verify your specific PCB footprint to confirm compatibility. The termination style change (J Lead to Gull Wing) requires no design modification, as both are standard surface mount terminations.

Q: Is the higher voltage rating (32VDC) of the KSR211GLFS a concern for a 12VDC application?

A: No. A component rated for higher voltage is suitable for lower voltage applications. The 32VDC rating of the KSR211GLFS provides additional design margin and does not affect performance in a 12VDC circuit.

Q: What is the significance of the mechanical life difference between these parts?

A: The EVQ-PPBA25 is rated for 50,000 cycles, while the KSR211GLFS is rated for 100,000 cycles. This difference reflects the expected operational lifespan under normal switching conditions. The KSR211GLFS offers extended durability, which may be beneficial for high-cycle applications.

Q: Are there packaging differences between these parts?

A: The EVQ-PPBA25 is supplied in standard packaging. The KSR211GLFS is available in Cut Tape (CT) and Digi-Reel® packaging options, providing flexibility for different procurement and assembly workflows.

Q: How do the ingress protection ratings compare?

A: The EVQ-PPBA25 specifies Dust Proof protection. The KSR211GLFS provides IP50 (Dust Protected) rating, which meets or exceeds the environmental sealing requirement of the original component.