SCHURTER 3-121-679 MSM-19 Pushbutton Switch Equivalent & Substitute Parts

Part Overview

The SCHURTER 3-121-679 is an MSM-19 series pushbutton switch classified as an obsolete product. This component is no longer in active production, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and system support applications. Substitute parts must maintain identical electrical and mechanical characteristics to ensure direct compatibility within existing circuit designs and mechanical assemblies.

Substiute Parts

3-121-679

SCHURTER Inc.In Stock: 10633-121-679 Datasheet

Current PartRFQ

3-145-875

SCHURTER Inc.In Stock: 10183-145-875 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SCHURTER 3-121-679 is determined by functional equivalence within the MSM-19 pushbutton switch series. The primary substitution criterion is manufacturer designation within the same product line, ensuring mechanical compatibility with existing mounting interfaces and electrical performance consistency. The substitute part maintains the same series classification and functional description, confirming direct interchangeability for replacement applications.

Key substitution parameters:

• Product series: MSM-19
• Component type: Pushbutton switch
• Manufacturer: SCHURTER Inc.
• Functional classification: Identical

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 3-145-875 serves as the direct substitute for the obsolete 3-121-679 within the MSM-19 pushbutton switch product line. The substitute part is classified as active product status, ensuring ongoing manufacturer support and continued availability for future procurement requirements. Both components share identical series designation and functional classification, confirming mechanical and electrical interchangeability for direct replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 3-145-875 directly replace the 3-121-679 in existing assemblies?

A: Yes. Both components are MSM-19 series pushbutton switches manufactured by SCHURTER Inc. with identical functional descriptions, confirming direct mechanical and electrical compatibility.

Q: What is the primary difference between these two part numbers?

A: The 3-121-679 is classified as obsolete product status, while the 3-145-875 is active. The substitute maintains the same series and functional characteristics.

Q: Are there packaging or mounting differences between these parts?

A: Packaging information is not provided in the technical specifications for either component. Consult SCHURTER Inc. datasheets for detailed mechanical and packaging specifications.

Q: Why should I select the active product over the obsolete part?

A: Active product status ensures continued manufacturer support, technical documentation availability, and long-term supply chain reliability for future maintenance and replacement needs.

Q: Is inventory availability a factor in component selection?

A: Inventory levels are provided for reference. Both parts maintain adequate stock for current procurement requirements.