MSM-30 SWITCH 3-139-387 Equivalent & Substitute Parts

Part Overview

The SCHURTER MSM-30 SWITCH (part number 3-139-387) is a pushbutton switch classified as obsolete. Due to its discontinued status, identifying equivalent and substitute components is necessary for system maintenance, repair, and redesign applications where this switch is currently specified.

Substiute Parts

3-139-387

SCHURTER Inc.In Stock: 10183-139-387 Datasheet

Current PartRFQ

3-145-634

SCHURTER Inc.In Stock: 12363-145-634 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MSM-30 SWITCH 3-139-387 is based on the following criteria:

The manufacturer-recommended substitute maintains identical functional classification as a pushbutton switch within the MSM-30 series. The substitute part is selected based on:

• Identical product type (Pushbutton Switch)
• Same series designation (MSM-30)
• Manufacturer recommendation by SCHURTER Inc.
• Active product status ensuring ongoing availability and support

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER MSM-30 SWITCH 3-145-634 is the manufacturer-recommended substitute for the obsolete 3-139-387. Selection of the active substitute part is appropriate for new designs and ongoing production applications. The substitute maintains the same functional classification and series designation, ensuring compatibility within systems currently specified for the MSM-30 pushbutton switch platform.

Frequently Asked Questions (FAQ)

Q: Can the 3-145-634 directly replace the 3-139-387 in existing applications?

A: Yes. Both parts are MSM-30 series pushbutton switches manufactured by SCHURTER Inc. The substitute is the manufacturer-recommended replacement for the obsolete original part.

Q: What is the primary reason for substitution?

A: The original part 3-139-387 has been discontinued (obsolete status). The 3-145-634 is an active product providing continued availability for this switch category.

Q: Are there packaging differences between these parts?

A: Packaging information is not provided in the technical specifications for either part. Verify packaging requirements with SCHURTER Inc. if specific packaging standards are required for your application.

Q: What inventory considerations should be evaluated?

A: The substitute part 3-145-634 has higher current inventory (1127 Pcs) compared to remaining stock of the original part (986 Pcs). For long-term supply chain planning, the active status of the substitute ensures ongoing availability.