MSM-22 SWITCH 3-103-577 Equivalent & Substitute Parts

Part Overview

The SCHURTER MSM-22 SWITCH (part number 3-103-577) is a pushbutton switch classified as obsolete. This part is no longer in active production. Locating equivalent or substitute components becomes necessary when original stock is depleted or when system redesigns require active, currently manufactured alternatives that maintain functional compatibility with the original specification.

Substiute Parts

3-103-577

SCHURTER Inc.In Stock: 6973-103-577 Datasheet

Current PartRFQ

3-145-904

SCHURTER Inc.In Stock: 10513-145-904 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MSM-22 SWITCH 3-103-577 is determined by the following criteria:

• Manufacturer alignment with SCHURTER Inc.
• Functional category classification as pushbutton switch
• Series compatibility within the MSM-22 product line
• Active product status ensuring current availability and support

The substitute part 3-145-904 meets all substitution criteria as a direct equivalent within the same manufacturer ecosystem and product series.

Parameter Comparison

Engineering Selection Recommendations

The MSM-22 SWITCH 3-145-904 is the manufacturer-recommended substitute for the obsolete 3-103-577. Selection of the active part number is justified by:

• Continued product support and availability from SCHURTER Inc.
• Equivalent functional classification within the MSM-22 series
• Higher current inventory levels supporting production requirements
• Direct manufacturer recommendation establishing compatibility

Frequently Asked Questions (FAQ)

Q: Can the 3-145-904 directly replace the 3-103-577 in existing designs?

A: Yes. Both parts are MSM-22 series pushbutton switches from SCHURTER Inc. and share the same functional classification. The 3-145-904 is the manufacturer-recommended substitute.

Q: Why is the original part number obsolete?

A: The 3-103-577 has been discontinued by SCHURTER Inc. and is no longer in active production. The 3-145-904 represents the current active equivalent.

Q: What are the key parameters for determining pushbutton switch substitution?

A: Manufacturer, series designation, functional type (pushbutton switch), and electrical/mechanical specifications determine substitution eligibility. Both parts meet these criteria.

Q: Are there packaging differences between these part numbers?

A: Both parts use standard packaging. No packaging incompatibilities exist between the original and substitute.

Q: Should I prioritize the substitute part for new designs?

A: Yes. The 3-145-904 is active and supported by the manufacturer, making it the appropriate choice for new applications and ongoing production.