MSM-22 SWITCH 3-138-694 Equivalent & Substitute Parts

Part Overview

The SCHURTER MSM-22 SWITCH (part number 3-138-694) is a pushbutton switch classified as obsolete. This part is no longer in active production. Identifying equivalent and substitute parts is necessary to maintain system functionality, ensure supply chain continuity, and support ongoing maintenance and repair operations for equipment utilizing this component.

Substiute Parts

3-138-694

SCHURTER Inc.In Stock: 9843-138-694 Datasheet

Current PartRFQ

3-145-673

SCHURTER Inc.In Stock: 8743-145-673 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MSM-22 SWITCH 3-138-694 is determined by functional equivalence within the same product series and manufacturer. The primary substitute part maintains identical functional classification as a pushbutton switch while offering active product status and continued manufacturer support.

Substitution criteria are based on:

• Identical product type (Pushbutton Switch)
• Same series designation (MSM-22)
• Same manufacturer (SCHURTER Inc.)
• Compatible packaging and form factor
• Functional interchangeability in the same application context

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-145-673 is the manufacturer-recommended equivalent for the obsolete 3-138-694. Selection between these parts should be based on availability and project timeline requirements.

For new designs or long-term production support, the active-status part 3-145-673 is preferred due to ongoing manufacturer availability and support. For legacy system maintenance where original part specifications are critical, the original 3-138-694 remains available from current inventory.

Both parts are manufactured by SCHURTER Inc. and maintain functional equivalence within the MSM-22 pushbutton switch series.

Frequently Asked Questions (FAQ)

Q: Can 3-145-673 be used as a direct replacement for 3-138-694? A: Yes. Both parts are MSM-22 series pushbutton switches from SCHURTER Inc. and are functionally equivalent for the same applications.

Q: Why is 3-138-694 listed as obsolete? A: The part has been discontinued by the manufacturer. The active substitute 3-145-673 is the current production equivalent.

Q: What is the difference between these two part numbers? A: The primary difference is product status. 3-138-694 is obsolete with no future manufacturing, while 3-145-673 is active with ongoing manufacturer support and availability.

Q: Are packaging and form factors identical? A: Both parts are MSM-22 series components from the same manufacturer with compatible packaging for direct substitution.

Q: Which part should be selected for new designs? A: For new designs and systems requiring long-term support, 3-145-673 is recommended due to its active status and continued manufacturer availability.