SCHURTER 3-102-648 MSM Mechanical Metal Line Switch - Equivalent & Substitute Parts

Part Overview

The SCHURTER 3-102-648 is an anti-vandal illuminated pushbutton switch with SPDT circuit configuration, designed for panel-mount front installation. This component features a ceramic actuator with LED white illumination and is rated for 10A AC at 250V. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and component sourcing in applications where this switch was originally specified.

Substiute Parts

3-102-648

SCHURTER Inc.In Stock: 11183-102-648 Datasheet

Current PartRFQ

3-145-387

SCHURTER Inc.In Stock: 11853-145-387 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 3-102-648 is determined by the following critical parameters:

• Circuit configuration (SPDT)
• Switch function (On-Momentary)
• Current and voltage ratings (10A AC, 250V AC)
• Mounting type (Panel Mount, Front)
• Anti-vandal and illuminated characteristics
• Actuator type (Round, Button, Flush)
• Illumination specifications (LED, White, 24 VDC)
• Termination style (Quick Connect - 0.110")
• Panel cutout dimensions (Circular - 16.10mm Dia)
• Operating temperature range (-25°C to 85°C)
• Ingress protection rating (IP40)

The SCHURTER 3-145-387 qualifies as a manufacturer-recommended substitute based on matching the core functional requirements of the original component within the MSM mechanical metal line switch product family.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 3-145-387 is designated as the manufacturer-recommended substitute for the obsolete 3-102-648. As an active product within the SCHURTER MSM mechanical metal line switch portfolio, the 3-145-387 provides continuity for applications requiring replacement or new installations where the original part number is no longer available. Both components are manufactured by SCHURTER Inc. and maintain compliance with ROHS3 and REACH regulatory requirements applicable to electronic components.

Selection of the substitute part should be based on verification that the 3-145-387 meets the specific electrical, mechanical, and environmental requirements of the target application, particularly regarding circuit configuration, current/voltage ratings, mounting dimensions, and illumination specifications.

Frequently Asked Questions (FAQ)

Q: Why is the 3-102-648 being replaced? A: The 3-102-648 is classified as obsolete. The 3-145-387 is the manufacturer-recommended active substitute within the MSM mechanical metal line switch series.

Q: What are the critical parameters for substitution compatibility? A: Substitution compatibility is determined by SPDT circuit configuration, 10A AC / 250V AC ratings, panel-mount front installation, anti-vandal illuminated design, round flush button actuator, LED white illumination at 24 VDC, quick-connect 0.110" termination, circular 16.10mm panel cutout, IP40 ingress protection, and -25°C to 85°C operating temperature range.

Q: Are both parts compliant with current regulations? A: Both the 3-102-648 and 3-145-387 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the difference in product status between these parts? A: The 3-102-648 is obsolete and no longer in active production. The 3-145-387 is an active product with current manufacturing and availability.

Q: Can the 3-145-387 be used as a direct replacement in existing installations? A: The 3-145-387 is the manufacturer-recommended substitute. Verification of electrical, mechanical, and environmental compatibility with the specific application is required before implementation.