SCHURTER MSM22 NX CS 05A AI 0GN (3-100-143) Equivalent & Substitute Parts

Part Overview

The SCHURTER 3-100-143 is an anti-vandal illuminated pushbutton switch with SPDT circuit configuration, designed for panel-mount front installation. This component features a 5A AC rating at 125V, round flush button actuator with power symbol marking, and green LED illumination at 24VDC nominal. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system maintenance and new design implementations where this functionality is required.

Substiute Parts

3-100-143

SCHURTER Inc.In Stock: 9923-100-143 Datasheet

Current PartRFQ

3-145-905

SCHURTER Inc.In Stock: 9813-145-905 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 3-100-143 is determined by the following critical parameters:

Electrical Parameters: Current rating (5A AC), voltage rating (125V AC), circuit configuration (SPDT), and switch function (On-Mom) must remain constant to ensure functional compatibility within the control circuit.

Mechanical Parameters: Panel mount front installation, round flush button actuator with 22.10mm circular cutout, and quick connect 0.110" (2.8mm) termination must be preserved for physical installation compatibility.

Illumination Parameters: LED green illumination at 24VDC nominal voltage must be maintained for visual indication consistency.

Environmental Parameters: Operating temperature range (-25°C to 85°C), mechanical life (1,500,000 cycles), and electrical life (200,000 cycles) establish the performance envelope for substitute selection.

Compliance Parameters: RoHS3 compliance status must be maintained for regulatory adherence.

The SCHURTER 3-145-905 qualifies as a substitute based on matching the core functional description and series compatibility within the MSM22 NX CS product family.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 3-145-905 is designated as the manufacturer-recommended substitute for the obsolete 3-100-143. The transition from obsolete to active product status supports long-term supply chain continuity and component availability for maintenance and production applications.

Selection of the 3-145-905 is appropriate for applications requiring replacement of the 3-100-143 where the identical part number description (MSM22 NX CS 05A AI 0GN) indicates functional equivalence within the MSM22 NX CS series. The active product status of the 3-145-905 ensures ongoing manufacturer support and availability.

Frequently Asked Questions (FAQ)

Q: Why is the 3-100-143 being replaced? A: The 3-100-143 has reached obsolete status. The manufacturer recommends the 3-145-905 as the active equivalent for continued system support and component procurement.

Q: Are the 3-100-143 and 3-145-905 electrically identical? A: Both components share the identical description designation (MSM22 NX CS 05A AI 0GN) and are within the same MSM22 NX CS series, indicating functional equivalence for the specified electrical and mechanical parameters.

Q: Can the 3-145-905 be used as a direct replacement in existing installations? A: The 3-145-905 is the manufacturer-recommended substitute. Verification of mechanical fit and electrical compatibility with the specific installation should be performed based on the panel cutout dimensions (22.10mm circular) and termination style (Quick Connect - 0.110").

Q: What is the difference between the part numbers? A: The 3-145-905 represents the active production equivalent within the MSM series family. The different part number reflects the manufacturer's product line organization while maintaining functional compatibility with the obsolete 3-100-143.

Q: Are there any compliance differences between these parts? A: Both components are specified within the SCHURTER product family. Compliance verification should reference the specific datasheets for each part number to confirm RoHS and REACH status alignment with application requirements.