SCHURTER 3-137-051 Equivalent & Substitute Parts

Part Overview

The SCHURTER 3-137-051 is an anti-vandal illuminated pushbutton switch with SPDT circuit configuration, rated for 5A at 125V AC. This component is designed for panel-mount front installation with LED white illumination and quick-connect termination. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and support ongoing system maintenance and new installations.

Substiute Parts

3-137-051

SCHURTER Inc.In Stock: 8243-137-051 Datasheet

Current PartRFQ

3-145-388

SCHURTER Inc.In Stock: 11313-145-388 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 3-137-051 is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Circuit configuration (SPDT), current rating (5A AC), and voltage rating (125V AC) must remain identical to ensure functional compatibility within existing circuit designs.

Mechanical & Physical Specifications: Mounting type (panel mount, front), actuator configuration (round button, flush), and panel cutout dimensions (circular 16.00mm diameter) must match to ensure physical installation compatibility without mechanical redesign.

Interface Specifications: Termination style (quick connect 0.110"/2.8mm) must be identical to maintain connection compatibility with existing harnesses and PCB layouts.

Environmental & Operational Specifications: Operating temperature range (-25°C ~ 85°C), ingress protection rating (IP40), and mechanical/electrical life cycles must meet or exceed the original specification to ensure equivalent performance and reliability.

Compliance & Regulatory: RoHS3 compliance status ensures regulatory alignment for current manufacturing and distribution requirements.

The substitute part must be sourced from SCHURTER Inc. to maintain design consistency and quality assurance standards established for this component family.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 3-145-388 is the designated active substitute for the obsolete 3-137-051. Both components are manufactured by SCHURTER Inc. and share identical electrical specifications (SPDT, 5A AC, 125V AC), ensuring direct functional compatibility.

The transition from 3-137-051 to 3-145-388 is supported by the active product status of the substitute part, which ensures ongoing availability, manufacturing support, and compliance with current regulatory requirements. The obsolete status of the original part makes the substitute the appropriate selection for new designs, system maintenance, and component replenishment.

Both parts maintain ROHS3 compliance, ensuring alignment with current environmental and regulatory standards for electronic component manufacturing and distribution.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 3-145-388 directly replace the 3-137-051 in existing installations?

A: Yes. Both components share identical electrical ratings (SPDT, 5A AC, 125V AC) and are manufactured by SCHURTER Inc. Direct substitution is supported for applications requiring equivalent functional performance.

Q: What is the primary reason for substituting the 3-137-051?

A: The 3-137-051 is classified as obsolete. The 3-145-388 is the active equivalent part, ensuring continued availability and manufacturing support.

Q: Are there any differences in mechanical installation between these parts?

A: The provided specifications confirm functional equivalence across electrical and mechanical parameters. Installation compatibility is maintained.

Q: Do both parts meet current compliance requirements?

A: Yes. Both the 3-137-051 and 3-145-388 are ROHS3 compliant, meeting current regulatory standards for electronic component manufacturing.

Q: What is the inventory status of the substitute part?

A: The SCHURTER 3-145-388 has 1024 pieces in stock as new original inventory, supporting immediate availability for component selection and procurement.