ELM 2-155 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 2-155 is a T1 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a height specification of 0.155" (3.94mm). This component is classified as active in product status and is RoHS3 compliant with moisture sensitivity level 1 (unlimited). Alternative models are necessary when PCB layout constraints require different standoff heights or when inventory availability necessitates selection from equivalent series variants.

Substiute Parts

ELM 2-155

Bivar Inc.In Stock: 990ELM 2-155 Datasheet

Current PartRFQ

ELM 4-150

Bivar Inc.In Stock: 12375ELM 4-150 Datasheet

Parametric EquivalentRFQ

ELM 5-150

Bivar Inc.In Stock: 1137ELM 5-150 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELM 2-155 is determined by the following critical parameters:

• LED Type: Must be T1 (all qualified substitutes maintain this specification)
• Material: Must be PVC (all qualified substitutes maintain this specification)
• Color: Must be Black (all qualified substitutes maintain this specification)
• Height Tolerance: Mechanical compatibility allows lengths of 0.150" (3.81mm), representing a dimensional variance of 0.005" from the primary part specification

The substitute parts ELM 4-150 and ELM 5-150 are parametrically equivalent to the ELM 2-155 within acceptable mechanical constraints. Both substitutes maintain identical LED type, material composition, and color specifications while operating within a standardized height range suitable for T1 LED standoff applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and full RoHS3 compliance with moisture sensitivity level 1 (unlimited exposure tolerance). The ELM 4-150 and ELM 5-150 are functionally substitutable for the ELM 2-155 based on shared electrical and mechanical parameters.

Selection between ELM 4-150 and ELM 5-150 as substitutes should be based on inventory availability and supply chain logistics, as both parts demonstrate identical compliance certifications and parametric specifications. The ELM 4-150 offers 12,323 units in current inventory, while the ELM 5-150 maintains 1,125 units in stock.

The height differential of 0.005" between the primary part and substitutes must be evaluated against specific PCB design and mechanical assembly requirements to ensure compatibility within system constraints.

Frequently Asked Questions (FAQ)

Q: Can ELM 4-150 and ELM 5-150 be used interchangeably with ELM 2-155?

A: Yes, both parts meet the core parametric requirements for substitution: identical T1 LED type, PVC material, black color, and equivalent moisture sensitivity ratings. The height difference of 0.005" must be accommodated within your mechanical design specifications.

Q: What are the primary differences between the substitute parts?

A: ELM 4-150 and ELM 5-150 differ only in series designation (ELM 4 versus ELM 5) and inventory availability. Both maintain identical physical dimensions of 0.150" (3.81mm) and all compliance certifications.

Q: Are there compliance differences between these parts?

A: No. All three parts are ROHS3 compliant, carry EAR99 ECCN classification, and maintain MSL 1 (unlimited) rating. The ELM 4-150 and ELM 5-150 both include REACH Unaffected status.

Q: How should height variation be considered in design?

A: The ELM 2-155 at 0.155" (3.94mm) versus the substitute parts at 0.150" (3.81mm) represent a 0.005" reduction in standoff height. This variation must be evaluated within the context of your specific PCB layout, LED positioning requirements, and mechanical clearance parameters.

Q: What packaging format applies to all parts?

A: All parts are supplied in bag packaging, consistent across the ELM 2-155 and both substitute variants.