ELM 2-635 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 2-635 is a T1 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a 0.635" (16.13mm) length. This component is an active product with full RoHS3 compliance and MSL Level 1 rating, indicating unlimited moisture tolerance. Substitute parts are identified when inventory constraints, lead time requirements, or specific application geometry necessitate alternative standoff heights within the ELM 2 series while maintaining core functional and compliance parameters.

Substiute Parts

ELM 2-635

Bivar Inc.In Stock: 1013ELM 2-635 Datasheet

Current PartRFQ

ELM 2-665

Bivar Inc.In Stock: 909ELM 2-665 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the ELM 2 series is determined by the following criteria:

Mandatory Matching Parameters:

• LED Type: T1
• Material: PVC
• Color: Black
• Orientation: Vertical (SR VERT)
• Series: ELM 2
• RoHS Status: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)

Variable Parameter:

• Length: Allowable variation within the ELM 2 series standoff height range

The ELM 2-665 qualifies as a parametric equivalent because it maintains all mandatory parameters while offering an alternative length of 0.665" (16.89mm). This length variation accommodates different PCB stack-up requirements and component clearance specifications without compromising the core functional design or regulatory compliance of the standoff assembly.

Parameter Comparison

Engineering Selection Recommendations

ELM 2-635 Selection Criteria:

• Applications requiring 0.635" (16.13mm) standoff height
• PCB stack-up designs with specific component clearance specifications at this height
• Active product status with 926 units in current inventory

ELM 2-665 Selection Criteria:

• Applications requiring 0.665" (16.89mm) standoff height
• PCB designs requiring increased vertical clearance between standoff base and mounted components
• Active product status with 882 units in current inventory

Both parts maintain identical RoHS3 compliance, MSL Level 1 rating, and active product status. Selection between ELM 2-635 and ELM 2-665 is determined solely by the required standoff height dimension for the specific PCB assembly design. Both parts are suitable for applications requiring unlimited moisture tolerance during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can ELM 2-665 be used as a direct replacement for ELM 2-635?

A: ELM 2-665 is a parametric equivalent within the ELM 2 series, not a direct replacement. The 0.030" (0.76mm) length difference must be evaluated against PCB stack-up geometry and component clearance requirements. Substitution is valid only when the increased standoff height does not conflict with design constraints.

Q: What is the primary difference between these two parts?

A: The only difference is standoff length: ELM 2-635 measures 0.635" (16.13mm), while ELM 2-665 measures 0.665" (16.89mm). All other specifications—LED type, material, color, orientation, series, compliance ratings, and moisture sensitivity—are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both ELM 2-635 and ELM 2-665 are ROHS3 Compliant and suitable for applications requiring regulatory compliance in restricted substance directives.

Q: What does MSL Level 1 mean for these standoffs?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited moisture tolerance. These components do not require special moisture control during storage, handling, or shipping and can be stored in standard warehouse conditions without desiccant packaging.

Q: Are these parts available in other colors or materials?

A: The provided data specifies only Black PVC variants. Availability of alternative colors or materials within the ELM 2 series requires consultation of the complete product catalog.

Q: What is the significance of the ELM2-6 base product number?

A: The base product number ELM2-6 indicates both parts belong to the same product family and share the same core design platform. Variations in the full part number (ELM 2-635 vs. ELM 2-665) reflect specific dimensional configurations within this family.