ELM 4-345 LED Standoff Equivalent and Substitute Parts

Part Overview

The ELM 4-345 is a T1 LED standoff manufactured by Bivar Inc. in black PVC material with a 0.345" (8.76mm) length. This component is an active product with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). LED standoffs are essential mechanical components that maintain precise spacing and alignment for LED assemblies in circuit board applications. Equivalent and substitute parts become necessary when addressing inventory constraints, supply chain disruptions, or project requirements where dimensional or material specifications allow for component interchangeability.

Substiute Parts

ELM 4-345

Bivar Inc.In Stock: 782ELM 4-345 Datasheet

Current PartRFQ

ELM 2-350

Bivar Inc.In Stock: 3583ELM 2-350 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The ELM 2-350 qualifies as a parametric equivalent to the ELM 4-345 based on the following matching criteria:

• LED Type: Both parts use T1 LED specifications
• Material: Both are manufactured from black PVC
• Manufacturer: Both are produced by Bivar Inc.
• Product Status: Both parts maintain active product status
• RoHS Compliance: Both meet ROHS3 requirements
• Moisture Sensitivity Level: Both are rated MSL 1 (Unlimited)

The primary dimensional difference is length: the ELM 4-345 measures 0.345" (8.76mm) while the ELM 2-350 measures 0.350" (8.89mm), representing a 0.005" (0.13mm) variation. This minimal difference falls within acceptable tolerances for mechanical standoff applications where precise LED positioning must account for board stackup and component height variations.

Parameter Comparison

Engineering Selection Recommendations

Both the ELM 4-345 and ELM 2-350 are active products with identical compliance certifications (ROHS3) and environmental ratings (MSL 1). Selection between these parts depends on circuit board design requirements and available inventory.

The ELM 4-345 provides the shorter standoff height at 0.345" (8.76mm) and should be selected when exact dimensional specifications match design schematics. The ELM 2-350 provides the longer standoff height at 0.350" (8.89mm) and is suitable for applications where the additional 0.005" (0.13mm) clearance accommodates board stackup variations or component tolerance chains.

Both parts carry equivalent regulatory compliance, ensuring interchangeability from a certification standpoint when mechanical constraints permit the dimensional substitution.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between the ELM 4-345 and ELM 2-350?

A: The standoff length differs by 0.005" (0.13mm): the ELM 4-345 is 0.345" (8.76mm) while the ELM 2-350 is 0.350" (8.89mm). All other parameters—LED type, material, manufacturer, compliance ratings, and moisture sensitivity—are identical.

Q: Can I substitute the ELM 2-350 for the ELM 4-345 in my design?

A: Substitution is acceptable if your circuit board design accommodates the 0.005" (0.13mm) additional height of the ELM 2-350. Verify that the longer standoff does not interfere with component clearances or board thickness constraints before implementing this substitution.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the ELM 4-345 and ELM 2-350 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compliance with current regulatory requirements.

Q: What material composition do these standoffs use?

A: Both parts are manufactured from black PVC, providing electrical insulation and mechanical stability for T1 LED mounting applications.

Q: Are there inventory or packaging considerations when selecting between these parts?

A: The ELM 4-345 has 678 pieces in stock while the ELM 2-350 has 3507 pieces available. Both are supplied in bag packaging. Availability may influence selection timing based on project requirements.