ELM 4-305 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 4-305 is a T1 LED standoff manufactured by Bivar Inc., featuring a black PVC construction with a 0.305" (7.75mm) length specification. This component is designed for vertical mounting applications requiring precise height control in LED circuit board assemblies. The part maintains Active product status and is RoHS3 compliant, ensuring continued availability and regulatory compliance for new designs and production environments.

Substitute parts become necessary when inventory constraints occur, when design flexibility permits dimensional tolerance, or when alternative sourcing is required to maintain supply chain continuity. The substitute parts listed below maintain functional equivalence through shared electrical and mechanical parameters while offering different length specifications within the T1 LED standoff category.

Substiute Parts

ELM 4-305

Bivar Inc.In Stock: 884ELM 4-305 Datasheet

Current PartRFQ

ELM 2-315

Bivar Inc.In Stock: 7579ELM 2-315 Datasheet

Parametric EquivalentRFQ

ELM 2-320

Bivar Inc.In Stock: 26222ELM 2-320 Datasheet

Parametric EquivalentRFQ

ELM 4-315

Bivar Inc.In Stock: 4986ELM 4-315 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the ELM 4-305 is based on the following criteria:

Shared Core Parameters (All Substitutes):

• LED Type: T1
• Material: Black PVC
• Mounting Style: Vertical
• Color: Black
• Manufacturer: Bivar Inc.
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• Product Status: Active

Variable Parameter (Substitution Basis):

• Length: The substitute parts differ in length specification from the main part (0.305", 0.315", 0.320")

The ELM 4-305, ELM 2-315, ELM 2-320, and ELM 4-315 form a substitution group where length tolerance is the determining factor. All parts maintain identical electrical and material properties, with dimensional variation accommodating different circuit board standoff height requirements. Series designation (ELM 2 vs. ELM 4) reflects packaging and inventory categorization but does not affect functional equivalence within this standoff family.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

The ELM 4-305 remains the specified component when the exact 0.305" (7.75mm) standoff height is required by circuit board design specifications. All substitute parts maintain identical compliance certifications (ROHS3, MSL 1) and material composition, ensuring regulatory and environmental equivalence.

Substitute Selection Basis:

• ELM 4-315: Recommended when 0.315" (8.00mm) height tolerance is acceptable within design parameters. Maintains identical series designation (ELM 4) and offers 4972 units inventory availability.

• ELM 2-315: Functionally equivalent to ELM 4-315 with identical 0.315" (8.00mm) length specification. Series designation ELM 2 reflects packaging categorization. Highest inventory availability at 7562 units.

• ELM 2-320: Suitable for applications requiring maximum standoff height at 0.320" (8.13mm). Offers highest inventory availability at 26182 units, supporting extended production runs and supply chain resilience.

All substitute parts carry Active product status and maintain full RoHS3 compliance, confirming long-term availability and regulatory acceptance for production use.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between ELM 4-305 and its substitutes?

A: The primary difference is standoff length. ELM 4-305 specifies 0.305" (7.75mm), while substitutes range from 0.315" to 0.320". All other electrical, material, and compliance parameters remain identical.

Q: Can ELM 2-315 and ELM 4-315 be used interchangeably?

A: Yes. Both parts share identical length (0.315"), material (Black PVC), LED type (T1), and compliance specifications. The series designation (ELM 2 vs. ELM 4) reflects internal packaging categorization and does not affect functional performance or compatibility.

Q: What does the length specification tolerance mean for circuit board design?

A: Length specification determines the vertical standoff height above the circuit board. Selection depends on required clearance between the LED and the board surface. Designs with flexible height tolerance can accommodate any substitute; designs with fixed height requirements must use the specified part number.

Q: Are all parts in this group RoHS3 compliant?

A: Yes. ELM 4-305, ELM 2-315, ELM 2-320, and ELM 4-315 all carry ROHS3 Compliant certification, ensuring regulatory acceptance in all markets requiring RoHS compliance.

Q: What is MSL 1 (Unlimited) and how does it affect handling?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. Standard storage conditions apply without special desiccant packaging or humidity control requirements.

Q: Which substitute offers the best inventory availability?

A: ELM 2-320 provides the highest inventory at 26182 units, followed by ELM 2-315 at 7562 units. Inventory levels support selection based on supply chain requirements and production volume needs.

Q: Can I use ELM 2-320 if my design specifies ELM 4-305?

A: Substitution is valid only if the circuit board design accommodates the increased standoff height of 0.320" (8.13mm) versus the specified 0.305" (7.75mm). Design review is required to confirm dimensional compatibility.