ELM 1-255 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 1-255 is a T1 3/4 LED standoff manufactured by Bivar Inc., featuring a vertical mounting configuration with black PVC construction and a 0.255" (6.48mm) length specification. This component is classified as Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The ELM 1-255 serves as a mechanical support and alignment component for LED assemblies in vertical mounting applications. Substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and material specifications within the ELM series product line.

Substiute Parts

ELM 1-255

Bivar Inc.In Stock: 763ELM 1-255 Datasheet

Current PartRFQ

ELM 1-250

Bivar Inc.In Stock: 52111ELM 1-250 Datasheet

Parametric EquivalentRFQ

ELM 3-250

Bivar Inc.In Stock: 8663ELM 3-250 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELM 1-255 are identified through parametric equivalency based on the following critical matching criteria:

Primary Matching Parameters:

• LED Type: T1 3/4 (all substitutes maintain identical LED form factor)
• Material: Black PVC (consistent across all equivalent parts)
• Mounting Configuration: Vertical orientation
• RoHS Compliance: ROHS3 Compliant (all substitutes meet this requirement)
• MSL Rating: 1 (Unlimited moisture sensitivity level)
• Manufacturer: Bivar Inc. (all substitutes from same manufacturer)

Secondary Consideration:

• Length specification: Substitutes operate at 0.250" (6.35mm), representing a 0.005" (0.13mm) dimensional variance from the main part

The ELM 1-250 and ELM 3-250 are classified as parametric equivalents due to matching LED type, material composition, color, mounting style, and compliance certifications. Length variation is within mechanical tolerance ranges for vertical LED standoff applications.

Parameter Comparison

Engineering Selection Recommendations

ELM 1-250 Selection Criteria: The ELM 1-250 maintains identical series designation (ELM 1) with the main part ELM 1-255. Both components share base product number ELM1-2 and are classified as Active status. The 0.005" length reduction represents a minor dimensional variance suitable for applications where vertical standoff height tolerance permits 0.250" specification. ROHS3 compliance and MSL 1 rating are maintained. This substitute is appropriate for direct replacement in designs with flexible height specifications.

ELM 3-250 Selection Criteria: The ELM 3-250 operates within the ELM 3 series with base product number ELM3-2. This substitute maintains all critical electrical and material parameters (T1 3/4 LED type, black PVC material, vertical mounting, ROHS3 compliance, MSL 1 rating). The series transition from ELM 1 to ELM 3 introduces a mechanical design variant (self-retaining feature) while preserving parametric equivalency. This substitute is suitable for applications where the self-retaining mechanical feature provides design advantage and length specification of 0.250" is acceptable.

Both substitutes maintain Active product status and full compliance certifications. Selection between ELM 1-250 and ELM 3-250 depends on mechanical mounting requirements and series compatibility with existing design specifications.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between ELM 1-255 and its substitutes? A: The ELM 1-255 specifies a 0.255" (6.48mm) length, while both substitute parts (ELM 1-250 and ELM 3-250) operate at 0.250" (6.35mm). This 0.005" dimensional difference is the only variance among parametrically equivalent parts. All other specifications—LED type (T1 3/4), material (black PVC), mounting style (vertical), and compliance ratings—remain identical.

Q: Can ELM 1-250 and ELM 3-250 be used interchangeably with ELM 1-255? A: Both parts are parametric equivalents based on matching LED type, material, color, mounting configuration, and compliance certifications. Interchangeability depends on whether the application design accommodates the 0.250" length specification. The ELM 3-250 introduces a self-retaining mechanical feature not present in the ELM 1-255, which may provide additional mounting stability in certain applications.

Q: What does "self-retaining" mean in the ELM 1-250 and ELM 3-250 descriptions? A: Self-retaining refers to a mechanical design feature that provides inherent retention of the LED component without requiring additional fastening hardware. This feature is present in both substitute parts but not specified for the main part ELM 1-255.

Q: Are all three parts ROHS3 compliant? A: Yes. The ELM 1-255, ELM 1-250, and ELM 3-250 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting identical environmental and regulatory requirements.

Q: What is the significance of the series designation (ELM 1 vs. ELM 3)? A: The series designation indicates the product line within Bivar Inc.'s LED standoff portfolio. ELM 1-255 and ELM 1-250 share the same series (ELM 1) with identical base product number (ELM1-2). The ELM 3-250 operates within a different series (ELM 3) with base product number ELM3-2. Series differences may reflect design generation or mechanical feature variations while maintaining parametric equivalency for the specified LED type and mounting configuration.

Q: Is packaging identical across all three parts? A: Yes. All three parts—ELM 1-255, ELM 1-250, and ELM 3-250—are supplied in Bag packaging format.