ELM 1-855 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 1-855 is a T1 3/4 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications. This component features a black PVC construction with a length of 0.855" (21.72mm) and is classified as an active product with full RoHS3 compliance. LED standoffs serve as mechanical and electrical interfaces for LED component positioning in electronic assemblies. Substitute parts are identified based on matching core functional parameters while accommodating minor dimensional variations within acceptable engineering tolerances.

Substiute Parts

ELM 1-855

Bivar Inc.In Stock: 1122ELM 1-855 Datasheet

Current PartRFQ

ELM 1-820

Bivar Inc.In Stock: 2082ELM 1-820 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELM 1-855 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: Bivar Inc.
• Series: ELM 1
• LED Type: T1 3/4
• Material: PVC
• Color: Black
• Mounting Orientation: Vertical
• RoHS Compliance: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)

Allowable Variation:

• Length: Minor dimensional variation (0.820" to 0.855") is permissible within the ELM 1 series design envelope, provided the standoff maintains functional compatibility with the target PCB layout and LED component positioning requirements.

The ELM 1-820 qualifies as a parametric equivalent because it maintains all mandatory matching parameters while presenting a length variation of 0.035" (0.89mm) from the primary part.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (ELM 1-855): The ELM 1-855 is recommended for applications requiring the specified 0.855" (21.72mm) standoff height. This part maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating, suitable for standard industrial and commercial electronic assemblies.

Substitute Part Selection (ELM 1-820): The ELM 1-820 serves as a parametric equivalent for applications where a 0.820" (20.83mm) standoff height is functionally acceptable. This substitute maintains identical material composition, LED type compatibility, and regulatory compliance. Selection between ELM 1-855 and ELM 1-820 is determined solely by PCB layout requirements and LED component positioning specifications.

Both parts carry identical RoHS3 compliance certification and MSL ratings, ensuring equivalent environmental and regulatory performance in qualified applications.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between ELM 1-855 and ELM 1-820?

A: The parts differ only in length specification. The ELM 1-855 measures 0.855" (21.72mm), while the ELM 1-820 measures 0.820" (20.83mm). All other parameters, including LED type, material, color, and compliance ratings, are identical.

Q: Can ELM 1-820 be used in place of ELM 1-855?

A: Substitution is permissible only if the 0.035" (0.89mm) length reduction does not compromise PCB layout requirements, LED component clearance, or mechanical assembly specifications. The decision must be based on specific application geometry.

Q: Are both parts RoHS3 compliant?

A: Yes. Both ELM 1-855 and ELM 1-820 carry ROHS3 Compliant certification and are suitable for applications requiring RoHS compliance.

Q: What is the MSL rating for these parts?

A: Both parts carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are these parts currently available?

A: Both parts maintain active product status. ELM 1-855 has 1041 pieces in stock, and ELM 1-820 has 1983 pieces in stock as new original inventory.

Q: What mounting orientation do these standoffs support?

A: Both parts are designed for vertical mounting applications and maintain identical mechanical orientation specifications.