ELM 1-840 Equivalent & Substitute Parts

Part Overview

The ELM 1-840 is a T1 3/4 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications. This component is constructed from black PVC material with a length of 0.840" (21.34mm) and maintains Active product status. The ELM 1-820 serves as a parametric equivalent, offering comparable functionality with minor dimensional variation in length specification, making it necessary to evaluate compatibility based on mechanical tolerance requirements in specific applications.

Substiute Parts

ELM 1-840

Bivar Inc.In Stock: 828ELM 1-840 Datasheet

Current PartRFQ

ELM 1-820

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The ELM 1-820 is identified as a parametric equivalent to the ELM 1-840 based on the following criteria:

Matching Parameters (Substitution Basis):

• Manufacturer: Bivar Inc.
• LED Type: T1 3/4
• Material: Black PVC
• Series: ELM 1
• Base Product Number: ELM1-8
• Product Status: Active
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameter:

• Length: 0.840" (21.34mm) vs. 0.820" (20.83mm) — a difference of 0.020" (0.51mm)

The primary distinction between these parts is the length dimension. Both components maintain identical electrical and material properties, with the length variance representing the only mechanical parameter difference. Applications requiring specific height clearance or stand-off distance must account for this 0.020" (0.51mm) dimensional variation.

Parameter Comparison

Engineering Selection Recommendations

Both the ELM 1-840 and ELM 1-820 maintain Active product status with full ROHS3 compliance and MSL Level 1 classification, ensuring long-term supply chain reliability and environmental regulatory adherence. Selection between these two standoffs depends entirely on the mechanical length requirement of the assembly. The ELM 1-840 provides 0.840" (21.34mm) of stand-off height, while the ELM 1-820 delivers 0.820" (20.83mm) of height. Design specifications requiring precise vertical clearance or height constraints must account for this 0.020" (0.51mm) differential to ensure proper component placement and electrical function.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between the ELM 1-840 and ELM 1-820?

A: The sole difference is the overall length specification. The ELM 1-840 measures 0.840" (21.34mm) while the ELM 1-820 measures 0.820" (20.83mm), representing a 0.020" (0.51mm) variation.

Q: Can I substitute the ELM 1-820 for the ELM 1-840 in my application?

A: Substitution is permissible only if the assembly mechanical constraints accommodate a 0.020" (0.51mm) reduction in stand-off height. All other electrical and material specifications are identical.

Q: Are both parts ROHS compliant?

A: Both the ELM 1-840 and ELM 1-820 are ROHS3 compliant with identical Moisture Sensitivity Level 1 (Unlimited) ratings.

Q: What LED type do these standoffs accommodate?

A: Both parts are designed for T1 3/4 LED components.

Q: Do these parts share the same manufacturer?

A: Yes, both are manufactured by Bivar Inc. and are part of the ELM 1 series with identical base product number ELM1-8.