ELM 4-255 Equivalent & Substitute Parts

Part Overview

The ELM 4-255 is a T1 LED standoff manufactured by Bivar Inc., featuring a vertical mounting configuration with 0.255" (6.48mm) length and black PVC construction for 2-lead applications. This component is an active product with ROHS3 compliance and MSL 1 rating. Alternative models become necessary when specific material requirements, dimensional tolerances, or inventory constraints necessitate selection of equivalent components that maintain functional compatibility within the T1 LED standoff category.

Substiute Parts

ELM 4-255

Bivar Inc.In Stock: 848ELM 4-255 Datasheet

Current PartRFQ

H-131C-1-120

Bivar Inc.In Stock: 1967H-131C-1-120 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between T1 LED standoff models is determined by the following key parameters:

• LED Type: T1 form factor (3mm diameter LED compatibility)
• Material: Mechanical housing material (PVC or Nylon alternatives)
• Length: Overall standoff height in inches and millimeters
• Lead Configuration: 2-lead support requirement
• Color: Black housing specification
• Compliance: ROHS3 and MSL ratings for environmental and handling requirements

The H-131C-1-120 serves as a parametric equivalent with material and length variations. Both parts support T1 LED components, feature black coloring, and maintain identical electrical lead support (2-lead configuration). The primary distinction lies in the standoff material (PVC versus Nylon) and a 0.005" (0.13mm) length reduction in the substitute part.

Parameter Comparison

Engineering Selection Recommendations

Both ELM 4-255 and H-131C-1-120 maintain active product status with full ROHS3 compliance and MSL 1 rating. Selection between these components should be based on material requirements and dimensional tolerance specifications for the application. The ELM 4-255 provides PVC construction at 0.255" length, while the H-131C-1-120 offers Nylon material with 0.250" length. Both parts are manufactured by Bivar Inc., ensuring equivalent electrical and mechanical support for T1 LED components in 2-lead configurations. Material selection depends on thermal, chemical, and mechanical environment requirements of the specific application.

Frequently Asked Questions (FAQ)

What determines compatibility between ELM 4-255 and H-131C-1-120?

Both parts support T1 LED components with identical 2-lead configurations, black coloring, and equivalent compliance ratings (ROHS3, MSL 1). Compatibility is established through matching LED form factor, lead count, and color specification.

What is the significance of the 0.005" length difference?

The ELM 4-255 measures 0.255" (6.48mm) while H-131C-1-120 measures 0.250" (6.35mm). This 0.005" (0.13mm) difference may affect board height clearance and PCB layout constraints. Component selection should verify that reduced height does not violate design specifications.

How does material composition affect part selection?

ELM 4-255 uses PVC; H-131C-1-120 uses Nylon. Material selection depends on application environment, including operating temperature range, exposure to chemicals or solvents, and mechanical stress requirements. Both materials maintain ROHS3 compliance.

Are both parts suitable for industrial applications?

Both ELM 4-255 and H-131C-1-120 carry MSL 1 (Unlimited) ratings, indicating minimal moisture sensitivity. Both hold active product status and maintain ROHS3 compliance, supporting use in standard industrial and commercial applications.

How should I verify inventory availability?

ELM 4-255 inventory is listed at 744 pieces; H-131C-1-120 inventory is listed at 1950 pieces. Confirm current availability with your supplier before design finalization, as inventory levels change based on supply cycles.