ELM 4-120 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 4-120 is a T1 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a 0.120" (3.05mm) length specification. This component is constructed from black PVC material and accommodates 2-lead LED configurations. The part maintains Active product status and is ROHS3 compliant, making it suitable for current production environments.

Substitute parts become necessary when the primary part experiences inventory constraints, extended lead times, or when design flexibility permits alternative mechanical dimensions within acceptable tolerances. The ELM 4-120 has identified equivalents that maintain functional compatibility through matching core electrical and mechanical parameters.

Substiute Parts

ELM 4-120

Bivar Inc.In Stock: 946ELM 4-120 Datasheet

Current PartRFQ

ELM 2-120

Bivar Inc.In Stock: 86478ELM 2-120 Datasheet

Parametric EquivalentRFQ

ELM 4-115

Bivar Inc.In Stock: 1770ELM 4-115 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELM 4-120 is determined by the following critical parameters:

Primary Compatibility Criteria:

• LED Type: T1 (fixed requirement)
• Lead Configuration: 2-Lead (fixed requirement)
• Material: Black PVC (fixed requirement)
• Mounting Style: Vertical Surface Mount (fixed requirement)
• RoHS Compliance: ROHS3 Compliant (fixed requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (fixed requirement)

Secondary Compatibility Criteria:

• Length: Tolerance range permits 0.115" to 0.120" (2.92mm to 3.05mm)
• Series: ELM 2 and ELM 4 series both acceptable

The identified substitutes (ELM 2-120 and ELM 4-115) maintain all primary compatibility criteria. The ELM 4-115 represents a length variant within the same series, while the ELM 2-120 represents a series variant with identical length specification.

Parameter Comparison

Engineering Selection Recommendations

ELM 2-120 Selection Criteria: The ELM 2-120 provides identical dimensional and electrical specifications to the ELM 4-120, with the distinction of belonging to the ELM 2 series rather than the ELM 4 series. Both parts maintain Active product status and ROHS3 compliance. The ELM 2-120 carries significantly higher inventory availability (86,435 pieces) compared to the ELM 4-120 (887 pieces), making it suitable for applications where series designation does not impose design constraints.

ELM 4-115 Selection Criteria: The ELM 4-115 maintains series consistency with the ELM 4-120 while introducing a 0.005" (0.13mm) length reduction. This part remains within the same ELM 4 series and carries Active product status with ROHS3 compliance. The ELM 4-115 is appropriate for applications where series continuity is required and the reduced length specification is mechanically acceptable within the assembly design.

Both substitutes carry ROHS3 compliance and MSL Level 1 ratings, ensuring compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the ELM 2-120 be used as a direct replacement for the ELM 4-120?

A: Yes. The ELM 2-120 matches all critical parameters: T1 LED type, 2-lead configuration, black PVC material, 0.120" length, vertical mounting style, ROHS3 compliance, and MSL Level 1. The series designation difference (ELM 2 versus ELM 4) does not affect functional compatibility when these parameters are identical.

Q: What is the primary difference between the ELM 4-115 and ELM 4-120?

A: The ELM 4-115 has a reduced length of 0.115" (2.92mm) compared to the ELM 4-120 at 0.120" (3.05mm). This 0.005" difference represents a 4.2% reduction in standoff height. All other parameters remain identical. Selection depends on whether the assembly design accommodates the shorter dimension.

Q: Are all three parts ROHS3 compliant?

A: Yes. The ELM 4-120, ELM 2-120, and ELM 4-115 are all ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity ratings.

Q: Which substitute has better inventory availability?

A: The ELM 2-120 has significantly higher inventory (86,435 pieces) compared to the ELM 4-120 (887 pieces) and ELM 4-115 (1,684 pieces).

Q: Can the ELM 4-115 be used when the design requires exactly 0.120" length?

A: No. The ELM 4-115 is 0.005" shorter and is only suitable when the assembly design permits the reduced 0.115" dimension.