ELM 5-155 LED Standoff Equivalent and Substitute Parts

Part Overview

The ELM 5-155 is a T1 LED standoff manufactured by Bivar Inc., featuring a black PVC construction with a 0.155" (3.94mm) vertical height. This component is actively produced and ROHS3 compliant, serving as a mechanical support and alignment structure for T1-format LEDs in vertical mounting applications. Alternative equivalent parts may be required when specific height or series constraints necessitate component substitution while maintaining functional compatibility.

Substiute Parts

ELM 5-155

Bivar Inc.In Stock: 1062ELM 5-155 Datasheet

Current PartRFQ

ELM 4-150

Bivar Inc.In Stock: 12375ELM 4-150 Datasheet

Parametric EquivalentRFQ

ELM 5-150

Bivar Inc.In Stock: 1137ELM 5-150 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELM 5-155 are qualified based on the following critical parameters:

• LED Format: T1 (maintained across all equivalents)
• Material: Black PVC (maintained across all equivalents)
• Mounting Orientation: Vertical (maintained across all equivalents)
• RoHS Compliance: ROHS3 Compliant (maintained across all equivalents)
• Height Tolerance: Mechanical height variation from 0.150" to 0.155" is permissible within standard vertical LED standoff applications
• Series Compatibility: Parts from ELM 4 and ELM 5 series share compatible mechanical interfaces

The primary variable parameter allowing substitution is the standoff height. The ELM 5-155 at 0.155" (3.94mm) can be substituted with the ELM 5-150 at 0.150" (3.81mm) within the same series, or with the ELM 4-150 from the ELM 4 series, provided application tolerances accommodate the 0.005" (0.13mm) height reduction.

Parameter Comparison

Engineering Selection Recommendations

All three parts—ELM 5-155, ELM 5-150, and ELM 4-150—are actively produced and ROHS3 compliant, making them suitable for applications requiring environmental and regulatory conformance. The ELM 5-155 and ELM 5-150 maintain series continuity, with the primary distinction being a 0.005" height differential. The ELM 4-150 introduces a series change alongside the height specification.

Selection between these parts should be based on application-specific mechanical clearance requirements and the criticality of the 0.005" dimensional variance. Applications with strict height constraints should specify the ELM 5-155. Where height tolerance permits, the ELM 5-150 or ELM 4-150 provide equivalent functional performance with potentially greater inventory availability.

Frequently Asked Questions (FAQ)

Q: Can ELM 5-150 and ELM 4-150 be used interchangeably with the ELM 5-155?

A: Both parts are mechanically compatible substitutes provided the application tolerates a 0.005" (0.13mm) reduction in standoff height. ELM 5-150 maintains series continuity, while ELM 4-150 introduces a series change. Verify application mechanical envelope constraints before substitution.

Q: What is the critical height difference between ELM 5-155 and the substitute parts?

A: The ELM 5-155 measures 0.155" (3.94mm) in height, while both ELM 5-150 and ELM 4-150 measure 0.150" (3.81mm). This represents a 0.005" (0.13mm) reduction. Applications with nominal clearances should confirm tolerance acceptance.

Q: Are there compliance differences between the three parts?

A: All three parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). No compliance or environmental qualification differences exist between them.

Q: Can I use ELM 4-150 if ELM 5-150 is unavailable?

A: Yes. Both parts share identical height, material, color, LED format, and compliance specifications. The series designation represents an internal manufacturer classification and does not indicate functional differences for standard vertical T1 LED mounting applications.

Q: What inventory status should I consider when selecting between equivalents?

A: Current inventory levels are: ELM 5-155 (1020 pcs), ELM 5-150 (1125 pcs), and ELM 4-150 (12323 pcs). Availability may vary; consult current stock status for procurement planning.