ELM 1-155 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 1-155 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 0.155" (3.94mm) length specification. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent functional performance is required due to inventory constraints, design revisions, or application-specific length requirements within the T1 3/4 LED standoff category.

Substiute Parts

ELM 1-155

Bivar Inc.In Stock: 1032ELM 1-155 Datasheet

Current PartRFQ

ELM 3-160

Bivar Inc.In Stock: 1153ELM 3-160 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELM 1-155 are identified within the T1 3/4 LED standoff category based on the following critical parameters:

Substitution Criteria:

• LED form factor: T1 3/4 (mandatory match)
• Material composition: Black PVC (mandatory match)
• Color: Black (mandatory match)
• RoHS compliance: ROHS3 Compliant (mandatory match)
• Moisture sensitivity: MSL 1 (mandatory match)
• Length tolerance: Allowable variation within mechanical design constraints

The ELM 3-160 qualifies as a parametric equivalent because it maintains identical specifications across all mandatory criteria while providing a 0.005" (0.12mm) length variation. This dimensional difference accommodates applications requiring slightly increased standoff height while preserving all electrical, material, and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (ELM 1-155): Select the ELM 1-155 when the application design specifies a 0.155" (3.94mm) standoff height. This part maintains active production status with full ROHS3 compliance and unlimited moisture sensitivity rating, suitable for standard industrial and commercial LED mounting applications.

Substitute Selection (ELM 3-160): The ELM 3-160 serves as a direct substitute when the ELM 1-155 is unavailable or when application requirements accommodate a 0.160" (4.06mm) standoff height. The 0.005" (0.12mm) length increase does not affect electrical performance, material properties, or regulatory compliance. Both parts maintain identical RoHS3 certification and MSL 1 classification, ensuring equivalent environmental and handling characteristics.

Compliance Assurance: Both parts satisfy ROHS3 compliance requirements and carry MSL 1 (unlimited) moisture sensitivity ratings, eliminating compliance-related constraints in substitution decisions. Selection between these parts is determined solely by mechanical height requirements within the application design.

Frequently Asked Questions (FAQ)

Q: Can the ELM 3-160 be used as a direct replacement for the ELM 1-155 in all applications?

A: The ELM 3-160 functions as a parametric equivalent for applications where the 0.005" (0.12mm) length increase is mechanically acceptable. Both parts share identical electrical, material, and compliance specifications. Substitution feasibility depends on the specific mechanical clearance and height requirements of the application design.

Q: What is the primary difference between these two parts?

A: The sole difference is the standoff length: ELM 1-155 measures 0.155" (3.94mm), while ELM 3-160 measures 0.160" (4.06mm). All other specifications—LED type, material, color, RoHS status, and moisture sensitivity—are identical.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the ELM 1-155 and ELM 3-160 carry ROHS3 compliance certification, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What does MSL 1 (Unlimited) mean for these parts?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning these components have unlimited shelf life under standard storage conditions without requiring special moisture-control packaging or handling procedures.

Q: Can I interchange these parts within the same circuit board design?

A: Interchangeability depends on the mechanical design constraints of your application. If the printed circuit board layout and component clearances accommodate the 0.160" height of the ELM 3-160, substitution is feasible. If the design specifies a maximum height of 0.155", the ELM 1-155 is required.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are mechanical standoffs for T1 3/4 LED mounting. Electrical performance is determined by the LED component itself, not the standoff. The standoff provides only mechanical positioning and support.

Q: What packaging format is used for both parts?

A: Both the ELM 1-155 and ELM 3-160 are supplied in bag packaging, suitable for bulk component handling and assembly operations.