ELM 3-155 LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 3-155 is a T1 3/4 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a 0.155" (3.94mm) length specification. This component is constructed from black PVC material and accommodates standard 5MM LED configurations with three leads. The part maintains Active product status and is RoHS3 compliant, making it suitable for current production environments. Substitute parts are identified when equivalent functional performance can be achieved through alternative length specifications within the same product series while maintaining all other critical parameters.

Substiute Parts

ELM 3-155

Bivar Inc.In Stock: 787ELM 3-155 Datasheet

Current PartRFQ

ELM 3-160

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the ELM 3 series is determined by the following critical parameters that must remain constant:

• Manufacturer: Bivar Inc. (series continuity)
• LED Type: T1 3/4 (form factor and mounting interface)
• Material: Black PVC (mechanical and environmental properties)
• Configuration: Vertical mount, single row, 3-lead (electrical and mechanical interface)
• Packaging: Bag (handling and inventory consistency)
• Compliance: RoHS3 and MSL 1 ratings (regulatory and environmental requirements)

The Length specification is the primary variable parameter that defines substitute relationships. The ELM 3-155 (0.155" length) is substitutable with the ELM 3-160 (0.160" length) when application requirements permit a 0.005" (0.127mm) increase in standoff height. This dimensional tolerance must be verified against PCB layout, component clearance, and assembly specifications before substitution.

Parameter Comparison

Engineering Selection Recommendations

Both the ELM 3-155 and ELM 3-160 maintain Active product status with full RoHS3 compliance and MSL 1 ratings, ensuring regulatory alignment and long-term supply continuity. Selection between these parts is determined solely by the dimensional requirement for standoff height.

ELM 3-155 is the primary specification when a 0.155" (3.94mm) standoff height is required for PCB assembly clearance, component spacing, or mechanical interface specifications.

ELM 3-160 serves as a substitute when a 0.160" (4.06mm) standoff height is acceptable or required, providing an additional 0.005" (0.127mm) of vertical clearance. This substitution is valid only when the increased height does not conflict with enclosure constraints, component proximity, or assembly tooling specifications.

Both parts are manufactured from identical material composition and maintain equivalent electrical and mechanical performance characteristics within their respective length specifications.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between ELM 3-155 and ELM 3-160?

A: The parts are identical except for length. ELM 3-155 measures 0.155" (3.94mm), while ELM 3-160 measures 0.160" (4.06mm). This 0.005" difference affects PCB standoff height only.

Q: Can ELM 3-160 be used in place of ELM 3-155?

A: Substitution is valid only when the increased standoff height of 0.005" does not violate PCB layout constraints, component clearance requirements, or assembly specifications. Dimensional verification against the application is required.

Q: Are both parts RoHS3 compliant?

A: Yes. Both ELM 3-155 and ELM 3-160 are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the packaging format for these parts?

A: Both parts are supplied in Bag packaging for standard component handling and inventory management.

Q: Are these parts still in active production?

A: Yes. Both ELM 3-155 and ELM 3-160 maintain Active product status with Bivar Inc.

Q: What certifications apply to these standoffs?

A: Both parts are classified under ECCN EAR99 and HTSUS code 3926.90.9985, with RoHS3 compliance and MSL 1 ratings.