ELM 5-3.5MM LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 5-3.5MM is a T1 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a 3.56mm length. This component is classified as an active product with ROHS3 compliance and unlimited moisture sensitivity rating. LED standoffs serve as mechanical and electrical interfaces for T1 LED packages in circuit board assemblies. Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative components that maintain functional compatibility within specified parameter tolerances.

Substiute Parts

ELM 5-3.5MM

Bivar Inc.In Stock: 1016ELM 5-3.5MM Datasheet

Current PartRFQ

ELM 4-145

Bivar Inc.In Stock: 6681ELM 4-145 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELM 5-3.5MM is determined by strict parameter matching across the following critical dimensions:

Mandatory Matching Parameters:

• LED Type: T1 (physical form factor compatibility)
• Material: Black PVC (mechanical and environmental properties)
• Mounting Orientation: Vertical (assembly configuration)
• RoHS Status: ROHS3 Compliant (regulatory requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (storage compatibility)

Allowable Variation:

• Length: Within tolerance range of 0.140" to 0.145" (3.56mm to 3.68mm) for vertical standoff applications

The substitute part ELM 4-145 meets all mandatory parameters and falls within the allowable length tolerance, making it functionally equivalent for applications where the 0.005" (0.12mm) height differential does not impact circuit board clearance or LED positioning requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (ELM 5-3.5MM): Select the ELM 5-3.5MM when the specified 0.140" (3.56mm) length is a design requirement and inventory availability permits standard lead times. This part maintains active product status with ROHS3 compliance and unlimited moisture sensitivity rating, suitable for standard storage and handling protocols.

Substitute Part Selection (ELM 4-145): The ELM 4-145 is functionally equivalent and may be selected when the ELM 5-3.5MM is unavailable or when accelerated delivery is required. The 0.005" (0.12mm) length increase does not affect compliance certifications or material properties. Selection of this substitute requires verification that the additional height does not violate circuit board clearance specifications or LED positioning tolerances in the target application.

Both parts carry identical RoHS3 compliance and MSL ratings, ensuring equivalent environmental and regulatory performance.

Frequently Asked Questions (FAQ)

Q: What determines if ELM 4-145 can replace ELM 5-3.5MM in my application?

A: The ELM 4-145 is a functional equivalent based on matching LED type (T1), material (Black PVC), mounting orientation (Vertical), and compliance certifications (ROHS3, MSL 1). The length difference of 0.005" (0.12mm) must not violate your circuit board clearance or LED positioning requirements.

Q: Are there any electrical differences between these parts?

A: No electrical parameters are specified for either part in the provided data. Both are mechanical standoff components for T1 LED packages. Electrical compatibility is determined by the LED package itself, not the standoff.

Q: Do both parts have the same storage requirements?

A: Yes. Both ELM 5-3.5MM and ELM 4-145 carry Moisture Sensitivity Level 1 (Unlimited), indicating no special storage or handling requirements beyond standard component handling practices.

Q: Can I use ELM 4-145 if my design specifies ELM 5-3.5MM?

A: Substitution is permissible only if the 0.005" (0.12mm) height increase does not impact your circuit board layout, LED alignment, or mechanical clearance specifications. Design verification is required before implementation.

Q: Are both parts available in the same packaging format?

A: Yes. Both ELM 5-3.5MM and ELM 4-145 are supplied in Bag packaging, ensuring consistent handling and inventory management protocols.

Q: What is the difference between the ELM 5 and ELM 4 series designations?

A: The series designation reflects the base product number classification (ELM5-3 versus ELM4-1). Both series contain T1 LED standoffs in Black PVC with identical compliance and material specifications. The series distinction does not indicate functional or performance differences relevant to substitution decisions.