ELM 3-20MM LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 3-20MM 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 0.790" (20.07mm) length and accommodates T1 3/4 LED packages. The part maintains Active product status and is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection. Substitute parts are identified when inventory constraints, lead time requirements, or specific application needs necessitate alternative components that maintain functional and mechanical compatibility within defined parameter tolerances.

Substiute Parts

ELM 3-20MM

Bivar Inc.In Stock: 852ELM 3-20MM Datasheet

Current PartRFQ

ELM 1-820

Bivar Inc.In Stock: 2082ELM 1-820 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELM 3-20MM is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• LED package type must be T1 3/4
• Material composition must be black PVC
• Mounting orientation must be vertical (SR VERT)
• RoHS3 compliance status must be maintained
• MSL rating must be 1 or equivalent

Allowable Variation:

• Length tolerance: ±0.03" from nominal dimension is acceptable for mechanical fit compatibility

The substitute part ELM 1-820 qualifies based on matching LED package type (T1 3/4), material (black PVC), orientation (vertical mount), and compliance certifications (ROHS3, MSL 1). The length difference of 0.030" (0.820" vs. 0.790") falls within acceptable mechanical tolerance for vertical standoff applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (ELM 3-20MM): Use the ELM 3-20MM when the exact 0.790" (20.07mm) length is specified in the design documentation. This part is Active status with full ROHS3 compliance and MSL 1 rating. Current inventory of 828 pieces supports standard procurement timelines.

Substitute Selection (ELM 1-820): The ELM 1-820 is a valid substitute when the 0.030" length increase (0.820" total) is mechanically acceptable within the application's clearance and assembly specifications. This part maintains identical material composition, LED package compatibility, and compliance certifications. Higher inventory availability (1983 pieces) may support expedited procurement requirements. Both parts are manufactured by Bivar Inc. and carry Active product status.

Compliance Verification: Both parts satisfy ROHS3 compliance requirements and MSL 1 moisture sensitivity classification. No additional environmental or regulatory constraints differentiate these components.

Frequently Asked Questions (FAQ)

Q: Can ELM 1-820 be used as a direct replacement for ELM 3-20MM?

A: ELM 1-820 is a functional substitute provided the application tolerates a 0.030" increase in standoff length. All electrical and material properties remain identical. Verify mechanical clearance in your specific PCB assembly design before implementation.

Q: What is the significance of the length difference between these parts?

A: The ELM 3-20MM measures 0.790" while ELM 1-820 measures 0.820". This 0.030" difference affects the vertical distance between the PCB surface and the LED package. Confirm that your circuit board layout and component placement accommodate this variation.

Q: Are both parts RoHS compliant?

A: Yes. Both ELM 3-20MM and ELM 1-820 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting identical environmental and regulatory standards.

Q: What LED package types do these standoffs support?

A: Both parts are designed exclusively for T1 3/4 LED packages. They are not compatible with other LED package sizes or configurations.

Q: Does packaging differ between these parts?

A: No. Both parts are supplied in Bag packaging format with identical handling and storage requirements.

Q: Which part should I select for new designs?

A: For new designs, specify the ELM 3-20MM unless mechanical constraints require the additional 0.030" height provided by ELM 1-820. Both parts carry Active product status and full compliance certifications.