ELM 3-21MM LED Standoff Equivalent & Substitute Parts

Part Overview

The ELM 3-21MM is a T1 3/4 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications requiring a 0.830" (21.08mm) height specification. This active product features a black PVC construction and is RoHS3 compliant. Alternative models become necessary when specific height tolerances, inventory availability, or procurement lead times require substitution while maintaining functional equivalence within the defined parameter range.

Substiute Parts

ELM 3-21MM

Bivar Inc.In Stock: 1052ELM 3-21MM Datasheet

Current PartRFQ

ELM 1-820

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The ELM 1-820 qualifies as a parametric equivalent based on the following shared critical parameters: identical LED type (T1 3/4), identical material composition (black PVC), identical color specification (black), identical orientation (vertical mount), and identical RoHS3 compliance status. The length tolerance between the main part (0.830") and substitute (0.820") represents a dimensional variation of 0.010" (0.25mm), which falls within acceptable mechanical tolerance for LED standoff applications where the standoff height does not function as a critical dimensional constraint in the assembly. Both parts maintain identical manufacturer (Bivar Inc.), MSL rating (1 - Unlimited), and compliance certifications (RoHS3, ECCN: EAR99).

Parameter Comparison

Engineering Selection Recommendations

Both the ELM 3-21MM and ELM 1-820 maintain active product status with full RoHS3 compliance and identical environmental ratings (MSL 1). Selection between these parts should be based on specific assembly height requirements and available inventory. The ELM 3-21MM provides the nominal 0.830" dimension, while the ELM 1-820 delivers a functionally equivalent alternative at 0.820". Both parts satisfy identical regulatory and compliance frameworks (RoHS3, ECCN: EAR99, HTSUS classification).

Frequently Asked Questions (FAQ)

Q: Can the ELM 1-820 be used as a direct replacement for the ELM 3-21MM in all applications? A: The ELM 1-820 functions as a parametric equivalent for applications where the 0.010" (0.25mm) height difference does not impact assembly fit or mechanical clearance. Verify that your specific application tolerates this dimensional variation before substitution.

Q: What are the critical parameters that define substitution eligibility? A: LED type (T1 3/4), material (PVC), color (black), orientation (vertical mount), RoHS compliance status, and moisture sensitivity rating determine substitution eligibility. The length tolerance of 0.010" is the only dimensional variance between qualified substitutes.

Q: Are both parts available in the same packaging format? A: Both ELM 3-21MM and ELM 1-820 are supplied in bag packaging. Current inventory shows 1017 pcs for the ELM 3-21MM and 1983 pcs for the ELM 1-820.

Q: Do these parts share identical compliance certifications? A: Both parts comply with RoHS3 standards, carry ECCN: EAR99 classification, and maintain MSL 1 (Unlimited) moisture sensitivity ratings. HTSUS classifications differ due to manufacturing variations but do not affect functional equivalence.

Q: When should I select the ELM 1-820 over the ELM 3-21MM? A: Select the ELM 1-820 when the 0.820" height specification aligns with your mechanical tolerances, inventory availability favors this part number, or procurement lead times require sourcing from existing stock.