ERM 1-835 LED Standoff Equivalent and Substitute Parts

Part Overview

The ERM 1-835 is an active LED standoff component manufactured by Bivar Inc., designed for 2 and 3 lead LED applications. This black PVC standoff measures 0.835" (21.21mm) in height and is part of the ERM 1 series. The product is ROHS3 compliant and carries MSL 1 rating. Substitute parts may be required due to inventory constraints, supply chain optimization, or application-specific lead time considerations.

Substiute Parts

ERM 1-835

Bivar Inc.In Stock: 1065ERM 1-835 Datasheet

Current PartRFQ

ERM 1-21MM

Bivar Inc.In Stock: 15916ERM 1-21MM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between ERM 1-835 and ERM 1-21MM is valid based on the following critical parameters that remain consistent across both parts:

Common Electrical and Mechanical Parameters:

• Identical LED configuration (2 and 3 lead LEDs)
• Identical material composition (black PVC)
• Identical manufacturer (Bivar Inc.)
• Same series designation (ERM 1)
• Identical compliance rating (ROHS3)
• Identical moisture sensitivity level (MSL 1)
• Same packaging format (Bag)

The primary difference lies in the height dimension: ERM 1-835 specifies 0.835" (21.21mm) while ERM 1-21MM specifies 0.830" (21.08mm), representing a tolerance variation of approximately 0.005" within typical manufacturing parameters for PVC standoff components in this category.

Parameter Comparison

Engineering Selection Recommendations

Both ERM 1-835 and ERM 1-21MM are active products with ROHS3 compliance and identical MSL ratings. The selection between these parts should be based on:

1. Mechanical tolerance requirements: Applications with tight height specifications below ±0.005" may require design verification for the 0.005" dimensional difference.
2. Inventory availability: ERM 1-21MM shows significantly higher inventory (15,891 pcs) compared to ERM 1-835 (1,053 pcs), making it the preferred choice for applications where the dimensional variation is acceptable.
3. Series consistency: Both parts belong to the ERM 1 series and are manufactured by Bivar Inc., ensuring manufacturing consistency and quality standards.

Frequently Asked Questions (FAQ)

Q: Can ERM 1-21MM be used as a direct replacement for ERM 1-835? A: Yes, provided your application design accommodates the 0.005" height difference (0.835" vs. 0.830"). The identical LED configuration, material, and compliance ratings support functional interchangeability.

Q: Are there any electrical differences between these parts? A: No. Both parts support the same 2 and 3 lead LED configurations with identical material properties and compliance certifications.

Q: Does the height difference affect PCB layout? A: The 0.005" dimensional difference (21.21mm vs. 21.08mm) is a tolerance variation typical of PVC molded components. Application designs with rigid height constraints should evaluate this tolerance against specific mechanical requirements.

Q: Are both parts ROHS3 compliant? A: Yes. Both ERM 1-835 and ERM 1-21MM meet ROHS3 compliance requirements and carry MSL 1 ratings for unlimited moisture sensitivity.

Q: What is the base product number significance? A: ERM 1-835 and ERM 1-21MM use different base product numbers (ERM1-8 and ERM1-2 respectively), indicating they are distinct catalog items within the ERM 1 series despite their functional equivalence.