ERM 1-855 Equivalent & Substitute Parts

Part Overview

The ERM 1-855 is a 2 and 3 Lead LED Standoff manufactured by Bivar Inc., designed for vertical mounting applications with universal compatibility. This component features a black PVC construction with a 0.855" (21.72mm) standoff height, suitable for LED assembly and positioning in electronic equipment. The part maintains Active product status and is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection. Substitute parts are identified when equivalent functional performance can be achieved through alternative part numbers within the same product series while maintaining critical mechanical and electrical specifications.

Substiute Parts

ERM 1-855

Bivar Inc.In Stock: 974ERM 1-855 Datasheet

Current PartRFQ

ERM 1-21MM

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERM 1-855 is determined by the following critical parameters:

Primary Substitution Criteria:

• Manufacturer: Bivar Inc. (same manufacturer required)
• Series: ERM 1 (same product series required)
• LED Configuration: 2 and 3 Lead LEDs (same lead count compatibility required)
• Material: Black PVC (same material composition required)
• Mounting Type: Vertical (same orientation required)
• RoHS Status: ROHS3 Compliant (same compliance level required)
• Moisture Sensitivity Level: 1 (Unlimited) (same MSL rating required)

Allowable Variation:

• Standoff Height: Mechanical dimension tolerance within the ERM 1 series specification range

The ERM 1-21MM qualifies as a parametric equivalent substitute based on matching all primary criteria. The standoff height variation (0.830" vs 0.855") represents a mechanical dimension within the acceptable tolerance range for this product category and series.

Parameter Comparison

Engineering Selection Recommendations

Both the ERM 1-855 and ERM 1-21MM maintain Active product status within the Bivar Inc. ERM 1 series. Both components are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental protection and regulatory compliance for industrial and commercial applications.

The ERM 1-21MM represents a direct parametric equivalent for applications where the 0.025" (0.64mm) height differential between 0.855" and 0.830" standoff lengths does not impact mechanical assembly or electrical performance. Component selection should be based on specific mechanical clearance requirements and PCB layout constraints within the target application.

Frequently Asked Questions (FAQ)

Q: Can ERM 1-21MM be used as a direct replacement for ERM 1-855?

A: The ERM 1-21MM qualifies as a parametric equivalent substitute. Both parts share identical LED configuration, material composition, mounting orientation, and compliance certifications. The standoff height difference of 0.025" (0.64mm) must be evaluated against specific application mechanical requirements.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution within the ERM 1 series requires matching: manufacturer (Bivar Inc.), LED lead configuration (2 and 3 Lead), material (Black PVC), mounting type (Vertical), RoHS compliance level (ROHS3), and MSL rating (1 - Unlimited). Standoff height represents the allowable variable parameter within this product category.

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

A: Yes. Both ERM 1-855 and ERM 1-21MM are supplied in Bag packaging, ensuring consistent handling and storage requirements.

Q: Do both parts carry the same regulatory compliance certifications?

A: Confirmed. Both components are ROHS3 compliant with MSL 1 (Unlimited) ratings, meeting identical environmental and moisture sensitivity standards.

Q: What is the mechanical dimension tolerance between these two parts?

A: The standoff height difference is 0.025" (0.64mm), with ERM 1-855 at 0.855" (21.72mm) and ERM 1-21MM at 0.830" (21.08mm). This variation must be assessed within the context of specific PCB layout and mechanical assembly clearances.