ERM 1-840 Equivalent & Substitute Parts

Part Overview

The ERM 1-840 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 0.840" (21.34mm) standoff height, suitable for LED assembly integration 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 electrical and mechanical parameters align within the allowed tolerance specifications for this LED standoff category.

Substiute Parts

ERM 1-840

Bivar Inc.In Stock: 931ERM 1-840 Datasheet

Current PartRFQ

ERM 1-21MM

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERM 1-840 are identified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Substitution Criteria:

• LED Configuration: 2 and 3 Lead LEDs (universal compatibility maintained)
• Material: Black PVC (consistent material specification)
• Mounting Type: Vertical orientation (same mounting application)
• Series: ERM 1 (same product family)
• RoHS Status: ROHS3 Compliant (regulatory alignment)
• Moisture Sensitivity Level: 1 (Unlimited) (identical environmental protection)
• Packaging: Bag (same delivery format)

Secondary Consideration:

• Standoff Height: Nominal length variation within the ERM 1 series specifications (0.830" to 0.840")

The ERM 1-21MM qualifies as a parametric equivalent based on these criteria. The length differential of 0.010" (0.26mm) represents a minor dimensional variation within the mechanical tolerance envelope of the ERM 1 series for universal LED standoff applications.

Parameter Comparison

Engineering Selection Recommendations

ERM 1-840 Primary Selection: The ERM 1-840 is recommended for applications requiring the specified 0.840" (21.34mm) standoff height. This part maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity protection (MSL 1). Current inventory of 917 pieces supports immediate procurement requirements.

ERM 1-21MM Substitute Selection: The ERM 1-21MM serves as a parametric equivalent for applications where a 0.830" (21.08mm) standoff height is acceptable within design tolerances. This substitute maintains identical electrical and environmental compliance specifications. Significantly higher inventory availability (15,891 pieces) supports extended production runs and supply chain continuity. Both parts share identical RoHS3 compliance and MSL 1 ratings, ensuring regulatory and environmental performance parity.

Selection Basis:

• Both parts are Active status products from the same manufacturer
• Regulatory compliance (ROHS3) is maintained across both options
• Environmental protection ratings (MSL 1) are equivalent
• Material composition and mounting configuration are identical
• Substitution is valid based on mechanical tolerance compatibility within the ERM 1 series specification envelope

Frequently Asked Questions (FAQ)

Q: What is the primary difference between ERM 1-840 and ERM 1-21MM?

A: The standoff height differs by 0.010" (0.26mm). The ERM 1-840 provides 0.840" (21.34mm) height, while the ERM 1-21MM provides 0.830" (21.08mm) height. All other electrical, material, and compliance specifications are identical.

Q: Can ERM 1-21MM be used in place of ERM 1-840?

A: Yes, provided the application design tolerates the 0.010" (0.26mm) height reduction. Both parts support 2 and 3 Lead LED configurations with identical vertical mounting, material composition, and regulatory compliance.

Q: Are both parts ROHS3 compliant?

A: Yes. Both ERM 1-840 and ERM 1-21MM are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity protection.

Q: What is the packaging format for both parts?

A: Both parts are supplied in Bag packaging format.

Q: Which part has better inventory availability?

A: The ERM 1-21MM has significantly higher inventory (15,891 pieces) compared to the ERM 1-840 (917 pieces), supporting extended production schedules and supply chain flexibility.

Q: Are these parts from the same manufacturer?

A: Yes. Both ERM 1-840 and ERM 1-21MM are manufactured by Bivar Inc. and belong to the ERM 1 series.

Q: What LED configurations do these standoffs support?

A: Both parts support 2 and 3 Lead LED configurations with universal compatibility.

Q: What material are these standoffs constructed from?

A: Both parts are constructed from black PVC material.