PM3RTW12.0 Equivalent & Substitute Parts

Part Overview

The PM3RTW12.0 is a panel-mounted LED indicator manufactured by Bivar Inc., featuring a red clear lens with 30° viewing angle, 2.1V forward voltage, and 20mA maximum current rating. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part is supplied with 12-inch wire leads for direct panel integration.

Substiute Parts

PM3RTW12.0

Bivar Inc.In Stock: 984PM3RTW12.0 Datasheet

Current PartRFQ

PM3RDW12.0

Bivar Inc.In Stock: 2033PM3RDW12.0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM3RTW12.0 is based on electrical and mechanical compatibility within the PM3 series from Bivar Inc. The following parameters must remain constant for functional equivalence:

• Manufacturer and series consistency (Bivar Inc., PM3 series)
• Electrical ratings: 2.1V forward voltage and 20mA maximum current
• Mechanical form factor: 3mm T-1 lens size with round domed top
• Panel integration: 0.16" (4.06mm) round cutout
• Termination: Wire leads with 12-inch length
• Wavelength: 700nm peak (red spectrum)
• Moisture sensitivity: MSL 1 (Unlimited)

The PM3RDW12.0 qualifies as a substitute based on these criteria. Variations in lens transparency (clear versus diffused) and viewing angle (30° versus 40°) represent the primary differences between the main part and substitute, with both parameters falling within acceptable substitution parameters for this product category.

Parameter Comparison

Engineering Selection Recommendations

The PM3RDW12.0 serves as the active substitute for the obsolete PM3RTW12.0. Selection of the substitute part is supported by the following factors:

Product Status: The PM3RDW12.0 maintains active product status with Bivar Inc., ensuring ongoing availability and supply chain continuity. The main part PM3RTW12.0 is classified as obsolete.

Electrical Compatibility: Both parts operate at identical electrical specifications (2.1V forward voltage, 20mA maximum current), ensuring direct functional replacement in existing circuit designs without modification to current-limiting resistor values or power supply configurations.

Mechanical Compatibility: Both parts share identical mechanical form factors, panel cutout dimensions, and wire lead termination specifications, enabling direct physical substitution in existing panel assemblies without mechanical redesign.

Compliance and Certifications: The PM3RDW12.0 is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. Both parts carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications.

Operational Differences: The primary differences between the main part and substitute are lens transparency (clear versus diffused) and viewing angle (30° versus 40°). The diffused lens of the substitute provides a wider viewing angle, which may enhance visibility in certain applications. The millicandela rating difference (2.5mcd versus 2mcd) reflects the optical characteristics of the diffused lens.

Frequently Asked Questions (FAQ)

Q: Can the PM3RDW12.0 directly replace the PM3RTW12.0 in existing designs?

A: Yes. Both parts share identical electrical ratings (2.1V, 20mA), mechanical form factors (3mm T-1 lens, 0.16" panel cutout), and wire lead termination (12 inches). No circuit modifications are required for substitution.

Q: What is the difference between the clear lens (PM3RTW12.0) and diffused lens (PM3RDW12.0)?

A: The PM3RTW12.0 features a clear lens with a 30° viewing angle and 2.5mcd brightness rating. The PM3RDW12.0 features a diffused lens with a 40° viewing angle and 2mcd brightness rating. The diffused lens provides a wider viewing angle at the expense of slightly reduced peak brightness.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The PM3RDW12.0 is ROHS3 compliant and REACH unaffected, meeting current regulatory standards.

Q: What is the inventory status of these parts?

A: The PM3RTW12.0 (obsolete) has 874 pieces in stock. The PM3RDW12.0 (active) has 2011 pieces in stock, providing greater availability for new procurement.

Q: Will the wider viewing angle of the PM3RDW12.0 affect my application?

A: The 40° viewing angle of the PM3RDW12.0 is wider than the 30° angle of the PM3RTW12.0. This may improve visibility from off-axis positions. Applications requiring a narrower viewing angle should evaluate the optical characteristics of the diffused lens in their specific mounting configuration.

Q: Are the wire lead lengths identical?

A: Yes. Both parts are supplied with 12-inch (304.80mm) wire leads, ensuring identical termination length for panel integration.

Q: What is the moisture sensitivity level for both parts?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.