PM5RT LED Panel Indicator - Equivalent & Substitute Parts

Part Overview

The PM5RT is a panel-mount LED indicator manufactured by Bivar Inc., designed for applications requiring a red light-emitting diode with clear lens transparency. This component is a red LED indicator with a 5mm T-1 3/4 lens form factor, rated at 2.1V forward voltage and 20mA maximum current, delivering 2 millicandela at a 700nm peak wavelength with a 35° viewing angle. The PM5RT is currently listed with obsolete product status. Identifying equivalent substitutes becomes necessary when sourcing components to ensure design continuity and maintain system reliability when the original part is no longer in production.

Substiute Parts

PM5RT

Bivar Inc.In Stock: 1076PM5RT Datasheet

Current PartRFQ

PM5RD

Bivar Inc.In Stock: 1447PM5RD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM5RT requires compatibility across critical electrical and mechanical parameters. The allowed parameters for substitution are:

Electrical Parameters:

• Forward Voltage: 2.1V (Vf Typ)
• Maximum Current: 20mA (If Max)
• Peak Wavelength: 700nm
• Millicandela Rating: 2mcd

Mechanical Parameters:

• Panel Cutout Shape: Round
• Panel Cutout Dimensions: 0.25" (6.35mm)
• Lens Size: 5mm, T-1 3/4
• Lens Style: Round with Domed Top
• Lamp Color: Red
• Lens Color: Red

Product Category Parameters:

• Manufacturer: Bivar Inc.
• Series: PM5
• Type: LED

The PM5RD qualifies as a substitute because it maintains all critical electrical specifications (2.1V, 20mA, 700nm, 2mcd) and mechanical form factors (0.25" round cutout, 5mm T-1 3/4 lens, round domed style). The PM5RD is an active product, providing improved availability compared to the obsolete PM5RT.

Parameter Comparison

Engineering Selection Recommendations

The PM5RD serves as the active substitute for the obsolete PM5RT. Both components are manufactured by Bivar Inc. within the PM5 series and maintain identical electrical ratings (2.1V, 20mA, 2mcd at 700nm). The mechanical form factors are compatible for panel-mount applications with 0.25" round cutouts.

The PM5RD is designated with active product status, ensuring continued manufacturing and supplier availability. The PM5RD carries ROHS3 compliance and REACH unaffected status, providing regulatory alignment for applications requiring these certifications.

The primary difference between the PM5RT and PM5RD resides in lens transparency: the PM5RT features a clear lens, while the PM5RD features a diffused lens. Additionally, the PM5RD provides a 45° viewing angle compared to the PM5RT's 35° viewing angle. These optical characteristics remain within the same lamp color and lens color specifications.

Frequently Asked Questions (FAQ)

Q: Can the PM5RD directly replace the PM5RT in my application? A: The PM5RD is electrically and mechanically compatible with the PM5RT. Both components share identical forward voltage (2.1V), maximum current (20mA), optical intensity (2mcd), peak wavelength (700nm), and panel cutout dimensions (0.25" round). The PM5RD is the recommended substitute for the obsolete PM5RT.

Q: What is the difference between clear and diffused lens transparency in the PM5RT and PM5RD? A: The PM5RT features a clear lens, while the PM5RD features a diffused lens. This affects light distribution characteristics. The PM5RT concentrates light with a 35° viewing angle, whereas the PM5RD disperses light across a wider 45° viewing angle. Application requirements for light distribution and visibility angle determine the appropriate choice.

Q: Does the PM5RD meet regulatory requirements? A: The PM5RD is certified as ROHS3 compliant and REACH unaffected. Applications requiring these regulatory certifications should specify the PM5RD. The PM5RT regulatory status is not documented in available specifications.

Q: Are the PM5RT and PM5RD compatible with the same panel cutouts? A: Yes. Both components require a 0.25" (6.35mm) round panel cutout and feature identical 5mm T-1 3/4 lens form factors with round domed tops. Physical installation dimensions are identical.

Q: What is the inventory status of these components? A: The PM5RT (obsolete status) has 1038 pieces listed as new original inventory. The PM5RD (active status) has 1402 pieces listed as new original inventory. For new designs or production requiring long-term supply assurance, the PM5RD is the appropriate selection.