PM3YC LED Panel Indicator - Equivalent & Substitute Parts

Part Overview

The PM3YC is a 3mm yellow LED panel indicator manufactured by Bivar Inc., designed for panel-mount applications with a clear lens and 30° viewing angle. This component operates at 2V with a maximum current of 30mA and delivers 40mcd brightness at a 590nm wavelength. The PM3YC is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

PM3YC

Bivar Inc.In Stock: 991PM3YC Datasheet

Current PartRFQ

PM3YD

Bivar Inc.In Stock: 3112PM3YD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete PM3YC is based on strict electrical and mechanical compatibility within the PM3 series. The following parameters define acceptable substitutes:

Mandatory Matching Parameters:

• Manufacturer: Bivar Inc.
• Series: PM3
• Lamp Color: Yellow
• Wavelength - Peak: 590nm
• Voltage (Vf Typ): 2V
• Current (If Max): 30mA
• Lens Size: 3mm, T-1
• Panel Cutout Shape: Round
• Panel Cutout Dimensions: 0.16" (4.06mm)
• Lens Style: Round with Domed Top

Parameters Allowed to Vary:

• Lens Color (Colorless to Yellow)
• Lens Transparency (Clear to Diffused)
• Millicandela Rating (40mcd to 20mcd)
• Viewing Angle (30° to 40°)
• Termination Style (addition of PC Pin acceptable)
• Product Status (Obsolete to Active)

The PM3YD qualifies as a substitute based on these criteria. Both components share identical electrical ratings, mechanical dimensions, and mounting specifications. Variations in lens transparency, brightness output, and viewing angle are within acceptable substitution parameters for panel indicator applications.

Parameter Comparison

Engineering Selection Recommendations

PM3YD as Primary Substitute:

The PM3YD is the designated substitute for the obsolete PM3YC. This component maintains full electrical and mechanical compatibility while offering the advantage of active product status. The PM3YD is manufactured by Bivar Inc. within the same PM3 series and shares identical voltage, current, and mechanical mounting specifications.

Compliance and Certification:

Both the PM3YC and PM3YD carry identical export control classifications (ECCN: EAR99) and harmonized tariff codes (HTSUS: 8541.41.0000). The PM3YD provides additional compliance documentation through ROHS3 compliance certification and REACH unaffected status, supporting modern regulatory requirements.

Operational Differences:

The PM3YD incorporates a diffused yellow lens compared to the PM3YC's clear colorless lens. This results in a 50% reduction in brightness output (20mcd versus 40mcd) and a 10° increase in viewing angle (40° versus 30°). These characteristics remain within acceptable parameters for standard panel indicator applications where the primary function is status indication rather than high-intensity signaling.

Procurement Advantage:

The PM3YD maintains current production status with 3050 units in stock, compared to the PM3YC's obsolete status. Selection of the PM3YD ensures long-term component availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the PM3YD directly replace the PM3YC in existing designs?

A: Yes. The PM3YD maintains identical electrical ratings (2V, 30mA), mechanical dimensions (3mm T-1 lens, 0.16" panel cutout), and mounting specifications. Both components are round domed-top LEDs in the PM3 series with 590nm yellow wavelength output.

Q: What is the impact of the diffused lens on PM3YD compared to the clear lens on PM3YC?

A: The PM3YD's diffused yellow lens produces a softer, more dispersed light output compared to the PM3YC's clear colorless lens. The PM3YD delivers 20mcd brightness with a 40° viewing angle, while the PM3YC delivers 40mcd with a 30° viewing angle. The diffused lens provides wider light distribution at reduced peak intensity.

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

A: Both components share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The PM3YD provides additional documentation through ROHS3 compliance certification and REACH unaffected status, supporting current regulatory frameworks.

Q: What is the packaging difference between PM3YC and PM3YD?

A: The PM3YC packaging is listed as unspecified. The PM3YD is supplied in bag packaging. Both components feature PC Pin termination style on the PM3YD, providing standardized connection methodology.

Q: Why is the PM3YC classified as obsolete?

A: The PM3YC has reached end-of-life status within Bivar Inc.'s product portfolio. The PM3YD represents the active continuation within the PM3 series, offering equivalent functionality with modern compliance certifications.

Q: Can I use PM3YD in applications requiring the higher brightness of PM3YC?

A: The PM3YD's 20mcd output is 50% lower than the PM3YC's 40mcd. Applications requiring the original brightness specification should evaluate whether the reduced output meets functional requirements. The PM3YD's wider 40° viewing angle may compensate for reduced peak intensity in certain panel indicator applications.

Q: Are the electrical characteristics identical between PM3YC and PM3YD?

A: Yes. Both components operate at 2V forward voltage with 30mA maximum current. Electrical performance is identical, with differences limited to optical characteristics (lens color, transparency, brightness, and viewing angle).