PM3AT LED Panel Indicator Equivalent & Substitute Parts

Part Overview

The PM3AT is an amber LED panel indicator manufactured by Bivar Inc., designed for panel-mount applications with wire termination. This component is classified as Obsolete product status. The PM3AT features a 3mm T-1 lens with clear transparency, 605nm peak wavelength, and operates at 2V with 30mA maximum current. Due to its obsolete classification, identifying equivalent substitute parts is necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

PM3AT

Bivar Inc.In Stock: 1131PM3AT Datasheet

Current PartRFQ

PM3ADW12.0

Bivar Inc.In Stock: 1031PM3ADW12.0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM3AT is determined by the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: Bivar Inc.
• Series: PM3
• Lamp Color: Amber
• Voltage: 2V
• Current: 30mA
• Wavelength - Peak: 605nm
• Lens Size: 3mm, T-1
• Panel Cutout Dimensions: 0.16" (4.06mm)

Allowable Variation Parameters:

• Lens Transparency (Clear to Diffused)
• Millicandela Rating (40mcd to 25mcd)
• Viewing Angle (30° to 40°)
• Termination Style (wire lead configurations)

The substitute part PM3ADW12.0 maintains all mandatory matching parameters while introducing allowable variations in lens transparency, brightness output, and viewing angle characteristics. Both components share identical electrical specifications (2V, 30mA) and mechanical mounting requirements (0.16" panel cutout, 3mm T-1 lens form factor).

Parameter Comparison

Engineering Selection Recommendations

PM3ADW12.0 as Primary Substitute:

The PM3ADW12.0 is the designated substitute for the obsolete PM3AT. This component maintains full electrical and mechanical compatibility while offering the advantage of Active product status. The PM3ADW12.0 is ROHS3 Compliant, providing regulatory compliance for current manufacturing standards.

Functional Differences:

The PM3ADW12.0 introduces three allowable parameter variations:

1. Lens Transparency: Changes from Clear to Diffused, resulting in broader light distribution characteristics
2. Millicandela Rating: Reduces from 40mcd to 25mcd, representing a 37.5% decrease in peak luminous intensity
3. Viewing Angle: Increases from 30° to 40°, providing wider angular light distribution
4. Termination: Includes 12-inch (304.80mm) wire leads instead of direct panel mount configuration

Compliance Status:

Both components share identical Moisture Sensitivity Level (MSL 1 - Unlimited), ECCN (EAR99), and HTSUS (8541.41.0000) classifications. The PM3ADW12.0 adds ROHS3 Compliance certification, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can PM3ADW12.0 directly replace PM3AT in existing designs?

A: Direct mechanical replacement requires panel cutout compatibility verification. Both components use identical 0.16" (4.06mm) round panel cutouts. However, the PM3ADW12.0 includes 12-inch wire leads, whereas the PM3AT uses direct panel mount termination. Wire lead routing and strain relief must be accommodated in the application.

Q: What is the impact of the lens transparency change from Clear to Diffused?

A: The diffused lens in PM3ADW12.0 scatters light over a wider area, reducing peak brightness concentration while improving visibility across a broader viewing angle (40° versus 30°). Applications requiring concentrated light output in a narrow viewing angle may require optical design review.

Q: Does the 15mcd brightness reduction affect circuit operation?

A: Both components operate at identical electrical specifications (2V, 30mA). The brightness reduction from 40mcd to 25mcd is a photometric characteristic only and does not affect circuit current draw, voltage requirements, or electrical compatibility. Visual perception changes depend on application ambient lighting conditions and viewing distance.

Q: Are there any packaging differences between PM3AT and PM3ADW12.0?

A: PM3AT packaging information is not specified in available documentation. PM3ADW12.0 is supplied in Bag packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: What is the significance of PM3ADW12.0 being ROHS3 Compliant?

A: ROHS3 Compliance indicates the component meets current Restriction of Hazardous Substances regulations. This certification is required for many commercial and industrial applications, particularly in markets with environmental compliance mandates. The obsolete PM3AT does not carry this certification.

Q: Can PM3ADW12.0 be used in applications originally designed for PM3AT?

A: Substitution is valid for applications where the allowable parameter variations (diffused lens, 25mcd output, 40° viewing angle, and wire lead termination) are compatible with system requirements. Optical performance, mechanical integration, and wire routing must be evaluated for each specific application.