MPR3AT LED Panel Indicator Equivalent & Substitute Parts

Part Overview

The MPR3AT is an amber LED panel indicator manufactured by Bivar Inc., designed for panel-mount applications with wire termination. This component features a 3mm T-1 lens with a domed top, rated at 2V and 30mA, delivering 40mcd at a 605nm wavelength with a 20° viewing angle. The MPR3AT is classified as obsolete, making identification of suitable substitute components essential for ongoing production and maintenance applications. The narrow 20° viewing angle and higher brightness rating (40mcd) distinguish this part within the MPR3 series.

Substiute Parts

MPR3AT

Bivar Inc.In Stock: 1155MPR3AT Datasheet

Current PartRFQ

MPR3AD

Bivar Inc.In Stock: 694MPR3AD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MPR3AT is determined by the following critical parameters that must remain constant or compatible:

Fixed Parameters (Must Match):

• Manufacturer: Bivar Inc.
• Series: MPR3
• Lamp Color: Amber
• Wavelength - Peak: 605nm
• Voltage: 2V
• Current: 30mA
• Lens Size: 3mm, T-1
• Panel Cutout Shape: Round
• Panel Cutout Dimensions: 0.24" (6.10mm)

Variable Parameters (Allowed Variation):

• Millicandela Rating: May vary based on application requirements
• Viewing Angle: May vary based on application requirements
• Lens Transparency: May vary (Clear, Diffused, or other options)
• Product Status: Active status preferred for ongoing availability
• Packaging: May differ from original specification

The MPR3AD qualifies as a substitute based on matching all fixed parameters while offering variations in brightness (25mcd vs. 40mcd), viewing angle (35° vs. 20°), and lens transparency (Diffused vs. Clear).

Parameter Comparison

Engineering Selection Recommendations

The MPR3AT is classified as obsolete, necessitating transition to active alternatives. The MPR3AD serves as the direct substitute within the MPR3 series from Bivar Inc., maintaining electrical compatibility (2V, 30mA) and mechanical fit (3mm T-1 lens, 0.24" panel cutout).

Selection Considerations:

The MPR3AD differs from the MPR3AT in three parameters: brightness (25mcd vs. 40mcd), viewing angle (35° vs. 20°), and lens transparency (Diffused vs. Clear). These differences must be evaluated against application requirements. The MPR3AD's wider 35° viewing angle and diffused lens provide broader light distribution compared to the MPR3AT's focused 20° angle and clear lens. The reduced brightness (25mcd) may require circuit adjustment if the original design relied on the 40mcd output for visibility thresholds.

The MPR3AD holds Active product status and ROHS3 compliance, supporting long-term supply chain continuity and regulatory requirements. Tray packaging is specified for the MPR3AD, differing from the original part specification.

Frequently Asked Questions (FAQ)

Q: Can the MPR3AD directly replace the MPR3AT without circuit modification?

A: Electrical parameters (2V, 30mA) are identical, enabling direct pin-level substitution. However, the reduced brightness (25mcd vs. 40mcd) and altered viewing angle (35° vs. 20°) may affect visual performance. Circuit adjustment is not required for basic functionality but may be necessary if the original design depends on specific brightness or directional characteristics.

Q: What is the significance of the lens transparency difference (Clear vs. Diffused)?

A: The MPR3AT features a clear lens, concentrating light output within the 20° viewing angle. The MPR3AD uses a diffused lens, scattering light across the wider 35° viewing angle. Clear lenses provide higher intensity in the central viewing direction, while diffused lenses distribute light more uniformly across a broader area. Application requirements determine which transparency is appropriate.

Q: Why is the MPR3AT classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The MPR3AD represents the active alternative within the same series, ensuring continued availability and support.

Q: Are there packaging differences between these parts?

A: The MPR3AT packaging is not specified in available documentation. The MPR3AD is supplied in Tray packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Does the MPR3AD meet current regulatory standards?

A: The MPR3AD is ROHS3 compliant, meeting current environmental and regulatory requirements. Compliance status for the obsolete MPR3AT is not specified.

Q: What is the mechanical compatibility between these parts?

A: Both parts share identical mechanical specifications: 3mm T-1 lens size, round domed top style, and 0.24" (6.10mm) round panel cutout dimensions. Direct mechanical substitution is supported without panel modification.