MPC3GT LED Panel Indicator Equivalent & Substitute Parts

Part Overview

The MPC3GT is a green LED panel indicator manufactured by Bivar Inc., designed for panel-mount applications with wire termination. This component features a 3mm T-1 lens with clear transparency, rated at 2.1V forward voltage and 30mA maximum current, delivering 40mcd luminous intensity at a 568nm peak wavelength with a 20° viewing angle.

The MPC3GT is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability for production, and support ongoing maintenance of systems utilizing this LED indicator.

Substiute Parts

MPC3GT

Bivar Inc.In Stock: 1160MPC3GT Datasheet

Current PartRFQ

MPC3GD

Bivar Inc.In Stock: 1110MPC3GD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MPC3GT is determined by strict alignment of the following critical parameters:

Electrical Compatibility: Forward voltage (Vf) and maximum current (If) must match exactly to ensure proper circuit operation without modification to current-limiting resistors or power supply specifications.

Mechanical Compatibility: Panel cutout shape, dimensions (0.24" / 6.10mm round), lens size (3mm T-1), and lens style (round with domed top) must be identical to ensure physical fit within existing panel assemblies without mechanical rework.

Optical Compatibility: Lamp color and lens color must both be green. Peak wavelength (568nm) must match to maintain consistent visual appearance and system indication standards.

Series Alignment: The part must belong to the MPC3 series to ensure design consistency and interchangeability within the product family.

The MPC3GD qualifies as a substitute based on matching electrical (2.1V, 30mA), mechanical (round 0.24" cutout, 3mm T-1 lens, domed top), optical (green lamp, green lens, 568nm wavelength), and series (MPC3) parameters. Differences in lens transparency (diffused vs. clear), millicandela rating (25mcd vs. 40mcd), viewing angle (35° vs. 20°), and termination style (PC Pin vs. wire) represent functional variations that do not prevent substitution but alter performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

MPC3GD as Substitute for MPC3GT:

The MPC3GD is an active product manufactured by Bivar Inc. and qualifies as a functional substitute based on matching electrical, mechanical, and optical core parameters. Both components share identical forward voltage (2.1V), maximum current (30mA), panel cutout dimensions (0.24" round), lens size (3mm T-1), and peak wavelength (568nm).

The MPC3GD is ROHS3 compliant and REACH unaffected, providing regulatory advantages over the obsolete MPC3GT. Both components carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications.

Functional Differences Requiring Evaluation:

The MPC3GD features a diffused lens versus the clear lens of the MPC3GT, resulting in a wider viewing angle (35° vs. 20°) and lower luminous intensity (25mcd vs. 40mcd). These optical differences alter the visual appearance and brightness characteristics of the indicator. Applications requiring the specific brightness or narrow viewing angle of the MPC3GT may require circuit-level adjustments or alternative component selection.

The MPC3GD uses PC Pin termination instead of wire termination, necessitating changes to circuit board layout and assembly procedures. Wire-terminated components require different mounting and soldering approaches than PC Pin variants.

Selection of the MPC3GD as a substitute is appropriate for applications where the diffused lens, wider viewing angle, and PC Pin termination are compatible with system requirements. Applications with strict brightness or viewing angle specifications should evaluate alternative components within the MPC3 series or other manufacturers' equivalent products.

Frequently Asked Questions (FAQ)

Q: Can the MPC3GD directly replace the MPC3GT without any circuit modifications?

A: The MPC3GD matches the electrical specifications (2.1V, 30mA) of the MPC3GT, so no changes to current-limiting resistors or power supply voltage are required. However, the termination style differs (PC Pin vs. wire), requiring changes to circuit board layout and assembly procedures. The diffused lens and different viewing angle may affect visual appearance in the application.

Q: What is the primary reason the MPC3GT is obsolete?

A: The MPC3GT is classified as obsolete by the manufacturer. The MPC3GD is the active equivalent within the MPC3 series and is recommended for new designs and component replenishment.

Q: How do the optical differences between MPC3GT and MPC3GD affect system performance?

A: The MPC3GT provides 40mcd brightness with a 20° viewing angle and clear lens, delivering a bright, focused indication. The MPC3GD provides 25mcd brightness with a 35° viewing angle and diffused lens, delivering a softer, wider-angle indication. Applications requiring high brightness or narrow viewing angles should evaluate whether the MPC3GD meets performance requirements.

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

A: Both components carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The MPC3GD is ROHS3 compliant and REACH unaffected, providing regulatory advantages over the obsolete MPC3GT. Both components have MSL rating of 1 (Unlimited).

Q: What is the impact of the termination style difference?

A: The MPC3GT uses wire termination, while the MPC3GD uses PC Pin termination. This difference requires changes to circuit board design, component placement, and assembly procedures. Wire-terminated components are typically hand-soldered or wave-soldered, while PC Pin components are designed for through-hole or surface-mount assembly processes.

Q: Can I use the MPC3GD in applications originally designed for the MPC3GT?

A: Substitution is possible if the application can accommodate the optical differences (diffused lens, 35° viewing angle, 25mcd brightness) and the termination style change (PC Pin vs. wire). Mechanical fit is identical due to matching panel cutout dimensions and lens size. Electrical compatibility is confirmed by matching voltage and current ratings.

Q: What inventory status should I consider when selecting between these components?

A: The MPC3GT has 1113 pieces in stock but is obsolete. The MPC3GD has 1087 pieces in stock and is active. For long-term component availability and future production support, the MPC3GD is the recommended choice.