MR34519MP6 Equivalent & Substitute Parts

Part Overview

The MR34519MP6 is a green circuit board indicator LED manufactured by onsemi, featuring a 5mm diffused lens with right-angle through-hole mounting. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part operates at 12V with 13mA current consumption and delivers 4mcd brightness output in a T-1 3/4 package format.

Substiute Parts

MR34519MP6

onsemiIn Stock: 1123MR34519MP6 Datasheet

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5GD

Bivar Inc.In Stock: 9735GD Datasheet

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HLMP-4740-A00B1

Broadcom LimitedIn Stock: 965HLMP-4740-A00B1 Datasheet

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HLMP-4740-A00B2

Broadcom LimitedIn Stock: 2488HLMP-4740-A00B2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MR34519MP6 is determined by the following critical parameters:

Mechanical Compatibility: Lens size (5mm, T-1 3/4), lens type (diffused), and mounting configuration (through-hole, right-angle) must match to ensure direct board-level replacement without mechanical redesign.

Optical Compatibility: Color (green) and lens transparency (diffused, tinted) must remain consistent for visual indication purposes.

Electrical Compatibility: Forward voltage (Vf), operating current, and brightness output (millicandela rating) determine circuit integration feasibility. Substitutes may operate at different voltage and current levels if the application circuit can accommodate the variation.

Compliance Status: Active product status and RoHS3 compliance are preferred for new designs and long-term availability.

The three identified substitutes—5GD, HLMP-4740-A00B1, and HLMP-4740-A00B2—share the core mechanical and optical characteristics (5mm T-1 3/4 green diffused through-hole right-angle package) but differ in electrical operating parameters and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Mechanical Replacement with Circuit Redesign:

The HLMP-4740-A00B1 and HLMP-4740-A00B2 (Broadcom Limited) provide the closest mechanical and optical match, featuring identical right-angle through-hole mounting and diffused green lens characteristics. Both parts are active products with ROHS3 compliance, ensuring long-term availability and regulatory alignment. However, these substitutes operate at 1.9V and 2mA, requiring circuit modification from the original 12V/13mA specification. The reduced brightness output (2.3mcd versus 4mcd) may necessitate application review for visibility requirements.

For Mechanical Compatibility with Higher Brightness:

The 5GD (Bivar Inc.) maintains the 5mm T-1 3/4 through-hole package with diffused lens but operates at 2.1V/20mA with significantly higher brightness (25mcd). This part is active and RoHS3 compliant. The mounting configuration is standard through-hole rather than right-angle, requiring board layout adjustment. The elevated brightness output suits applications requiring enhanced visibility.

Compliance Consideration:

All three substitutes are RoHS3 compliant and carry active product status, providing superior long-term supply chain stability compared to the obsolete MR34519MP6. The original part's RoHS non-compliance status supports migration to compliant alternatives for new production.

Frequently Asked Questions (FAQ)

Q: Can the HLMP-4740-A00B1 or HLMP-4740-A00B2 be used as direct drop-in replacements?

A: These parts share the mechanical package (5mm T-1 3/4 right-angle through-hole) and optical characteristics (green diffused lens) but operate at significantly different electrical parameters (1.9V/2mA versus 12V/13mA). Direct substitution requires circuit redesign to accommodate the lower voltage and current requirements. Board-level compatibility depends on the application's power supply architecture and brightness tolerance.

Q: What is the primary difference between the 5GD and the Broadcom HLMP-4740 series?

A: The 5GD features standard through-hole mounting (radial configuration) versus the right-angle through-hole mounting of the HLMP-4740 series. The 5GD also delivers higher brightness (25mcd) and operates at 2.1V/20mA. Mounting type selection depends on board layout constraints and available footprint space.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 5GD, HLMP-4740-A00B1, and HLMP-4740-A00B2 are all ROHS3 compliant, whereas the original MR34519MP6 is RoHS non-compliant. This compliance advantage supports regulatory requirements for new product designs and manufacturing.

Q: How do the brightness levels compare across all parts?

A: The MR34519MP6 delivers 4mcd, the HLMP-4740 series delivers 2.3mcd, and the 5GD delivers 25mcd. Application visibility requirements determine whether the reduced brightness of the Broadcom parts or the elevated brightness of the Bivar part is appropriate.

Q: What is the wavelength difference between substitutes?

A: The 5GD operates at 568nm peak wavelength, while the HLMP-4740 series operates at 565nm. Both wavelengths fall within the green spectrum and are visually indistinguishable for circuit board indicator applications.