MR34519MP7 Equivalent & Substitute Parts

Part Overview

The MR34519MP7 is a green LED circuit board indicator manufactured by onsemi, designed for 12V applications with a 13mA operating current. This component features a 5mm diffused, tinted lens in a through-hole, right-angle configuration. The part is currently obsolete, making identification of suitable substitutes essential for ongoing maintenance, repair, and legacy system support. The obsolete status necessitates evaluation of active alternative components that maintain functional compatibility with the original circuit design parameters.

Substiute Parts

MR34519MP7

onsemiIn Stock: 979MR34519MP7 Datasheet

Current PartRFQ

5GD

Bivar Inc.In Stock: 9735GD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MR34519MP7 is determined by the following critical parameters:

• Lens Size & Style: 5mm, T-1 3/4 form factor with round domed top
• Color & Optical Properties: Green diffused lens
• Mounting Configuration: Through-hole design
• Electrical Compatibility: Forward voltage and current characteristics suitable for 12V circuit integration
• Compliance Status: RoHS compliance for modern applications

The substitute part 5GD from Bivar Inc. shares the same physical form factor (5mm T-1 3/4 through-hole), green color, diffused lens type, and round domed top configuration. Both components are designed for through-hole PCB mounting and provide green indication functionality. The 5GD is an active product with RoHS3 compliance, making it suitable for applications requiring current regulatory adherence.

Parameter Comparison

Engineering Selection Recommendations

The 5GD from Bivar Inc. is the identified substitute for the obsolete MR34519MP7. Selection of this alternative is based on:

• Physical Compatibility: Identical 5mm T-1 3/4 through-hole form factor with round domed top lens ensures direct PCB mounting compatibility
• Optical Compatibility: Both components provide green diffused indication with comparable viewing characteristics
• Product Status: The 5GD is an active product, ensuring ongoing availability and supply chain continuity
• Regulatory Compliance: The 5GD meets ROHS3 compliance requirements, suitable for applications subject to current environmental regulations
• Reliability: Both components share MSL 1 (Unlimited) moisture sensitivity rating, indicating equivalent environmental performance

Circuit designers must account for the electrical differences when implementing the 5GD as a substitute. The 5GD operates at a forward voltage of 2.1V with a test current of 20mA, differing from the MR34519MP7's 12V rating and 13mA current. Existing series resistor values in the circuit must be recalculated to accommodate the 5GD's lower forward voltage and higher test current specifications.

Frequently Asked Questions (FAQ)

Q: Can the 5GD be used as a direct drop-in replacement for the MR34519MP7?

A: The 5GD matches the physical form factor and mounting configuration of the MR34519MP7, allowing direct PCB placement. However, circuit modifications are required. The 5GD's forward voltage (2.1V) and test current (20mA) differ from the original part's specifications, necessitating recalculation of series resistor values to maintain proper circuit operation.

Q: What are the key physical compatibility factors?

A: Both components share the 5mm T-1 3/4 through-hole package with round domed top lens and green diffused optical properties. These parameters ensure mechanical and optical compatibility in the PCB assembly.

Q: How do the brightness levels compare?

A: The 5GD provides 25mcd brightness compared to the MR34519MP7's 4mcd rating. This higher brightness may be suitable for applications requiring increased visibility, though circuit design must account for the different current requirements.

Q: What compliance advantages does the 5GD offer?

A: The 5GD is ROHS3 compliant and maintains active product status, ensuring regulatory adherence and long-term supply availability. The MR34519MP7 is obsolete and RoHS non-compliant, making the 5GD preferable for new designs and systems requiring current environmental standards compliance.

Q: Are there any environmental or reliability differences?

A: Both components share identical MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent environmental performance and reliability characteristics in standard operating conditions.