MR34509MP6 Equivalent & Substitute Parts

Part Overview

The MR34509MP6 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 original design operates at 5V with 12mA current and delivers 4mcd brightness output in a T-1 3/4 package format.

Substiute Parts

MR34509MP6

onsemiIn Stock: 950MR34509MP6 Datasheet

Current PartRFQ

5GD

Bivar Inc.In Stock: 9735GD Datasheet

SimilarRFQ

HLMP-4740-A00B1

Broadcom LimitedIn Stock: 965HLMP-4740-A00B1 Datasheet

SimilarRFQ

HLMP-4740-A00B2

Broadcom LimitedIn Stock: 2488HLMP-4740-A00B2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MR34509MP6 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Color: Green
• Lens Type: Diffused, Tinted
• Lens Size: 5mm, T-1 3/4
• Mounting Type: Through Hole, Right Angle
• Configuration: Single

Allowable Parameter Variations:

• Voltage Rating: May differ; circuit design must accommodate alternative forward voltage
• Current: May differ; circuit design must accommodate alternative test current
• Millicandela Rating: May differ; brightness output variation acceptable within application tolerance
• Wavelength - Peak: May differ within green spectrum range

The three identified substitutes meet all mandatory matching criteria while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

HLMP-4740-A00B1 and HLMP-4740-A00B2 (Broadcom Limited): These parts are functionally equivalent substitutes with active product status and ROHS3 compliance. Both feature identical electrical and optical specifications. The primary consideration is circuit redesign to accommodate the reduced forward voltage (1.9V versus 5V) and lower test current (2mA versus 12mA). The lower brightness output (2.3mcd versus 4mcd) may require application assessment. HLMP-4740-A00B2 offers higher inventory availability (2400 units).

5GD (Bivar Inc.): This part meets all mandatory mechanical and optical criteria with active product status and ROHS3 compliance. The forward voltage (2.1V) and test current (20mA) differ from the original specification, requiring circuit redesign. The significantly higher brightness output (25mcd) may exceed application requirements. The mounting type is listed as through-hole without right-angle specification, requiring mechanical verification.

All three substitutes provide improved compliance certifications compared to the obsolete RoHS non-compliant original part.

Frequently Asked Questions (FAQ)

Q: Can HLMP-4740-A00B1 and HLMP-4740-A00B2 be used interchangeably? A: Yes. Both parts share identical electrical specifications (1.9V, 2mA), optical characteristics (2.3mcd, 565nm peak wavelength), and mechanical form factors. HLMP-4740-A00B2 is preferred for new designs due to higher inventory availability.

Q: What circuit modifications are required when substituting with Broadcom HLMP-4740 series? A: The forward voltage reduction from 5V to 1.9V and current reduction from 12mA to 2mA necessitate recalculation of series resistor values and power supply considerations. The brightness reduction from 4mcd to 2.3mcd should be evaluated against application visibility requirements.

Q: Is the 5GD suitable as a direct replacement? A: The 5GD meets mechanical and optical criteria but requires circuit redesign due to different electrical parameters (2.1V forward voltage, 20mA test current). The mounting type specification requires verification to confirm right-angle orientation compatibility.

Q: Are all substitute parts RoHS compliant? A: Yes. HLMP-4740-A00B1, HLMP-4740-A00B2, and 5GD are all ROHS3 compliant, providing improved environmental compliance compared to the RoHS non-compliant original MR34509MP6.

Q: What is the primary reason for substitution? A: The MR34509MP6 is classified as obsolete. All identified substitutes maintain active product status, ensuring long-term availability and supply chain continuity.