MR37519MP6 Equivalent & Substitute Parts

Part Overview

The MR37519MP6 is a LED Circuit Board Indicator manufactured by onsemi, featuring a single red diffused lens in a 5mm T-1 3/4 through-hole right-angle package. This component is designed for 12V applications with a 13mA operating current and 4mcd brightness rating. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

MR37519MP6

onsemiIn Stock: 1194MR37519MP6 Datasheet

Current PartRFQ

HLMP-4700-C00B2

Broadcom LimitedIn Stock: 2092HLMP-4700-C00B2 Datasheet

SimilarRFQ

HLMP-D150-C00B2

Broadcom LimitedIn Stock: 2902HLMP-D150-C00B2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MR37519MP6 are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

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

Secondary Considerations:

• Voltage Rating and Current: Substitute parts operate at lower voltage and current levels (1.6V–1.7V, 1mA–2mA) compared to the original 12V/13mA specification. Circuit design must accommodate these electrical differences through appropriate current-limiting resistor selection.
• Brightness: Substitute parts provide comparable or slightly lower millicandela ratings (2.3mcd–3mcd versus 4mcd).
• Product Status: All identified substitutes are active products with current manufacturing support.
• Compliance: Substitute parts meet ROHS3 compliance, addressing the non-compliant status of the original component.

Parameter Comparison

Engineering Selection Recommendations

HLMP-D150-C00B2 is the primary substitute for the MR37519MP6. This part maintains mechanical compatibility with identical lens size (5mm, T-1 3/4) and lens style (Round with Domed Top), ensuring direct physical fit in existing PCB layouts. The HLMP-D150-C00B2 is an active product with ROHS3 compliance, addressing the obsolescence and regulatory status of the original component. Circuit redesign is required to accommodate the reduced voltage rating (1.6V versus 12V) and current (1mA versus 13mA).

HLMP-4700-C00B2 serves as a secondary substitute when mechanical constraints permit. While this part shares the same mounting type and color specification, it lacks documented lens style and size parameters. This part is suitable for applications where the exact lens geometry is not critical to system performance. ROHS3 compliance and active product status are maintained.

Both substitutes are manufactured by Broadcom Limited and carry identical REACH and ECCN classifications as the original component, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can HLMP-D150-C00B2 be used as a direct replacement for MR37519MP6?

A: HLMP-D150-C00B2 provides mechanical compatibility due to matching lens size (5mm, T-1 3/4) and lens style (Round with Domed Top). However, electrical circuit redesign is mandatory. The substitute operates at 1.6V/1mA versus the original 12V/13mA, requiring modification of current-limiting resistor values and voltage supply considerations.

Q: What are the key differences between the two substitute parts?

A: HLMP-D150-C00B2 maintains full mechanical specifications including lens size and style documentation. HLMP-4700-C00B2 provides equivalent electrical and color characteristics but lacks documented lens geometry parameters. Selection depends on whether exact lens dimensions are required for your application.

Q: Why do the substitute parts have lower voltage and current ratings?

A: The substitute parts are designed for lower-voltage applications typical of modern LED indicator circuits. The original MR37519MP6 was designed for 12V systems. Substitutes require appropriate current-limiting resistor selection based on your actual supply voltage to achieve comparable brightness levels.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both HLMP-D150-C00B2 and HLMP-4700-C00B2 are ROHS3 compliant, addressing the non-compliant status of the obsolete MR37519MP6. This ensures compatibility with current manufacturing and procurement standards.

Q: What is the brightness difference between the original and substitute parts?

A: The original MR37519MP6 provides 4mcd brightness. HLMP-D150-C00B2 provides 3mcd, and HLMP-4700-C00B2 provides 2.3mcd. Brightness differences are within typical tolerance ranges for LED indicator applications and are not perceptible in most visual applications.

Q: Can both substitutes be used interchangeably in the same circuit?

A: No. While both are red diffused LEDs with right-angle through-hole mounting, HLMP-D150-C00B2 is recommended for applications requiring exact lens geometry matching. HLMP-4700-C00B2 is suitable only when lens specifications are not critical. Verify mechanical fit and optical requirements before selection.