MR37509MP6 Equivalent & Substitute Parts

Part Overview

The MR37509MP6 is a 5mm red diffused LED circuit board indicator manufactured by onsemi, designed for through-hole, right-angle mounting applications. This component operates at 5V with a 10mA current rating and delivers 4 millicandela of luminous intensity. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support, design updates, and inventory management.

Substiute Parts

MR37509MP6

onsemiIn Stock: 1103MR37509MP6 Datasheet

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HLMP-4700-C00B2

Broadcom LimitedIn Stock: 2092HLMP-4700-C00B2 Datasheet

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HLMP-D150-C00B2

Broadcom LimitedIn Stock: 2902HLMP-D150-C00B2 Datasheet

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SSF-LXH100MID-5V

Lumex Opto/Components Inc.In Stock: 901SSF-LXH100MID-5V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MR37509MP6 are identified based on the following critical parameters that determine functional compatibility:

• Color: Red
• Configuration: Single LED
• Lens Type: Diffused, Tinted
• Lens Size: 5mm, T-1 3/4
• Mounting Type: Through Hole, Right Angle
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts listed below maintain these core mechanical and optical characteristics. Variations in voltage rating, current consumption, and luminous intensity are acceptable within the constraints of circuit design and application requirements. All substitute parts are manufactured by Broadcom Limited or Lumex Opto/Components Inc. and carry active product status with current RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

HLMP-D150-C00B2 (Broadcom Limited) provides the closest mechanical and optical match to the MR37509MP6. This part maintains identical lens style (round with domed top), lens size (5mm, T-1 3/4), and mounting configuration (through-hole, right-angle). The HLMP-D150-C00B2 operates at 1.6V with 1mA current and delivers 3mcd luminous intensity. This part carries active product status and ROHS3 compliance, making it suitable for new designs and production environments requiring regulatory adherence.

SSF-LXH100MID-5V (Lumex Opto/Components Inc.) maintains the original 5V voltage rating and similar current consumption profile (12mA versus 10mA). This part also features the round domed-top lens style and 5mm T-1 3/4 form factor. The SSF-LXH100MID-5V delivers higher luminous intensity (20mcd) and is active with ROHS3 compliance. This option is appropriate for applications where voltage compatibility with existing 5V supply circuits is a primary consideration.

HLMP-4700-C00B2 (Broadcom Limited) offers an alternative with reduced power consumption (2mA at 1.7V). While this part lacks specified lens style and size details in the provided data, it maintains the red color, single configuration, and through-hole right-angle mounting. This part is active and ROHS3 compliant but should be evaluated for mechanical fit in existing PCB layouts.

All three substitute parts satisfy the core substitution criteria: red color, single configuration, diffused tinted lens type, through-hole right-angle mounting, and MSL 1 rating. Selection should be based on circuit voltage requirements, desired luminous intensity, and mechanical space constraints within the application.

Frequently Asked Questions (FAQ)

Q: Can the HLMP-D150-C00B2 directly replace the MR37509MP6 in existing designs?

A: The HLMP-D150-C00B2 maintains identical mechanical and optical characteristics (lens style, lens size, mounting type). However, the voltage and current ratings differ significantly (1.6V/1mA versus 5V/10mA). Direct substitution requires circuit redesign to accommodate the lower voltage and current requirements. The luminous intensity is comparable (3mcd versus 4mcd), making optical performance suitable for indicator applications.

Q: Why does the SSF-LXH100MID-5V have higher millicandela rating than the original part?

A: The SSF-LXH100MID-5V delivers 20mcd compared to the MR37509MP6's 4mcd. This increased luminous intensity results from the LED die characteristics and optical design of the Lumex component. In applications where the original 4mcd intensity is sufficient, the higher output of the SSF-LXH100MID-5V will produce a brighter indicator. Circuit design should account for this difference if consistent brightness is required across multiple indicator positions.

Q: Are all substitute parts RoHS compliant?

A: Yes. The HLMP-D150-C00B2, HLMP-4700-C00B2, and SSF-LXH100MID-5V all carry ROHS3 compliance. The original MR37509MP6 is RoHS non-compliant. Substitution with any of these parts satisfies RoHS regulatory requirements for new production and updated designs.

Q: What is the impact of different voltage ratings on circuit design?

A: The MR37509MP6 operates at 5V, while the Broadcom HLMP series parts operate at 1.6V–1.7V. The SSF-LXH100MID-5V maintains 5V compatibility. If selecting a lower-voltage substitute, the series resistor value in the LED circuit must be recalculated to limit current to the specified rating (1mA or 2mA for Broadcom parts). Failure to adjust the circuit will result in excessive current and component failure.

Q: Can the HLMP-4700-C00B2 be used if lens style and size are not specified?

A: The HLMP-4700-C00B2 is listed without lens style and size specifications in the provided data. While it maintains the required color, configuration, and mounting type, the absence of detailed lens geometry information presents a risk for mechanical fit in existing PCB layouts designed for the 5mm T-1 3/4 form factor. Physical verification or consultation with the manufacturer is necessary before committing to this part for existing designs.

Q: What is Moisture Sensitivity Level 1, and why is it important?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and requires no special moisture control during storage or handling. All parts listed—the original MR37509MP6 and all substitutes—carry this rating, meaning they can be stored and handled using standard industrial practices without desiccant packaging or controlled humidity environments.