MV57173 LED Light Bar - Equivalent & Substitute Parts

Part Overview

The MV57173 is a red LED circuit board indicator light bar manufactured by onsemi, featuring a 12.70mm x 6.35mm rectangular lens with flat top design. This through-hole mounted component operates at 2V with a 35mA current rating and delivers 4.5mcd brightness output at a peak wavelength of 635nm. The part is currently obsolete, making identification of compatible substitute components essential for ongoing production, maintenance, and design updates.

Substiute Parts

MV57173

onsemiIn Stock: 991MV57173 Datasheet

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DE2ID

KingbrightIn Stock: 1213DE2ID Datasheet

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LTL-57173HR

Lite-On Inc.In Stock: 925LTL-57173HR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MV57173 is determined by the following critical parameters: color (red), voltage rating (2V), mounting type (through hole), lens style (rectangle with flat top), and physical compatibility with the 12.70mm x 6.35mm form factor. Current rating and millicandela output are secondary considerations that define functional equivalence within acceptable operating ranges.

Two substitute parts meet these criteria:

LTL-57173HR (Lite-On Inc.) - Maintains identical lens dimensions (12.70mm x 6.35mm), configuration (Bar - Single, DIP), wavelength (635nm), and voltage rating (2V). Current rating is reduced to 25mA with 4.2mcd output, representing a direct form-fit-function replacement.

DE2ID (Kingbright) - Shares voltage rating (2V), mounting type (through hole), and lens style (rectangle with flat top). Physical dimensions differ (14.00mm x 7.50mm), and wavelength is shifted to 625nm with increased brightness (20mcd) and reduced current requirement (30mA). This part functions as a functional substitute with modified optical and dimensional characteristics.

Parameter Comparison

Engineering Selection Recommendations

LTL-57173HR is the primary substitute for direct replacement applications. This part maintains identical physical dimensions, electrical voltage specification, and optical wavelength. The reduced current requirement (25mA versus 35mA) and marginally lower brightness output (4.2mcd versus 4.5mcd) are within acceptable tolerance for most indicator applications. The part is currently in active production status with ROHS3 compliance. REACH Affected status requires verification against specific regulatory requirements for your application region.

DE2ID serves as a functional alternative where dimensional constraints permit a larger form factor (14.00mm x 7.50mm). This part offers significantly higher brightness (20mcd) with lower current consumption (30mA), making it suitable for applications requiring enhanced visibility or reduced power draw. The 625nm wavelength produces a perceptibly different red hue compared to the original 635nm specification. Dimensional change necessitates PCB layout modification. This part maintains REACH Unaffected status and ROHS3 compliance.

Both substitute parts share the same 2V voltage rating, through-hole mounting type, and unlimited moisture sensitivity level (MSL 1) as the original MV57173, ensuring compatibility with existing circuit designs and environmental handling procedures.

Frequently Asked Questions (FAQ)

Q: Can LTL-57173HR be used as a direct drop-in replacement for MV57173?

A: Yes. LTL-57173HR maintains identical lens dimensions (12.70mm x 6.35mm), DIP configuration, and 2V voltage rating. The 10mA reduction in current rating and 0.3mcd decrease in brightness are within typical indicator application tolerances. No PCB modification is required.

Q: What are the key differences between LTL-57173HR and DE2ID?

A: LTL-57173HR preserves the original form factor and wavelength (635nm), while DE2ID increases lens size to 14.00mm x 7.50mm and shifts wavelength to 625nm. DE2ID delivers 4.7 times greater brightness (20mcd) but requires PCB layout changes due to dimensional differences.

Q: Does wavelength difference between MV57173 (635nm) and DE2ID (625nm) affect functionality?

A: Both wavelengths produce red light visible to the human eye. The 10nm difference results in a perceptibly warmer red tone from DE2ID. For applications where color matching with adjacent indicators is critical, this difference should be evaluated.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both LTL-57173HR and DE2ID are ROHS3 compliant. However, LTL-57173HR carries REACH Affected status, while DE2ID is REACH Unaffected. Verify REACH compliance requirements for your specific application and target markets.

Q: Which substitute part requires the least circuit modification?

A: LTL-57173HR requires no modification. It is a form-fit-function replacement with identical dimensions and mounting footprint. DE2ID requires PCB layout changes to accommodate the larger 14.00mm x 7.50mm lens size.

Q: Can current limiting resistor values remain unchanged when substituting with DE2ID?

A: No. DE2ID operates at 30mA versus the original 35mA specification. Recalculate series resistor values based on the new current requirement and circuit voltage to maintain proper LED operation and prevent overcurrent conditions.