SLR-56VCT32 Equivalent & Substitute Parts

Part Overview

The SLR-56VCT32 is a red LED indicator manufactured by Rohm Semiconductor, designed for through-hole mounting applications. This T-1 3/4 radial LED operates at 2V forward voltage with a 25mcd brightness rating and 630nm dominant wavelength. The component is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts are identified when equivalent electrical and mechanical parameters align within the allowed specifications for this product category.

Substiute Parts

SLR-56VCT32

Rohm SemiconductorIn Stock: 1029SLR-56VCT32 Datasheet

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HLMP-D155

Broadcom LimitedIn Stock: 9365HLMP-D155 Datasheet

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LTL2R3KEK

Lite-On Inc.In Stock: 9513LTL2R3KEK Datasheet

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SSL-LX5093HT

Lumex Opto/Components Inc.In Stock: 1666SSL-LX5093HT Datasheet

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WP7113IT

KingbrightIn Stock: 29158WP7113IT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLR-56VCT32 are qualified based on the following criteria:

• Color: Red LED indication
• Lens Transparency: Clear
• Mounting Type: Through Hole radial configuration
• Package / Case: T-1 3/4 form factor
• Voltage - Forward (Vf): Range 1.7V to 2.05V
• Lens Size: 5mm nominal diameter
• RoHS Status: ROHS3 Compliant
• Product Status: Active

Parts meeting these electrical and mechanical parameters are considered functionally equivalent for circuit design purposes. Variations in millicandela rating, wavelength, and test current reflect different brightness and spectral characteristics within the red LED category.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the SLR-56VCT32. Forward voltage compatibility spans 1.7V to 2.05V, accommodating standard LED circuit designs with appropriate current-limiting resistors.

HLMP-D155 (Broadcom Limited): Operates at 1.7V with reduced test current (1mA) and lower brightness (10mcd). Height reaches 12.44mm, exceeding the SLR-56VCT32 by 4.64mm. Suitable for applications where lower brightness and compact height are not critical constraints.

LTL2R3KEK (Lite-On Inc.): Delivers 700mcd brightness at 2.05V with 20mA test current. Height of 8.70mm remains within compact specifications. Appropriate for applications requiring higher luminous intensity than the SLR-56VCT32.

SSL-LX5093HT (Lumex Opto/Components Inc.): Matches the SLR-56VCT32 at 2V forward voltage and 25mcd brightness. Height of 8.60mm provides minimal dimensional variation. Direct functional equivalent for standard indicator applications.

WP7113IT (Kingbright): Operates at 2V with 100mcd brightness and 20mA test current. Height of 8.60mm maintains compact form factor. Suitable for applications requiring moderate brightness increase over the SLR-56VCT32.

Frequently Asked Questions (FAQ)

Q: Can HLMP-D155 be used as a direct replacement for SLR-56VCT32?

A: HLMP-D155 is electrically compatible within the red LED category but differs in brightness (10mcd vs. 25mcd) and maximum height (12.44mm vs. 8.90mm). Circuit design must account for the lower forward voltage (1.7V) and reduced test current (1mA). Physical clearance verification is required due to increased height.

Q: What is the primary difference between LTL2R3KEK and SLR-56VCT32?

A: LTL2R3KEK provides significantly higher brightness (700mcd vs. 25mcd) at a slightly elevated forward voltage (2.05V vs. 2V). Test current increases to 20mA. Both maintain T-1 3/4 package compatibility and similar heights. Selection depends on brightness requirements for the indicator application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts—HLMP-D155, LTL2R3KEK, SSL-LX5093HT, and WP7113IT—maintain ROHS3 compliance, matching the SLR-56VCT32 regulatory status.

Q: Which substitute offers the closest dimensional match to SLR-56VCT32?

A: SSL-LX5093HT and WP7113IT both achieve 8.60mm maximum height, compared to 8.90mm for the SLR-56VCT32. These parts provide minimal dimensional variation for space-constrained PCB layouts.

Q: How does wavelength variation affect substitution?

A: Wavelength differences (617nm to 640nm) reflect spectral characteristics within the red LED range. All parts maintain red color classification. Wavelength selection depends on application-specific color perception requirements; no wavelength is inherently superior for standard indicator functions.

Q: Can forward voltage differences impact circuit design?

A: Yes. Forward voltage ranges from 1.7V (HLMP-D155) to 2.05V (LTL2R3KEK). Current-limiting resistor values must be recalculated for each substitute to maintain proper LED operation. Voltage supply compatibility should be verified before substitution.