CMW01Y LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The CMW01Y is a 3mm yellow diffused LED circuit board indicator manufactured by Visual Communications Company (VCC). This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design and procurement requirements. The CMW01Y features a through-hole right-angle mounting configuration with a 2.1V forward voltage rating and 20mA nominal current, suitable for standard PCB indicator applications requiring yellow wavelength output at 590nm peak.

Substiute Parts

CMW01Y

Visual Communications Company - VCCIn Stock: 727CMW01Y Datasheet

Current PartRFQ

WP1384AL/YD

KingbrightIn Stock: 792WP1384AL/YD Datasheet

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WP934CB/YD

KingbrightIn Stock: 5090WP934CB/YD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMW01Y is determined by the following critical parameters: color (yellow), wavelength (590nm), configuration (single), mounting type (through hole, right angle), lens type (diffused, tinted), and lens style (round with domed top). Acceptable substitutes must maintain compatibility within the following tolerance ranges:

• Voltage Rating: 2.1V to 2.2V
• Current Rating: 20mA to 30mA
• Millicandela Rating: minimum 11.5mcd
• Viewing Angle: 40° to 120°
• Lens Size: 3mm to 3.4mm diameter
• Product Status: Active preferred for ongoing availability
• Compliance: ROHS3 and REACH requirements maintained

Two active substitute parts meet these criteria: WP934CB/YD (Kingbright) and WP1384AL/YD (Kingbright).

Parameter Comparison

Engineering Selection Recommendations

WP934CB/YD (Kingbright) provides the closest electrical and mechanical match to the CMW01Y. This substitute maintains identical voltage (2.1V), current (20mA), lens size (3mm T-1), and mounting configuration. The primary difference is a reduced viewing angle (40° versus 120°), which may impact applications requiring wide-angle visibility. This part is active and ROHS3 compliant with unlimited MSL rating.

WP1384AL/YD (Kingbright) offers an alternative with increased brightness (15mcd versus 12.5mcd) and higher current capacity (30mA versus 20mA). The lens diameter increases to 3.4mm, and the viewing angle narrows to 60°. Forward voltage increases marginally to 2.2V. This substitute is suitable for applications where increased luminous intensity is beneficial and mechanical envelope permits the larger lens diameter. This part is active and ROHS3 compliant with unlimited MSL rating.

Both substitutes maintain full compliance with ROHS3 and REACH requirements. Selection between WP934CB/YD and WP1384AL/YD depends on specific application requirements regarding viewing angle, brightness, and mechanical fit within the PCB assembly.

Frequently Asked Questions (FAQ)

Q: Can WP934CB/YD directly replace CMW01Y without circuit modification?

A: WP934CB/YD maintains identical electrical parameters (2.1V, 20mA) and mechanical mounting (3mm T-1 through hole, right angle). Direct substitution is possible without circuit modification. The reduced viewing angle (40° versus 120°) may affect visibility in applications requiring wide-angle indication.

Q: What is the primary difference between WP934CB/YD and WP1384AL/YD?

A: WP934CB/YD matches the CMW01Y electrical specifications exactly (2.1V, 20mA) with identical lens size (3mm). WP1384AL/YD features increased brightness (15mcd), higher current rating (30mA), slightly elevated voltage (2.2V), and larger lens diameter (3.4mm). WP1384AL/YD is suitable when increased luminous intensity is required and mechanical space permits the larger lens.

Q: Are both substitutes compatible with existing PCB layouts designed for CMW01Y?

A: WP934CB/YD is mechanically and electrically compatible with existing CMW01Y layouts. WP1384AL/YD has a larger lens diameter (3.4mm versus 3mm), which may require verification of available PCB clearance around the mounting hole.

Q: Do the substitute parts maintain the same compliance certifications?

A: Both WP934CB/YD and WP1384AL/YD are ROHS3 compliant and REACH unaffected, matching the CMW01Y compliance profile. Both carry MSL rating 1 (unlimited moisture sensitivity level).

Q: Which substitute should be selected for new designs?

A: WP934CB/YD is recommended for direct replacement scenarios requiring identical electrical and mechanical specifications. WP1384AL/YD is recommended for new designs where increased brightness or higher current capacity provides functional benefits and mechanical constraints permit the larger lens diameter.