CMD6722VRVGCTR8 Equivalent & Substitute Parts

Part Overview

The CMD6722VRVGCTR8 is a dual-color surface mount LED indicator manufactured by Visual Communications Company (VCC). This component provides independent green and red LED indication in a compact 4-PLCC package with clear lens and round flat-top design. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility across forward voltage, test current, and optical characteristics while accommodating the surface mount assembly process.

Substiute Parts

CMD6722VRVGCTR8

Visual Communications Company - VCCIn Stock: 2916CMD6722VRVGCTR8 Datasheet

Current PartRFQ

VLMKG3400-GS08

Vishay Semiconductor Opto DivisionIn Stock: 2140VLMKG3400-GS08 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the CMD6722VRVGCTR8 is determined by the following critical parameters:

Electrical Compatibility:

• Forward voltage tolerance: Green and red channels must operate within ±0.2V of the original specification to maintain circuit compatibility without redesign
• Test current: 20mA per channel is the standard operating point
• Independent configuration: Both LEDs must function as discrete, independently controlled elements

Optical Compatibility:

• Lens size: 2.40mm diameter maintains mechanical fit in existing PCB layouts
• Lens style: Round with flat top ensures consistent light distribution and mechanical alignment
• Lens transparency: Clear lens required for color fidelity
• Viewing angle: 120° minimum to preserve visibility characteristics
• Wavelength range: Peak wavelengths must remain within the green (565-575nm) and red (630-650nm) bands

Mechanical & Package Compatibility:

• Surface mount 4-PLCC package configuration
• Physical footprint: 3.00-3.20mm length, 2.80mm width accommodates standard PCB layouts
• Height: Maximum 2.10mm clearance requirement

Regulatory & Environmental:

• RoHS3 compliance required
• MSL rating: 4 (72 Hours) or better acceptable for standard assembly processes

The VLMKG3400-GS08 from Vishay Semiconductor Opto Division meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The VLMKG3400-GS08 is a direct functional substitute for the obsolete CMD6722VRVGCTR8 based on the following engineering criteria:

Electrical Compatibility: Forward voltage specifications for the VLMKG3400-GS08 (2.0V green, 1.9V red) are within acceptable tolerance of the CMD6722VRVGCTR8 (2.1V green, 2.0V red). Both components operate at identical 20mA test current per channel. Circuit designs using current-limiting resistors will accommodate the minor voltage differential without modification.

Optical Performance: Both components maintain 120° viewing angle and identical 2.40mm lens diameter with clear, round flat-top design. The VLMKG3400-GS08 provides higher luminous intensity (63mcd green, 98mcd red versus 25mcd green, 10mcd red), which represents improved optical performance without compromising compatibility. Peak wavelengths remain within standard green (570-572nm) and red (640-643nm) bands.

Mechanical Fit: The VLMKG3400-GS08 footprint (3.00mm L x 2.80mm W x 1.85mm H) is compatible with existing PCB layouts designed for the CMD6722VRVGCTR8 (3.20mm L x 2.80mm W x 2.10mm H). The lower profile of the substitute component provides additional clearance margin.

Regulatory Compliance: Both components are ROHS3 compliant and REACH unaffected. The VLMKG3400-GS08 carries active product status with MSL 4 rating, ensuring long-term availability and standard manufacturing support.

Product Status Consideration: The CMD6722VRVGCTR8 is classified as obsolete. The VLMKG3400-GS08 is active product, providing procurement continuity and manufacturing support for new designs and ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can the VLMKG3400-GS08 be used as a direct replacement for the CMD6722VRVGCTR8 without circuit modification?

A: Yes. The VLMKG3400-GS08 operates at compatible forward voltages (2.0V green, 1.9V red) and identical test current (20mA per channel). Standard current-limiting resistor designs will function without adjustment. Both components are independent dual-color configurations with identical 120° viewing angle and 2.40mm lens diameter.

Q: What are the key differences between these two components?

A: The primary differences are manufacturer (VCC versus Vishay), product status (obsolete versus active), and luminous intensity. The VLMKG3400-GS08 provides higher brightness (63mcd green, 98mcd red) compared to the CMD6722VRVGCTR8 (25mcd green, 10mcd red). The substitute component also features a lower profile (1.85mm versus 2.10mm maximum height) and improved MSL rating (4 versus 3).

Q: Are the package footprints identical?

A: The packages are functionally compatible for PCB layout purposes. The CMD6722VRVGCTR8 uses 4-PLCC packaging with 3.20mm length, while the VLMKG3400-GS08 uses 4-SMD J-Lead packaging with 3.00mm length. Both maintain 2.80mm width and are designed for surface mount assembly. The slightly smaller footprint of the substitute component provides additional layout flexibility.

Q: Do both components meet the same regulatory requirements?

A: Yes. Both the CMD6722VRVGCTR8 and VLMKG3400-GS08 are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and identical HTSUS code (8541.41.0000).

Q: What is the impact of the higher millicandela rating on circuit design?

A: The VLMKG3400-GS08 provides higher luminous intensity without requiring circuit modification. If the original design used current-limiting resistors calculated for the CMD6722VRVGCTR8 brightness levels, the substitute component will produce brighter indication at the same current. This represents improved performance. If brightness reduction is required, resistor values can be adjusted upward to reduce current below 20mA.

Q: How does the MSL rating difference affect assembly and storage?

A: The CMD6722VRVGCTR8 carries MSL 3 (168 hours), while the VLMKG3400-GS08 carries MSL 4 (72 hours). MSL 4 indicates more stringent moisture sensitivity. Standard surface mount assembly processes accommodate MSL 4 components without additional precautions. Storage and handling procedures should follow the more restrictive MSL 4 requirements when using the VLMKG3400-GS08.

Q: Is the wavelength difference between the two red LEDs significant?

A: The peak wavelength difference (640nm CMD6722VRVGCTR8 versus 643nm VLMKG3400-GS08) is within standard red LED spectrum variation and is not visually distinguishable. Both components fall within the red indication band and will appear identical in color to the human eye.