W7104VGC/E Equivalent & Substitute Parts

Part Overview

The W7104VGC/E is a green LED indicator manufactured by Kingbright, designed for through-hole applications with a T-1 form factor and 3mm lens diameter. This component features a dominant wavelength of 525nm and operates at a forward voltage of 4V with a test current of 20mA, delivering 2000 millicandela of luminous intensity.

The W7104VGC/E is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing production requirements, maintenance operations, and design continuity for applications currently utilizing this part.

Substiute Parts

W7104VGC/E

KingbrightIn Stock: 978W7104VGC/E Datasheet

Current PartRFQ

WP710A10ZGC/G

KingbrightIn Stock: 4928WP710A10ZGC/G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the W7104VGC/E is determined by the following critical parameters that must remain consistent across equivalent components:

Mandatory Matching Parameters:

• Color: Green
• Wavelength - Dominant: 525nm
• Lens Size: 3mm, T-1
• Lens Style: Round with Domed Top
• Lens Transparency: Clear
• Mounting Type: Through Hole
• Package / Case: Radial
• Viewing Angle: 34°
• Current - Test: 20mA
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Parameters Permitted to Vary:

• Voltage - Forward (Vf): May differ within acceptable circuit design tolerances
• Millicandela Rating: May increase without functional degradation
• Height (Max): Minor dimensional variations acceptable for through-hole mounting
• Wavelength - Peak: Minor variations acceptable within green spectrum
• Product Status: Active status preferred over obsolete

The substitute part WP710A10ZGC/G meets all mandatory matching parameters while offering improved electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The WP710A10ZGC/G is a direct substitute for the W7104VGC/E based on the following engineering criteria:

Compliance and Regulatory Status: Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity in applications subject to environmental restrictions. Both components carry identical ECCN and HTSUS classifications, supporting consistent export and import documentation.

Product Lifecycle Status: The W7104VGC/E is classified as obsolete, creating supply chain risk for ongoing production and field maintenance. The WP710A10ZGC/G maintains active product status with Kingbright, ensuring long-term availability and supply chain stability.

Optical and Mechanical Compatibility: Both components share identical lens specifications (3mm T-1 clear round domed top), dominant wavelength (525nm), and viewing angle (34°), ensuring optical performance equivalence in indicator applications. The radial through-hole package and 2.90mm diameter maintain identical PCB footprint compatibility. The height difference of 1.0mm (4.90mm versus 5.90mm) remains within acceptable tolerances for standard through-hole mounting applications.

Electrical Characteristics: The WP710A10ZGC/G operates at 3.2V forward voltage compared to the 4V specification of the W7104VGC/E. This 0.8V reduction requires circuit design verification to confirm compatibility with existing current-limiting resistor values. The test current specification remains constant at 20mA for both components. The WP710A10ZGC/G delivers 14000mcd compared to 2000mcd in the original part, providing enhanced luminous intensity without functional degradation.

Moisture and Environmental Specifications: Both components specify MSL Level 1 (Unlimited), indicating identical moisture sensitivity and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the WP710A10ZGC/G be used as a direct replacement for the W7104VGC/E without circuit modification?

A: The WP710A10ZGC/G shares identical optical, mechanical, and mounting specifications with the W7104VGC/E. However, the forward voltage differs by 0.8V (3.2V versus 4V). Circuit design verification is required to confirm that existing current-limiting resistor values produce acceptable LED current at the lower forward voltage. If the circuit was designed with a fixed resistor value, the LED current will increase with the lower forward voltage, potentially requiring resistor adjustment.

Q: What are the key parameters that define substitution compatibility for this LED?

A: Substitution compatibility is determined by matching color (green), dominant wavelength (525nm), lens size and style (3mm T-1 clear round domed top), mounting type (through hole radial), viewing angle (34°), and test current (20mA). All regulatory certifications (ROHS3, REACH unaffected) and moisture sensitivity levels must also remain consistent. The WP710A10ZGC/G meets all these requirements.

Q: Does the increased millicandela rating (14000mcd versus 2000mcd) affect compatibility?

A: The increased luminous intensity of the WP710A10ZGC/G does not create incompatibility. Higher millicandela ratings indicate improved light output at the same test current. Applications requiring the original brightness level can operate the WP710A10ZGC/G at reduced current through circuit design adjustment, or accept the increased brightness if the application permits.

Q: Are there any dimensional concerns with the 1.0mm height difference?

A: The height difference (4.90mm versus 5.90mm) remains within acceptable tolerances for standard through-hole PCB mounting. Both components maintain the same 2.90mm diameter and radial package configuration, ensuring identical footprint compatibility. No mechanical redesign is required.

Q: What is the significance of the active product status for the WP710A10ZGC/G?

A: Active product status indicates that Kingbright continues manufacturing and supporting the WP710A10ZGC/G. This ensures long-term component availability, consistent quality, and access to technical support. The W7104VGC/E, classified as obsolete, faces supply discontinuation and potential quality variations from remaining inventory.

Q: Are the regulatory classifications identical between both components?

A: Yes. Both the W7104VGC/E and WP710A10ZGC/G share identical ECCN (EAR99), HTSUS (8541.41.0000), ROHS3 compliance status, and REACH unaffected status. No changes to export documentation, import procedures, or regulatory compliance are required when substituting between these components.

Q: What packaging differences exist between the main part and substitute?

A: The W7104VGC/E is specified with dash packaging notation, while the WP710A10ZGC/G is supplied in bulk packaging. Both components maintain identical through-hole radial package specifications suitable for standard PCB assembly processes. Packaging format does not affect electrical or mechanical compatibility.