LED AMBER DIFFUSED T-1 3/4 T/H 4304H3 Equivalent & Substitute Parts

Part Overview

The VCC 4304H3 is an amber diffused LED indicator in T-1 3/4 (5mm) through-hole package, designed for discrete amber LED indication applications. This component operates at 1.9V forward voltage with a 7mcd brightness rating and 60° viewing angle. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

4304H3

Visual Communications Company - VCCIn Stock: 11814304H3 Datasheet

Current PartRFQ

SSL-LX5093AD-TR

Lumex Opto/Components Inc.In Stock: 787SSL-LX5093AD-TR Datasheet

SimilarRFQ

WP7113ND

KingbrightIn Stock: 22129WP7113ND Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4304H3 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Lens size: 5mm, T-1 3/4 form factor
• Mounting type: Through hole radial configuration
• Lens color and transparency: Amber diffused
• Package type: Radial

Secondary Compatibility Criteria:

• Forward voltage (Vf): Tolerance range 1.9V to 2.1V
• Current rating: 10mA to 20mA test current
• Wavelength peak: 602nm to 607nm range
• Viewing angle: 30° to 60°
• Brightness (mcd): 7mcd minimum

Substitute parts must maintain mechanical compatibility (package, mounting, physical dimensions) and operate within the specified electrical parameter ranges. Color specification (amber) is a primary constraint; orange variants are noted as color-shifted alternatives only.

Parameter Comparison

Engineering Selection Recommendations

SSL-LX5093AD-TR (Lumex Opto/Components Inc.) - Primary Substitute

The SSL-LX5093AD-TR is the direct functional equivalent for the 4304H3. Both components share identical mechanical specifications (5mm T-1 3/4 through-hole radial package), lens color (amber), and lens transparency (diffused). The SSL-LX5093AD-TR operates at 2.1V forward voltage (within acceptable tolerance of the 1.9V original) and maintains the 60° viewing angle. The higher brightness rating (20mcd versus 7mcd) and increased test current (20mA versus 10mA) represent performance enhancements suitable for applications requiring improved visibility. The SSL-LX5093AD-TR holds active product status with ROHS3 compliance and REACH unaffected certification, ensuring long-term availability and regulatory compliance.

WP7113ND (Kingbright) - Alternative Substitute with Color Shift

The WP7113ND provides mechanical and electrical compatibility within the T-1 3/4 through-hole radial package category. However, this component is specified as orange rather than amber, with a dominant wavelength of 602nm and peak wavelength of 607nm. The viewing angle is narrower (30° versus 60°), and brightness is higher (30mcd). The WP7113ND is suitable only for applications where orange color substitution is acceptable and where the narrower viewing angle does not compromise system requirements. This component maintains active product status, ROHS3 compliance, and REACH unaffected certification. Inventory availability is significantly higher (22112 pcs).

Frequently Asked Questions (FAQ)

Q: Can the SSL-LX5093AD-TR directly replace the 4304H3 without circuit modification?

A: The SSL-LX5093AD-TR is mechanically and electrically compatible with the 4304H3 within standard design tolerances. Both components use identical 5mm T-1 3/4 through-hole radial packages and diffused amber lenses. The forward voltage difference (2.1V versus 1.9V) is within typical LED tolerance ranges. Circuit verification is recommended to confirm that current-limiting resistor values remain appropriate for the higher brightness rating (20mcd versus 7mcd).

Q: Why is the WP7113ND listed as a substitute if it is orange instead of amber?

A: The WP7113ND meets all mechanical and mounting requirements (5mm T-1 3/4 through-hole radial package) and operates within acceptable electrical parameter ranges. However, the color specification differs (orange versus amber). This component is listed as an alternative only for applications where color substitution is functionally acceptable or where the specific wavelength shift (602nm to 607nm) does not affect system performance.

Q: What is the impact of the higher millicandela rating in substitute parts?

A: The SSL-LX5093AD-TR (20mcd) and WP7113ND (30mcd) provide increased brightness compared to the original 4304H3 (7mcd). In applications where the LED brightness is limited by current-limiting resistor design, the higher mcd rating may result in increased light output. Circuit design review is necessary to confirm that the increased brightness is acceptable or to adjust current-limiting resistor values if dimmer operation is required.

Q: Are there viewing angle differences between the substitute parts?

A: Yes. The 4304H3 and SSL-LX5093AD-TR both specify 60° viewing angles, providing wide-angle visibility. The WP7113ND specifies a 30° viewing angle, which is narrower. Applications requiring wide-angle LED visibility should use the SSL-LX5093AD-TR or confirm that the 30° angle of the WP7113ND is acceptable for the intended installation geometry.

Q: Do all substitute parts meet the same regulatory compliance standards?

A: Yes. The 4304H3, SSL-LX5093AD-TR, and WP7113ND are all ROHS3 compliant and REACH unaffected. All components carry the same regulatory classification (ECCN: EAR99; HTSUS: 8541.41.0000) and moisture sensitivity level (MSL 1 - Unlimited).

Q: What is the significance of product status (Obsolete versus Active)?

A: The 4304H3 is classified as obsolete, indicating that VCC no longer manufactures this component. The SSL-LX5093AD-TR and WP7113ND are both active products with ongoing manufacturing and supply chain support. For new designs or long-term procurement, active products are preferred to ensure continued availability and supply chain stability.