Dialight 5500307 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5500307 is a 5mm yellow LED circuit board indicator with right-angle through-hole mounting, rated at 2.1V and 20mA. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part features a diffused lens with domed top, 585nm peak wavelength, and 12.3mcd brightness rating. Direct replacements and functionally equivalent alternatives are available from multiple manufacturers with active product status.

Substiute Parts

5500307

DialightIn Stock: 11985500307 Datasheet

Current PartRFQ

5500305F

DialightIn Stock: 41265500305F Datasheet

DirectRFQ

5500307F

DialightIn Stock: 28115500307F Datasheet

DirectRFQ

H178CYD

Bivar Inc.In Stock: 897H178CYD Datasheet

SimilarRFQ

SSF-LXH100YD

Lumex Opto/Components Inc.In Stock: 4498SSF-LXH100YD Datasheet

SimilarRFQ

WP1503CB/YD

KingbrightIn Stock: 7312WP1503CB/YD Datasheet

SimilarRFQ

WP73JB/YDA

KingbrightIn Stock: 1769WP73JB/YDA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5500307 is determined by the following critical parameters:

Direct Substitutes (Dialight Series 550): Parts 5500305F and 5500307F maintain identical electrical specifications (2.1V, 20mA, 585nm, 12.3mcd) and mechanical form factors (5mm T-1 3/4, right-angle through-hole, diffused domed lens). These parts differ only in packaging format and product status, with both rated as active and RoHS3 compliant.

Similar Substitutes (Cross-Manufacturer): Parts H178CYD (Bivar), SSF-LXH100YD (Lumex), WP1503CB/YD (Kingbright), and WP73JB/YDA (Kingbright) share the core functional characteristics: yellow color, diffused domed lens, 5mm form factor, through-hole right-angle mounting, and 20mA nominal current. These alternatives permit minor variations in wavelength (590nm vs. 585nm), voltage (2.0V–2.2V range), brightness (25–30mcd), and viewing angle (45°–60°) within acceptable tolerance for circuit board indicator applications.

Exclusion Criteria: WP73JB/YDA is classified as a similar substitute due to its 4.80mm lens diameter, which differs from the standard 5mm T-1 3/4 form factor of the primary part.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes: Parts 5500305F and 5500307F are the preferred direct replacements for the obsolete Dialight 5500307. Both maintain identical electrical and mechanical specifications while offering active product status and RoHS3 compliance. Selection between these two Dialight alternatives depends on packaging requirements: 5500305F is supplied in bulk packaging, while 5500307F is also available in bulk format.

Secondary Substitutes: Cross-manufacturer alternatives (H178CYD, SSF-LXH100YD, WP1503CB/YD, WP73JB/YDA) are suitable for applications where brightness variation and minor wavelength shifts are acceptable. SSF-LXH100YD and WP1503CB/YD offer increased brightness (30mcd) compared to the original specification. H178CYD provides a narrower viewing angle (45° vs. 60°). WP73JB/YDA differs in lens diameter (4.80mm vs. 5mm) and should be selected only when form factor tolerance permits.

Compliance Consideration: All substitute parts carry RoHS3 compliance certification, exceeding the REACH Unaffected status of the original part. This ensures regulatory alignment for new production and long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can 5500305F and 5500307F be used interchangeably with the original 5500307?

A: Yes. Both parts maintain identical electrical ratings (2.1V, 20mA), wavelength (585nm), brightness (12.3mcd), and mechanical form factor (5mm T-1 3/4 through-hole right-angle). The primary difference is packaging format and active product status.

Q: What are the key differences between Dialight substitutes and cross-manufacturer alternatives?

A: Dialight parts 5500305F and 5500307F provide exact electrical and optical specifications. Cross-manufacturer alternatives permit variations: wavelength (590nm vs. 585nm), brightness (25–30mcd vs. 12.3mcd), current rating (30mA vs. 20mA for some models), and viewing angle (45° for H178CYD vs. 60° standard). These variations remain within acceptable tolerance for circuit board indicator applications.

Q: Is WP73JB/YDA a direct substitute?

A: WP73JB/YDA is classified as a similar substitute due to its 4.80mm lens diameter, which differs from the standard 5mm T-1 3/4 form factor. It is suitable only when PCB mounting hole tolerances and visual appearance requirements permit this dimensional variation.

Q: Do all substitute parts meet current regulatory requirements?

A: Yes. All substitute parts carry RoHS3 compliance and REACH Unaffected status, meeting current regulatory standards for electronic component manufacturing and supply.

Q: Which substitute offers the best brightness match to the original part?

A: Parts 5500305F and 5500307F provide exact brightness matching at 12.3mcd. Cross-manufacturer alternatives offer higher brightness ratings (25–30mcd), which may affect visual appearance in applications sensitive to indicator intensity.

Q: Are there packaging considerations when selecting substitutes?

A: Yes. Dialight 5500305F and 5500307F are supplied in bulk packaging. Bivar H178CYD is supplied in tray packaging. Lumex SSF-LXH100YD and Kingbright WP1503CB/YD and WP73JB/YDA are supplied in bulk packaging. Packaging selection depends on assembly process requirements and inventory management practices.