Dialight 5554007 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5554007 is a quad red LED circuit board indicator featuring a 2.00mm diameter clear lens with domed top, designed for 5V applications at 3mA current draw. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part operates at 650nm peak wavelength with a 40° viewing angle and is mounted through-hole in a right-angle configuration.

Substiute Parts

5554007

DialightIn Stock: 11585554007 Datasheet

Current PartRFQ

5554007F

DialightIn Stock: 8945554007F Datasheet

DirectRFQ

AM2520EF/4ID5V

KingbrightIn Stock: 891AM2520EF/4ID5V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Dialight 5554007 are categorized based on the following critical parameters that determine functional compatibility:

Direct Equivalent (Same Manufacturer): The 5554007F maintains identical electrical specifications (5V, 3mA, 650nm, 9mcd) and mechanical configuration (4-wide, through-hole right-angle mounting). The primary difference is product status (active vs. obsolete) and RoHS compliance (ROHS3 compliant vs. non-compliant). This part is a direct replacement with no functional deviation.

Similar Substitute (Alternative Manufacturer): The Kingbright AM2520EF/4ID5V shares the core functional parameters: 4-wide configuration, red color, 5V voltage rating, 40° viewing angle, and through-hole mounting. However, this substitute introduces the following parameter variations: 1.80mm lens diameter (vs. 2.00mm), 18mA current draw (vs. 3mA), 627nm wavelength (vs. 650nm), 8mcd brightness (vs. 9mcd), and diffused/tinted lens type (vs. clear). These differences require circuit-level evaluation for compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification): The Dialight 5554007F is the recommended substitute. As an active product with ROHS3 compliance, it provides identical electrical and mechanical specifications to the obsolete 5554007. The transition from RoHS non-compliant to ROHS3 compliant status aligns with current regulatory requirements for new production and procurement.

For Alternative Sourcing (Circuit Evaluation Required): The Kingbright AM2520EF/4ID5V may be considered when the 5554007F is unavailable. This substitute requires circuit-level assessment due to parameter deviations: the 18mA current draw (6x higher than the original 3mA specification) necessitates current-limiting resistor recalculation; the 1.80mm lens diameter represents a 10% reduction in optical aperture; the diffused/tinted lens modifies light transmission characteristics compared to the clear lens; and the 627nm wavelength shift (23nm shorter) may affect color perception in applications with strict color matching requirements. Both substitute options maintain ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the 5554007F be used as a direct drop-in replacement for the 5554007? A: Yes. The 5554007F maintains identical electrical specifications (5V, 3mA, 650nm, 9mcd), mechanical configuration (4-wide, through-hole right-angle), and viewing angle (40°). No circuit modifications are required.

Q: What are the key differences between the 5554007 and the Kingbright AM2520EF/4ID5V? A: The Kingbright substitute differs in four parameters: current draw (18mA vs. 3mA), lens diameter (1.80mm vs. 2.00mm), wavelength (627nm vs. 650nm), and lens type (diffused/tinted vs. clear). These differences require circuit evaluation before substitution.

Q: Does the higher current draw of the AM2520EF/4ID5V affect circuit compatibility? A: Yes. The 18mA current specification is 6 times higher than the original 3mA. Existing current-limiting resistors must be recalculated to maintain proper LED operation and prevent overcurrent conditions.

Q: Are both substitute parts RoHS compliant? A: Yes. Both the 5554007F and AM2520EF/4ID5V are ROHS3 compliant, meeting current regulatory requirements for electronic components.

Q: What is the impact of the lens size difference (2.00mm vs. 1.80mm)? A: The 1.80mm lens diameter on the Kingbright part represents a 10% reduction in optical aperture. This may affect light output distribution and visual brightness perception in the application, despite similar millicandela ratings.

Q: Can the diffused/tinted lens of the AM2520EF/4ID5V replace the clear lens of the 5554007? A: The lens types differ in light transmission characteristics. The diffused/tinted lens will scatter light differently than the clear lens, potentially affecting color saturation and viewing angle performance in the specific application.