Dialight 5501004 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5501004 is a 5mm through-hole LED circuit board indicator featuring a single blue clear lens with domed top design. This component operates at 4V with a 20mA current rating and delivers 520mcd brightness output. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The active substitute variant maintains identical electrical and mechanical specifications while offering improved brightness performance and current product availability.

Substiute Parts

5501004

DialightIn Stock: 9045501004 Datasheet

Current PartRFQ

5501004F

DialightIn Stock: 12325501004F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Dialight 5501004F qualifies as a direct substitute based on the following alignment of critical parameters:

Electrical Compatibility: Both parts operate at identical voltage (4V) and current (20mA) specifications, ensuring circuit-level compatibility without modification.

Mechanical Compatibility: Both parts share identical physical form factors—5mm T-1 3/4 lens size, through-hole mounting configuration, round domed top lens style, and clear lens type. This ensures direct PCB footprint compatibility and mechanical interchangeability.

Optical Characteristics: Both parts deliver blue wavelength output with single-element configuration, maintaining consistent visual indication functionality.

Environmental & Compliance Status: The substitute part carries active product status with RoHS3 compliance certification, whereas the original part is obsolete. Both maintain REACH Unaffected status and identical moisture sensitivity level (MSL 1 - Unlimited).

Brightness Differential: The substitute part (5501004F) provides 1000mcd output compared to the original 520mcd. This represents an enhancement in brightness performance while maintaining all other specifications.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: The Dialight 5501004F is the designated substitute for the obsolete 5501004. Both parts maintain identical electrical and mechanical specifications, ensuring direct replacement capability without circuit redesign or PCB modification.

Compliance Advantage: The substitute part carries active product status with RoHS3 compliance certification, meeting current regulatory requirements for new production and long-term supply chain stability.

Brightness Enhancement: The 5501004F delivers approximately 92% higher brightness output (1000mcd versus 520mcd) while maintaining identical voltage and current ratings. This enhancement improves visual indication clarity without requiring circuit modifications.

Supply Chain Continuity: With 1142 units in current inventory and active product status, the 5501004F ensures reliable component availability for ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5501004F directly replace the 5501004 without PCB modifications?

A: Yes. Both parts share identical mechanical form factors (5mm T-1 3/4 through-hole), electrical ratings (4V, 20mA), and mounting configurations. Direct PCB substitution is possible without layout or circuit changes.

Q: What is the brightness difference between these parts?

A: The 5501004F provides 1000mcd output compared to the original 520mcd rating. This represents enhanced brightness performance while maintaining all other electrical and mechanical specifications.

Q: Are there compliance differences between the original and substitute?

A: The substitute part (5501004F) carries RoHS3 compliance certification and active product status. Both parts maintain REACH Unaffected status and identical MSL 1 ratings. The substitute meets current regulatory requirements for new production.

Q: What packaging options are available?

A: The original 5501004 is supplied in standard packaging. The substitute 5501004F is available in bulk packaging format.

Q: Are the optical characteristics identical?

A: Yes. Both parts deliver blue wavelength output with clear lens type, round domed top lens style, and single-element configuration, ensuring consistent visual indication functionality.

Q: What is the product status difference?

A: The original 5501004 is classified as obsolete. The substitute 5501004F maintains active product status with current manufacturing and inventory support.