Dialight 5510509 LED Circuit Board Indicator Equivalent & Substitute Parts

Part Overview

The Dialight 5510509 is a 3mm red LED circuit board indicator designed for through-hole, right-angle mounting applications. This component operates at 5V with a 10mA current rating and delivers 29mcd luminous intensity with a 60° viewing angle. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Active alternatives within the Dialight 551 series provide direct functional compatibility while maintaining current product support and compliance certifications.

Substiute Parts

5510509

DialightIn Stock: 11095510509 Datasheet

Current PartRFQ

5510501010F

DialightIn Stock: 8935510501010F Datasheet

DirectRFQ

5510501F

DialightIn Stock: 9835510501F Datasheet

DirectRFQ

5510507F

DialightIn Stock: 18715510507F Datasheet

DirectRFQ

5510509F

DialightIn Stock: 21855510509F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5510509 is determined by strict equivalence across the following critical parameters: color (red), wavelength peak (635nm), configuration (single), voltage rating (5V), current (10mA), millicandela rating (29mcd), viewing angle (60°), lens type (diffused, tinted), lens style (round with domed top), lens size (3mm, T-1), and mounting type (through hole, right angle).

All substitute parts listed below maintain identical electrical and optical specifications to the main part number. Substitution is valid across packaging variants (bulk) and product status transitions (obsolete to active). The following part numbers satisfy these substitution criteria:

• 5510501F
• 5510501010F
• 5510507F
• 5510509F

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain full electrical and optical equivalence to the Dialight 5510509. Selection among active alternatives should prioritize parts with ROHS3 compliance certification and confirmed inventory availability. The 5510509F variant offers the highest current inventory level (2168 pcs) and maintains the same base product designation as the original part number, supporting direct design continuity. The 5510507F provides the second-highest inventory availability (1779 pcs) with equivalent compliance status. Both 5510501F and 5510501010F are functionally equivalent but derive from different base product numbers within the 551 series, requiring design documentation review for part number traceability in legacy systems.

Frequently Asked Questions (FAQ)

Q: Can the 5510501F, 5510501010F, 5510507F, and 5510509F be used interchangeably with the 5510509?

A: Yes. All substitute parts maintain identical electrical specifications (5V, 10mA), optical characteristics (635nm peak wavelength, 29mcd, 60° viewing angle), physical form factor (3mm T-1 through-hole right-angle mount), and lens properties (diffused, tinted, round domed top). Direct substitution is valid across all listed part numbers.

Q: What is the difference between the substitute part numbers?

A: The substitute parts originate from different base product numbers within the Dialight 551 series (5510501, 5510507, 5510509) and carry different packaging designations (bulk). All electrical and optical parameters remain identical. Differences are limited to manufacturing lineage and packaging configuration, not functional performance.

Q: Are all substitute parts RoHS compliant?

A: The substitute parts 5510501F, 5510501010F, 5510507F, and 5510509F are all ROHS3 compliant. The original 5510509 does not specify RoHS status. For applications requiring RoHS certification, use only the active substitute parts listed above.

Q: Which substitute part should be selected for new designs?

A: For new designs, select from the active substitute parts (5510501F, 5510501010F, 5510507F, or 5510509F) based on inventory availability and internal part number management requirements. All four options provide equivalent performance and compliance certifications.

Q: Is packaging type a factor in substitution?

A: Packaging type (bulk) does not affect electrical or optical performance. All substitute parts are supplied in bulk packaging. Selection should be based on procurement quantity requirements and inventory availability rather than packaging configuration.