Dialight 5505504 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5505504 is a single red LED circuit board indicator designed for through-hole mounting applications. This component features a 5.00mm diameter clear lens with domed top, rated for 2.2V at 20mA operation, and delivers 125mcd brightness at a 24° viewing angle with a peak wavelength of 635nm.

The 5505504 is classified as obsolete product status. Locating equivalent substitute parts ensures design continuity and maintains supply chain reliability for legacy systems and ongoing production requirements.

Substiute Parts

5505504

DialightIn Stock: 11125505504 Datasheet

Current PartRFQ

5505504F

DialightIn Stock: 16305505504F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Dialight 5505504 is based on strict electrical and mechanical parameter matching within the 550 series LED circuit board indicator family. The substitute part 5505504F maintains identical electrical specifications: single red configuration, 635nm peak wavelength, 20mA current rating, 2.2V voltage rating, 125mcd brightness output, and 24° viewing angle.

Mechanical compatibility is preserved through matching lens type (clear), lens style (round with domed top), and through-hole mounting configuration. The 5505504F uses 5mm T-1 3/4 lens sizing, which is mechanically compatible with the original 5.00mm diameter specification for circuit board indicator applications.

Key parameters determining substitution eligibility:

• Electrical: Color, wavelength, current, voltage, brightness, viewing angle
• Mechanical: Lens type, lens style, mounting type, form factor
• Environmental: Moisture sensitivity level, compliance certifications

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5505504F serves as the direct active substitute for the obsolete 5505504. The 5505504F maintains full electrical and mechanical compatibility while offering the advantage of active product status, ensuring ongoing availability and supply chain support.

The 5505504F is RoHS3 compliant, providing enhanced environmental and regulatory alignment compared to the original part. Both components share identical REACH and ECCN classifications, confirming regulatory equivalence for international applications.

Selection of the 5505504F is appropriate for new designs, redesigns of legacy systems, and production continuity where the 5505504 is no longer available. The active status of 5505504F eliminates obsolescence risk and supports long-term manufacturing schedules.

Frequently Asked Questions (FAQ)

Q: Can the 5505504F directly replace the 5505504 in existing circuit board designs?

A: Yes. The 5505504F maintains identical electrical specifications (20mA, 2.2V, 125mcd, 24° viewing angle, 635nm wavelength) and mechanical form factor (through-hole, round domed clear lens). The lens size designation difference (5.00mm Dia versus 5mm T-1 3/4) represents equivalent mechanical sizing for circuit board indicator applications.

Q: What is the primary reason to transition from 5505504 to 5505504F?

A: The 5505504 is classified as obsolete product status. The 5505504F is an active product within the same 550 series, ensuring continued availability, supply chain reliability, and regulatory support for ongoing production and new designs.

Q: Are there compliance differences between these parts?

A: Both parts share identical REACH and ECCN classifications. The 5505504F includes RoHS3 compliance certification, providing additional environmental regulatory alignment. Both components maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What packaging options are available?

A: The 5505504 is supplied in standard packaging. The 5505504F is available in bulk packaging, suitable for high-volume production environments and automated assembly processes.

Q: Are there any mechanical considerations for PCB layout?

A: Both parts use through-hole mounting with identical electrical and optical characteristics. PCB footprint and hole spacing remain compatible. The lens diameter specification (5.00mm Dia / 5mm T-1 3/4) is mechanically equivalent for standard circuit board indicator applications.