LED Circuit Board Indicator 5505104 Equivalent & Substitute Parts

Part Overview

The Dialight 5505104 is a through-hole mounted LED circuit board indicator featuring a single red diffused lens with a 5.00mm diameter round domed top. Designed for 2.1V operation at 20mA, this component delivers 34 millicandela with a 50° viewing angle. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing production support and design continuity.

Substiute Parts

5505104

DialightIn Stock: 7485505104 Datasheet

Current PartRFQ

5505104F

DialightIn Stock: 21205505104F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5505104 is determined by strict alignment across the following critical parameters:

• Electrical Compatibility: Voltage rating (2.1V) and current rating (20mA) must match exactly
• Optical Characteristics: Color (red), lens type (diffused), and millicandela rating (34mcd) must be identical
• Mechanical Compatibility: Mounting type (through hole), viewing angle (50°), and lens diameter (5.00mm) must be preserved
• Configuration: Single LED configuration required

The substitute part 5505104F meets these criteria while offering improved product status (active) and compliance certification (ROHS3 Compliant). The wavelength peak differs slightly (650nm vs 635nm), which remains within acceptable red LED spectrum parameters for circuit board indicator applications.

Parameter Comparison

Engineering Selection Recommendations

The 5505104F serves as the direct substitute for the obsolete 5505104. Both parts maintain identical electrical and optical specifications across voltage, current, brightness, and viewing angle parameters. The 5505104F offers the advantage of active product status, ensuring continued availability and supply chain support. Additionally, the 5505104F carries ROHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Both parts share identical REACH status (REACH Unaffected) and ECCN classification (EAR99), confirming regulatory equivalence for export and compliance purposes.

Frequently Asked Questions (FAQ)

Q: Can 5505104F be used as a direct replacement for 5505104 in existing circuit board designs?

A: Yes. The 5505104F maintains identical voltage (2.1V), current (20mA), brightness (34mcd), viewing angle (50°), and through-hole mounting specifications. No circuit modifications are required.

Q: What is the significance of the wavelength difference between 635nm and 650nm?

A: Both wavelengths fall within the standard red LED spectrum. The 15nm difference represents a shift toward the longer wavelength end of the red spectrum but does not affect functional performance in circuit board indicator applications where color perception is the primary requirement.

Q: Why is the 5505104 classified as obsolete?

A: Obsolete status indicates the part is no longer in active production. The 5505104F, as an active product from the same manufacturer and series, provides continuity for applications requiring this LED indicator specification.

Q: Are there packaging differences between these parts?

A: The 5505104 is listed with dash packaging notation, while 5505104F is supplied in bulk packaging. Both are through-hole mounted components suitable for standard PCB assembly processes.

Q: Do both parts meet current regulatory requirements?

A: The 5505104F is ROHS3 compliant and REACH unaffected. Both parts carry identical ECCN (EAR99) and HTSUS classifications, confirming regulatory equivalence for procurement and compliance documentation.