Dialight 5520911 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5520911 is a dual-level red LED circuit board indicator designed for through-hole, right-angle mounting applications. This component features a 5mm T-1 3/4 diffused, tinted lens with a domed top, operating at 1.8V with 2mA current consumption and 2mcd brightness output. The main part number 5520911 is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. Active equivalent models are available from the same manufacturer with identical electrical and mechanical specifications.

Substiute Parts

5520911

DialightIn Stock: 10345520911 Datasheet

Current PartRFQ

5520911803F

DialightIn Stock: 11295520911803F Datasheet

DirectRFQ

5520911F

DialightIn Stock: 14675520911F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5520911 is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitutes:

• Color: Red (x 2)
• Configuration: 2 High
• Wavelength - Peak: 635nm
• Current Rating: 2mA
• Voltage Rating: 1.8V
• Millicandela Rating: 2mcd
• Viewing Angle: 50°
• Lens Type: Diffused, Tinted
• Lens Style: Round with Domed Top
• Lens Size: 5mm, T-1 3/4
• Mounting Type: Through Hole, Right Angle
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts 5520911803F and 5520911F meet all these parameters and are classified as active products, making them direct functional equivalents to the obsolete 5520911.

Parameter Comparison

Engineering Selection Recommendations

Both 5520911803F and 5520911F are direct substitutes for the obsolete 5520911. Selection between these active alternatives should be based on packaging requirements and compliance certifications:

5520911803F is supplied in bulk packaging and carries ROHS3 compliance certification.

5520911F is supplied in bulk packaging and carries ROHS3 compliance certification.

Both parts maintain identical electrical performance, mechanical form factor, and environmental compliance ratings. The choice between them depends on procurement specifications and inventory management requirements specific to your application.

Frequently Asked Questions (FAQ)

Q: Can 5520911803F and 5520911F be used interchangeably with 5520911?

A: Yes. Both substitute parts meet all electrical and mechanical parameters of the obsolete 5520911, including voltage rating, current consumption, brightness output, lens specifications, and mounting configuration.

Q: What is the primary reason for substitution?

A: The original part number 5520911 is classified as obsolete. The active substitute parts 5520911803F and 5520911F provide continued availability with identical specifications.

Q: Are there packaging differences between the substitute parts?

A: Both 5520911803F and 5520911F are supplied in bulk packaging. The original 5520911 was supplied with unspecified packaging. Bulk packaging is standard for both active alternatives.

Q: Do the substitute parts meet RoHS compliance?

A: Yes. Both 5520911803F and 5520911F are ROHS3 compliant. The original 5520911 RoHS status was not specified.

Q: Are the optical and electrical characteristics identical?

A: Yes. All three part numbers share identical specifications: 635nm peak wavelength, 2mcd brightness, 50° viewing angle, 2mA current rating, 1.8V voltage rating, diffused tinted lens, and 5mm T-1 3/4 form factor.

Q: What is the mounting configuration?

A: All three parts feature through-hole, right-angle mounting for circuit board integration.