Dialight 5510802F LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5510802F is a blue LED circuit board indicator (CBI) featuring a 3mm T-1 through-hole right-angle configuration. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement. The part delivers 12.5 millicandela at 20mA forward current with a 4.6V rating and 70° viewing angle. Substitute parts must maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

5510802F

DialightIn Stock: 7435510802F Datasheet

Current PartRFQ

5510803F

DialightIn Stock: 15755510803F Datasheet

DirectRFQ

5512802F

DialightIn Stock: 7585512802F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5510802F is determined by strict alignment across the following critical parameters:

• Color and Wavelength: Blue at 428nm peak wavelength
• Electrical Specifications: 20mA forward current, 4.6V voltage rating, 12.5mcd brightness
• Optical Characteristics: 70° viewing angle, round domed lens
• Mechanical Form Factor: 3mm T-1 through-hole right-angle mounting
• Compliance and Environmental: RoHS compliance, MSL 1 rating, REACH unaffected status

The identified substitutes (5510803F and 5512802F) are both Dialight Series 551 components sharing the same mounting configuration, lens geometry, and core electrical parameters. Both substitutes carry active product status with current manufacturing support and enhanced RoHS3 compliance certification.

Parameter Comparison

Engineering Selection Recommendations

5510803F is the primary substitute for the obsolete 5510802F. This part maintains complete electrical and optical specification alignment, including 20mA current, 4.6V voltage rating, 12.5mcd brightness, and 70° viewing angle. The 5510803F carries active product status with ROHS3 compliance certification, ensuring long-term availability and regulatory compliance for new designs and production runs.

5512802F is a secondary substitute option within the Series 551 family. While it shares the same blue color, round domed lens geometry, 3mm form factor, and through-hole right-angle mounting, specific electrical parameters (current, voltage, brightness, and viewing angle) are not provided in available documentation. This part is suitable only when complete electrical specification matching is not a design requirement.

Both substitutes meet MSL 1 (unlimited moisture sensitivity) and REACH unaffected status, maintaining environmental compliance equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can the 5510803F directly replace the 5510802F in existing designs? A: Yes. The 5510803F maintains identical electrical specifications (20mA, 4.6V, 12.5mcd), optical characteristics (70° viewing angle, 428nm wavelength), and mechanical form factor (3mm T-1 through-hole right-angle). No circuit modifications are required.

Q: What is the difference between the 5510803F and 5512802F? A: Both are Dialight Series 551 blue LEDs with 3mm round domed lenses and right-angle through-hole mounting. The 5510803F provides complete specification documentation matching the original 5510802F. The 5512802F lacks detailed electrical parameter documentation, making it suitable only for applications where full specification matching is not critical.

Q: Why is the 5510802F classified as obsolete? A: The 5510802F has been discontinued by Dialight. The 5510803F and 5512802F represent the current active product line within the Series 551 family and are recommended for all new procurement and design activities.

Q: Are there any compliance differences between the original and substitute parts? A: The original 5510802F carries RoHS compliance certification. Both substitutes carry ROHS3 compliance, which represents an enhanced regulatory standard. All three parts maintain REACH unaffected status and MSL 1 rating.

Q: What packaging options are available for the substitutes? A: Both the 5510803F and 5512802F are supplied in bulk packaging, suitable for production assembly and component procurement workflows.