Dialight 5511201F LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5511201F is an active LED circuit board indicator designed for through-hole, right-angle mounting applications. This single yellow diffused LED operates at 1.8V with a 2mA current draw and delivers 1.6mcd brightness output. The component is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1), making it suitable for standard PCB assembly environments. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory constraints require component alternatives.

Substiute Parts

5511201F

DialightIn Stock: 10695511201F Datasheet

Current PartRFQ

5511207F

DialightIn Stock: 15575511207F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Dialight 5511207F qualifies as a direct substitute for the 5511201F based on identical electrical and mechanical parameters. Substitution eligibility is determined by the following critical parameters:

• Color: Yellow (585nm peak wavelength)
• Current Rating: 2mA
• Voltage Rating: 1.8V
• Millicandela Output: 1.6mcd
• Viewing Angle: 60°
• Lens Configuration: Diffused, Tinted; Round with Domed Top
• Physical Package: 3mm, T-1 Through Hole, Right Angle
• Compliance: ROHS3 Compliant, MSL 1

Both parts belong to the Dialight 551 series and maintain identical optical, electrical, and mechanical specifications. The substitute part carries the same regulatory certifications and moisture sensitivity rating, confirming functional interchangeability in circuit board applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 5511201F and 5511207F are active products from Dialight's 551 series with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on inventory availability and lead time requirements. The 5511207F currently maintains higher stock levels (1529 pcs vs. 1005 pcs), which may provide supply chain advantages for high-volume production runs. Both parts carry identical electrical performance characteristics, compliance certifications, and moisture sensitivity ratings, confirming direct interchangeability without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the 5511207F be used as a direct replacement for the 5511201F in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage rating, current draw, brightness output, viewing angle, and physical package dimensions. No circuit modifications are required.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts carry identical ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity ratings. They meet the same regulatory requirements for PCB assembly and deployment.

Q: What determines whether a part qualifies as a substitute?

A: Substitution eligibility is based on matching all critical parameters: color and wavelength, electrical ratings (voltage and current), optical output (millicandela), viewing angle, lens configuration, physical package dimensions, and mounting type. Both parts must maintain identical compliance certifications.

Q: Are there any packaging or inventory considerations when switching between these parts?

A: Both parts are supplied in bulk packaging. The 5511207F has higher current inventory availability, which may reduce lead times for urgent orders or large-volume requirements.

Q: Do these parts have different part number designations for a reason?

A: The different base product numbers (5511201 vs. 5511207) reflect Dialight's internal product line organization. Despite distinct part numbers, the parts maintain identical electrical and mechanical specifications, confirming functional equivalence.