LED Circuit Board Indicator 5510001901F Equivalent & Substitute Parts

Part Overview

The Dialight 5510001901F is an active LED Circuit Board Indicator designed for through-hole, right-angle mounting applications. This single yellow diffused LED operates at 2.1V with a 20mA current rating and delivers 6.3mcd brightness output. The component is housed in a 3mm T-1 package with a round domed top lens. As an active product with full RoHS3 compliance and unlimited moisture sensitivity rating, equivalent and substitute parts may be required for inventory optimization, regional availability, or specific application constraints.

Substiute Parts

5510001901F

DialightIn Stock: 7165510001901F Datasheet

Current PartRFQ

H100CYDL

Bivar Inc.In Stock: 1274H100CYDL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5510001901F is determined by the following critical parameters:

Primary Compatibility Criteria:

• Color: Yellow (585nm peak wavelength)
• Configuration: Single LED
• Lens Size: 3mm, T-1 package
• Lens Style: Round with domed top
• Mounting Type: Through hole, right angle
• Viewing Angle: 45°

Secondary Compatibility Parameters:

• Voltage Rating: 2.1V nominal (tolerance range acceptable)
• Current Rating: 20mA nominal
• Millicandela Rating: 6.3mcd (brightness output)
• Lens Type: Diffused construction

The Bivar Inc. H100CYDL meets the primary compatibility criteria across all mechanical and optical specifications. Voltage and brightness parameters fall within acceptable substitution ranges for circuit board indicator applications, with the H100CYDL operating at 1.9V and delivering 4mcd output.

Parameter Comparison

Engineering Selection Recommendations

Both the Dialight 5510001901F and Bivar Inc. H100CYDL are active products with full RoHS3 compliance and MSL Level 1 ratings, confirming equivalent environmental and regulatory standing. The H100CYDL operates at a lower forward voltage (1.9V versus 2.1V) and produces reduced luminous intensity (4mcd versus 6.3mcd), making it suitable for applications where lower brightness output is acceptable or where circuit voltage constraints favor the lower operating point. Both components share identical mechanical form factors, optical wavelength, and mounting configurations, ensuring direct PCB compatibility. Selection between these parts should be based on specific circuit voltage requirements and brightness specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can the H100CYDL directly replace the 5510001901F in existing designs?

A: Mechanical and optical compatibility is confirmed across all form factor parameters. However, the H100CYDL operates at 1.9V versus 2.1V and delivers 4mcd versus 6.3mcd. Direct replacement requires verification that the target circuit can accommodate the lower voltage and reduced brightness output.

Q: What are the key differences between these two parts?

A: The primary differences are forward voltage (1.9V vs. 2.1V), millicandela rating (4mcd vs. 6.3mcd), and lens tinting (H100CYDL is non-tinted diffused versus tinted diffused on the 5510001901F). All other parameters, including package size, mounting type, wavelength, and compliance certifications, are identical.

Q: Are both parts suitable for high-reliability applications?

A: Both components carry RoHS3 compliance and MSL Level 1 ratings, confirming equivalent environmental qualification. Product status is active for both manufacturers, ensuring ongoing availability and support.

Q: What packaging formats are available?

A: The 5510001901F is supplied in bulk packaging, while the H100CYDL is supplied in tray packaging. Packaging format should be confirmed against procurement and assembly requirements.

Q: Do these parts have identical viewing angles?

A: Yes, both components specify a 45° viewing angle, confirming optical performance parity in this parameter.