Dialight 5520744 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5520744 is a dual-level LED circuit board indicator featuring integrated green and yellow LEDs in a 5mm T-1 3/4 through-hole right-angle configuration. This component is designed for applications requiring simultaneous dual-color status indication with diffused lens optics and standardized electrical characteristics.

The 5520744 has reached obsolete product status. Identifying compatible substitute parts is necessary to maintain design continuity and ensure supply chain availability for new production runs and field replacements.

Substiute Parts

5520744

DialightIn Stock: 11325520744 Datasheet

Current PartRFQ

5520744F

DialightIn Stock: 13335520744F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5520744 is determined by strict equivalence across the following critical parameters:

• Electrical Characteristics: Voltage rating (2.1V), current rating (20mA), and millicandela output (8.7mcd) must remain identical
• Optical Properties: Peak wavelengths (565nm green, 585nm yellow), viewing angle (50°), and lens type (diffused) must match
• Mechanical Configuration: Dual-level (2 High) configuration, 5mm T-1 3/4 form factor, and right-angle through-hole mounting must be preserved
• Color Specification: Green and yellow dual-color arrangement must be maintained

The substitute part 5520744F meets all these criteria while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5520744F is a direct functional equivalent to the obsolete 5520744. All critical electrical, optical, and mechanical parameters are identical. The 5520744F offers the following advantages:

• Active Product Status: The substitute maintains current manufacturing and support from Dialight
• Regulatory Compliance: RoHS3 compliance certification is provided for the 5520744F, supporting modern environmental and regulatory requirements
• Supply Continuity: Bulk packaging availability ensures consistent sourcing for production requirements
• Identical Performance: Electrical characteristics, optical output, and mechanical form factor are preserved without modification to circuit design or PCB layout

Selection of the 5520744F eliminates obsolescence risk while maintaining complete design compatibility with existing applications using the 5520744.

Frequently Asked Questions (FAQ)

Q: Can the 5520744F be used as a direct replacement for the 5520744 without circuit modifications?

A: Yes. The 5520744F is electrically and mechanically identical to the 5520744. No circuit design changes, PCB layout modifications, or firmware updates are required. The component can be substituted on a one-to-one basis.

Q: What is the difference between the 5520744 and 5520744F?

A: The primary differences are product status and packaging. The 5520744 is obsolete with through-hole mounting specifications, while the 5520744F is an active product supplied in bulk packaging. All functional parameters—voltage, current, wavelength, viewing angle, and form factor—are identical.

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

A: The 5520744F includes RoHS3 compliance certification, which is not specified for the obsolete 5520744. Both parts maintain REACH Unaffected status and EAR99 export classification. The 5520744F is recommended for applications requiring modern environmental compliance documentation.

Q: What is the viewing angle specification, and does it affect application suitability?

A: Both parts feature a 50° viewing angle with diffused lens optics. This specification defines the cone of light visibility from the LED. The 50° angle is suitable for standard circuit board indicator applications where the LED is viewed from multiple angles within a typical operator viewing range.

Q: Can these parts be used in high-temperature or moisture-sensitive applications?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture-related handling restrictions. However, the voltage and current ratings (2.1V, 20mA) and thermal characteristics must be evaluated against specific application temperature requirements. The specifications provided do not include thermal operating range data.

Q: What packaging options are available?

A: The 5520744 was supplied in standard packaging (not specified). The 5520744F is available in bulk packaging, which is typical for production quantities. Contact the manufacturer for specific packaging configurations or tape-and-reel options if required.