Dialight 5500404 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5500404 is a through-hole mounted LED circuit board indicator featuring a single red diffused lens with a 5.00mm diameter round domed top. Designed for 2V operation at 20mA, this component delivers 12.3 millicandela at a 60-degree viewing angle and is classified as obsolete. Due to its obsolete product status, identifying active equivalent parts is essential for ongoing production support, design updates, and component procurement continuity.

Substiute Parts

5500404

DialightIn Stock: 7865500404 Datasheet

Current PartRFQ

5500404F

DialightIn Stock: 27685500404F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Dialight 5500404F serves as a direct substitute for the obsolete 5500404. Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Color: Red (635nm peak wavelength)
• Configuration: Single LED
• Current Rating: 20mA
• Voltage Rating: 2V
• Millicandela Rating: 12.3mcd
• Viewing Angle: 60°
• Lens Type: Diffused
• Mounting Type: Through Hole
• Electrical and environmental compliance: REACH Unaffected, EAR99 classification

The 5500404F maintains identical electrical performance and optical characteristics while offering active product status and RoHS3 compliance, making it suitable for direct replacement in applications currently using the 5500404.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5500404F is the appropriate selection for applications currently specified with the 5500404. The substitute part maintains full electrical and optical equivalence while offering the advantage of active product status, ensuring long-term availability and supply chain continuity. The 5500404F carries RoHS3 compliance certification, providing enhanced environmental regulatory alignment for new designs and production updates. Both parts satisfy identical REACH and export control requirements (EAR99), making the transition transparent from a compliance perspective.

Frequently Asked Questions (FAQ)

Q: Can the 5500404F be used as a direct replacement for the 5500404 in existing designs?

A: Yes. The 5500404F is electrically and optically identical to the 5500404, with matching voltage rating (2V), current rating (20mA), luminous intensity (12.3mcd), viewing angle (60°), and through-hole mounting configuration. No circuit modifications are required.

Q: What is the primary difference between these two part numbers?

A: The 5500404 is obsolete, while the 5500404F is an active product. The 5500404F also carries RoHS3 compliance certification. Both parts are functionally equivalent.

Q: Are there packaging differences between the 5500404 and 5500404F?

A: The 5500404 was supplied in standard packaging, while the 5500404F is available in bulk packaging. This distinction does not affect component performance or compatibility.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 5500404 and 5500404F are REACH Unaffected and classified as EAR99 for export control purposes. The 5500404F additionally meets RoHS3 requirements.

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

A: Both parts feature a 60-degree viewing angle with a diffused lens type. This parameter is identical across both components and does not impact substitution eligibility.