Dialight 5219918801F LED Blue Clear 3MM Through-Hole Equivalent & Substitute Parts

Part Overview

The Dialight 5219918801F is an active blue LED indication component designed for through-hole mounting applications. This discrete 4.6V radial LED operates at 470nm wavelength with 460mcd luminous intensity and a 50° viewing angle. The component is housed in a 3mm radial package with a clear domed lens. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain inventory optimization across manufacturing operations.

Substiute Parts

5219918801F

DialightIn Stock: 11475219918801F Datasheet

Current PartRFQ

5219918F

DialightIn Stock: 21185219918F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5219918801F is determined by strict equivalence across the following critical parameters:

• Color and Wavelength: Blue 470nm dominant wavelength (464nm peak)
• Electrical Characteristics: 4.6V forward voltage, 20mA test current
• Optical Performance: 460mcd luminous intensity, 50° viewing angle
• Physical Form Factor: 3mm radial through-hole package, round domed lens, 2.92mm lens diameter, 6.35mm maximum height
• Compliance and Status: Active product status, ROHS3 compliant, REACH unaffected, MSL 1

The substitute part 5219918F meets all these parameters identically, establishing it as a parametric equivalent within the Dialight 521 series.

Parameter Comparison

Engineering Selection Recommendations

Both the Dialight 5219918801F and 5219918F are active products with identical electrical, optical, and mechanical specifications. Selection between these parts may be based on inventory availability and supply chain considerations. The 5219918F currently maintains higher inventory levels (2108 pcs) compared to the 5219918801F (1096 pcs). Both components maintain full ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across manufacturing environments. MSL 1 rating indicates unlimited shelf life under standard storage conditions for both parts.

Frequently Asked Questions (FAQ)

Q: Can the 5219918F be used as a direct replacement for the 5219918801F?

A: Yes. The 5219918F is a parametric equivalent with identical electrical characteristics (4.6V forward voltage, 20mA test current), optical performance (460mcd, 50° viewing angle, 470nm wavelength), physical dimensions (3mm radial package, 6.35mm height), and compliance certifications (ROHS3, REACH unaffected).

Q: Are there any differences in mounting or PCB layout between these parts?

A: No. Both components use identical through-hole radial mounting with the same 3mm package form factor and 6.35mm maximum height. PCB footprints and lead spacing are equivalent.

Q: Do both parts have the same compliance certifications?

A: Yes. Both the 5219918801F and 5219918F are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity level) ratings.

Q: What is the difference between the part numbers 5219918801F and 5219918F?

A: Both parts share the base product number 5219918 within the Dialight 521 series. The difference in suffix designation does not reflect changes to electrical, optical, or mechanical parameters. The parts are parametric equivalents.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that design specifications call for a blue 470nm LED with 4.6V forward voltage, 460mcd intensity, 50° viewing angle, and 3mm through-hole radial mounting. Both parts meet these requirements identically.