Dialight 5219249F LED Yellow Clear 5MM T/H Equivalent & Substitute Parts

Part Overview

The Dialight 5219249F is an active yellow LED indication component designed for through-hole mounting applications. This discrete 5mm radial LED operates at 2.1V forward voltage with a 588nm dominant wavelength, delivering 90mcd luminous intensity. The component is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to address inventory availability, extended lead times, or design flexibility requirements while maintaining functional equivalence within specified electrical and mechanical parameters.

Substiute Parts

5219249F

DialightIn Stock: 9375219249F Datasheet

Current PartRFQ

WP7113YT

KingbrightIn Stock: 15396WP7113YT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5219249F is determined by the following critical parameters:

Electrical Parameters (Must Match):

• Forward voltage (Vf): 2.1V
• Test current: 20mA
• Dominant wavelength: 588nm (yellow spectrum)

Mechanical Parameters (Must Match):

• Lens size: 5mm diameter
• Mounting type: Through hole radial
• Lens color: Yellow
• Lens transparency: Clear

Compliance Parameters (Must Match):

• RoHS3 compliance
• REACH unaffected status
• ECCN: EAR99

The Kingbright WP7113YT meets all critical electrical and mechanical substitution criteria. Minor variations in millicandela rating (80mcd vs. 90mcd), viewing angle (20° vs. 16°), and maximum height (8.60mm vs. 9.66mm) fall within acceptable tolerance ranges for standard LED indication applications and do not preclude functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the Dialight 5219249F and Kingbright WP7113YT are active products with ROHS3 compliance and REACH unaffected status. Selection between these components should be based on:

Dialight 5219249F: Primary selection when higher luminous intensity (90mcd) is required for the application or when exact height specification (9.66mm max) is critical to PCB layout constraints.

Kingbright WP7113YT: Suitable alternative when inventory availability is a priority or when the lower luminous intensity (80mcd) and reduced height (8.60mm max) are compatible with application requirements. The wider viewing angle (20° vs. 16°) may provide improved visibility in certain mounting orientations.

Both components maintain identical forward voltage, test current, and dominant wavelength specifications, ensuring circuit-level compatibility when substituted in standard LED indication circuits.

Frequently Asked Questions (FAQ)

Q: Can the Kingbright WP7113YT replace the Dialight 5219249F in all applications?

A: The Kingbright WP7113YT is electrically and mechanically compatible for standard LED indication applications. The 10mcd reduction in luminous intensity and 1.06mm reduction in maximum height are within typical tolerance ranges for indication LEDs. Verify that the lower brightness and reduced height do not conflict with specific application visibility or mounting requirements.

Q: What is the significance of the T-1 3/4 package designation on the Kingbright part?

A: T-1 3/4 is a standard industry designation for 5mm diameter through-hole LEDs. This designation is functionally equivalent to the 5mm radial package specification and indicates compatibility with standard 5mm LED mounting footprints.

Q: Are there compliance differences between these two parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS classifications. No compliance barriers exist for substitution.

Q: How do the viewing angles differ, and does this affect substitution?

A: The Dialight 5219249F has a 16° viewing angle, while the Kingbright WP7113YT has a 20° viewing angle. The wider viewing angle of the Kingbright part provides improved visibility across a broader range of observation angles and does not restrict substitution in standard indication applications.

Q: What should be verified before substituting these parts in production?

A: Verify that circuit design accommodates the 10mcd luminous intensity difference and that PCB layout tolerates the 1.06mm height variation. Both parts operate at identical forward voltage and test current, requiring no circuit modifications.