Dialight 5553003 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5553003 is a 2mm red LED circuit board indicator designed for through-hole mounting applications requiring 5V operation at 6mA current draw. This component features a clear lens with round domed top configuration and delivers 1.9mcd brightness output at a 40° viewing angle. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing production support and design continuity.

Substiute Parts

5553003

DialightIn Stock: 8285553003 Datasheet

Current PartRFQ

5553003F

DialightIn Stock: 11005553003F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5553003 is determined by strict alignment of the following critical parameters:

• Color: Red (650nm wavelength peak)
• Configuration: Single LED
• Voltage Rating: 5V
• Current: 6mA
• Mounting Type: Through Hole
• Lens Size: 2.00mm Dia
• Viewing Angle: 40°
• Lens Type: Clear

The substitute part 5553003F meets all these core electrical and mechanical requirements, enabling direct functional replacement in circuit board indicator applications. The substitute maintains identical voltage, current, wavelength, mounting configuration, and optical characteristics while offering improved brightness output and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5553003F serves as the direct substitute for the obsolete 5553003 LED circuit board indicator. Both components share identical electrical specifications (5V, 6mA) and mechanical form factors (2.00mm through-hole mounting), ensuring pin-compatible replacement without circuit modification.

The 5553003F offers two significant advantages over the original part: active product status ensures continued availability and manufacturing support, and ROHS3 compliance satisfies modern regulatory requirements for new designs and production runs. The increased brightness output (3.1mcd versus 1.9mcd) provides enhanced visibility while maintaining the same current draw and voltage parameters.

For applications requiring strict compliance with RoHS regulations or long-term component availability, the 5553003F is the appropriate selection. The substitute maintains full functional equivalence for all circuit board indicator applications originally designed for the 5553003.

Frequently Asked Questions (FAQ)

Q: Can the 5553003F directly replace the 5553003 without PCB modifications?

A: Yes. Both components feature identical through-hole mounting configurations, pin spacing, and electrical ratings (5V, 6mA). No circuit board layout changes are required for substitution.

Q: What is the difference in brightness between these parts?

A: The 5553003F delivers 3.1mcd compared to the 5553003's 1.9mcd output. Both operate at identical current and voltage levels. The increased brightness results from improved LED die efficiency in the newer design.

Q: Are there compliance differences between the main part and substitute?

A: Yes. The 5553003 is RoHS non-compliant, while the 5553003F meets ROHS3 standards. Both maintain REACH Unaffected status. For new production or regulated applications, the 5553003F is required.

Q: What packaging is available for the 5553003F?

A: The 5553003F is supplied in bulk packaging, compared to the original part's standard packaging designation.

Q: Is the 5553003F available in inventory?

A: Yes. The 5553003F has 1,090 pieces in stock as new original inventory, while the obsolete 5553003 has 803 pieces remaining.

Q: Do both parts share the same optical characteristics?

A: Yes. Both components feature 650nm peak wavelength red color, 40° viewing angle, clear lens type, and 2.00mm diameter lens size. Optical performance is equivalent for indicator applications.