Dialight 5552303 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5552303 is a 2mm green LED circuit board indicator designed for through-hole, right-angle mounting applications. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance requirements. The part delivers a peak wavelength of 565nm with a 2.5mcd brightness rating at 4.7mA operating current and 5V voltage rating, suitable for standard indicator applications requiring clear lens visibility at 40° viewing angle.

Substiute Parts

5552303

DialightIn Stock: 9625552303 Datasheet

Current PartRFQ

5552303F

DialightIn Stock: 21025552303F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Dialight 5552303 is determined by strict equivalence across the following critical parameters:

• Color: Green (565nm peak wavelength)
• Configuration: Single LED
• Current Rating: 4.7mA
• Brightness: 2.5mcd
• Viewing Angle: 40°
• Lens Characteristics: Clear, Round with Domed Top
• Physical Size: 2.00mm Dia
• Voltage Rating: 5V
• Mounting: Through Hole, Right Angle
• Series: 555

The substitute part 5552303F maintains identical electrical and mechanical specifications while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5552303F serves as the direct active substitute for the obsolete 5552303. Both parts maintain identical electrical performance and mechanical form factor, ensuring direct compatibility in existing circuit designs without modification.

The primary distinction between these parts is product status and regulatory compliance. The 5552303F carries active product status with ROHS3 compliance, whereas the 5552303 is classified as obsolete and RoHS non-compliant. For new designs or production continuity, the 5552303F is the appropriate selection.

Both parts share identical moisture sensitivity classification (MSL 1 - Unlimited) and REACH status (REACH Unaffected), indicating equivalent handling and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5552303F directly replace the 5552303 in existing designs?

A: Yes. The 5552303F is electrically and mechanically identical to the 5552303. No circuit modifications are required for substitution.

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

A: The 5552303F is the active production variant with ROHS3 compliance. The 5552303 is obsolete and RoHS non-compliant. Electrical specifications and physical dimensions are identical.

Q: Are there packaging differences between 5552303 and 5552303F?

A: The 5552303F is supplied in bulk packaging, whereas the 5552303 uses standard packaging. Component specifications remain unchanged.

Q: What are the critical parameters for substitution?

A: Substitution requires matching: green color (565nm), 4.7mA current, 2.5mcd brightness, 40° viewing angle, clear round domed lens, 2.00mm diameter, 5V rating, and through-hole right-angle mounting configuration.

Q: Is the 5552303F suitable for new product designs?

A: Yes. The active product status and ROHS3 compliance make the 5552303F the appropriate choice for new designs requiring this LED indicator specification.