Dialight 5510501F LED Circuit Board Indicator Equivalent & Substitute Parts

Part Overview

The Dialight 5510501F is a 3mm red LED circuit board indicator designed for through-hole, right-angle mounting applications. This single red diffused LED operates at 5V with a 10mA current rating and delivers 29 millicandela brightness at a 60° viewing angle. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the Dialight 551 series, ensuring direct functional equivalence in circuit board applications.

Substiute Parts

5510501F

DialightIn Stock: 9835510501F Datasheet

Current PartRFQ

5510507F

DialightIn Stock: 18715510507F Datasheet

DirectRFQ

5510509F

DialightIn Stock: 21855510509F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Dialight 5510501F are qualified based on strict electrical and mechanical parameter matching within the 551 series. The following parameters determine substitution eligibility:

• Color: Red
• Wavelength - Peak: 635nm
• Configuration: Single
• Current Rating: 10mA
• Voltage Rating: 5V
• Millicandela Rating: 29mcd
• Viewing Angle: 60°
• Lens Type: Diffused, Tinted
• Lens Style: Round with Domed Top
• Lens Size: 3mm, T-1
• Mounting Type: Through Hole, Right Angle
• Series: 551
• RoHS Status: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)

All substitute parts maintain identical specifications across these parameters, ensuring functional equivalence in circuit board indicator applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—5510501F, 5510507F, and 5510509F—are active production components with identical electrical and mechanical specifications. Each part carries ROHS3 compliance and MSL rating 1 (unlimited moisture sensitivity), meeting the same regulatory and environmental standards. Selection between these parts is based on inventory availability and procurement requirements rather than technical performance differences. All parts are suitable for direct substitution in circuit board indicator applications requiring 5V, 10mA red LED operation with 29mcd brightness output.

Frequently Asked Questions (FAQ)

Q: Can 5510507F and 5510509F be used interchangeably with 5510501F?

A: Yes. All three parts share identical electrical parameters (5V, 10mA), optical characteristics (635nm peak wavelength, 29mcd, 60° viewing angle), and mechanical specifications (3mm T-1 through-hole right-angle mounting). They are functionally equivalent for circuit board indicator applications.

Q: What determines if a part is a valid substitute?

A: Substitution is based on matching all critical parameters: color, wavelength, current rating, voltage rating, brightness output, viewing angle, lens type and style, package size, and mounting configuration. All three parts maintain these specifications within the Dialight 551 series.

Q: Are there any compliance differences between these parts?

A: No. All three parts carry identical RoHS3 compliance status and MSL rating 1 (unlimited). They meet the same regulatory and environmental requirements.

Q: Does packaging affect substitution eligibility?

A: All three parts are supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility for circuit board assembly applications.

Q: What is the primary reason to select one part over another?

A: Inventory availability is the primary selection criterion. The 5510509F has the highest stock level (2168 pcs), followed by 5510507F (1779 pcs) and 5510501F (958 pcs). All parts deliver identical performance in the application.