Dialight 5511301F LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5511301F is an active LED circuit board indicator in the 551 series, featuring a single green diffused lens with 3mm T-1 through-hole right-angle mounting. This component operates at 1.9V with 2mA current draw and delivers 1.6mcd brightness at a 565nm peak wavelength. The part is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), making it suitable for standard industrial and commercial circuit board applications. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical form factor, and mounting configuration to ensure direct interchangeability in circuit designs.

Substiute Parts

5511301F

DialightIn Stock: 8145511301F Datasheet

Current PartRFQ

5511303F

DialightIn Stock: 18245511303F Datasheet

DirectRFQ

5511304F

DialightIn Stock: 22385511304F Datasheet

DirectRFQ

5511307F

DialightIn Stock: 21705511307F Datasheet

DirectRFQ

SSF-LXH103GD

Lumex Opto/Components Inc.In Stock: 19419SSF-LXH103GD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5511301F is determined by strict alignment of the following critical parameters: color (green), wavelength peak (565nm), lens configuration (diffused, tinted round domed top), lens size (3mm T-1), mounting type (through-hole right angle), and compliance certifications (ROHS3, MSL 1).

Direct manufacturer equivalents within the Dialight 551 series (5511303F, 5511304F, 5511307F) maintain identical electrical specifications (1.9V, 2mA, 1.6mcd) and mechanical form factors, ensuring pin-for-pin compatibility and interchangeable circuit board placement.

The Lumex Opto/Components Inc. part SSF-LXH103GD shares the same optical and mechanical characteristics (green color, 565nm wavelength, 3mm T-1 diffused domed lens, 60° viewing angle, through-hole right-angle mounting) but operates at different electrical parameters (2.1V, 20mA, 30mcd). This part is classified as a similar substitute suitable only for applications where higher brightness and increased current consumption are acceptable design modifications.

Parameter Comparison

Engineering Selection Recommendations

For direct pin-for-pin replacement without circuit modification, select from the Dialight 551 series direct equivalents: 5511303F, 5511304F, or 5511307F. All three parts maintain identical electrical and optical specifications to the 5511301F, ensuring seamless integration into existing designs. All substitute options are active products with ROHS3 compliance and unlimited MSL rating, confirming suitability for standard manufacturing and storage environments.

The Lumex Opto/Components Inc. SSF-LXH103GD part is suitable only for applications requiring increased brightness output (30mcd versus 1.6mcd) and capable of accommodating higher current draw (20mA versus 2mA) and slightly elevated voltage (2.1V versus 1.9V). Circuit design modifications to current-limiting resistors and power supply specifications are required for this substitution. This part remains ROHS3 compliant and MSL 1 rated.

Frequently Asked Questions (FAQ)

Q: Can the Dialight 5511303F, 5511304F, and 5511307F be used interchangeably with the 5511301F?

A: Yes. These three Dialight 551 series parts are direct equivalents sharing identical electrical parameters (1.9V, 2mA, 1.6mcd), optical characteristics (green, 565nm, 60° viewing angle), and mechanical form factor (3mm T-1 diffused domed lens, through-hole right-angle mounting). No circuit modifications are required for substitution.

Q: What are the key differences between the Dialight 5511301F and the Lumex SSF-LXH103GD?

A: The primary differences are current rating (2mA versus 20mA), voltage rating (1.9V versus 2.1V), and brightness output (1.6mcd versus 30mcd). Both parts share identical color, wavelength, lens type, lens size, and mounting configuration. The Lumex part is suitable only for designs where higher brightness and increased power consumption are acceptable.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The Dialight 5511303F, 5511304F, 5511307F, and Lumex SSF-LXH103GD are all ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, confirming compliance with environmental and manufacturing standards.

Q: What mounting configuration do these LED indicators use?

A: All parts listed use through-hole right-angle mounting with 3mm T-1 lens form factor, enabling direct circuit board placement without mechanical adaptation.

Q: Can the Lumex SSF-LXH103GD be used as a direct replacement without design changes?

A: No. The Lumex part requires circuit design modifications due to different electrical specifications. Current-limiting resistor values and power supply voltage must be adjusted to accommodate the 20mA current draw and 2.1V operating voltage. The higher brightness output (30mcd) may also require optical design consideration depending on application requirements.