Dialight 5511501F LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5511501F is an LED Circuit Board Indicator (CBI) designed for through-hole, right-angle mounting applications. This single green LED features a 3mm T-1 form factor with a tinted, domed lens and operates at 2.1V with a 20mA current rating. The part is currently active in production with full inventory availability. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter constraints.

Substiute Parts

5511501F

DialightIn Stock: 11535511501F Datasheet

Current PartRFQ

5511502F

DialightIn Stock: 48335511502F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5511501F is determined by strict equivalence across the following critical parameters:

• Color: Green
• Wavelength - Peak: 565nm
• Configuration: Single
• Current Rating: 20mA
• Voltage Rating: 2.1V
• Millicandela Rating: 50mcd
• Viewing Angle: 45°
• Lens Type: Tinted
• Lens Style: Round with Domed Top
• Lens Size: 3mm, T-1
• Mounting Type: Through Hole, Right Angle

The identified substitute part maintains identical electrical performance and mechanical form factor, ensuring direct compatibility in circuit board applications without design modification.

Parameter Comparison

Engineering Selection Recommendations

Both the Dialight 5511501F and 5511502F are active production parts with full regulatory compliance. Both parts meet ROHS3 requirements and are REACH unaffected, making them suitable for applications subject to environmental regulations. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage or handling.

Selection between these parts should be based on inventory availability and supply chain requirements, as all electrical and mechanical parameters are identical. Both parts are suitable for direct substitution in through-hole, right-angle circuit board indicator applications requiring green LED operation at 2.1V and 20mA.

Frequently Asked Questions (FAQ)

Q: Can the 5511502F directly replace the 5511501F in existing designs?

A: Yes. Both parts share identical electrical ratings (2.1V, 20mA), optical characteristics (565nm peak wavelength, 50mcd, 45° viewing angle), and mechanical form factor (3mm T-1 through-hole right-angle mount). No circuit modification is required.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 1 (Unlimited). Both are active production parts from Dialight.

Q: What determines substitution eligibility for this LED?

A: Substitution is based on matching color, wavelength, current rating, voltage rating, luminous intensity, viewing angle, lens type and style, physical size, and mounting configuration. All these parameters must be identical for direct substitution.

Q: Are there packaging considerations when switching between these parts?

A: Both parts are supplied in bulk packaging. Verify packaging quantity requirements for your procurement process, as this may differ between part numbers.