LED Circuit Board Indicator 5681F5 - Equivalent & Substitute Parts

Part Overview

The 5681F5 is a dual-level LED circuit board indicator manufactured by Visual Communications Company (VCC), featuring a 3mm T-1 through-hole right-angle configuration with green dual-level output. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity. The part delivers 16 millicandela brightness at 10mA operating current with a 2.2V forward voltage rating, suitable for standard PCB indicator applications requiring dual-level signaling capability.

Substiute Parts

5681F5;5

Visual Communications Company - VCCIn Stock: 12395681F5;5 Datasheet

Current PartRFQ

5530122F

DialightIn Stock: 26025530122F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5681F5 is determined by strict alignment across the following critical parameters:

Mechanical Compatibility:

• Lens size: 3mm, T-1 form factor
• Mounting type: Through hole, right-angle orientation
• Lens style: Round with domed top configuration

Electrical Compatibility:

• Configuration: Dual-level (2 High) green output
• Current rating: 10mA nominal operation
• Brightness: 16mcd millicandela rating
• Wavelength: Green spectrum (560-565nm range acceptable)
• Forward voltage: 2.1V to 2.2V operating range

Regulatory & Environmental:

• RoHS3 compliance required
• MSL 1 rating (unlimited moisture exposure tolerance)
• REACH unaffected status

The substitute part 5530122F from Dialight meets all specified criteria within these parameter boundaries.

Parameter Comparison

Engineering Selection Recommendations

The 5530122F from Dialight qualifies as a direct substitute for the obsolete 5681F5 based on the following engineering criteria:

Electrical Equivalence: Both components operate at 10mA with identical 16mcd brightness output. The forward voltage differential of 0.1V (2.2V vs. 2.1V) falls within standard LED tolerance ranges and does not affect circuit design compatibility when proper current-limiting resistors are employed.

Mechanical Interchangeability: Identical 3mm T-1 through-hole right-angle mounting ensures PCB footprint compatibility without layout modification. Both components feature round domed-top lens geometry.

Regulatory Compliance: The 5530122F maintains ROHS3 compliance and REACH unaffected status, matching the original part's environmental certifications. MSL 1 rating ensures equivalent moisture tolerance for storage and handling.

Production Status: The 5530122F is active production from Dialight, providing long-term availability and supply chain stability compared to the obsolete 5681F5.

Frequently Asked Questions (FAQ)

Q: Can the 5530122F be used as a direct PCB replacement for the 5681F5?

A: Yes. Both components share identical mechanical specifications (3mm T-1 through-hole right-angle configuration) and electrical ratings (10mA, 16mcd, dual-level green output). No PCB layout modification is required.

Q: What is the significance of the 0.1V forward voltage difference?

A: The 5530122F operates at 2.1V compared to the 5681F5 at 2.2V. This 0.1V difference is within standard LED manufacturing tolerance and does not affect circuit operation when current-limiting resistors are properly sized for the 10mA nominal current.

Q: Does the tinted lens on the 5530122F affect optical performance?

A: The 5530122F features a diffused, tinted lens compared to the diffused lens on the 5681F5. Both deliver 16mcd brightness at 562-563nm wavelength. The tinted variant provides enhanced color saturation while maintaining equivalent luminous intensity for indicator applications.

Q: Are there viewing angle differences between these components?

A: The 5530122F specifies a 45° viewing angle. The 5681F5 does not provide a viewing angle specification in available documentation. The 45° specification on the substitute represents the optical dispersion characteristic of the domed-top 3mm T-1 lens geometry common to both parts.

Q: What is the packaging difference between these parts?

A: The 5681F5 is supplied in standard packaging. The 5530122F is supplied in bulk packaging. Both are suitable for through-hole PCB assembly processes.

Q: Are both components RoHS3 compliant?

A: Yes. Both the 5681F5 and 5530122F are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic component manufacturing and use.