SML311EBTT86 Equivalent & Substitute Parts

Part Overview

The SML311EBTT86 is a green LED indicator in 0603 (1608 Metric) surface mount package manufactured by Rohm Semiconductor. This component is designed for discrete LED indication applications with a forward voltage of 4.6V and 90mcd brightness rating. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design requirements and production continuity.

Substiute Parts

SML311EBTT86

Rohm SemiconductorIn Stock: 1187SML311EBTT86 Datasheet

Current PartRFQ

5988081107F

DialightIn Stock: 558745988081107F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SML311EBTT86 is determined by the following critical parameters:

• Package Compatibility: 0603 (1608 Metric) surface mount package required for PCB footprint alignment
• Color & Wavelength: Green color with 523nm peak wavelength for optical consistency
• Electrical Characteristics: Forward voltage (Vf) range and 20mA test current compatibility
• Brightness Rating: Millicandela rating must support the intended indication function
• Regulatory Compliance: ROHS3 compliance and equivalent moisture sensitivity level (MSL 3)

The substitute part 5988081107F from Dialight meets these substitution criteria within acceptable electrical and mechanical tolerances for this product category.

Parameter Comparison

Engineering Selection Recommendations

The 5988081107F from Dialight is a qualified substitute for the obsolete SML311EBTT86. Both components share identical package geometry (0603), color specification (green), peak wavelength (523nm), test current (20mA), and regulatory compliance status (ROHS3, MSL 3).

The Dialight part offers improved brightness (300mcd versus 90mcd) and lower forward voltage (3.2V versus 4.6V), with a reduced maximum height (0.70mm versus 0.90mm). The active product status of the Dialight component ensures ongoing availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 5988081107F directly replace the SML311EBTT86 in existing designs?

A: Yes. Both components use identical 0603 (1608 Metric) surface mount packages with matching footprint dimensions (1.60mm L x 0.80mm W). PCB layout compatibility is maintained.

Q: What are the electrical differences between these parts?

A: The forward voltage differs by 0.3V (4.6V for SML311EBTT86 versus 3.2V for 5988081107F). The Dialight part provides higher brightness at 300mcd compared to 90mcd. Both operate at 20mA test current.

Q: Are there height considerations for PCB assembly?

A: The 5988081107F has a lower maximum height (0.70mm) compared to the SML311EBTT86 (0.90mm). This difference is within typical PCB assembly tolerances and does not affect component placement or soldering processes.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant with MSL 3 (168 Hours) moisture sensitivity rating and REACH unaffected status.

Q: Why is the SML311EBTT86 listed as obsolete?

A: The SML311EBTT86 has been discontinued by Rohm Semiconductor. The 5988081107F from Dialight provides functional and electrical equivalence for ongoing production and design requirements.