SML-110FTT86 Equivalent & Substitute Parts

Part Overview

The SML-110FTT86 is a green LED indicator (565nm dominant wavelength) manufactured by Rohm Semiconductor in a 1208 (3020 Metric) surface mount package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part delivers 10mcd luminous intensity at 20mA forward current with a 2.2V typical forward voltage, suitable for standard LED indication applications in compact form factors.

Substiute Parts

SML-110FTT86

Rohm SemiconductorIn Stock: 773SML-110FTT86 Datasheet

Current PartRFQ

SML-A12P8TT86

Rohm SemiconductorIn Stock: 21061SML-A12P8TT86 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SML-110FTT86 is determined by the following critical parameters:

• Color and Wavelength: Green LEDs with dominant wavelength in the 560-565nm range maintain functional equivalence for indication applications
• Forward Voltage (Vf): 2.2V typical forward voltage is the standard operating point
• Test Current: 20mA test current defines the luminous intensity specification
• Mounting Type: Surface mount configuration required for PCB assembly compatibility
• Lens Properties: Colorless, clear lens maintains optical characteristics
• Compliance: RoHS3 compliance and REACH unaffected status required for regulatory alignment

The substitute part SML-A12P8TT86 meets these core substitution criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The SML-A12P8TT86 serves as an active substitute for the obsolete SML-110FTT86. Both components share identical forward voltage (2.2V) and test current (20mA) specifications, ensuring compatible circuit operation. Both maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements.

Key differences requiring design consideration:

• Luminous Intensity: The substitute delivers 6.3mcd versus 10mcd for the original part. Applications requiring the full 10mcd output must evaluate whether reduced brightness is acceptable for the intended indication function.
• Package Geometry: The substitute uses a right-angle mounting configuration in a smaller 1611 (0605) package versus the standard 1208 (3020 Metric) package. PCB layout and mechanical clearance must be verified.
• Moisture Sensitivity: The substitute has MSL 3 (168 hours) versus MSL 2 (1 year) for the original, requiring stricter moisture control during storage and assembly.
• Wavelength: The 560nm dominant wavelength of the substitute is within the green spectrum range and functionally equivalent to the 565nm original for indication applications.

Frequently Asked Questions (FAQ)

Q: Can the SML-A12P8TT86 directly replace the SML-110FTT86 in existing designs?

A: Direct replacement requires verification of three factors: (1) PCB layout accommodation of the right-angle mounting and smaller 1611 package footprint, (2) circuit tolerance of the 6.3mcd luminous intensity versus the original 10mcd specification, and (3) assembly process compliance with MSL 3 moisture sensitivity requirements.

Q: Are the forward voltage and test current specifications identical?

A: Yes. Both parts operate at 2.2V typical forward voltage and 20mA test current, ensuring compatible circuit performance without modification to current-limiting resistor values or power supply specifications.

Q: What is the wavelength difference between these parts?

A: The SML-110FTT86 has a dominant wavelength of 565nm, while the SML-A12P8TT86 is specified at 560nm. Both fall within the green LED spectrum and are functionally equivalent for standard indication applications where precise wavelength matching is not required.

Q: How do the package dimensions affect substitution?

A: The original part measures 3.00mm L x 2.00mm W x 2.20mm H (1208 package), while the substitute measures 1.60mm L x 1.15mm W x 0.65mm H (1611 package). The substitute is significantly smaller and uses right-angle mounting, requiring PCB redesign and verification of mechanical clearances.

Q: What are the moisture sensitivity implications?

A: The original part has MSL 2 (1 year floor life), while the substitute has MSL 3 (168 hours floor life). The substitute requires more stringent moisture control during storage and assembly. Verify that manufacturing processes and storage conditions meet MSL 3 requirements.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the SML-110FTT86 and SML-A12P8TT86 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.