SML-211DTT86 Equivalent & Substitute Parts

Part Overview

The SML-211DTT86 is an orange 605nm LED indicator in 0805 (2012 Metric) surface mount package manufactured by Rohm Semiconductor. This part is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Organizations using this component in active applications require equivalent alternatives that maintain functional compatibility while meeting current design standards and supply chain availability.

Substiute Parts

SML-211DTT86

Rohm SemiconductorIn Stock: 4442SML-211DTT86 Datasheet

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SML-H12D8TT86

Rohm SemiconductorIn Stock: 2253SML-H12D8TT86 Datasheet

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150080YS75000

Würth ElektronikIn Stock: 33884150080YS75000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SML-211DTT86 is determined by the following critical parameters:

Package Compatibility: All substitute parts must use 0805 (2012 Metric) surface mount package with identical physical dimensions (2.00mm L x 1.25mm W, maximum height 0.90mm) to ensure PCB footprint compatibility.

Optical Characteristics: Substitute parts must emit in the orange spectrum (605nm dominant wavelength) to maintain visual indication consistency in the application circuit.

Electrical Parameters: Forward voltage (Vf) and test current define the LED's operating point. Substitutes with different Vf or test current ratings require circuit redesign to maintain proper brightness and reliability.

Compliance & Certifications: All substitute parts must maintain ROHS3 compliance and equivalent moisture sensitivity level (MSL 3, 168 Hours) to ensure manufacturing process compatibility and long-term reliability.

The SML-H12D8TT86 (Rohm Semiconductor, EXCELED™ series) qualifies as a direct substitute based on identical package, wavelength, and compliance specifications, despite higher brightness rating and different electrical parameters. The 150080YS75000 (Würth Elektronik) does not qualify as a functional substitute due to different dominant wavelength (590nm yellow vs. 605nm orange), which would alter the visual indication color.

Parameter Comparison

Engineering Selection Recommendations

SML-H12D8TT86 (Rohm Semiconductor): This part maintains orange 605nm wavelength and 0805 package compatibility with the SML-211DTT86. Both parts are ROHS3 compliant with identical MSL ratings. The SML-H12D8TT86 carries Active product status, ensuring continued availability and manufacturing support. Circuit redesign is required to accommodate the higher forward voltage (2.2V vs. 1.8V) and increased test current (20mA vs. 2mA), which will result in significantly higher brightness output (63mcd vs. 2.5mcd). This substitution is suitable for applications where increased brightness is acceptable or beneficial.

150080YS75000 (Würth Elektronik): This part does not qualify as a functional substitute for the SML-211DTT86 due to different dominant wavelength (590nm yellow). While it shares the 0805 package format and ROHS3 compliance, the color change from orange to yellow would alter the visual indication in the application, making this part unsuitable for direct replacement.

Frequently Asked Questions (FAQ)

Q: Can the SML-H12D8TT86 be used as a direct drop-in replacement for the SML-211DTT86?

A: The SML-H12D8TT86 shares the same 0805 (2012 Metric) package and orange 605nm wavelength, allowing PCB footprint compatibility. However, it is not a drop-in replacement at the circuit level. The forward voltage increases from 1.8V to 2.2V, and test current increases from 2mA to 20mA. The series resistor and power supply connections must be recalculated to maintain proper LED operation and prevent damage.

Q: Why is the 150080YS75000 listed if it cannot substitute the SML-211DTT86?

A: The 150080YS75000 is included in the reference data to clarify substitution boundaries. While it shares the 0805 package and surface mount compatibility, its 590nm yellow wavelength makes it functionally incompatible with applications requiring orange indication. This distinction prevents incorrect part selection.

Q: What are the key parameters that determine LED substitution compatibility?

A: Package format, dominant wavelength, forward voltage, and test current are the primary determinants. The 0805 (2012 Metric) package ensures PCB footprint compatibility. Dominant wavelength (605nm orange) ensures visual indication consistency. Forward voltage and test current define the circuit operating point and brightness output. Deviations in any of these parameters require circuit redesign or may result in functional incompatibility.

Q: Are there compliance or supply chain advantages to using the SML-H12D8TT86?

A: The SML-H12D8TT86 carries Active product status, indicating ongoing manufacturer support and supply chain availability. The SML-211DTT86 is classified as Not For New Designs, which typically signals end-of-life or reduced availability. Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring equivalent manufacturing process compatibility.

Q: What circuit modifications are necessary when substituting with the SML-H12D8TT86?

A: The series resistor value must be recalculated based on the new forward voltage (2.2V) and test current (20mA). The power supply voltage may require adjustment depending on the circuit topology. The increased brightness output (63mcd vs. 2.5mcd) should be evaluated against application requirements to prevent over-illumination or reduced component lifespan.