SML-211UTT86 Equivalent & Substitute Parts

Part Overview

The SML-211UTT86 is a red 620nm LED indicator in 0805 (2012 Metric) surface mount package manufactured by Rohm Semiconductor. This part operates at 1.8V forward voltage with 2mA test current and delivers 2.5mcd brightness. The product is classified as Not For New Designs, making identification of active equivalent parts essential for ongoing production and maintenance applications. Substitute parts must maintain mechanical compatibility with the 0805 package while accommodating variations in electrical performance parameters.

Substiute Parts

SML-211UTT86

Rohm SemiconductorIn Stock: 4404SML-211UTT86 Datasheet

Current PartRFQ

SML-H12U8TT86

Rohm SemiconductorIn Stock: 3627SML-H12U8TT86 Datasheet

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150080RS75000

Würth ElektronikIn Stock: 6146150080RS75000 Datasheet

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150080SS75000

Würth ElektronikIn Stock: 34820150080SS75000 Datasheet

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APT2012SURCK

KingbrightIn Stock: 2163APT2012SURCK Datasheet

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QTLP630C7TR

onsemiIn Stock: 1606QTLP630C7TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SML-211UTT86 is determined by the following mandatory parameters:

• Package / Case: 0805 (2012 Metric) surface mount configuration
• Color: Red LED indication
• Lens Style: Rectangle with Flat Top
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)

Electrical parameters including forward voltage (Vf), test current, wavelength, and brightness (mcd) may vary within acceptable ranges for substitute parts. Substitute parts must maintain identical mechanical footprint and environmental compliance ratings. Product status (Active vs. Not For New Designs) is noted for design planning purposes but does not disqualify substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain the 0805 (2012 Metric) surface mount package and are ROHS3 compliant with MSL 3 rating, ensuring mechanical and environmental compatibility with the SML-211UTT86.

SML-H12U8TT86 (Rohm Semiconductor, Active) provides the closest manufacturer continuity within the Rohm product line. Forward voltage increases to 2.2V with proportionally higher test current (20mA) and brightness (40mcd).

150080SS75000 (Würth Elektronik, Active) offers the lowest forward voltage deviation (1.9V) relative to the original 1.8V specification, with moderate brightness increase (60mcd) and established supply availability.

150080RS75000 (Würth Elektronik, Active) delivers significantly higher brightness (150mcd) with 2.0V forward voltage and 140° viewing angle, suitable for applications requiring enhanced visibility.

APT2012SURCK (Kingbright, Active) provides balanced electrical characteristics (1.95V, 80mcd) with the lowest maximum height (0.75mm), accommodating space-constrained designs.

QTLP630C7TR (onsemi, Obsolete) is not recommended for new production due to obsolete status, despite MSL 1 rating and 1.9V forward voltage compatibility.

Frequently Asked Questions (FAQ)

Q: Can I directly replace SML-211UTT86 with any of these substitute parts?

A: All listed substitutes share the 0805 (2012 Metric) package footprint and surface mount configuration, enabling direct PCB placement. However, circuit design must accommodate variations in forward voltage (1.8V to 2.2V range) and test current (2mA to 20mA). Current-limiting resistor values may require adjustment based on the selected substitute part's electrical characteristics.

Q: What is the primary difference between SML-211UTT86 and SML-H12U8TT86?

A: Both are Rohm Semiconductor red LEDs in 0805 package. SML-H12U8TT86 operates at higher forward voltage (2.2V vs. 1.8V), higher test current (20mA vs. 2mA), and delivers significantly greater brightness (40mcd vs. 2.5mcd). SML-H12U8TT86 is Active status, making it suitable for new designs.

Q: Why do substitute parts have different test currents?

A: Test current is the standardized measurement condition for brightness specification. The SML-211UTT86 uses 2mA test current, while most active substitutes use 20mA. This reflects different design generations and brightness classes. Circuit implementation must use appropriate current-limiting resistors for the selected part.

Q: Are all substitute parts RoHS3 compliant?

A: Five of six listed substitutes are explicitly ROHS3 compliant. QTLP630C7TR (onsemi) does not specify RoHS status in the provided data. Verify RoHS compliance with the manufacturer if regulatory requirements mandate ROHS3 certification.

Q: What is the significance of MSL rating differences?

A: SML-211UTT86 and five active substitutes carry MSL 3 (168 Hours), indicating identical moisture sensitivity and storage requirements. QTLP630C7TR carries MSL 1 (Unlimited), requiring less stringent moisture control but is obsolete status. MSL 3 parts require controlled storage conditions and baking procedures before reflow soldering.

Q: Which substitute offers the best height compatibility for space-constrained applications?

A: APT2012SURCK (Kingbright) has the lowest maximum height at 0.75mm, compared to 0.90mm for the original SML-211UTT86. The Würth Elektronik parts (150080RS75000, 150080SS75000) also offer reduced height at 0.80mm. QTLP630C7TR has the highest maximum height at 1.20mm.

Q: Can I use QTLP630C7TR as a substitute despite obsolete status?

A: QTLP630C7TR is electrically compatible (1.9V forward voltage, 620nm wavelength range) and mechanically compatible (0805 package). However, obsolete status indicates discontinued production and limited future availability. Use only for maintenance of existing products where supply is confirmed.