SML-012U8TT86 Equivalent & Substitute Parts

Part Overview

The SML-012U8TT86 is a red LED indicator in 3020 SMD packaging manufactured by Rohm Semiconductor. This surface-mount component operates at a forward voltage of 2.2V with a test current of 20mA and delivers 100mcd luminous intensity at a dominant wavelength of 620nm. The part is currently active in production and maintains full RoHS3 compliance. Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or equivalent electrical and mechanical performance specifications.

Substiute Parts

SML-012U8TT86

Rohm SemiconductorIn Stock: 1196SML-012U8TT86 Datasheet

Current PartRFQ

SML-012UTT86

Rohm SemiconductorIn Stock: 4559SML-012UTT86 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SML-012U8TT86 is determined by strict equivalence across the following critical parameters:

Color and wavelength specification (red, 620nm dominant wavelength) establish the optical function and cannot vary. Package and case designation (1208 / 3020 Metric) and mounting type (surface mount) ensure mechanical and assembly compatibility. Luminous intensity (100mcd) and lens geometry (rectangle with flat top, 2.30mm x 1.60mm) define the optical output characteristics. Forward voltage (2.2V nominal) and test current (20mA) establish the electrical operating point. Physical dimensions (3.00mm L x 2.00mm W, 1.50mm max height) confirm PCB footprint compatibility.

The identified substitute part SML-012UTT86 maintains equivalence across all these parameters with the exception of forward voltage (2.0V nominal) and moisture sensitivity level (MSL 3 versus MSL 4). These variations remain within acceptable substitution criteria for this component category.

Parameter Comparison

Engineering Selection Recommendations

Both SML-012U8TT86 and SML-012UTT86 maintain active product status with full ROHS3 compliance and REACH unaffected designation. The primary distinction between these parts is the forward voltage specification (2.2V versus 2.0V) and moisture sensitivity level (MSL 4 versus MSL 3). Circuit designs operating at the specified 2.2V forward voltage should use the primary part number SML-012U8TT86. Applications where forward voltage tolerance permits operation at 2.0V may utilize SML-012UTT86. The improved moisture sensitivity rating (MSL 3) of the substitute part provides extended shelf life under controlled storage conditions (168 hours at 85% relative humidity and 85°C versus 72 hours for the primary part).

Frequently Asked Questions (FAQ)

Q: Can SML-012UTT86 be used as a direct replacement for SML-012U8TT86?

A: SML-012UTT86 is electrically and mechanically compatible with SML-012U8TT86 across package, mounting type, optical output, and physical dimensions. The forward voltage differs by 0.2V (2.0V versus 2.2V). Circuit designs must accommodate this voltage variation or confirm operation within the substitute part's electrical specification.

Q: What is the significance of the MSL rating difference?

A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to 85% relative humidity and 85°C temperature before soldering. SML-012U8TT86 is rated MSL 4 (72 hours), while SML-012UTT86 is rated MSL 3 (168 hours). The substitute part permits longer storage periods under controlled conditions before assembly.

Q: Are the optical characteristics identical between these parts?

A: Yes. Both parts deliver 100mcd luminous intensity at 620nm dominant wavelength with identical lens geometry (rectangle with flat top, 2.30mm x 1.60mm) and identical test current (20mA).

Q: Do both parts fit the same PCB footprint?

A: Yes. Both parts are packaged in 1208 (3020 Metric) with identical physical dimensions (3.00mm L x 2.00mm W, 1.50mm max height) and surface-mount configuration.

Q: Which part should be specified for new designs?

A: Specify SML-012U8TT86 as the primary part number. SML-012UTT86 is identified as an equivalent substitute for sourcing flexibility when the primary part is unavailable or when circuit design permits operation at 2.0V forward voltage.