SML-L13DTAFS Equivalent & Substitute Parts

Part Overview

The SML-L13DTAFS is an orange surface mount right-angle LED manufactured by Rohm Semiconductor, designed for indication applications with a dominant wavelength of 605nm and peak wavelength of 611nm. This component operates at 2V forward voltage with a 20mA test current and delivers 15000mcd brightness in a 2-SMD, No Lead package measuring 4.90mm L x 3.60mm W x 4.60mm H (max).

The product is classified as Obsolete, making equivalent or substitute components necessary for ongoing production, maintenance, or redesign applications. Identifying compatible alternatives ensures design continuity and supply chain reliability.

Substiute Parts

SML-L13DTAFS

Rohm SemiconductorIn Stock: 806SML-L13DTAFS Datasheet

Current PartRFQ

SML-A12DTT86

Rohm SemiconductorIn Stock: 16430SML-A12DTT86 Datasheet

SimilarRFQ

APDA3020SECK/J4-PF

KingbrightIn Stock: 288702APDA3020SECK/J4-PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SML-L13DTAFS is determined by the following critical parameters:

• Color: Orange
• Wavelength - Dominant: 605nm (±tolerance range)
• Voltage - Forward (Vf): 2V nominal operating point
• Current - Test: 20mA
• Mounting Type: Surface Mount, Right Angle
• Package / Case: 2-SMD, No Lead
• RoHS Status: ROHS3 Compliant

The substitute parts identified are compatible based on matching or closely aligned electrical characteristics (forward voltage, test current, wavelength), identical mounting configuration, and equivalent regulatory compliance. Physical dimensions and brightness ratings may vary within acceptable application tolerances.

Parameter Comparison

Engineering Selection Recommendations

SML-A12DTT86 (Rohm Semiconductor): This substitute shares identical electrical specifications (2V forward voltage, 20mA test current) and mounting configuration with the main part. However, it is classified as Not For New Designs and exhibits significantly lower brightness (100mcd versus 15000mcd). Selection of this part is appropriate only when brightness reduction is acceptable for the application and existing inventory or supply agreements favor Rohm Semiconductor components.

APDA3020SECK/J4-PF (Kingbright): This substitute maintains the same dominant wavelength (605nm) and peak wavelength (611nm) as the main part, with comparable brightness (4500mcd). The forward voltage is 2.2V, representing a 0.2V increase from the main part specification. This part carries Active product status, ensuring ongoing availability and support. Selection is appropriate for applications where the slightly elevated forward voltage is within circuit design tolerance and long-term component availability is prioritized.

Both substitutes maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental consistency with the original specification.

Frequently Asked Questions (FAQ)

Q: Can SML-A12DTT86 directly replace SML-L13DTAFS in all applications?

A: Electrical compatibility exists due to matching forward voltage (2V) and test current (20mA). However, the brightness differential (100mcd versus 15000mcd) represents a 99.3% reduction in light output. Direct replacement is only viable if the application tolerates significantly reduced brightness or if the original design included brightness margin.

Q: What is the impact of the 0.2V forward voltage difference in APDA3020SECK/J4-PF?

A: The APDA3020SECK/J4-PF operates at 2.2V versus the main part's 2V. This 10% increase in forward voltage affects circuit current limiting and power dissipation calculations. Verify that the circuit's current-limiting resistor and power supply design accommodate this voltage shift without exceeding component ratings.

Q: Are all three parts suitable for new designs?

A: No. The main part (SML-L13DTAFS) is Obsolete, and SML-A12DTT86 is Not For New Designs. Only APDA3020SECK/J4-PF carries Active status and is suitable for new design implementations.

Q: Do the substitute parts require different PCB footprints?

A: All three parts use 2-SMD, No Lead packages with Surface Mount, Right Angle mounting. However, physical dimensions differ: SML-L13DTAFS measures 4.90mm L x 3.60mm W x 4.60mm H, SML-A12DTT86 measures 1.60mm L x 1.15mm W x 0.65mm H, and APDA3020SECK/J4-PF measures 3.00mm L x 2.80mm W x 2.00mm H. PCB layout verification is required before substitution.

Q: Are all parts RoHS compliant?

A: Yes. All three parts are ROHS3 Compliant with identical Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours), ensuring equivalent environmental and regulatory compliance.