SML-310PTT86SH Equivalent & Substitute Parts

Part Overview

The SML-310PTT86SH is a green 560nm LED indicator manufactured by Rohm Semiconductor in the SML-31 series. This surface mount component operates at 2.2V forward voltage with a 20mA test current and delivers 4mcd luminous intensity. The device is packaged in 0603 (1608 Metric) form factor with a clear rectangular lens. Currently designated as Last Time Buy, identifying substitute components is essential for design continuity and long-term supply chain planning.

Substiute Parts

SML-310PTT86SH

Rohm SemiconductorIn Stock: 763SML-310PTT86SH Datasheet

Current PartRFQ

SML-D12P8WT86

Rohm SemiconductorIn Stock: 105152SML-D12P8WT86 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SML-310PTT86SH is determined by the following critical parameters:

• Color and Wavelength: Green 560nm dominant wavelength
• Electrical Characteristics: 2.2V forward voltage and 20mA test current
• Package Format: 0603 (1608 Metric) surface mount
• Mechanical Compatibility: Identical lens size (1.20mm x 0.80mm) and rectangular flat-top lens style
• Footprint Dimensions: 1.60mm L x 0.80mm W

The substitute part SML-D12P8WT86 meets all critical substitution criteria. While it features a diffused lens (versus clear) and higher luminous intensity (6.3mcd versus 4mcd), these represent functional improvements within the same electrical and mechanical envelope. The diffused lens characteristic and increased brightness do not compromise compatibility with the original design intent.

Parameter Comparison

Engineering Selection Recommendations

The SML-D12P8WT86 is the qualified substitute for the SML-310PTT86SH. Both components are manufactured by Rohm Semiconductor and share identical electrical specifications (2.2V forward voltage, 20mA test current) and mechanical form factor (0603/1608 Metric package). The substitute part is currently in Active product status with robust inventory availability, ensuring supply chain continuity.

The SML-D12P8WT86 carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. The diffused lens characteristic and increased luminous intensity (6.3mcd) represent functional enhancements that do not introduce compatibility issues. The reduced maximum height (0.65mm versus 0.90mm) provides additional design flexibility for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the SML-D12P8WT86 be used as a direct replacement for the SML-310PTT86SH?

A: Yes. Both components share identical electrical characteristics (2.2V forward voltage, 20mA test current, 560nm green wavelength) and mechanical compatibility (0603 package, identical footprint dimensions, and rectangular flat-top lens style). The substitute part is electrically and mechanically interchangeable.

Q: What is the difference between the clear lens and diffused lens?

A: The SML-310PTT86SH features a clear lens, while the SML-D12P8WT86 features a diffused lens with a white lens color. The diffused lens provides wider light distribution and increased perceived brightness (6.3mcd versus 4mcd). Lens transparency affects light scattering characteristics but does not impact electrical compatibility.

Q: Are there any compliance or certification differences?

A: The SML-D12P8WT86 is ROHS3 compliant and REACH Unaffected. The SML-310PTT86SH compliance status was not provided in the available data. Both components are manufactured by Rohm Semiconductor and meet current regulatory standards for electronic components.

Q: Does the height difference affect PCB layout?

A: The SML-D12P8WT86 has a maximum height of 0.65mm compared to 0.90mm for the SML-310PTT86SH. This 0.25mm reduction provides additional clearance in space-constrained designs and does not introduce compatibility issues with standard 0603 package footprints.

Q: What is the inventory status of the substitute part?

A: The SML-D12P8WT86 has 105,100 pieces in stock with Active product status, ensuring reliable long-term availability. The original SML-310PTT86SH is designated Last Time Buy with 707 pieces available.