SML-310PTT86 Equivalent & Substitute Parts

Part Overview

The SML-310PTT86 is a green LED indicator in 0603 (1608 Metric) surface mount package manufactured by Rohm Semiconductor. This component operates at 2.2V forward voltage with a 20mA test current and delivers 4mcd luminous intensity through a clear lens. The part is designated as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring green LED indication in compact SMD form factors.

Substiute Parts

SML-310PTT86

Rohm SemiconductorIn Stock: 48340SML-310PTT86 Datasheet

Current PartRFQ

SML-D12P8WT86

Rohm SemiconductorIn Stock: 105152SML-D12P8WT86 Datasheet

MFR RecommendedRFQ

19-213SYGC/S530-E1/TR8

Everlight Electronics Co LtdIn Stock: 238819-213SYGC/S530-E1/TR8 Datasheet

SimilarRFQ

SM0603GCL

Bivar Inc.In Stock: 53702SM0603GCL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SML-310PTT86 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Package / Case: 0603 (1608 Metric) surface mount
• Mounting Type: Surface Mount
• Color: Green
• Voltage - Forward (Vf): 2.2V nominal or within acceptable circuit tolerance
• Current - Test: 20mA or compatible with circuit design
• RoHS Status: ROHS3 Compliant

Secondary Considerations:

• Lens Transparency: Clear preferred for consistent optical characteristics
• Physical dimensions: 1.60mm L x 0.80mm W footprint compatibility
• Millicandela Rating: 4mcd baseline; higher ratings acceptable if circuit design permits

The substitute parts listed below meet the primary compatibility criteria and maintain functional equivalence within standard LED indicator circuit applications.

Parameter Comparison

Engineering Selection Recommendations

SML-D12P8WT86 (Rohm Semiconductor - MFR Recommended)

This part is the manufacturer-recommended substitute. It maintains identical forward voltage (2.2V) and test current (20mA) specifications. The primary difference is lens transparency: diffused versus clear. The SML-D12P8WT86 delivers higher luminous intensity (6.3mcd) and features a lower maximum height (0.65mm). Both parts are ROHS3 compliant and actively manufactured. This substitute is optimal for applications where lens diffusion is acceptable or beneficial for light distribution.

SM0603GCL (Bivar Inc.)

This part maintains green color and clear lens characteristics matching the original SML-310PTT86. Forward voltage is lower at 1.9V, and test current is significantly reduced to 2mA. The millicandela rating (3.6mcd) is comparable to the original. This substitute is suitable for low-power indicator applications where reduced current consumption is advantageous. ROHS3 compliance and active product status are confirmed.

19-213SYGC/S530-E1/TR8 (Everlight Electronics Co Ltd)

This part operates at 2V forward voltage with 20mA test current, closely matching the original electrical specifications. The primary distinction is color classification as yellow-green (573nm dominant wavelength) rather than pure green. Luminous intensity is significantly higher at 28mcd. This substitute is applicable in applications where yellow-green spectral output is acceptable and higher brightness is beneficial. ROHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q: Can I use SML-D12P8WT86 as a direct replacement for SML-310PTT86?

A: Yes. Both parts share identical forward voltage (2.2V) and test current (20mA) specifications, 0603 package form factor, and ROHS3 compliance. The diffused lens of the SML-D12P8WT86 provides wider light distribution compared to the clear lens of the original part. Circuit design compatibility is maintained.

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

A: Clear lenses (SML-310PTT86, SM0603GCL) provide directional light output with higher intensity in the viewing axis. Diffused lenses (SML-D12P8WT86) scatter light over a wider area, reducing peak intensity but improving visibility from off-axis angles. Selection depends on application requirements for light distribution and viewing angle.

Q: Is SM0603GCL suitable for my 20mA circuit design?

A: SM0603GCL operates at 2mA test current, which is lower than the original 20mA specification. Forward voltage is 1.9V compared to 2.2V. This part is suitable for low-power indicator circuits. For circuits designed specifically for 20mA operation, SML-D12P8WT86 or 19-213SYGC/S530-E1/TR8 are more appropriate selections.

Q: Can I use 19-213SYGC/S530-E1/TR8 if my application requires pure green indication?

A: The 19-213SYGC/S530-E1/TR8 is classified as yellow-green with 573nm dominant wavelength. If your application requires pure green spectral output, this part is not suitable. Use SML-D12P8WT86 or SM0603GCL for green-only applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts (SML-D12P8WT86, 19-213SYGC/S530-E1/TR8, SM0603GCL) are ROHS3 compliant, matching the compliance status of the original SML-310PTT86.

Q: What is the height difference between these parts?

A: SML-310PTT86 has a maximum height of 0.90mm. Substitute parts are lower: SML-D12P8WT86 (0.65mm), 19-213SYGC/S530-E1/TR8 (0.70mm), and SM0603GCL (0.60mm). Lower profile parts may be advantageous for space-constrained PCB designs.

Q: Which substitute offers the highest brightness?

A: The 19-213SYGC/S530-E1/TR8 delivers the highest luminous intensity at 28mcd, compared to 4mcd for the original part. This increased brightness is suitable for applications requiring enhanced visibility. Note that this part has yellow-green color rather than pure green.