SML-512CWT86A Orange LED 0603 SMD Equivalent & Substitute Parts

Part Overview

The SML-512CWT86A is an orange diffused LED in 0603 (1608 Metric) surface mount package manufactured by Rohm Semiconductor. This component is designated as Not For New Designs, indicating it has reached end-of-life status. The part delivers 112mcd luminous intensity at 20mA test current with a dominant wavelength of 603nm and forward voltage of 2V. Due to its discontinued status, equivalent substitute parts are necessary for ongoing production support, maintenance applications, and design transitions to active alternatives.

Substiute Parts

SML-512CWT86A

Rohm SemiconductorIn Stock: 1058SML-512CWT86A Datasheet

Current PartRFQ

SML-D12D1WT86

Rohm SemiconductorIn Stock: 140682SML-D12D1WT86 Datasheet

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SML-D12D8WT86

Rohm SemiconductorIn Stock: 15413SML-D12D8WT86 Datasheet

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19-219/Y5C-AM1N2VY/3T

Everlight Electronics Co LtdIn Stock: 111319-219/Y5C-AM1N2VY/3T Datasheet

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QBLP601-Y1

QT Brightek (QTB)In Stock: 1159QBLP601-Y1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SML-512CWT86A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Package / Case: 0603 (1608 Metric) surface mount only
• Mounting Type: Surface Mount
• Size / Dimension: 1.60mm L x 0.80mm W (mechanical fit requirement)
• Height (Max): 0.65mm (PCB clearance requirement)

Electrical Compatibility Criteria:

• Color: Orange (visual indication function)
• Lens Transparency: Diffused (optical characteristic)
• Voltage - Forward (Vf) Typ: 2V nominal (circuit design parameter)
• Current - Test: 20mA (standard test condition)

Regulatory Compliance:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The substitute parts SML-D12D1WT86 and SML-D12D8WT86 maintain identical mechanical dimensions and package specifications. Both are active products from Rohm Semiconductor with ROHS3 compliance. These parts operate at 2.2V forward voltage with 100mcd luminous intensity at 605nm dominant wavelength, representing minor electrical variations within acceptable substitution parameters for orange LED indication applications.

The parts 19-219/Y5C-AM1N2VY/3T and QBLP601-Y1 are yellow LEDs with different dominant wavelengths (590nm), lens colors (colorless vs. diffused), and electrical characteristics. These represent functional alternatives only when color change from orange to yellow is acceptable in the application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Orange Diffused LED):

SML-D12D1WT86 and SML-D12D8WT86 are the preferred substitutes for the SML-512CWT86A. Both parts maintain identical mechanical compatibility, package specifications, and optical characteristics (orange color, diffused lens). The electrical parameters differ minimally: forward voltage increases from 2V to 2.2V, and luminous intensity decreases from 112mcd to 100mcd. Both substitute parts carry Active product status and ROHS3 compliance, making them suitable for production applications requiring orange LED indication in 0603 surface mount form factor.

The distinction between SML-D12D1WT86 and SML-D12D8WT86 is packaging format: SML-D12D1WT86 is supplied in Tape & Reel (TR), while SML-D12D8WT86 is supplied in Cut Tape (CT) & Digi-Reel. Selection between these two depends on procurement and assembly requirements.

Alternative Substitutes (Yellow Clear LED):

19-219/Y5C-AM1N2VY/3T and QBLP601-Y1 are yellow LEDs with clear lenses. These parts are functional alternatives only when the application permits color change from orange to yellow. Both parts maintain 0603 package compatibility and surface mount mounting. However, these alternatives introduce significant differences: yellow wavelength (590nm vs. 603nm orange), clear lens transparency (vs. diffused), and substantially lower luminous intensity ratings. The 19-219/Y5C-AM1N2VY/3T operates at 1.95V with 31.5mcd at 5mA test current, while QBLP601-Y1 operates at 2.1V with only 8mcd at 20mA test current.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, consistent with the original SML-512CWT86A. Moisture Sensitivity Level increases from MSL 1 (Unlimited) to MSL 3 (168 Hours) for the Rohm orange LED substitutes, requiring standard moisture control during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can SML-D12D1WT86 and SML-D12D8WT86 be used interchangeably with SML-512CWT86A?

A: Yes, both parts are direct mechanical and functional substitutes. They maintain identical 0603 package dimensions, surface mount configuration, and orange diffused LED optical characteristics. The primary differences are forward voltage (2.2V vs. 2V) and luminous intensity (100mcd vs. 112mcd). Circuit designs must accommodate the 0.2V forward voltage increase. Both parts are active products with ROHS3 compliance.

Q: What is the difference between SML-D12D1WT86 and SML-D12D8WT86?

A: Both parts are electrically and mechanically identical. The difference is packaging format: SML-D12D1WT86 is supplied in Tape & Reel (TR), while SML-D12D8WT86 is supplied in Cut Tape (CT) & Digi-Reel. Selection depends on assembly equipment compatibility and procurement preferences.

Q: Can yellow LEDs (19-219/Y5C-AM1N2VY/3T or QBLP601-Y1) replace the orange SML-512CWT86A?

A: Yellow LEDs are functional alternatives only if the application permits color change from orange to yellow indication. These parts maintain 0603 package compatibility but differ significantly in wavelength (590nm yellow vs. 603nm orange), lens transparency (clear vs. diffused), and luminous intensity. Circuit design changes may be required due to different forward voltage and test current specifications.

Q: What are the mechanical compatibility requirements for substitution?

A: All substitute parts must maintain the 0603 (1608 Metric) package specification, 1.60mm L x 0.80mm W dimensions, and maximum height of 0.65mm for PCB clearance. Surface mount mounting type is required. These parameters ensure compatibility with existing PCB layouts and assembly processes.

Q: Are there moisture sensitivity considerations when substituting to SML-D12D1WT86 or SML-D12D8WT86?

A: Yes. The original SML-512CWT86A has MSL 1 (Unlimited), while both substitute parts have MSL 3 (168 Hours). This requires standard moisture control during storage, with components stored in dry conditions and used within 168 hours of package opening. Standard industry moisture barrier bags and desiccant are appropriate for handling.

Q: What electrical parameter changes must circuit designs accommodate?

A: The primary change is forward voltage: SML-D12D1WT86 and SML-D12D8WT86 operate at 2.2V compared to 2V for the original part. This 0.2V increase must be verified against circuit current-limiting resistor calculations and power supply specifications. Luminous intensity decreases from 112mcd to 100mcd, which may affect visual indication brightness in the application.

Q: Are all substitute parts ROHS3 compliant?

A: SML-D12D1WT86, SML-D12D8WT86, and QBLP601-Y1 are ROHS3 compliant. The 19-219/Y5C-AM1N2VY/3T does not specify RoHS status in the provided data. Verify RoHS compliance with the supplier if regulatory requirements mandate ROHS3 certification.