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EAST2012YA1 Yellow LED 0805 SMD Equivalent & Substitute Parts
Part Overview
The EAST2012YA1 is an active yellow LED indication component manufactured by Everlight Electronics Co Ltd, designed for surface mount applications in the 0805 (2012 Metric) package format. This discrete LED operates at 2.05V forward voltage with a 50mcd brightness rating and 589nm dominant wavelength, suitable for standard indicator applications requiring yellow light emission. The component is ROHS3 compliant and currently in active production status with 941 pieces available in inventory.
Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and environmental compliance can be maintained across different manufacturers while preserving the core functional requirements of yellow LED indication in the 0805 package format.
Substiute Parts
Key Parameters
| Parameter | Value | Unit | Significance for Substitution |
|---|---|---|---|
| Package / Case | 0805 (2012 Metric) | - | Mechanical compatibility and PCB footprint match |
| Mounting Type | Surface Mount | - | Assembly process compatibility |
| Color | Yellow | - | Optical output specification |
| Lens Transparency | Clear | - | Optical clarity requirement |
| Voltage - Forward (Vf) (Typ) | 2.05V | V | Circuit design and current limiting resistor calculation |
| Current - Test | 20mA | mA | Operating current specification |
| Viewing Angle | 140° | degrees | Light distribution pattern |
| Wavelength - Peak | 591nm | nm | Yellow spectrum definition |
| RoHS Status | ROHS3 Compliant | - | Environmental and regulatory compliance |
| Packaging | Tape & Reel (TR) | - | Supply format for automated assembly |
Substitute Part Grouping Explanation
Substitute parts for the EAST2012YA1 are identified based on strict parameter matching within the following critical categories:
Mechanical Compatibility: All substitute parts must use the 0805 (2012 Metric) package with surface mount configuration to ensure PCB footprint compatibility and assembly process alignment.
Optical Specification: Substitute parts must emit yellow light with peak wavelength in the 589-591nm range and maintain clear lens transparency to preserve the intended visual indication function.
Electrical Parameters: Forward voltage (Vf) must remain within the range of 2.05V to 2.1V at 20mA test current to ensure compatibility with existing circuit designs and current-limiting resistor calculations. Viewing angle must be 140° to maintain consistent light distribution characteristics.
Environmental Compliance: All substitute parts must maintain ROHS3 compliance status to satisfy regulatory requirements for the application environment.
Supply Format: Tape & Reel (TR) packaging ensures compatibility with automated assembly processes.
The SML-LX0805SYC-TR from Lumex Opto/Components Inc. meets all these criteria and qualifies as a parametric equivalent substitute.
Parameter Comparison
| Parameter | EAST2012YA1 (Everlight) | SML-LX0805SYC-TR (Lumex) | Compatibility |
|---|---|---|---|
| Manufacturer | Everlight Electronics Co Ltd | Lumex Opto/Components Inc. | Different manufacturers |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | Match |
| Mounting Type | Surface Mount | Surface Mount | Match |
| Color | Yellow | Yellow | Match |
| Lens Color | Colorless | Colorless | Match |
| Lens Transparency | Clear | Clear | Match |
| Lens Style | Rectangle with Flat Top | Rectangle with Flat Top | Match |
| Lens Size | 1.40mm x 1.25mm | 1.40mm x 1.25mm | Match |
| Voltage - Forward (Vf) (Typ) | 2.05V | 2.1V | Compatible (0.05V difference) |
| Current - Test | 20mA | 20mA | Match |
| Viewing Angle | 140° | 140° | Match |
| Wavelength - Peak | 591nm | 590nm | Compatible (1nm difference) |
| Size / Dimension | 2.00mm L x 1.25mm W | 2.00mm L x 1.25mm W | Match |
| Height (Max) | 1.10mm | 1.20mm | Compatible (0.10mm difference) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Match |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Match |
| Product Status | Active | Active | Match |
Engineering Selection Recommendations
Primary Selection (EAST2012YA1): Use when Everlight Electronics supply chain is established and inventory availability is confirmed. This component is in active production with 941 pieces currently in stock.
Substitute Selection (SML-LX0805SYC-TR): Use when supply continuity from Everlight is interrupted or when higher inventory availability is required. The Lumex part offers 11,831 pieces in stock, providing greater supply security. Both components maintain ROHS3 compliance and active product status.
Voltage Consideration: The forward voltage difference of 0.05V (2.05V vs 2.1V) is within typical LED tolerance ranges and does not require circuit redesign. Existing current-limiting resistor values remain valid for both components at 20mA test current.
Height Tolerance: The maximum height difference of 0.10mm (1.10mm vs 1.20mm) is within standard PCB assembly clearance specifications and does not impact board layout or component placement.
Wavelength Alignment: The peak wavelength difference of 1nm (591nm vs 590nm) is imperceptible to human vision and maintains yellow light specification across both components.
Frequently Asked Questions (FAQ)
Q: Can the SML-LX0805SYC-TR directly replace the EAST2012YA1 without circuit modification?
A: Yes. Both components operate at compatible forward voltages (2.05V vs 2.1V) at 20mA test current. Existing current-limiting resistor calculations remain valid. No circuit redesign is required.
Q: Are the physical dimensions identical between these two parts?
A: The footprint dimensions are identical (2.00mm L x 1.25mm W). Maximum height differs by 0.10mm (1.10mm vs 1.20mm), which is within standard PCB assembly clearance tolerances and does not affect board layout.
Q: Do both parts meet the same environmental compliance standards?
A: Yes. Both the EAST2012YA1 and SML-LX0805SYC-TR are ROHS3 compliant and suitable for equivalent regulatory environments.
Q: What is the difference in brightness between these two LEDs?
A: The EAST2012YA1 has a 50mcd rating while the SML-LX0805SYC-TR has a 60mcd rating. The Lumex part provides 20% higher brightness output at the same 20mA test current.
Q: Are both parts available in Tape & Reel packaging for automated assembly?
A: Yes. Both components are supplied in Tape & Reel (TR) format, compatible with standard pick-and-place assembly equipment.
Q: What is the moisture sensitivity level difference?
A: The EAST2012YA1 has MSL 2 (1 Year storage), while the SML-LX0805SYC-TR has MSL 3 (168 Hours storage). Both are suitable for standard manufacturing environments with appropriate moisture control.
Q: Can I use these parts interchangeably in existing designs?
A: Yes. Both parts are parametric equivalents in the 0805 package with matching optical and electrical specifications within acceptable engineering tolerances. No design changes are required for substitution.
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