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SM0603SGC LED GREEN CLEAR 0603 SMD
Part Overview
The SM0603SGC is a green 574nm LED indication component manufactured by Bivar Inc. in a 0603 (1608 Metric) surface mount package. This part is classified as obsolete, necessitating identification of active substitute components to maintain design continuity and ensure supply chain reliability. The SM0603GC serves as the direct active substitute, offering equivalent mechanical and electrical compatibility while maintaining current production status.
Substiute Parts
Key Parameters
| Parameter | SM0603SGC (Main Part) |
|---|---|
| Manufacturer | Bivar Inc. |
| Product Status | Obsolete |
| Color | Green |
| Wavelength - Dominant | 574nm |
| Wavelength - Peak | 575nm |
| Voltage - Forward (Vf) (Typ) | 2.1V |
| Current - Test | 20mA |
| Millicandela Rating | 45mcd |
| Viewing Angle | 130° |
| Lens Style | Rectangle with Flat Top |
| Lens Size | 1.00mm x 0.80mm |
| Package / Case | 0603 (1608 Metric) |
| Size / Dimension | 1.60mm L x 0.80mm W |
| Height (Max) | 0.60mm |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) |
| ECCN | EAR99 |
| HTSUS | 8541.41.0000 |
| Configuration | Standard |
| Lens Color | Colorless |
| Lens Transparency | Clear |
Substitute Part Grouping Explanation
Substitution of the obsolete SM0603SGC with SM0603GC is permissible based on equivalence in the following critical parameters: mechanical compatibility (same 0603/1608 Metric package, identical dimensions 1.60mm L x 0.80mm W, surface mount mounting type), electrical compatibility (matching 2.1V forward voltage and 20mA test current), optical category (both green-colored LEDs with clear colorless lenses, rectangular flat-top lens style), and environmental classification (matching MSL 4 rating). Both components share identical manufacturing origin (Bivar Inc.), identical ECCN and HTSUS codes, and the same 130° viewing angle specification.
The primary distinction between the main part and substitute is wavelength specification: SM0603SGC operates at 574nm dominant/575nm peak, while SM0603GC operates at 565nm dominant/568nm peak. This represents a shift within the green spectrum. Additionally, the millicandela rating differs (45mcd for SM0603SGC versus 15mcd for SM0603GC), and maximum height increases marginally from 0.60mm to 0.80mm. The substitute part carries active product status with ROHS3 Compliance and REACH Unaffected certifications.
Parameter Comparison
| Parameter | SM0603SGC | SM0603GC | Notes |
|---|---|---|---|
| Manufacturer | Bivar Inc. | Bivar Inc. | Identical |
| Product Status | Obsolete | Active | Substitute is in current production |
| Color | Green | Green | Identical |
| Wavelength - Dominant | 574nm | 565nm | 9nm shift toward shorter wavelength |
| Wavelength - Peak | 575nm | 568nm | 7nm shift toward shorter wavelength |
| Voltage - Forward (Vf) (Typ) | 2.1V | 2.1V | Identical |
| Current - Test | 20mA | 20mA | Identical |
| Millicandela Rating | 45mcd | 15mcd | Main part has 3x higher luminous intensity |
| Viewing Angle | 130° | 130° | Identical |
| Lens Style | Rectangle with Flat Top | Rectangle with Flat Top | Identical |
| Lens Size | 1.00mm x 0.80mm | 1.00mm x 0.80mm | Identical |
| Package / Case | 0603 (1608 Metric) | 0603 (1608 Metric) | Identical |
| Size / Dimension | 1.60mm L x 0.80mm W | 1.60mm L x 0.80mm W | Identical |
| Height (Max) | 0.60mm | 0.80mm | Substitute is 0.20mm taller |
| Mounting Type | Surface Mount | Surface Mount | Identical |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) | 4 (72 Hours) | Identical |
| ECCN | EAR99 | EAR99 | Identical |
| HTSUS | 8541.41.0000 | 8541.41.0000 | Identical |
| Lens Color | Colorless | Colorless | Identical |
| Lens Transparency | Clear | Clear | Identical |
| Configuration | Standard | Standard | Identical |
| RoHS Status | Not specified | ROHS3 Compliant | Substitute provides explicit compliance |
| REACH Status | Not specified | REACH Unaffected | Substitute provides explicit status |
Engineering Selection Recommendations
The SM0603GC represents the active substitute for the obsolete SM0603SGC. Selection of SM0603GC is supported by identical forward voltage (2.1V) and test current (20mA) specifications, ensuring circuit-level compatibility without resistor or bias adjustment. The 0603 package equivalence and shared mounting technology (Surface Mount) confirm mechanical and assembly compatibility with existing PCB designs.
The substitute part's ROHS3 Compliance and REACH Unaffected certifications satisfy regulatory requirements for designs subject to environmental compliance mandates. Both parts share identical MSL 4 (72 Hours) moisture sensitivity classification, confirming equivalent handling and storage protocols.
Designers must account for optical and luminous differences: wavelength shift (565nm versus 574nm dominant) and reduced millicandela rating (15mcd versus 45mcd). The 0.20mm increase in maximum height (0.80mm versus 0.60mm) must be evaluated against PCB clearance constraints. These variations require functional validation within specific application contexts prior to production implementation.
Frequently Asked Questions (FAQ)
Q: Can SM0603GC directly replace SM0603SGC in existing designs without circuit modification? A: Electrical substitution is direct due to identical forward voltage (2.1V) and test current (20mA). No resistor or circuit adjustment is required. However, optical performance differences (wavelength and brightness) must be evaluated for the specific indication function intended.
Q: What is the primary reason for requiring a substitute part? A: SM0603SGC is classified as obsolete with no current manufacturing. SM0603GC maintains production status with 123,393 units in stock, ensuring supply availability.
Q: How does the wavelength difference affect part selection? A: SM0603SGC operates at 574nm dominant wavelength (yellow-green), while SM0603GC operates at 565nm (pure green). The 9nm shift changes perceived color appearance. Application-specific color matching requirements determine suitability.
Q: Does the brightness difference (45mcd versus 15mcd) require design changes? A: The SM0603GC operates at approximately one-third the luminous intensity of the main part. Applications requiring specific brightness levels must assess whether 15mcd intensity meets visibility requirements.
Q: Are packaging and mechanical dimensions identical? A: Yes. Both use 0603 (1608 Metric) surface mount packages with identical length (1.60mm) and width (0.80mm). Maximum height increases 0.20mm (0.60mm to 0.80mm) for SM0603GC and must be verified against PCB clearance specifications.
Q: What moisture sensitivity handling applies to both parts? A: Both components carry MSL 4 (72 Hours) classification, requiring identical moisture control and storage protocols during handling and assembly.
Q: Are there regulatory or compliance differences? A: SM0603GC carries explicit ROHS3 Compliance and REACH Unaffected certifications. Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) export classification codes.
Q: What packaging format is SM0603GC supplied in? A: SM0603GC is supplied in Tape & Reel (TR) format for automated assembly. SM0603SGC packaging format was not specified in available documentation.
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