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AM27SGC09 Equivalent & Substitute Parts Reference
Part Overview
The AM27SGC09 is an active green LED indication component manufactured by Kingbright, designed for surface mount applications. This discrete 2-SMD Z-Bend LED operates at 2.2V forward voltage with a 568nm dominant wavelength and 100mcd brightness rating. The component is ROHS3 compliant and maintains active product status with 831 units in current inventory. Substitute parts are identified to address supply chain continuity, inventory availability, or specific application requirements while maintaining functional compatibility within defined electrical and mechanical parameters.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | AM27SGC09 | - |
| Manufacturer | Kingbright | - |
| Color | Green | - |
| Wavelength - Dominant | 568nm | nm |
| Wavelength - Peak | 565nm | nm |
| Voltage - Forward (Vf) Typical | 2.2V | V |
| Current - Test | 20mA | mA |
| Millicandela Rating | 100mcd | mcd |
| Lens Style | Round with Domed Top | - |
| Lens Size | 1.78mm Dia | mm |
| Viewing Angle | 20° | degrees |
| Mounting Type | Surface Mount | - |
| Package / Case | 2-SMD, Z-Bend | - |
| Size / Dimension | 2.21mm L x 2.21mm W | mm |
| Height (Max) | 2.92mm | mm |
| RoHS Status | ROHS3 Compliant | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | - |
| REACH Status | REACH Unaffected | - |
| Product Status | Active | - |
Substitute Part Grouping Explanation
Substitute parts for the AM27SGC09 are identified based on strict alignment with the following critical parameters:
Color and Wavelength Compatibility: All substitutes must emit green light within the 565-568nm wavelength range to maintain visual indication consistency.
Electrical Parameters: Forward voltage (Vf) must fall within acceptable operating range (2.1V-2.2V typical). Test current specifications must support standard 20mA operation.
Optical Performance: Brightness rating (millicandela) and viewing angle determine visibility characteristics. Substitutes with lower brightness ratings (50mcd vs. 100mcd) or wider viewing angles (25° vs. 20°) represent functional alternatives for applications where brightness or directional visibility requirements differ.
Mechanical Compatibility: Package type (2-SMD Z-Bend), mounting method (Surface Mount), and physical dimensions (lens size, overall height) must accommodate existing PCB layouts and assembly processes.
Regulatory Compliance: All substitutes must maintain ROHS3 compliance and REACH unaffected status to satisfy environmental and regulatory requirements.
Lens Configuration: Round domed top lens style with clear transparency ensures optical consistency across substitute selections.
Parameter Comparison
| Parameter | AM27SGC09 (Kingbright) | CMD9121VGCTR10 (VCC) | Compatibility Notes |
|---|---|---|---|
| Color | Green | Green | Matched |
| Wavelength - Peak | 565nm | 565nm | Matched |
| Wavelength - Dominant | 568nm | Not specified | Primary specification provided for main part |
| Voltage - Forward (Vf) Typical | 2.2V | 2.1V | Within acceptable range; 0.1V variance |
| Current - Test | 20mA | Not specified | Standard operation at 20mA supported |
| Millicandela Rating | 100mcd | 50mcd | Substitute provides 50% brightness; suitable for applications with lower visibility requirements |
| Lens Style | Round with Domed Top | Round with Domed Top | Matched |
| Lens Transparency | Clear | Clear | Matched |
| Lens Size | 1.78mm Dia | 1.90mm Dia | 0.12mm larger diameter; minor dimensional variance |
| Viewing Angle | 20° | 25° | Substitute provides 5° wider viewing angle |
| Mounting Type | Surface Mount | Surface Mount, Bottom Entry | Both surface mount compatible; substitute includes bottom entry feature |
| Package / Case | 2-SMD, Z-Bend | 2-SMD, Z-Bend | Matched |
| Size / Dimension | 2.21mm L x 2.21mm W | 2.50mm L x 2.00mm W | Substitute 0.29mm longer, 0.21mm narrower; verify PCB layout clearance |
| Height (Max) | 2.92mm | 3.00mm | Substitute 0.08mm taller; verify assembly clearance |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Matched |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | Matched |
| REACH Status | REACH Unaffected | REACH Unaffected | Matched |
| Product Status | Active | Active | Both components maintain active manufacturing status |
Engineering Selection Recommendations
Primary Selection (AM27SGC09): Maintain use of the Kingbright AM27SGC09 when 100mcd brightness and 20° viewing angle are required for the application. This component is actively manufactured with 831 units in current inventory, ensuring supply continuity. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements.
Substitute Selection (CMD9121VGCTR10): The Visual Communications Company CMD9121VGCTR10 serves as a functional substitute when supply constraints on the primary part occur or when application requirements accommodate lower brightness (50mcd) and wider viewing angle (25°). This substitute maintains identical peak wavelength (565nm), compatible forward voltage (2.1V vs. 2.2V), and equivalent regulatory compliance. The component is available in higher inventory quantity (2160 units) and includes bottom entry mounting feature. Physical dimensions vary by 0.29mm length, 0.21mm width, and 0.08mm height; PCB layout and assembly clearance verification is required before substitution.
Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for equivalent selection.
Inventory Considerations: The substitute part (CMD9121VGCTR10) offers significantly higher inventory availability (2160 units vs. 831 units), supporting extended supply chain planning.
Frequently Asked Questions (FAQ)
Q: Can the CMD9121VGCTR10 directly replace the AM27SGC09 in all applications?
A: The CMD9121VGCTR10 is functionally compatible for applications where the 50mcd brightness rating and 25° viewing angle meet visibility requirements. The 0.1V forward voltage difference (2.1V vs. 2.2V) is within acceptable operating range. Physical dimensions differ by up to 0.29mm in length and 0.08mm in height; verify PCB layout and assembly clearance before substitution.
Q: What are the key differences between these two green LEDs?
A: The primary differences are brightness (100mcd vs. 50mcd), viewing angle (20° vs. 25°), lens diameter (1.78mm vs. 1.90mm), and overall dimensions. Both components share identical peak wavelength (565nm), package type (2-SMD Z-Bend), and regulatory compliance status.
Q: Are there any electrical compatibility concerns when substituting the CMD9121VGCTR10?
A: The forward voltage difference of 0.1V (2.1V vs. 2.2V) is within standard operating tolerance for LED indication circuits. Both components operate at 20mA test current. Circuit design should accommodate the typical forward voltage of the selected component.
Q: Does the CMD9121VGCTR10 include bottom entry mounting?
A: Yes, the CMD9121VGCTR10 includes bottom entry mounting feature in addition to standard surface mount capability. This feature does not affect compatibility with standard Z-Bend SMD assembly processes.
Q: What is the impact of the 50mcd brightness difference?
A: The CMD9121VGCTR10 provides 50% of the brightness of the AM27SGC09 (50mcd vs. 100mcd). This is suitable for applications where indicator visibility is not brightness-critical or where ambient lighting conditions support lower brightness operation. Applications requiring high-brightness indication should retain the AM27SGC09.
Q: Are both components RoHS3 compliant?
A: Yes, both the AM27SGC09 and CMD9121VGCTR10 are ROHS3 compliant and REACH unaffected, satisfying environmental and regulatory requirements for equivalent selection.
Q: What packaging options are available for these components?
A: The AM27SGC09 is available in standard packaging. The CMD9121VGCTR10 is supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes.
Q: How do the viewing angles affect application suitability?
A: The AM27SGC09 provides a 20° viewing angle for more directional indication. The CMD9121VGCTR10 offers a 25° viewing angle for wider visibility distribution. Select based on application requirements for indicator visibility direction and coverage area.
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