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C503B-GCS-CA0B0891 Equivalent & Substitute Parts
Part Overview
The C503B-GCS-CA0B0891 is a green 5mm through-hole LED manufactured by CreeLED, Inc., designed for indication applications with a dominant wavelength of 527nm. This active product delivers 17750mcd at 20mA forward current with a 3.2V typical forward voltage and 30° viewing angle. The component is housed in a radial package with a maximum height of 12.70mm and features a clear, domed lens. Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative part selections within the same electrical and mechanical parameter envelope.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Color | Green |
| Wavelength - Dominant | 527nm |
| Voltage - Forward (Vf) Typical | 3.2V |
| Current - Test | 20mA |
| Lens Size | 5.00mm Dia |
| Lens Style | Round with Domed Top |
| Lens Transparency | Clear |
| Viewing Angle | 30° |
| Mounting Type | Through Hole |
| Package / Case | Radial |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the C503B-GCS-CA0B0891 is determined by strict equivalence across the following critical parameters: color (green), dominant wavelength (527nm), forward voltage (3.2V typical), test current (20mA), lens size (5.00mm diameter), lens style (round with domed top), lens transparency (clear), viewing angle (30°), mounting type (through hole), and package configuration (radial). All identified substitutes maintain these core electrical and mechanical specifications. Variations in millicandela rating and maximum height are permitted within the substitute group, as these parameters do not affect circuit-level compatibility or mounting footprint constraints for standard through-hole applications.
Parameter Comparison
| Parameter | C503B-GCS-CA0B0891 | C503B-GCN-CA0B0781 | C503B-GCN-CY0C0791 | C503B-GCS-CY0C0791 |
|---|---|---|---|---|
| Color | Green | Green | Green | Green |
| Wavelength - Dominant | 527nm | 527nm | 527nm | 527nm |
| Voltage - Forward (Vf) Typical | 3.2V | 3.2V | 3.2V | 3.2V |
| Current - Test | 20mA | 20mA | 20mA | 20mA |
| Millicandela Rating | 17750mcd | 17750mcd | 19380mcd | 19380mcd |
| Lens Size | 5.00mm Dia | 5.00mm Dia | 5.00mm Dia | 5.00mm Dia |
| Lens Style | Round with Domed Top | Round with Domed Top | Round with Domed Top | Round with Domed Top |
| Lens Transparency | Clear | Clear | Clear | Clear |
| Viewing Angle | 30° | 30° | 30° | 30° |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Height (Max) | 12.70mm | 10.30mm | 10.30mm | 12.70mm |
| Package / Case | Radial | Radial | Radial | Radial |
| RoHS Status | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
All substitute parts maintain active product status and full RoHS compliance with REACH unaffected classification. Selection between C503B-GCS-CA0B0891 and its substitutes is based on availability, inventory levels, and mechanical height constraints specific to the application. C503B-GCN-CA0B0781 and C503B-GCN-CY0C0791 feature reduced maximum height (10.30mm versus 12.70mm), suitable for space-constrained PCB layouts. C503B-GCN-CY0C0791 and C503B-GCS-CY0C0791 provide increased luminous intensity (19380mcd versus 17750mcd) for applications requiring enhanced brightness at equivalent forward voltage and current. All parts share identical electrical characteristics, lens geometry, and mounting configuration, ensuring direct functional interchangeability within the specified parameter set.
Frequently Asked Questions (FAQ)
Q: Can C503B-GCN-CA0B0781 be used as a direct replacement for C503B-GCS-CA0B0891? A: Yes. Both parts share identical electrical parameters (3.2V forward voltage, 20mA test current), wavelength (527nm), lens configuration (5mm clear round domed), viewing angle (30°), and mounting type (through hole radial). The primary difference is maximum height: 10.30mm versus 12.70mm. Substitution is valid if PCB clearance permits the shorter component.
Q: What is the difference between C503B-GCN-CY0C0791 and C503B-GCS-CY0C0791? A: Both parts deliver 19380mcd at identical electrical and optical specifications (3.2V, 20mA, 527nm, 30° viewing angle, 5mm clear lens). The distinction is maximum height: C503B-GCN-CY0C0791 is 10.30mm, while C503B-GCS-CY0C0791 is 12.70mm. Electrical performance and brightness are equivalent; selection depends on available PCB mounting height.
Q: Are all substitute parts RoHS compliant? A: Yes. All parts in this substitution group—C503B-GCS-CA0B0891, C503B-GCN-CA0B0781, C503B-GCN-CY0C0791, and C503B-GCS-CY0C0791—are RoHS compliant with Moisture Sensitivity Level 1 (unlimited shelf life).
Q: Can I use a higher brightness part (19380mcd) in place of the original 17750mcd specification? A: Yes, within the constraint that all other electrical and optical parameters remain identical. C503B-GCN-CY0C0791 and C503B-GCS-CY0C0791 provide increased luminous intensity at the same forward voltage and current, making them suitable for applications where enhanced visibility is acceptable or beneficial.
Q: What mounting considerations apply to the height variation between parts? A: All parts use identical radial through-hole mounting. Height differences (10.30mm versus 12.70mm) affect only vertical PCB clearance and component standoff distance. Verify available mounting height in your specific application before selecting a shorter variant.
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