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LED YELLOW CLEAR 1206 SMD 15-21VYC Equivalent & Substitute Parts
Part Overview
The 15-21VYC is an active yellow LED indication component manufactured by Everlight Electronics Co Ltd, designed for surface mount applications in the 1206 (3216 Metric) package format. This discrete LED operates at 2V forward voltage with a 590nm dominant wavelength and 6mcd brightness rating, suitable for standard indicator applications requiring clear lens optics. Finding equivalent substitute parts is necessary to ensure supply chain continuity, optimize procurement costs, and maintain design flexibility across manufacturing batches and inventory availability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 15-21VYC |
| Manufacturer | Everlight Electronics Co Ltd |
| Color | Yellow |
| Wavelength - Dominant | 590nm |
| Voltage - Forward (Vf) (Typ) | 2V |
| Current - Test | 20mA |
| Millicandela Rating | 6mcd |
| Lens Transparency | Clear |
| Package / Case | 1206 (3216 Metric) |
| Mounting Type | Surface Mount |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts for the 15-21VYC are identified based on the following critical parameters that determine functional compatibility:
Primary Matching Criteria:
- Color: Yellow
- Package / Case: 1206 (3216 Metric)
- Mounting Type: Surface Mount
- Wavelength Range: 585–590nm dominant wavelength (yellow spectrum)
- Voltage - Forward (Vf): 2.0–2.1V typical operating range
- Current - Test: 20mA standard test condition
- Product Status: Active
Allowable Variations:
- Lens Transparency: Clear or Diffused (both acceptable for indication applications)
- Millicandela Rating: 6–8mcd range (brightness variation within acceptable limits for indicator function)
- Viewing Angle: 140–170° (both provide adequate visibility for standard applications)
- Physical dimensions: Minor variations within 1206 package tolerance (3.20mm L × 1.50–1.60mm W, height 1.10–1.30mm max)
The HSMY-C150 substitute meets all primary matching criteria and operates within allowable parameter variations, confirming its suitability as a direct substitute for the 15-21VYC.
Parameter Comparison
| Parameter | 15-21VYC (Everlight) | HSMY-C150 (Broadcom) | Compatibility |
|---|---|---|---|
| Color | Yellow | Yellow | Match |
| Wavelength - Dominant | 590nm | 586nm | Compatible (yellow spectrum) |
| Wavelength - Peak | 585nm | 589nm | Compatible (yellow spectrum) |
| Voltage - Forward (Vf) (Typ) | 2V | 2.1V | Compatible (0.1V variation) |
| Current - Test | 20mA | 20mA | Match |
| Millicandela Rating | 6mcd | 8mcd | Compatible (higher brightness) |
| Lens Transparency | Clear | Diffused | Compatible (different optical characteristic) |
| Viewing Angle | 140° | 170° | Compatible (wider angle) |
| Package / Case | 1206 (3216 Metric) | 1206 (3216 Metric) | Match |
| Mounting Type | Surface Mount | Surface Mount | Match |
| Size / Dimension | 3.20mm L × 1.50mm W | 3.20mm L × 1.60mm W | Compatible (within tolerance) |
| Height (Max) | 1.30mm | 1.10mm | Compatible (lower profile) |
| Product Status | Active | Active | Match |
Engineering Selection Recommendations
Both the 15-21VYC and HSMY-C150 are active products with confirmed availability and established supply chains. Selection between these components should be based on the following engineering considerations:
15-21VYC (Everlight Electronics Co Ltd):
- Clear lens optics provide direct, focused light output
- 6mcd brightness rating suitable for standard indication applications
- 140° viewing angle appropriate for front-facing indicator designs
- Current inventory: 12,100 pcs
HSMY-C150 (Broadcom Limited):
- Diffused lens provides wider light distribution
- 8mcd brightness rating offers enhanced visibility in ambient light conditions
- 170° viewing angle suitable for applications requiring broader visibility
- Lower profile (1.10mm max height) for space-constrained designs
- ROHS3 Compliant and REACH Unaffected certifications confirmed
- Current inventory: 5,868 pcs
Both components operate within compatible electrical parameters (2.0–2.1V forward voltage, 20mA test current) and share identical 1206 package footprints, enabling direct PCB layout compatibility. The choice between clear and diffused lens optics depends on specific application requirements for light distribution and visibility characteristics.
Frequently Asked Questions (FAQ)
Q: Can HSMY-C150 directly replace 15-21VYC on existing PCB layouts?
A: Yes. Both components use the 1206 (3216 Metric) surface mount package with identical footprints (3.20mm length). The HSMY-C150 has a lower maximum height (1.10mm vs. 1.30mm), which provides additional clearance margin. No PCB redesign is required for mechanical compatibility.
Q: What is the difference between clear and diffused lens optics?
A: The 15-21VYC features a clear lens that produces focused, directional light output with a 140° viewing angle. The HSMY-C150 features a diffused lens that scatters light more broadly, providing a 170° viewing angle. Clear lenses are preferred for applications requiring concentrated light intensity in a specific direction; diffused lenses are preferred for applications requiring uniform light distribution across a wider area.
Q: Are there electrical compatibility concerns with the 0.1V forward voltage difference?
A: No. The 0.1V difference between 15-21VYC (2V) and HSMY-C150 (2.1V) is within standard LED manufacturing tolerance and does not present compatibility issues in typical indicator circuit designs. Both components operate at the same 20mA test current and are suitable for identical driver circuits.
Q: Does the higher millicandela rating of HSMY-C150 affect circuit design?
A: No. The HSMY-C150 (8mcd) provides higher brightness than the 15-21VYC (6mcd) while maintaining the same electrical operating parameters. This represents an improvement in visibility performance without requiring circuit modifications. Applications sensitive to brightness levels should account for the increased light output.
Q: What compliance certifications apply to these components?
A: The 15-21VYC is classified as Active product status with ECCN EAR99 and HTSUS 8541.41.0000 designations. The HSMY-C150 carries ROHS3 Compliant and REACH Unaffected certifications, with ECCN EAR99 and HTSUS 8541.41.0000 designations. Both components meet standard export and environmental compliance requirements for electronic components.
Q: Are packaging format differences between Tape & Reel and Cut Tape significant?
A: Packaging format differences (15-21VYC supplied in Tape & Reel; HSMY-C150 supplied in Cut Tape & Digi-Reel) affect procurement and handling logistics but do not impact component performance or PCB assembly compatibility. Both formats are standard for surface mount LED components and are compatible with automated assembly equipment.
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