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QBLP670-Y Yellow LED 2-PLCC SMD Equivalent & Substitute Parts
Part Overview
The QBLP670-Y is an active yellow indication LED manufactured by QT Brightek (QTB) in 2-PLCC surface mount package. This component is designed for discrete LED indication applications requiring yellow light output at 590nm wavelength. The part is ROHS3 compliant and currently in active production status with 1165 pieces available in inventory.
Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the critical parameters that define this product category: forward voltage, test current, wavelength, lens configuration, package type, and mounting specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Color | Yellow | - |
| Wavelength - Dominant | 590 | nm |
| Voltage - Forward (Vf) Typical | 2 | V |
| Current - Test | 20 | mA |
| Millicandela Rating | 210 | mcd |
| Lens Size | 2.40 | mm Dia |
| Lens Style | Round with Flat Top | - |
| Lens Transparency | Clear | - |
| Viewing Angle | 120 | ° |
| Package / Case | 2-PLCC | - |
| Mounting Type | Surface Mount | - |
| Size / Dimension | 3.20 x 2.80 | mm L x W |
| Height (Max) | 2.10 | mm |
| RoHS Status | ROHS3 Compliant | - |
| Moisture Sensitivity Level | 3 (168 Hours) | - |
Substitute Part Grouping Explanation
Substitution eligibility for the QBLP670-Y is determined by strict equivalence across the following critical parameters:
Electrical Compatibility:
- Forward voltage (Vf) must be 2V typical
- Test current must be 20mA
- Wavelength dominant must be 590nm (yellow spectrum)
Mechanical Compatibility:
- Package type must be 2-PLCC
- Mounting type must be Surface Mount
- Lens size must be 2.40mm diameter
- Lens style must be Round with Flat Top
- Lens transparency must be Clear
- Physical dimensions must be 3.20mm L x 2.80mm W
- Maximum height must be 2.10mm
Regulatory Compliance:
- RoHS3 compliance required
- Moisture Sensitivity Level 3 (168 Hours) required
The XZMYK45WT from SunLED meets all substitution criteria and is classified as a parametric equivalent.
Parameter Comparison
| Parameter | QBLP670-Y (QT Brightek) | XZMYK45WT (SunLED) | Match Status |
|---|---|---|---|
| Color | Yellow | Yellow | Equivalent |
| Wavelength - Dominant | 590nm | 590nm | Equivalent |
| Voltage - Forward (Vf) Typical | 2V | 2V | Equivalent |
| Current - Test | 20mA | 20mA | Equivalent |
| Millicandela Rating | 210mcd | 248mcd | Substitute Higher |
| Lens Size | 2.40mm Dia | 2.40mm Dia | Equivalent |
| Lens Style | Round with Flat Top | Round with Flat Top | Equivalent |
| Lens Transparency | Clear | Clear | Equivalent |
| Viewing Angle | 120° | 120° | Equivalent |
| Package / Case | 2-PLCC | 2-PLCC | Equivalent |
| Mounting Type | Surface Mount | Surface Mount | Equivalent |
| Size / Dimension | 3.20 x 2.80mm | 3.20 x 2.80mm | Equivalent |
| Height (Max) | 2.10mm | 2.10mm | Equivalent |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| Moisture Sensitivity Level | 3 (168 Hours) | 3 (168 Hours) | Equivalent |
Engineering Selection Recommendations
QBLP670-Y Selection Criteria:
- Primary choice when QT Brightek supply chain is preferred
- Active product status with established production history
- 1165 pieces currently in stock
- ROHS3 and REACH compliance confirmed
XZMYK45WT Selection Criteria:
- Substitute when SunLED supply chain offers better availability or lead time
- Higher luminous intensity (248mcd vs 210mcd) provides increased brightness margin
- 10011 pieces in inventory indicates higher stock availability
- Active product status with ROHS3 and REACH compliance
- Identical electrical and mechanical specifications ensure direct substitution
Both parts are active products with full regulatory compliance. Selection between QBLP670-Y and XZMYK45WT is determined by supply chain requirements, inventory availability, and brightness performance needs within the specified parameter envelope.
Frequently Asked Questions (FAQ)
Q: Can XZMYK45WT replace QBLP670-Y in existing designs?
A: Yes. The XZMYK45WT meets all electrical and mechanical specifications required for direct substitution. Forward voltage, test current, wavelength, package type, mounting configuration, and physical dimensions are identical. The higher millicandela rating (248mcd vs 210mcd) represents increased brightness performance within the same electrical operating point.
Q: Are there differences in package handling between these parts?
A: No. Both parts use identical 2-PLCC surface mount packaging with 3.20mm x 2.80mm footprint and 2.10mm maximum height. Moisture Sensitivity Level 3 (168 Hours) is identical for both parts, requiring equivalent storage and handling protocols.
Q: What determines substitution eligibility for yellow 2-PLCC LEDs?
A: Substitution requires equivalence across: 590nm dominant wavelength, 2V forward voltage, 20mA test current, 2-PLCC package type, 2.40mm diameter clear round lens with flat top, 120° viewing angle, surface mount configuration, and identical physical dimensions. Regulatory compliance (ROHS3, MSL 3) must also match.
Q: Does the brightness difference affect circuit design?
A: No. Both parts operate at identical electrical parameters (2V forward voltage, 20mA test current). The brightness difference (210mcd vs 248mcd) is a performance characteristic that does not alter circuit requirements or design specifications.
Q: Are both parts suitable for high-volume production?
A: Yes. Both QBLP670-Y and XZMYK45WT are active products with established production status. Current inventory levels (1165 and 10011 pieces respectively) support production requirements. Selection depends on supply chain strategy and lead time considerations.
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