QBLP679-IWK-WW Equivalent & Substitute Parts

Part Overview

The QBLP679-IWK-WW is an active, surface-mount warm white LED indication component manufactured by QT Brightek (QTB). This 6-SMD, J-Lead package device operates at 3.2V forward voltage with a 6000mcd brightness rating and 3000K color temperature. The component is ROHS3 compliant and maintains MSL 3 moisture sensitivity classification.

Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across production cycles. Substitute parts must maintain identical electrical performance, mechanical compatibility, and regulatory compliance to ensure direct interchangeability without circuit redesign.

Substiute Parts

QBLP679-IWK-WW

QT Brightek (QTB)In Stock: 1115QBLP679-IWK-WW Datasheet

Current PartRFQ

QBLP679E-IWK-WW

QT Brightek (QTB)In Stock: 3548QBLP679E-IWK-WW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the QBLP679-IWK-WW is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Forward voltage (Vf) tolerance within acceptable circuit design margins
• Test current specification (60mA)
• Millicandela rating (6000mcd)
• Color temperature (3000K warm white)

Mechanical Compatibility:

• Package type: 6-SMD, J-Lead
• Physical dimensions: 5.00mm L x 5.00mm W, 1.60mm max height
• Lens configuration: 4.00mm diameter, round with flat top, diffused, yellow color
• Mounting type: Surface Mount

Regulatory & Environmental Compliance:

• RoHS3 compliance
• REACH unaffected status
• MSL 3 classification (168 hours)

Series Continuity:

• Base product number: QBLP679
• Manufacturer: QT Brightek (QTB)
• Product status: Active

Substitute parts must satisfy all parameters listed above to ensure direct interchangeability without circuit modification or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

QBLP679E-IWK-WW qualifies as a direct substitute for QBLP679-IWK-WW based on the following engineering criteria:

Electrical Equivalence: The forward voltage differential of 0.1V (3.2V vs. 3.1V) falls within standard LED tolerance specifications and does not require circuit redesign. Both parts operate at identical test current (60mA) and deliver equivalent luminous intensity (6000mcd).

Mechanical Interchangeability: Both parts share identical package specifications (6-SMD, J-Lead), physical dimensions (5.00mm x 5.00mm x 1.60mm max), and optical characteristics (4.00mm diffused yellow lens, 120° viewing angle).

Regulatory Compliance: Both parts maintain ROHS3 compliance, REACH unaffected status, and MSL 3 classification. No additional environmental or regulatory considerations apply to substitution.

Product Status: Both parts carry active product status from QT Brightek (QTB), ensuring ongoing manufacturer support and supply availability.

Supply Chain Consideration: QBLP679E-IWK-WW maintains higher inventory availability (3473 pcs vs. 1099 pcs), supporting production continuity and lead-time optimization.

Frequently Asked Questions (FAQ)

Q: Can QBLP679E-IWK-WW replace QBLP679-IWK-WW without circuit modification?

A: Yes. Both parts are electrically and mechanically equivalent. The 0.1V forward voltage difference (3.2V vs. 3.1V) is within standard LED operating tolerance and does not require circuit redesign or component value adjustment.

Q: Are the optical characteristics identical between these parts?

A: Yes. Both parts deliver 6000mcd brightness at 3000K color temperature with identical lens configuration (4.00mm diffused yellow, round with flat top, 120° viewing angle).

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both QBLP679-IWK-WW and QBLP679E-IWK-WW are ROHS3 compliant, REACH unaffected, and classified as MSL 3 (168 hours).

Q: What is the difference between the part numbers?

A: The designation difference (standard vs. "E" variant) indicates a manufacturer revision within the QBLP679 series. Both parts maintain identical electrical performance, mechanical compatibility, and regulatory status.

Q: Are the package and mounting specifications identical?

A: Yes. Both parts use 6-SMD, J-Lead packaging with identical dimensions (5.00mm L x 5.00mm W, 1.60mm max height) and surface-mount configuration.

Q: Which part should be selected for new designs?

A: Selection between QBLP679-IWK-WW and QBLP679E-IWK-WW depends on supply availability and lead-time requirements. Both parts are functionally equivalent and suitable for new designs.

Q: Is there any performance difference in brightness or color temperature?

A: No. Both parts deliver identical 6000mcd brightness and 3000K warm white color temperature.