QL484HT LED Red Clear 3MM T-1 Through Hole - Equivalent & Substitute Parts

Part Overview

The QL484HT is a red clear 3MM T-1 through hole LED manufactured by onsemi, classified as an LED indication discrete radial component. This part is currently obsolete, making identification of suitable substitute components essential for ongoing design support, maintenance, and production continuity. The through hole radial package and T-1 form factor establish the primary mechanical and electrical compatibility criteria for equivalent parts.

Substiute Parts

QL484HT

onsemiIn Stock: 971QL484HT Datasheet

Current PartRFQ

SSL-LX507DT3SRT

Lumex Opto/Components Inc.In Stock: 909SSL-LX507DT3SRT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the QL484HT must satisfy the following criteria based on provided specifications:

• Mounting Type: Through Hole radial configuration
• Package Classification: T-1 or T-1 3/4 form factor (compatible with standard LED through hole footprints)
• Height Compatibility: Maximum height within typical PCB clearance tolerances
• Regulatory Compliance: RoHS and REACH status for modern production environments
• Moisture Sensitivity: MSL rating of 1 or equivalent for unlimited shelf life storage

The SSL-LX507DT3SRT qualifies as a substitute based on through hole radial mounting, T-1 3/4 package compatibility, and active product status with modern compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The SSL-LX507DT3SRT serves as an active substitute for the obsolete QL484HT based on the following engineering criteria:

• Both components share radial through hole mounting architecture and compatible T-1 form factor packages
• The SSL-LX507DT3SRT maintains MSL 1 rating, ensuring equivalent storage and handling requirements
• The substitute achieves ROHS3 compliance, meeting modern regulatory requirements for new production
• Both parts carry identical ECCN and HTSUS classifications, maintaining export and tariff consistency
• The T-1 3/4 package of the substitute provides mechanical compatibility with standard LED through hole PCB footprints, with a maximum height of 7.00mm compared to the original 4.10mm

Design teams should verify PCB clearance specifications when transitioning from the QL484HT to the SSL-LX507DT3SRT due to the increased height dimension.

Frequently Asked Questions (FAQ)

Q: Can the SSL-LX507DT3SRT directly replace the QL484HT in existing designs?

A: Both components use radial through hole mounting with compatible T-1 form factor packages. PCB footprint compatibility is maintained. However, the SSL-LX507DT3SRT has a maximum height of 7.00mm versus the QL484HT at 4.10mm. Verify available PCB clearance before implementation.

Q: What are the key differences in electrical specifications?

A: The SSL-LX507DT3SRT provides documented electrical parameters including 1.7V forward voltage, 20mA test current, 660nm peak wavelength, and 30mcd brightness rating. The QL484HT specifications for these parameters were not provided in available documentation.

Q: Are there compliance differences between these parts?

A: The QL484HT is RoHS non-compliant, while the SSL-LX507DT3SRT achieves ROHS3 compliance. Both maintain REACH Unaffected status and identical ECCN/HTSUS classifications.

Q: What is the moisture sensitivity consideration?

A: Both components carry MSL 1 (Unlimited) rating, indicating identical moisture sensitivity levels and storage requirements.

Q: Does the T-1 3/4 package differ from the original T-1 package?

A: The T-1 3/4 designation indicates a larger lens diameter (5mm) compared to standard T-1 packages. Both use radial through hole mounting and are compatible with standard LED PCB footprints. Verify lens size clearance in your specific application.