QL205IT LED Red Diffused 3MM T-1 Through Hole - Equivalent & Substitute Parts

Part Overview

The QL205IT is a red diffused LED indicator in T-1 (3mm) through-hole package manufactured by onsemi. This component is classified as obsolete, making it necessary to identify active equivalent parts for new designs and ongoing production requirements. The QL205IT serves as a discrete radial LED indication component suitable for standard indicator applications requiring through-hole mounting.

Substiute Parts

QL205IT

onsemiIn Stock: 889QL205IT Datasheet

Current PartRFQ

SSL-LX3044LID

Lumex Opto/Components Inc.In Stock: 3869SSL-LX3044LID Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SSL-LX3044LID from Lumex Opto/Components Inc. qualifies as a substitute based on the following alignment of critical parameters:

• Package Compatibility: Both components use T-1 (3mm) radial through-hole packages, ensuring mechanical and electrical socket compatibility
• Mounting Type: Both are through-hole mounted components with identical PCB footprint requirements
• Physical Dimensions: The SSL-LX3044LID height of 4.60mm is within acceptable tolerance for T-1 LED applications, maintaining compatibility with standard LED mounting specifications
• Functional Category: Both are discrete radial LED indication components designed for identical application contexts
• Compliance Status: The SSL-LX3044LID is ROHS3 compliant and REACH unaffected, providing regulatory advantages over the obsolete QL205IT

Parameter Comparison

Engineering Selection Recommendations

The SSL-LX3044LID is the qualified substitute for the obsolete QL205IT based on the following engineering criteria:

• Obsolescence Resolution: The QL205IT is classified as obsolete, necessitating transition to an active product. The SSL-LX3044LID maintains active product status with established supply chain availability.
• Regulatory Compliance: The SSL-LX3044LID achieves ROHS3 compliance, addressing modern regulatory requirements that the non-compliant QL205IT cannot satisfy for new designs and production environments subject to RoHS directives.
• Physical Compatibility: Both components share identical T-1 (3mm) through-hole package specifications, ensuring direct PCB footprint compatibility without layout modifications.
• Certification Alignment: Both components maintain REACH unaffected status and MSL 1 (Unlimited) ratings, ensuring consistent handling and storage requirements across the substitution.

Frequently Asked Questions (FAQ)

Q: Can the SSL-LX3044LID be used as a direct replacement for the QL205IT without PCB modifications?

A: Yes. Both components use identical T-1 (3mm) radial through-hole packages with compatible mechanical and electrical specifications. No PCB layout changes are required for substitution.

Q: What is the primary reason for substituting the QL205IT?

A: The QL205IT is classified as obsolete. The SSL-LX3044LID is an active product with established supply chain availability, ensuring long-term component sourcing for production and new designs.

Q: Are there compliance differences between these components?

A: Yes. The SSL-LX3044LID is ROHS3 compliant, while the QL205IT is RoHS non-compliant. For applications subject to RoHS directives, the SSL-LX3044LID is the required choice.

Q: Do both components have the same moisture sensitivity requirements?

A: Yes. Both components are rated MSL 1 (Unlimited), indicating identical moisture sensitivity levels and storage requirements.

Q: What is the height difference between these components?

A: The QL205IT has a maximum height of 5.20mm, while the SSL-LX3044LID is 4.60mm. This 0.60mm difference is within standard T-1 LED package tolerances and does not affect PCB assembly compatibility.

Q: Are the electrical characteristics of the SSL-LX3044LID documented?

A: The SSL-LX3044LID is specified with a forward voltage of 2V typical, test current of 20mA, and peak wavelength of 635nm. The QL205IT electrical specifications were not provided in the available documentation.