QL205ID LED Red Diffused 3MM T-1 Through Hole - Equivalent & Substitute Parts

Part Overview

The QL205ID is a red diffused LED indicator in T-1 (3mm) through-hole package manufactured by onsemi. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. The QL205ID serves as a discrete radial LED indication component suitable for through-hole mounting applications requiring red light emission.

Substiute Parts

QL205ID

onsemiIn Stock: 747QL205ID Datasheet

Current PartRFQ

TLHR4605

Vishay Semiconductor Opto DivisionIn Stock: 1147TLHR4605 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the QL205ID is determined by the following critical parameters:

• Package Type: T-1 (3mm) radial through-hole configuration
• Mounting Method: Through-hole PCB mounting
• Functional Category: Red LED indication
• Physical Compatibility: Maximum height and radial lead spacing

The TLHR4605 from Vishay Semiconductor Opto Division qualifies as a substitute based on matching package geometry, mounting type, and functional application as a red LED indicator. Both components utilize identical T-1 (3mm) through-hole packages with radial lead configurations, ensuring mechanical and electrical compatibility in equivalent circuit positions.

Parameter Comparison

Engineering Selection Recommendations

The TLHR4605 is the primary substitute for the obsolete QL205ID. Selection is justified by the following factors:

• Product Status: The TLHR4605 maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete QL205ID.
• Regulatory Compliance: The TLHR4605 achieves ROHS3 compliance, meeting current environmental and regulatory requirements for new designs and production environments requiring RoHS adherence.
• Package Compatibility: Both components share identical T-1 (3mm) through-hole radial package geometry, enabling direct mechanical substitution without PCB redesign.
• Certification Alignment: Both components carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, maintaining export and tariff consistency.

The 0.90mm height difference (QL205ID: 5.20mm maximum vs. TLHR4605: 6.10mm maximum) must be evaluated within specific PCB clearance and enclosure constraints during integration.

Frequently Asked Questions (FAQ)

Q: Can the TLHR4605 be used as a direct replacement for the QL205ID in existing designs?

A: Yes, the TLHR4605 provides mechanical and functional compatibility as a through-hole T-1 (3mm) red LED indicator. The radial package geometry and lead spacing are equivalent. The height difference of 0.90mm must be confirmed against PCB clearance and enclosure specifications.

Q: What is the significance of the RoHS compliance difference between these parts?

A: The QL205ID is RoHS non-compliant, while the TLHR4605 is ROHS3 compliant. For new production or designs subject to RoHS regulations, the TLHR4605 is the appropriate selection. Existing legacy systems using QL205ID may continue operation without modification.

Q: Are there electrical parameter differences between the QL205ID and TLHR4605?

A: The QL205ID electrical parameters are not specified in the available documentation. The TLHR4605 operates at 2V forward voltage with 10mA test current, 6mcd brightness rating, and 120° viewing angle. Electrical compatibility must be confirmed through circuit analysis and application requirements.

Q: What packaging options are available for the TLHR4605?

A: The TLHR4605 is supplied in bulk packaging. The QL205ID packaging format is not specified in available documentation.

Q: Are both components subject to the same export classifications?

A: Yes, both the QL205ID and TLHR4605 carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, maintaining consistent export control and tariff treatment.