QL205HT LED Red Clear 3MM T-1 Through Hole - Equivalent & Substitute Parts

Part Overview

The QL205HT is a red LED indicator in a 3mm T-1 through-hole package manufactured by onsemi. This component is classified as an LED Indication discrete radial device designed for circuit board mounting applications. The product status is obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

QL205HT

onsemiIn Stock: 738QL205HT Datasheet

Current PartRFQ

5219216F

DialightIn Stock: 27365219216F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the QL205HT is determined by the following critical parameters:

• Mounting Type: Through Hole (radial configuration required)
• Package / Case: Radial
• Supplier Device Package: 3mm diameter form factor
• Height compatibility: Maximum 6.00mm acceptable for most PCB layouts
• Color: Red LED indication
• Functional category: LED Indication - Discrete

The substitute part 5219216F from Dialight meets these core mechanical and functional requirements. Both components share identical mounting methodology, package classification, and 3mm form factor specifications. The substitute maintains compatibility with through-hole PCB designs originally specified for the QL205HT.

Parameter Comparison

Engineering Selection Recommendations

The 5219216F from Dialight is a direct mechanical substitute for the obsolete QL205HT. Both components are classified under the same HTSUS code and share identical export control designations (ECCN EAR99). The substitute maintains unlimited moisture sensitivity rating (MSL 1), ensuring equivalent environmental performance in standard operating conditions.

The primary distinction is regulatory compliance: the 5219216F achieves ROHS3 compliance, whereas the QL205HT is RoHS non-compliant. For applications subject to RoHS directives or modern procurement standards, the 5219216F provides a compliant alternative. Both components maintain REACH unaffected status.

The height differential (5.20mm versus 6.00mm maximum) is within typical PCB layout tolerances for through-hole LED applications and does not present mechanical interference concerns in standard designs.

Frequently Asked Questions (FAQ)

Q: Can the 5219216F directly replace the QL205HT in existing PCB designs?

A: Yes. Both components use identical through-hole radial mounting, 3mm form factor, and radial package classification. The mechanical footprint is compatible with designs originally specified for the QL205HT.

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

A: The QL205HT has a maximum height of 5.20mm, while the 5219216F measures 6.00mm maximum. This 0.80mm difference is within standard PCB layout margins for through-hole components and does not typically require design modification.

Q: Does the 5219216F meet modern regulatory requirements?

A: The 5219216F is ROHS3 compliant and REACH unaffected. If your application requires RoHS compliance, the 5219216F satisfies this requirement, whereas the QL205HT does not.

Q: Are there any electrical parameter differences I should consider?

A: The QL205HT datasheet does not specify forward voltage, test current, or wavelength parameters. The 5219216F is rated at 2V forward voltage with 10mA test current and 625nm dominant wavelength. Verify these electrical characteristics against your circuit design requirements before implementation.

Q: What is the packaging difference between these parts?

A: The QL205HT is supplied in bulk packaging, while the 5219216F is also supplied in bulk. Both maintain identical through-hole radial configuration suitable for standard PCB assembly processes.