QL205YT LED Yellow Clear 3MM T-1 Through Hole - Equivalent & Substitute Parts

Part Overview

The QL205YT is a yellow 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 The product status is obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support, maintenance, and production continuity.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

QL205YT

onsemiIn Stock: 1006QL205YT Datasheet

Current PartRFQ

HLMP-1401

Broadcom LimitedIn Stock: 27201HLMP-1401 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the QL205YT are identified based on the following critical parameters that determine functional and mechanical compatibility:

• Mounting Type: Through Hole (radial configuration required)
• Package / Case: Radial T-1 form factor
• Lens Size: 3mm diameter
• Color: Yellow indication
• Electrical Function: LED indication discrete component

The HLMP-1401 from Broadcom Limited meets these substitution criteria. Both components share identical mounting methodology, package geometry, and intended application as yellow LED indicators in through-hole circuit board designs.

Parameter Comparison

Engineering Selection Recommendations

The HLMP-1401 is the qualified substitute for the obsolete QL205YT based on matching mechanical and functional parameters. Key selection factors:

• Both components utilize identical T-1 3mm through-hole radial package geometry, ensuring direct mechanical compatibility in existing PCB designs without layout modification.
• The HLMP-1401 maintains MSL 1 rating and REACH Unaffected status, consistent with the original component.
• The HLMP-1401 holds Active product status with ROHS3 compliance, providing long-term supply availability and regulatory alignment for new production requirements.
• Height differential (6.35mm vs 5.20mm) is within typical PCB clearance tolerances for through-hole LED applications.
• Electrical parameters (2V forward voltage, 10mA test current, 585nm dominant wavelength) are standard specifications for yellow LED indicators and compatible with typical circuit designs using the QL205YT.

Frequently Asked Questions (FAQ)

Q: Can the HLMP-1401 be used as a direct replacement for the QL205YT in existing designs?

A: Yes. Both components share the T-1 3mm through-hole radial package configuration. Mechanical compatibility is direct. The 1.15mm height difference does not affect standard PCB mounting applications.

Q: What is the primary reason for substitution?

A: The QL205YT is obsolete. The HLMP-1401 is an active product from a major manufacturer, ensuring continued availability and supply chain stability.

Q: Are there compliance differences between these parts?

A: The QL205YT is RoHS non-compliant. The HLMP-1401 is ROHS3 compliant. Both maintain REACH Unaffected and EAR99 ECCN classifications. Selection depends on regulatory requirements for the end application.

Q: What electrical parameters should be verified during substitution?

A: The HLMP-1401 specifies 2V forward voltage and 10mA test current. Original circuit designs using the QL205YT should be reviewed to confirm compatibility with these electrical characteristics.

Q: Are there packaging format differences?

A: Both components are supplied in radial T-1 through-hole format. The HLMP-1401 is available in Bulk packaging, while the QL205YT was supplied in standard through-hole packaging. This does not affect component function or PCB integration.