QTLP2823 Yellow LED Axial Through-Hole Equivalent & Substitute Parts

Part Overview

The QTLP2823 is a yellow LED indicator component manufactured by onsemi, designed for discrete 2V axial through-hole applications with flat leads. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The component features a rectangular clear lens with a 2.50mm x 2.00mm form factor and 6mcd brightness rating, suitable for standard indication applications requiring low-current operation at 20mA test current.

Substiute Parts

QTLP2823

onsemiIn Stock: 680QTLP2823 Datasheet

Current PartRFQ

SSL-LXA228SYC

Lumex Opto/Components Inc.In Stock: 1071SSL-LXA228SYC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QTLP2823 is determined by the following critical parameters:

• Color and Wavelength: Yellow emission at 585nm peak wavelength is the primary functional requirement
• Voltage Rating: Forward voltage of 2V establishes circuit compatibility
• Current Rating: 20mA test current defines operational envelope
• Mounting Configuration: Through-hole axial mounting with flat leads ensures mechanical and electrical compatibility
• Package Dimensions: 2.50mm L x 2.00mm W footprint compatibility with PCB layouts
• Lens Transparency: Clear lens maintains optical performance characteristics

The SSL-LXA228SYC from Lumex Opto/Components Inc. qualifies as a substitute based on matching color, wavelength, voltage, current rating, mounting type, and package dimensions. Differences in brightness rating (300mcd vs. 6mcd), viewing angle (25° vs. 150°), lens style (round domed vs. rectangular flat), and physical height (2.80mm vs. 1.50mm) represent functional variations that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The SSL-LXA228SYC represents a functionally compatible substitute for the obsolete QTLP2823 based on matching electrical specifications (2V forward voltage, 20mA test current, 585nm yellow wavelength) and identical mounting configuration (through-hole axial with flat leads).

The SSL-LXA228SYC maintains active product status with RoHS3 compliance, providing long-term supply chain stability compared to the obsolete QTLP2823. Both components carry REACH Unaffected and EAR99 ECCN classifications, maintaining equivalent regulatory compliance.

Design considerations for substitution include the increased brightness of the SSL-LXA228SYC (300mcd vs. 6mcd), which may require circuit-level current limiting adjustments if visual intensity is a constraint. The narrower viewing angle (25° vs. 150°) and increased physical height (2.80mm vs. 1.50mm) necessitate verification of mechanical clearance and optical positioning within the target application. The higher moisture sensitivity level (MSL 4 vs. MSL 1) requires adherence to appropriate storage and handling protocols during manufacturing.

Frequently Asked Questions (FAQ)

Q: Can the SSL-LXA228SYC directly replace the QTLP2823 without circuit modifications?

A: Electrical substitution is valid based on matching forward voltage (2V), test current (20mA), and wavelength (585nm). However, the significantly higher brightness rating (300mcd vs. 6mcd) may require current limiting circuit adjustments to maintain equivalent visual intensity. Mechanical clearance verification is necessary due to increased component height (2.80mm vs. 1.50mm).

Q: What are the key differences between these two yellow LEDs?

A: Primary differences include brightness (300mcd vs. 6mcd), viewing angle (25° vs. 150°), lens geometry (round domed vs. rectangular flat), physical height (2.80mm vs. 1.50mm), and moisture sensitivity (MSL 4 vs. MSL 1). Electrical parameters (voltage, current, wavelength) remain identical.

Q: Is the SSL-LXA228SYC suitable for applications requiring wide viewing angles?

A: No. The SSL-LXA228SYC has a 25° viewing angle compared to the QTLP2823's 150° viewing angle. Applications requiring wide-angle visibility should evaluate alternative components with broader viewing angle specifications.

Q: What moisture handling precautions apply to the SSL-LXA228SYC?

A: The SSL-LXA228SYC carries MSL 4 rating (72-hour floor life), requiring controlled storage at specified temperature and humidity levels. The original QTLP2823 has MSL 1 (unlimited floor life), indicating less stringent moisture control requirements.

Q: Are both components RoHS compliant?

A: The SSL-LXA228SYC is RoHS3 compliant. The QTLP2823 RoHS status is not specified in the provided data. Both components are REACH Unaffected and carry EAR99 ECCN classification.