HLMAQL00A LED Equivalent & Substitute Parts

Part Overview

The HLMAQL00A is a yellow LED indication component manufactured by onsemi, designed for through-hole axial mounting applications. This subminiature T-1 3/4 device features a 1.9V forward voltage and 500mcd brightness rating with a 25° viewing angle. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support and component procurement.

Substiute Parts

HLMAQL00A

onsemiIn Stock: 986HLMAQL00A Datasheet

Current PartRFQ

HLMA-QL00

Broadcom LimitedIn Stock: 2342HLMA-QL00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HLMAQL00A is determined by the following critical parameters:

• Mounting Type & Package: Through-hole axial configuration with flat leads and subminiature T-1 3/4 form factor
• Electrical Characteristics: Forward voltage of 1.9V and test current of 20mA
• Optical Performance: 500mcd brightness rating and wavelength in the 590nm range (yellow/amber spectrum)
• Physical Dimensions: Lens size approximately 1.75-1.78mm diameter with round domed top
• Mechanical Compatibility: Height and lead configuration suitable for PCB through-hole assembly

The HLMA-QL00 manufactured by Broadcom Limited meets these substitution criteria, with compatible electrical ratings, similar optical characteristics, and equivalent mechanical form factor.

Parameter Comparison

Engineering Selection Recommendations

The HLMAQL00A is classified as obsolete, necessitating component substitution for new procurement and system maintenance. The HLMA-QL00 from Broadcom Limited is the qualified substitute based on electrical and mechanical compatibility.

Compliance Considerations: Both components maintain REACH Unaffected status, ensuring regulatory compliance. The HLMA-QL00 carries RoHS3 compliance certification, providing enhanced environmental compliance for new designs. The substitute component is currently in active production status, ensuring long-term availability.

Moisture Sensitivity: The original component specifies MSL 1 (unlimited), while the substitute is rated MSL 2A (4 weeks). This difference requires standard moisture control procedures during storage and handling for the substitute component.

Optical Performance: The substitute exhibits a narrower viewing angle (15° versus 25°), which may impact applications requiring wide-angle light distribution. Peak wavelength variation (592nm versus 590nm) remains within the yellow/amber spectrum and is optically compatible.

Frequently Asked Questions (FAQ)

Q: Can the HLMA-QL00 directly replace the HLMAQL00A in existing designs?

A: Yes, the HLMA-QL00 is electrically and mechanically compatible for through-hole axial mounting applications. Both components share identical forward voltage (1.9V), test current (20mA), and brightness rating (500mcd). Physical dimensions are within tolerance for PCB assembly compatibility.

Q: What is the significance of the viewing angle difference between these components?

A: The HLMAQL00A specifies a 25° viewing angle, while the HLMA-QL00 provides a 15° viewing angle. This narrower angle in the substitute may affect applications requiring wide-angle light distribution. System designers should evaluate whether the reduced viewing angle impacts the intended application's visibility requirements.

Q: Are there moisture sensitivity differences between these components?

A: Yes. The HLMAQL00A is rated MSL 1 (unlimited moisture sensitivity level), while the HLMA-QL00 is rated MSL 2A (4 weeks). The substitute requires standard moisture control during storage and handling. Components should be stored in dry conditions and used within the specified timeframe after packaging removal.

Q: What is the wavelength difference, and does it affect compatibility?

A: The HLMAQL00A specifies 590nm peak wavelength, while the HLMA-QL00 specifies 592nm. Both wavelengths fall within the yellow/amber spectrum and are optically compatible for indication applications. The 2nm difference is imperceptible to human vision and does not affect functional compatibility.

Q: Why is the original component obsolete?

A: The HLMAQL00A is classified as obsolete by onsemi. The HLMA-QL00 from Broadcom Limited is the active production equivalent, ensuring continued availability for component procurement and system support.

Q: Are there any compliance certifications I should consider?

A: Both components maintain REACH Unaffected status. The substitute component (HLMA-QL00) carries RoHS3 compliance certification, providing enhanced environmental compliance for new designs and future regulatory requirements.