VLMY51Z1AA-GS08 Equivalent & Substitute Parts

Part Overview

The VLMY51Z1AA-GS08 is a yellow 590nm LED in 1414 (3535 Metric) surface mount package manufactured by Vishay Semiconductor Opto Division. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity. The part features a 2.2V typical forward voltage, 140mA test current, and 65 lm/W efficiency rating.

Substiute Parts

VLMY51Z1AA-GS08

Vishay Semiconductor Opto DivisionIn Stock: 2186VLMY51Z1AA-GS08 Datasheet

Current PartRFQ

HSML-A101-S00J1

Broadcom LimitedIn Stock: 37864HSML-A101-S00J1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The HSML-A101-S00J1 (Broadcom Limited) is listed as a manufacturer-recommended substitute. Substitution eligibility is determined by the following parameters:

• Package compatibility: Both parts use 2-PLCC surface mount packages with compatible footprints
• Mounting type: Both are surface mount devices
• Viewing angle: Both provide 120° viewing angle
• Compliance: Both are ROHS3 compliant and REACH unaffected
• Moisture sensitivity: Both rated MSL 2A (4 Weeks)

The substitute part operates at a different wavelength (605nm orange versus 590nm yellow) and different electrical parameters (1.9V Vf, 20mA test current). These differences reflect distinct optical and electrical characteristics that must be evaluated for application compatibility.

Parameter Comparison

Engineering Selection Recommendations

The HSML-A101-S00J1 is an active product from Broadcom Limited, providing supply continuity for the obsolete VLMY51Z1AA-GS08. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, supporting equivalent environmental and regulatory requirements.

Physical compatibility exists within 2-PLCC surface mount footprints, though dimensional variations require PCB layout verification. The substitute operates at reduced forward voltage (1.9V versus 2.2V) and significantly lower test current (20mA versus 140mA), necessitating circuit design review for current-limiting and power supply considerations.

The wavelength shift from 590nm (yellow) to 605nm (orange) represents a distinct optical characteristic change. Application suitability depends on whether the original yellow wavelength was functionally critical or whether orange wavelength operation is acceptable for the intended use.

Frequently Asked Questions (FAQ)

Q: Can HSML-A101-S00J1 be used as a direct drop-in replacement for VLMY51Z1AA-GS08?

A: Physical footprint compatibility exists within 2-PLCC surface mount packages. However, electrical parameter differences (forward voltage, test current) and wavelength change (590nm to 605nm) require circuit design verification before implementation.

Q: What are the key differences between these parts?

A: The main differences are wavelength (yellow 590nm versus orange 605nm), forward voltage (2.2V versus 1.9V), test current (140mA versus 20mA), and product status (obsolete versus active). Physical dimensions also vary slightly.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and rated MSL 2A (4 Weeks), supporting equivalent regulatory and environmental requirements.

Q: Does the height difference affect PCB assembly?

A: The substitute part is taller (2.10mm maximum versus 1.40mm maximum). PCB clearance and component placement must be verified to ensure no interference with adjacent components or enclosure constraints.

Q: What happens if I use the substitute part in a circuit designed for the original part?

A: The reduced forward voltage and test current will alter circuit behavior. Current-limiting resistor values and power supply calculations must be recalculated. The wavelength change will produce orange light instead of yellow, affecting visual indication characteristics.