SSL-LX5063YC Yellow LED T-1 3/4 Through Hole Equivalent & Substitute Parts

Part Overview

The SSL-LX5063YC is an active yellow LED indication component manufactured by Lumex Opto/Components Inc., designed for through-hole mounting applications. This discrete 2.1V radial LED operates at 20mA test current and delivers 40mcd luminous intensity with a 30° viewing angle. The component features a clear colorless lens with 5mm T-1 3/4 form factor and 6.00mm maximum height. Finding equivalent and substitute parts becomes necessary when managing inventory constraints, addressing supply chain disruptions, or optimizing cost structures while maintaining functional compatibility within yellow LED indication circuits.

Key Parameters

Parameter	Value
Manufacturer Part Number	SSL-LX5063YC
Manufacturer	Lumex Opto/Components Inc.
Color	Yellow
Lens Transparency	Clear
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) Typical	2.1V
Current - Test	20mA
Millicandela Rating	40mcd
Viewing Angle	30°
Mounting Type	Through Hole
Wavelength - Peak	585nm
Package / Case	Radial
Height (Max)	6.00mm
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the SSL-LX5063YC is determined by the following critical parameters: color (yellow), mounting type (through hole), package configuration (radial), lens size category (5mm T-1 3/4 form factor), forward voltage compatibility (2.0V to 2.1V range), test current (20mA), and regulatory compliance (ROHS3 Compliant, REACH Unaffected). The substitute parts identified—151051YS04000 (Würth Elektronik) and OVLLY8C7 (TT Electronics/Optek Technology)—satisfy these core substitution criteria. Variations in millicandela rating, viewing angle, lens transparency, and peak wavelength represent acceptable parameter ranges within yellow LED indication applications, provided the forward voltage and test current remain within compatible operating windows.

Parameter Comparison

Parameter	SSL-LX5063YC (Lumex)	151051YS04000 (Würth Elektronik)	OVLLY8C7 (TT Electronics/Optek)
Color	Yellow	Yellow	Yellow
Lens Transparency	Clear	Diffused	Clear
Lens Size	5mm, T-1 3/4	4.90mm Dia	5mm, T-1 3/4
Voltage - Forward (Vf) Typical	2.1V	2V	2V
Current - Test	20mA	20mA	20mA
Millicandela Rating	40mcd	450mcd	980mcd
Viewing Angle	30°	40°	100°
Mounting Type	Through Hole	Through Hole	Through Hole
Wavelength - Peak	585nm	592nm	Not Specified
Package / Case	Radial	Radial	Radial
Height (Max)	6.00mm	8.95mm	6.80mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three components—SSL-LX5063YC, 151051YS04000, and OVLLY8C7—maintain active product status and full ROHS3 compliance with REACH unaffected designation, ensuring regulatory alignment for current and future applications. Forward voltage compatibility exists across the group (2.0V to 2.1V range), supporting direct circuit integration without redesign. The SSL-LX5063YC and OVLLY8C7 share identical lens size specifications (5mm T-1 3/4), facilitating mechanical interchangeability in through-hole PCB layouts. Selection between substitutes depends on application-specific requirements: the 151051YS04000 offers diffused lens characteristics with elevated brightness (450mcd) and moderate viewing angle (40°), while the OVLLY8C7 provides maximum brightness (980mcd) with wide viewing angle (100°) and clear lens transparency matching the original SSL-LX5063YC optical profile. Height variations (6.00mm, 8.95mm, 6.80mm) require verification against PCB clearance constraints and enclosure design specifications.

Frequently Asked Questions (FAQ)

Question	Answer
Can SSL-LX5063YC be directly replaced with 151051YS04000?	Yes, with circuit verification. Both components operate at compatible forward voltages (2.1V vs 2V) and 20mA test current. The 151051YS04000 features diffused lens transparency versus clear, and delivers 450mcd versus 40mcd. Height difference (8.95mm vs 6.00mm) requires PCB clearance confirmation. Diffused lens affects light distribution pattern.
Can SSL-LX5063YC be directly replaced with OVLLY8C7?	Yes, with brightness consideration. Both components share 5mm T-1 3/4 lens size, clear lens transparency, and compatible forward voltages (2.1V vs 2V). The OVLLY8C7 delivers significantly higher brightness (980mcd vs 40mcd) and wider viewing angle (100° vs 30°). Height difference (6.80mm vs 6.00mm) is minimal. Circuit current-limiting resistor may require adjustment for brightness matching.
What are the critical substitution parameters for yellow LED T-1 3/4 through-hole components?	Critical parameters include: color (yellow), mounting type (through hole), package configuration (radial), lens size category (5mm T-1 3/4), forward voltage range (2.0V to 2.1V), test current (20mA), and regulatory compliance (ROHS3). Millicandela rating, viewing angle, and lens transparency represent secondary parameters that may vary based on application requirements.
Are there mechanical compatibility concerns between these three parts?	Mechanical compatibility exists for PCB mounting (all radial through-hole configuration). Height variations require verification: SSL-LX5063YC (6.00mm), OVLLY8C7 (6.80mm), and 151051YS04000 (8.95mm). Lens diameter specifications (5mm vs 4.90mm) are functionally equivalent for standard through-hole applications. Enclosure clearance and component density must be evaluated for each substitution.
Do forward voltage differences affect circuit design?	Forward voltage differences (2.1V SSL-LX5063YC versus 2V for both substitutes) are within standard operating tolerance for yellow LED indication circuits. Series current-limiting resistor values may require minor adjustment (approximately 5% variance) to maintain consistent brightness. Circuit voltage supply headroom should accommodate the maximum forward voltage specification.
How do lens transparency differences impact application suitability?	SSL-LX5063YC and OVLLY8C7 feature clear colorless lenses, providing direct yellow light transmission. The 151051YS04000 features diffused yellow lens, which scatters light more broadly and reduces peak brightness perception. Clear lenses suit applications requiring directional indication; diffused lenses suit applications requiring uniform light distribution across wider viewing angles.
What inventory considerations apply to these substitutes?	SSL-LX5063YC: 1077 pcs in stock. 151051YS04000: 2066 pcs in stock. OVLLY8C7: 9819 pcs in stock. Availability varies significantly. Selection may be influenced by supply chain requirements and lead time constraints alongside technical compatibility.