SLC-22YY3F Yellow LED Equivalent & Substitute Parts

Part Overview

The SLC-22YY3F is a yellow diffused through-hole LED manufactured by Rohm Semiconductor, designed for indication applications with a 2.1V forward voltage and 2.5mcd brightness rating. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. Substitute parts must maintain compatibility across electrical characteristics, mechanical form factor, and mounting specifications to ensure direct replacement capability.

Substiute Parts

SLC-22YY3F

Rohm SemiconductorIn Stock: 1136SLC-22YY3F Datasheet

Current PartRFQ

SSL-LX20465YD

Lumex Opto/Components Inc.In Stock: 49809SSL-LX20465YD Datasheet

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XLUY13D

SunLEDIn Stock: 1861XLUY13D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLC-22YY3F are qualified based on the following critical parameters:

Mandatory Compatibility Criteria:

• Color: Yellow
• Lens Transparency: Diffused
• Lens Size: 2.00mm Dia
• Lens Style: Round with Flat Top
• Mounting Type: Through Hole
• Package / Case: Radial
• Forward Voltage (Vf): 2.1V ±0.15V tolerance range
• Current - Test: 10mA to 20mA operational range
• RoHS3 Compliance: Required

Allowable Variation Parameters:

• Millicandela Rating: 2.5mcd to 10mcd (brightness variation acceptable for indication applications)
• Viewing Angle: 70° to 115° (wider angles maintain compatibility)
• Wavelength - Dominant: 585nm to 590nm (yellow spectrum range)
• Height (Max): 5.00mm to 8.00mm (mechanical clearance dependent on application)

Two substitute parts meet these criteria: SSL-LX20465YD (Lumex Opto/Components Inc.) and XLUY13D (SunLED).

Parameter Comparison

Engineering Selection Recommendations

SSL-LX20465YD (Lumex Opto/Components Inc.) is the primary substitute for the SLC-22YY3F. This part maintains identical forward voltage (2.1V), matching lens geometry, and radial through-hole package configuration. The SSL-LX20465YD operates at 20mA test current versus the original 10mA, resulting in higher brightness output (10mcd vs. 2.5mcd). The reduced viewing angle (70° vs. 115°) represents a narrower light distribution pattern. This part is currently in active production status with 49,734 units in stock, ensuring long-term availability. ROHS3 compliance and identical electrical/mechanical specifications support direct substitution in applications where the increased brightness and narrower viewing angle are acceptable.

XLUY13D (SunLED) serves as an alternative substitute with active product status and 1,757 units available. This part maintains the 2.00mm lens size, diffused transparency, and through-hole radial package. The forward voltage is 1.95V (0.15V lower than the original), and the test current matches at 10mA. Brightness output is 7mcd, intermediate between the original and the Lumex option. The viewing angle is 70°, matching the Lumex substitute. The maximum height is 8.00mm, exceeding the original 5.70mm specification. ROHS3 compliance is confirmed. Selection of this part requires verification that the lower forward voltage and increased height do not conflict with circuit design constraints or mechanical clearance requirements.

Both substitutes maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory classification.

Frequently Asked Questions (FAQ)

Q: Can SSL-LX20465YD and XLUY13D be used interchangeably with SLC-22YY3F?

A: Both parts meet the core substitution criteria (color, lens size, lens style, mounting type, package, and forward voltage range). However, they differ in brightness output, viewing angle, and height. Selection depends on application-specific requirements for light intensity, beam width, and mechanical clearance. Direct substitution is possible only if these parameter variations are acceptable within the circuit design.

Q: What is the impact of the SSL-LX20465YD's higher test current (20mA vs. 10mA)?

A: The higher test current results in increased brightness output (10mcd vs. 2.5mcd). Circuit design must accommodate this higher current draw. Forward voltage remains identical at 2.1V, so series resistor calculations require adjustment based on the new 20mA specification to prevent over-current conditions.

Q: Why does XLUY13D have a lower forward voltage (1.95V vs. 2.1V)?

A: The 0.15V difference reflects manufacturing variations across different LED manufacturers. This voltage difference is within acceptable tolerance for indication applications. Circuit designs using current-limiting resistors will automatically compensate for this variation. Verification is required only if the circuit operates near voltage supply limits or uses voltage-sensitive detection circuits.

Q: Are there mechanical compatibility concerns with XLUY13D's 8.00mm height?

A: The XLUY13D maximum height of 8.00mm exceeds the original SLC-22YY3F specification of 5.70mm. Mechanical clearance verification is required for applications with height-constrained PCB layouts or enclosure designs. The SSL-LX20465YD at 5.00mm height provides better mechanical compatibility with the original specification.

Q: Do all substitute parts maintain the same regulatory compliance?

A: Yes. Both SSL-LX20465YD and XLUY13D are ROHS3 compliant and REACH unaffected, matching the original SLC-22YY3F classification. All parts carry EAR99 ECCN and 8541.41.0000 HTSUS codes.

Q: What is the difference in viewing angle between the original and substitutes?

A: The SLC-22YY3F provides a 115° viewing angle (wider light distribution). Both substitutes (SSL-LX20465YD and XLUY13D) offer 70° viewing angles (narrower, more focused light distribution). Applications requiring wide-angle indication may experience reduced visibility with the substitute parts. Applications requiring focused indication will benefit from the narrower beam pattern.