APD3224YC-F01 Equivalent & Substitute Parts

Part Overview

The APD3224YC-F01 is a yellow LED indication component manufactured by Kingbright, designed for surface mount applications in the 1210 (3225 Metric) package format. This active product delivers yellow light at 588nm dominant wavelength with 50mcd brightness output. The component operates at 2.1V forward voltage with a 20mA test current and features a clear, domed lens with 20° viewing angle. Finding equivalent and substitute parts is necessary to address inventory availability, lead time constraints, and application-specific performance requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

APD3224YC-F01

KingbrightIn Stock: 782APD3224YC-F01 Datasheet

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APD3224SYCK-F01

KingbrightIn Stock: 13965APD3224SYCK-F01 Datasheet

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LTST-C930YKT

Lite-On Inc.In Stock: 21476LTST-C930YKT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the APD3224YC-F01 are selected based on strict alignment with the following critical parameters:

Color and Wavelength Compatibility: All substitutes must emit yellow light within the 588–590nm dominant wavelength range to maintain consistent optical performance in indication applications.

Electrical Parameters: Forward voltage (Vf) must remain within 2.0–2.1V range, and test current must be 10–20mA to ensure compatibility with existing circuit designs without requiring modifications to current-limiting resistor values.

Mechanical and Package Compatibility: Substitutes must use surface mount technology with package dimensions compatible with 1210 (3225 Metric) or 1209 (3224 Metric) footprints, maintaining maximum height of 2.40mm for PCB assembly clearance.

Lens Configuration: Clear, domed lens style with viewing angles between 20–25° ensures optical performance consistency in indication circuits.

Compliance and Regulatory Status: All substitutes must maintain ROHS3 compliance, MSL 3 rating, and active product status to ensure long-term availability and regulatory alignment.

Brightness Consideration: Millicandela ratings may vary (16mcd to 1300mcd) based on application requirements; higher brightness substitutes are suitable for applications requiring increased visibility, while lower brightness options are compatible with current-limited designs.

Parameter Comparison

Engineering Selection Recommendations

APD3224SYCK-F01 (Kingbright): This substitute maintains identical package dimensions (1210 / 3225 Metric), lens configuration, and viewing angle to the main part. Forward voltage is 2.0V, which is within acceptable tolerance for most circuit designs. The primary distinction is significantly higher brightness output (1300mcd versus 50mcd), making this substitute suitable for applications requiring enhanced visibility. Both parts share Kingbright manufacturing, ROHS3 compliance, and MSL 3 rating, ensuring consistent supply chain and regulatory alignment.

LTST-C930YKT (Lite-On Inc.): This substitute uses a 1209 (3224 Metric) package with identical footprint dimensions but represents a different manufacturer source. Forward voltage matches at 2.1V, and wavelength characteristics align with the main part (588nm dominant). The test current is reduced to 10mA, and brightness output is lower (16mcd). The viewing angle is slightly wider at 25°. This substitute is suitable for applications where lower brightness is acceptable and where Lite-On component sourcing is preferred. ROHS3 compliance and MSL 3 rating are maintained.

All three parts maintain active product status and full regulatory compliance, supporting long-term design continuity and procurement reliability.

Frequently Asked Questions (FAQ)

Q: Can APD3224SYCK-F01 be used as a direct replacement for APD3224YC-F01?

A: Yes, APD3224SYCK-F01 is a direct mechanical and electrical substitute. Both use the 1210 (3225 Metric) package with identical dimensions and mounting footprint. Forward voltage (2.0V vs. 2.1V) is within acceptable tolerance for standard LED circuit designs. The primary difference is brightness output; APD3224SYCK-F01 delivers 1300mcd compared to 50mcd, making it suitable for applications requiring higher visibility.

Q: What are the package compatibility considerations between 1210 and 1209 metric packages?

A: The 1210 (3225 Metric) and 1209 (3224 Metric) packages share identical footprint dimensions (3.20mm L x 2.40mm W) and maximum height (2.40mm). LTST-C930YKT uses the 1209 package and is mechanically compatible with PCB layouts designed for 1210 components. No layout modifications are required for substitution.

Q: How do the brightness ratings affect circuit design?

A: Brightness (millicandela rating) is determined by LED die efficiency and does not affect forward voltage or test current specifications. APD3224SYCK-F01 (1300mcd) requires no circuit modifications compared to APD3224YC-F01 (50mcd); the same current-limiting resistor value applies. LTST-C930YKT operates at 10mA test current versus 20mA for the main part, allowing for higher series resistance if brightness reduction is desired.

Q: Are all three parts suitable for the same application?

A: Substitutability depends on brightness requirements. APD3224SYCK-F01 is suitable for applications requiring standard to high visibility. LTST-C930YKT is suitable for applications where lower brightness is acceptable or preferred. All three parts maintain identical color, wavelength, lens configuration, and compliance status, making them interchangeable from an optical and regulatory perspective.

Q: What is the significance of MSL 3 rating for these components?

A: MSL 3 (Moisture Sensitivity Level 3) indicates that components must be stored in controlled humidity conditions and used within 168 hours of package opening. All three substitutes share this rating, ensuring consistent handling and storage requirements across the product family.

Q: Do forward voltage differences between 2.0V and 2.1V require circuit recalculation?

A: The 0.1V difference between APD3224SYCK-F01 (2.0V) and APD3224YC-F01 (2.1V) is negligible for most indication applications. Standard LED circuit designs using current-limiting resistors accommodate this tolerance without modification. Verification of circuit performance is not required for typical indicator applications.