Equivalent & Substitute Parts for AA3528AYC Yellow LED

Part Overview

The AA3528AYC is an active-status yellow surface-mount LED manufactured by Kingbright, designed for indication applications. This 2-PLCC package component operates at 2.1V forward voltage with a 15mcd luminous intensity and 588nm dominant wavelength. The part is ROHS3 compliant and REACH unaffected, suitable for industrial and commercial electronic assemblies. Substitute parts are identified to address inventory availability, packaging format requirements, or specific application constraints while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Color	Yellow	-
Lens Transparency	Clear	-
Lens Size	2.40	mm Dia
Voltage - Forward (Vf) Typical	2.1	V
Current - Test	20	mA
Millicandela Rating	15	mcd
Viewing Angle	120	°
Wavelength - Dominant	588	nm
Package / Case	2-PLCC	-
Mounting Type	Surface Mount	-
Size / Dimension	3.20 x 2.80	mm L x W
Height (Max)	2.10	mm
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the AA3528AYC are classified based on strict electrical and mechanical parameter alignment. The substitution logic is determined by the following critical parameters:

Primary Compatibility Criteria:

Color: Yellow
Lens Transparency: Clear
Package / Case: 2-PLCC
Mounting Type: Surface Mount
Lens Size: 2.40mm Dia
Physical Dimensions: 3.20mm L x 2.80mm W
Height (Max): 2.10mm
Viewing Angle: 120°

Electrical Tolerance Parameters:

Voltage - Forward (Vf): 1.8V to 2.1V range
Millicandela Rating: 15mcd minimum
Wavelength - Dominant: 587nm to 590nm range

Packaging Format: Substitutes may differ in packaging format (Tape & Reel vs. standard packaging) without affecting electrical or mechanical compatibility.

Moisture Sensitivity Level (MSL): Substitutes with equal or lower MSL ratings (lower number = lower moisture sensitivity) are acceptable for equivalent performance.

Parameter Comparison

Parameter	AA3528AYC (Kingbright)	AA3528YS (Kingbright)	SML-LX2832YC-TR (Lumex)	LY T67K-K2M1-26-Z (ams-OSRAM)
Manufacturer	Kingbright	Kingbright	Lumex Opto/Components Inc.	ams-OSRAM USA INC.
Color	Yellow	Yellow	Yellow	Yellow
Lens Transparency	Clear	Clear	Clear	Clear
Lens Size	2.40 mm Dia	2.40 mm Dia	2.40 mm Dia	2.40 mm Dia
Voltage - Forward (Vf) Typ	2.1V	2.1V	2.1V	1.8V
Current - Test	20mA	20mA	20mA	2mA
Millicandela Rating	15mcd	15mcd	15mcd	15.7mcd
Viewing Angle	120°	120°	120°	120°
Wavelength - Dominant	588nm	588nm	Not specified	587nm
Wavelength - Peak	590nm	590nm	585nm	591nm
Package / Case	2-PLCC	2-PLCC	2-PLCC	2-PLCC
Size / Dimension	3.20 x 2.80 mm	3.20 x 2.80 mm	3.20 x 2.80 mm	3.20 x 2.80 mm
Height (Max)	2.10mm	2.10mm	2.10mm	2.10mm
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	4 (72 Hours)	3 (168 Hours)	3 (168 Hours)	2 (1 Year)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain active product status and full ROHS3 compliance with REACH unaffected designation, ensuring regulatory compatibility across industrial and commercial applications.

AA3528YS (Kingbright): Identical electrical specifications to the main part (2.1V, 20mA, 15mcd, 588nm dominant wavelength) with improved moisture sensitivity rating (MSL 3 vs. MSL 4). Packaging format is Tape & Reel, suitable for high-volume production environments. This substitute provides direct functional equivalence with enhanced environmental protection.

SML-LX2832YC-TR (Lumex Opto/Components Inc.): Maintains all critical mechanical and electrical parameters including 2.1V forward voltage, 20mA test current, and 15mcd luminous intensity. Peak wavelength specification of 585nm falls within acceptable yellow LED range. Supplied in Tape & Reel format with MSL 3 rating. Cross-manufacturer substitution is supported by identical package geometry and electrical performance.

LY T67K-K2M1-26-Z (ams-OSRAM USA INC.): Operates at reduced forward voltage (1.8V) and test current (2mA) compared to the main part, with superior luminous intensity (15.7mcd). Wavelength specifications (587nm dominant, 591nm peak) align with yellow LED standards. MSL 2 rating provides maximum moisture protection. This substitute is suitable for applications requiring lower power consumption or enhanced environmental durability. The TOPLED® series designation indicates optimized optical performance.

Frequently Asked Questions (FAQ)

Q: Can AA3528YS be used as a direct replacement for AA3528AYC?

A: Yes. Both parts are manufactured by Kingbright with identical electrical specifications (2.1V, 20mA, 15mcd, 588nm dominant wavelength), mechanical dimensions (3.20 x 2.80 x 2.10mm), and 2-PLCC package configuration. The primary difference is packaging format (Tape & Reel vs. standard) and improved moisture sensitivity rating (MSL 3). Electrical and optical performance are equivalent.

Q: What are the key differences between the Kingbright AA3528AYC and the Lumex SML-LX2832YC-TR?

A: Both parts share identical forward voltage (2.1V), test current (20mA), luminous intensity (15mcd), viewing angle (120°), and physical dimensions. The Lumex part specifies peak wavelength at 585nm versus 590nm for Kingbright, both within acceptable yellow LED range. Moisture sensitivity is improved in the Lumex part (MSL 3). Cross-manufacturer substitution is supported by matching electrical and mechanical parameters.

Q: Is the ams-OSRAM LY T67K-K2M1-26-Z suitable for direct replacement?

A: The ams-OSRAM part is mechanically and optically compatible but operates at different electrical specifications. Forward voltage is reduced to 1.8V (versus 2.1V), and test current is 2mA (versus 20mA). Luminous intensity is slightly higher at 15.7mcd. This part is suitable for applications requiring lower power consumption or where circuit design accommodates the reduced voltage and current specifications. Wavelength specifications (587nm dominant, 591nm peak) are within yellow LED standards.

Q: Does packaging format affect electrical compatibility?

A: No. Packaging format (Tape & Reel vs. standard packaging) does not affect electrical or optical performance. Format selection is determined by production volume, handling requirements, and assembly process specifications. All listed substitutes maintain identical electrical characteristics regardless of packaging format.

Q: What does MSL rating indicate for these LED components?

A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to ambient conditions (typically 30°C, 85% relative humidity) before soldering without risk of moisture-induced failure. Lower MSL numbers indicate greater moisture sensitivity. AA3528AYC has MSL 4 (72 hours), while substitutes offer MSL 3 (168 hours) or MSL 2 (1 year), providing extended shelf life and reduced handling constraints.

Q: Are all listed parts ROHS3 compliant?

A: Yes. All parts listed—AA3528AYC, AA3528YS, SML-LX2832YC-TR, and LY T67K-K2M1-26-Z—are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial electronic assemblies.

Q: Can wavelength specifications vary between substitutes?

A: Yes, within acceptable ranges. The main part specifies 588nm dominant wavelength with 590nm peak. Substitutes specify 587nm to 588nm dominant wavelength with peak values ranging from 585nm to 591nm. These variations fall within standard yellow LED specifications and do not affect functional compatibility for indication applications.

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