AA3528SESK/J4 Equivalent & Substitute Parts

Part Overview

The AA3528SESK/J4 is an orange 605nm LED indication component manufactured by Kingbright in 2-PLCC surface mount package. This discrete LED operates at 2.2V forward voltage with 800mcd luminous intensity and 120° viewing angle. The component is Active status and ROHS3 compliant, designed for standard indication applications requiring clear lens orange light emission.

Substitute parts are identified to address inventory availability, extended lead times, or design flexibility requirements while maintaining functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
Wavelength - Dominant	605	nm
Wavelength - Peak	611	nm
Voltage - Forward (Vf) Typical	2.2	V
Current - Test	20	mA
Millicandela Rating	800	mcd
Viewing Angle	120	°
Lens Size	2.40	mm Dia
Package / Case	2-PLCC	—
Size / Dimension	3.20 x 2.80	mm L x W
Height (Max)	2.10	mm
Mounting Type	Surface Mount	—
Color	Orange	—
Lens Transparency	Clear	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	3 (168 Hours)	—

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on parametric alignment with AA3528SESK/J4:

Parametric Equivalents maintain identical or near-identical electrical and mechanical specifications:

AA3528SES/J4 (Kingbright): Same manufacturer, identical wavelength, voltage, package, and dimensions. Millicandela rating 850mcd represents minor brightness variation within acceptable tolerance.
VFHA1104LS-TR (Stanley Electric): Orange 606nm wavelength, 2-PLCC package, identical dimensions and viewing angle. Forward voltage 2.6V and test current 50mA represent operational parameter differences requiring circuit evaluation.

Similar Substitutes share core functional characteristics but with notable parameter deviations:

SML-Z14D4TT86 (Rohm Semiconductor): Orange 605nm wavelength, 2-PLCC package, identical dimensions. Forward voltage 2V and test current 50mA differ from primary part.
SML-Z14DTT86A (Rohm Semiconductor): Orange 605nm wavelength, 2-PLCC package. Forward voltage 1.9V and reduced millicandela rating 280mcd represent significant brightness reduction.
SML-Z14YTT86A (Rohm Semiconductor): Yellow 589nm wavelength, 2-PLCC package, identical dimensions. Color shift from orange to yellow represents functional difference for indication applications.
SML-Z14Y4TT86 (Rohm Semiconductor): Yellow 590nm wavelength, 2-PLCC package. Color and brightness parameters differ substantially from primary part.

Substitution logic is based on: wavelength compatibility (605nm orange preferred), forward voltage tolerance, package/case equivalence (2-PLCC), physical dimensions, and mounting type (Surface Mount).

Parameter Comparison

Parameter	AA3528SESK/J4	AA3528SES/J4	VFHA1104LS-TR	SML-Z14D4TT86	SML-Z14DTT86A	SML-Z14YTT86A	SML-Z14Y4TT86
Manufacturer	Kingbright	Kingbright	Stanley Electric	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor
Color	Orange	Orange	Orange	Orange	Orange	Yellow	Yellow
Wavelength - Dominant (nm)	605	605	606	605	605	589	590
Wavelength - Peak (nm)	611	611	611	—	—	—	—
Voltage - Forward Vf (V)	2.2	2.2	2.6	2.0	1.9	2.0	2.1
Current - Test (mA)	20	20	50	50	20	20	50
Millicandela Rating (mcd)	800	850	910	710	280	280	710
Viewing Angle (°)	120	120	120	—	—	—	—
Lens Size (mm Dia)	2.40	2.40	2.40	2.40	2.40	2.40	2.40
Package / Case	2-PLCC	2-PLCC	2-PLCC	2-PLCC	2-PLCC	2-PLCC	2-PLCC
Size / Dimension (mm)	3.20 x 2.80	3.20 x 2.80	3.20 x 2.80	3.20 x 2.80	3.20 x 2.80	3.20 x 2.80	3.20 x 2.80
Height (Max) (mm)	2.10	2.10	2.10	2.05	2.05	2.05	2.05
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)	2A (4 Weeks)	4 (72 Hours)	4 (72 Hours)	4 (72 Hours)	4 (72 Hours)
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitute: AA3528SES/J4

AA3528SES/J4 is the preferred substitute for AA3528SESK/J4. Both components are manufactured by Kingbright with identical electrical specifications: 605nm dominant wavelength, 2.2V forward voltage, 20mA test current, 120° viewing angle, and 2-PLCC package. Physical dimensions and mounting characteristics are identical. Millicandela rating of 850mcd represents a 6.25% increase in luminous intensity, which is within acceptable tolerance for indication applications. Moisture sensitivity level (3, 168 Hours) and RoHS3 compliance are identical. Inventory availability is significantly higher (25,282 pcs vs. 1,003 pcs).

Secondary Substitute: VFHA1104LS-TR

VFHA1104LS-TR (Stanley Electric) is suitable where forward voltage tolerance permits 2.6V operation. Wavelength (606nm dominant, 611nm peak) and viewing angle (120°) match primary specifications. Millicandela rating of 910mcd exceeds primary part by 13.75%. Package, dimensions, and mounting type are identical. Test current specification of 50mA differs from 20mA primary specification. Moisture sensitivity level 2A (4 Weeks) provides superior moisture protection compared to primary part level 3. RoHS3 compliance is maintained. Inventory availability is 5,100 pcs.

Tertiary Substitutes: Rohm Semiconductor SML-Z1 Series

SML-Z14D4TT86 and SML-Z14DTT86A maintain 605nm orange wavelength and 2-PLCC package compatibility. SML-Z14D4TT86 operates at 2.0V forward voltage with 50mA test current and 710mcd brightness. SML-Z14DTT86A operates at 1.9V forward voltage with 20mA test current but reduced 280mcd brightness. Both components have 2.05mm maximum height (0.05mm lower than primary part) and moisture sensitivity level 4 (72 Hours), indicating reduced moisture tolerance. These parts are suitable only where forward voltage variation and brightness reduction are acceptable.

Color-Variant Substitutes: Not Recommended for Direct Replacement

SML-Z14YTT86A and SML-Z14Y4TT86 are yellow (589nm and 590nm) wavelength components. These represent functional color changes from orange indication and are not suitable for direct replacement in applications requiring orange light emission. These parts are listed for reference only where application requirements permit yellow indication substitution.

All substitute parts maintain ROHS3 compliance, Surface Mount mounting type, and 2-PLCC package equivalence with AA3528SESK/J4.

Frequently Asked Questions (FAQ)

Q: Can AA3528SES/J4 be used as a direct replacement for AA3528SESK/J4?

A: Yes. AA3528SES/J4 is a parametric equivalent with identical wavelength (605nm), forward voltage (2.2V), test current (20mA), viewing angle (120°), package (2-PLCC), and physical dimensions. The 850mcd millicandela rating represents a minor brightness increase of 6.25% and is functionally compatible for indication applications.

Q: What are the electrical differences between AA3528SESK/J4 and VFHA1104LS-TR?

A: Forward voltage differs: VFHA1104LS-TR operates at 2.6V compared to 2.2V for AA3528SESK/J4. Test current specification is 50mA versus 20mA. Millicandela rating is 910mcd versus 800mcd. Wavelength (606nm dominant) and viewing angle (120°) are compatible. Circuit design must accommodate the higher forward voltage and test current specifications.

Q: Are the Rohm Semiconductor SML-Z14 series parts suitable substitutes?

A: SML-Z14D4TT86 and SML-Z14DTT86A maintain 605nm orange wavelength and 2-PLCC package compatibility but with electrical parameter variations. SML-Z14D4TT86 operates at 2.0V with 50mA test current and 710mcd brightness. SML-Z14DTT86A operates at 1.9V with 20mA test current but only 280mcd brightness. These parts are suitable only where forward voltage tolerance and brightness reduction are acceptable in circuit design.

Q: Why are SML-Z14YTT86A and SML-Z14Y4TT86 listed if they are not direct replacements?

A: These yellow wavelength components (589nm and 590nm) are listed as reference alternatives for applications where color change from orange to yellow is functionally acceptable. They are not suitable for direct replacement in designs requiring orange indication.

Q: What is the impact of moisture sensitivity level differences?

A: AA3528SESK/J4 has moisture sensitivity level 3 (168 Hours). VFHA1104LS-TR has level 2A (4 Weeks), providing superior moisture protection. Rohm Semiconductor parts have level 4 (72 Hours), indicating reduced moisture tolerance. Moisture sensitivity level affects storage conditions and handling requirements during assembly. Higher MSL ratings require more stringent moisture control during manufacturing.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, consistent with AA3528SESK/J4.

Q: What are the physical dimension constraints for substitution?

A: All substitute parts maintain identical lens size (2.40mm diameter), package dimensions (3.20mm L x 2.80mm W), and mounting type (Surface Mount). Height variations are minimal: AA3528SESK/J4 and VFHA1104LS-TR are 2.10mm maximum height; Rohm Semiconductor parts are 2.05mm maximum height. These 0.05mm differences are within standard PCB assembly tolerances.

Q: Can forward voltage differences affect circuit performance?

A: Yes. Forward voltage differences directly impact LED current and brightness in series-resistor circuits. AA3528SESK/J4 operates at 2.2V; VFHA1104LS-TR at 2.6V; SML-Z14D4TT86 at 2.0V; SML-Z14DTT86A at 1.9V. Circuit resistor values must be recalculated for each substitute to maintain desired brightness and current levels. Test current specifications (20mA vs. 50mA) also affect circuit design.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message