SPEC NO: DSAL0328 REV NO: V.4B DATE: SEP/01/2012 PAGE: 1 OF 6

APPROVED: WYNEC CHECKED: Allen Liu DRAWN: F.Cui ERP: 1201006689

3.5x2.8mm Surface Mount LED Lamp

Part Number: AA3528SYSK Super Bright Yellow

Features:

Single color, providing a uniform light output.
Compatible with all Surface Mount Technology (SMT) assembly and soldering processes.
Available on tape and reel for automated assembly.
Ideal for backlighting applications in various electronic devices.
Packaged in reels of 2000pcs each for efficient handling and storage.
Classified under Moisture Sensitivity Level 3, ensuring reliability in diverse environments.
Compliant with RoHS standards, supporting environmentally friendly manufacturing practices.
Description:

The AA3528SYSK Super Bright Yellow LED Lamp is crafted with an AlGaInP light-emitting diode chip on a GaAs substrate. This device is designed to deliver high luminous intensity with a yellow color output, making it suitable for a wide range of applications that require bright and clear backlighting.

Handling Precautions:

Given the softer and more flexible nature of silicone encapsulation compared to epoxy, special care must be taken to avoid damage during assembly. Observing the following precautions will help ensure the longevity and performance of the LED lamps:

Handle components by the side surfaces using forceps or suitable tools to prevent lens damage.
Avoid direct contact with the silicone lens surface to prevent internal circuitry damage.
Do not stack assembled PCBs with exposed LEDs to avoid impact damage.
Ensure the SMD pickup nozzle's inner diameter matches the LED size and use a pliable material tip to prevent scratching.
Accurately program component dimensions in the pick-and-place machine for precise handling.
Be cautious of corrosive substances like H2S, which may affect the silver plating of the leadframe due to silicone's gas permeability.
Selection Guide:

θ1/2 represents the angle from the optical centerline where the luminous intensity is half of the peak value.
Luminous intensity and flux are within a tolerance of +/-15%.
Luminous intensity values are traceable to CIE127-2007 compliant national standards.
Absolute Maximum Ratings at TA=25°C:

Electrical / Optical Characteristics at TA=25°C:

Wavelength tolerance: +/-1nm.
Forward Voltage tolerance: +/-0.1V.
Wavelength values are traceable to CIE127-2007 compliant national standards.
Part No. Dice Lens Type Viewing Angle [1]:

AA3528SYSK Super Bright Yellow (AlGaInP) Water Clear: 80 200 120°
Symbol Parameter Device Typ. Max. Units Test Conditions:

λpeak Peak Wavelength: Super Bright Yellow 590 nm @ IF=20mA
λD Dominant Wavelength: Super Bright Yellow 590 nm @ IF=20mA
Δλ1/2 Spectral Line Half-width: Super Bright Yellow 20 nm @ IF=20mA
C Capacitance: Super Bright Yellow 20 pF @ VF=0V; f=1MHz
VF Forward Voltage: Super Bright Yellow 2.2 - 2.5 V @ IF=20mA
IR Reverse Current: Super Bright Yellow 10 uA @ VR=5V
Parameter Super Bright Yellow Units:

Power dissipation: 75 mW
DC Forward Current: 30 mA
Peak Forward Current: 175 mA
Reverse Voltage: 5 V
Operating Temperature: -40°C To +85°C
Storage Temperature: -40°C To +85°C
Reflow Soldering:

Reflow soldering is recommended for assembly, with a specific soldering profile provided. Other soldering methods may cause damage to the product.

Reflow Soldering Pattern (Units: mm; Tolerance: ± 0.1):

Reel Dimension:

Tape Dimensions (Units: mm):

PACKING & LABEL SPECIFICATIONS AA3528SYSK: