LTW-2S3D8 Lite-On Electronics, LTW-2S3D8 Datasheet - Page 8

• Manufacturer Part Number: LTW-2S3D8
• Description: Standard LED - Through Hole White Water Clear 17000mcd 20mA
• Manufacturer: Lite-On Electronics
• Type: LED Lampr

Specifications of LTW-2S3D8

• Led Size: T-1 3/4
• Illumination Color: White
• Lens Color/style: Water Clear
• Operating Voltage: 3.1 V to 3.4 V
• Luminous Intensity: 17000 mcd
• Operating Current: 20 mA
• Lens Dimensions: 8.7 mm x 5 mm
• Lens Shape: Dome
• Maximum Operating Temperature: + 80 C
• Minimum Operating Temperature: - 30 C
• Mounting Style: Through Hole
• Viewing Angle: 15 deg
• Package / Case: T-1 3/4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

6. Drive Method
2. Storage
3. Cleaning
4. Lead Forming & Assembly
1. Application
5. Soldering
BNS-OD-C131/A4
Part No. : LTW-2S3D8
parallel in an application; it is recommended that a current limiting resistor be incorporated in the drive circuit. In
series with each LED as shown in Circuit A below.
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LEDs if necessary.
During lead forming, the leads should be bent at a point at least 3mm from the base of LED lens. Do not use
the base of the leadframe as a fulcrum during forming. Lead forming must be done before soldering at normal
When soldering, leave a minimum of 2mm clearance from the base of the lens to the soldering point.
Dipping the lens into the solder must be avoided.
Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.
Recommended soldering condition:
An LED is a current operated device, In order to ensure intensity uniformity on multiple LEDs connected in
The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment,
applications in which exceptional reliability is required, particularly when the failure or malfunction of the
LEDs may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment,
medical and life support systems and safety devices).
The storage ambient for the LEDs should not exceed 30°C temperature or 70% relative humidity. It is
recommended that LEDs out of their original packaging are used within three months.
For extended storage out of their original packaging, it is recommended that the LEDs be stored in a sealed
container with appropriate desiccant or in a dessicator with nitrogen ambient.
communication equipment and household applications). Consult Liteon’s Sales in advance for information on
temperature. During assembly on PCB, use minimum clinch force possible to avoid excessive mechanical stress
Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or catastrophic
failure of the LED. IR re-flow is not suitable process for through hole type LED lamp production.
Temperature
Soldering time
Circuit model A
Soldering iron
LED
300°C Max.
3 sec. Max.
(one time only)
LITE-ON TECHNOLOGY CORPORATION
Circuit model B
P r o p e r t y o f L i t e - O n O n l y
Pre-heat
Pre-heat time
Solder wave
Soldering time
LED
CAUTIONS
Wave soldering
100°C Max.
60 sec. Max.
260°C Max.
5 sec. Max.
(A) Recommended circuit.
(B) The brightness of each LED might
appear different due to the differences
in the I-V characteristics of those LEDs
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