LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Features
* Designed for ease in circuit board assembly.
* Black case enhance contrast ratio.
* Solid state light source.
* Reliable and rugged.
Package Dimensions
Lamp Part No. Lens Source Color
LTL-10223WP Red Diffused Hi.Eff.Red
Notes:
1. All dimensions are in millimeters (inches).
2. Tolerance is ±0.25mm(.010") unless otherwise noted.
3. The holder color is black.
4. The holder raw material is PC.
5. Specifications are subject to change without notice.
Part No. : LTL-523-11 Page : 1 of 6
BNS-OD-C131/A4
LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Absolute Maximum Ratings at Ta=25℃
Parameter Maximum Rating Unit
Power Dissipation 100 mW
Peak Forward Current
(1/10 Duty Cycle, 0.1ms Pulse Width)
120 mA
DC Forward Current 30 mA
Derating Linear From 50℃ 0.4 mA/℃
Reverse Voltage 5 V
Operating Temperature Range -55℃ to + 100℃
Storage Temperature Range -55℃ to + 100℃
Lead Soldering Temperature
[1.6mm(.063") From Body]
260℃ for 5 Seconds
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LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Electrical Optical Characteristics at Ta=25℃
Parameter Symbol Min. Typ. Max. Unit Test Condition
Luminous Intensity IV 19 60 mcd IF = 10 mA
Note 1,4
Viewing Angle 2θ1/2 60 deg Note 2 (Fig.6)
Peak Emission Wavelength λp 635 nm
Measurement
@Peak (Fig.1)
Dominant Wavelength λd 623 nm Note 3
Spectral Line Half-Width Δλ 40 nm
Forward Voltage VF 2.0 2.6 V IF = 20 mA
Reverse Current IR 100
μA VR = 5V
Capacitance C 20 PF VF = 0 , f = 1MHZ
NOTE: 1. Luminous intensity is measured with a light sensor and filter combination that approximates the CIE
eye-response curve.
2. θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.
3. The dominant wavelength, λd is derived from the CIE chromaticity diagram and represents the single
wavelength which defines the color of the device.
4. Iv needs ±15% additionary for guaranteed limits.
Part No. : LTL-523-11 Page : 3 of 6
BNS-OD-C131/A4
LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
Typical Electrical / Optical Characteristics Curves
(25℃ Ambient Temperature Unless Otherwise Noted)
Part No. : LTL-523-11 Page : 4 of 6
BNS-OD-C131/A4
LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
CAUTIONS
1. Application
The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment,
communication equipment and household applications). Consult Liteon’s Sales in advance for information on
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).
2. Storage
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.
3. Cleaning
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LEDs if necessary.
4. Lead Forming & Assembly
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
temperature. During assembly on PCB, use minimum clinch force possible to avoid excessive mechanical stress
5. Soldering
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 (for Lamp):
Soldering iron Wave soldering
Temperature
Soldering time
300°C Max.
3 sec. Max.
(one time only)
Pre-heat
Pre-heat time
Solder wave
Soldering time
100°C Max.
60 sec. Max.
260°C Max.
10 sec. Max.
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.
6. Drive Method
An LED is a current operated device, In order to ensure intensity uniformity on multiple LEDs connected in
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.
Circuit model A Circuit model B
LED
LED
Part No. : LTL-523-11 Page : 5 of 6
BNS-OD-C131/A4
(A) Recommended circuit.
(B) The brightness of each LED might
appear different due to the differences
in the I-V characteristics of those
LEDs
LITE-ON TECHNOLOGY CORPORATION
Property of Lite-On Only
7. Others
The appearance and specifications of the product may be modified for improvement, without prior notice.
Part No. : LTL-523-11 Page : 6 of 6
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