Product Details
0.4inch 4 Digit Clock LED Display Seven Segment Common Cathode
(1)Package Dimension and internal circuit
(2)Specification details
General Characteristics
Lower working voltage and current
Lighting answering Time <0.1μs, better high frequency,
chromaticity uniformity, high brightness.
Smaller volume, lighter weight, better impact resistance, solid
sealing, good steady.
Long life for 100,000 hours.
Keep scaning and drivering every segment continuously.
Better showeffect and wider visual angle.
Recommend constant current driver.
Protective coating, and rip off when using.
Solder temperature: 260℃,and stay time less than 5 seconds.
Electrical/Optical Characteristics at Ta=25℃ |
Parameter | Symbol | Min | Typ | Max | Unit | Condition |
Luminous lntensity | Iv | 20 | -- | 25 | mcd | If=20 mA |
Peak Wavelength | λP | - | - | - | nm | If=20 mA |
Dominant Wavelength | λd | 600 | -- | 605 | nm | If=20 mA |
Spectral Line Half-Width | △λ | 20 | 20 | 20 | nm | If=20 mA |
Forward Voltage | VF | 1.8 | -- | 2.4 | V | If=20 mA |
Reverse Current | IR | - | - | 20 | μV | VR=6 V |
Luminous intensity matching ratio | Iv-m | | | 1:1.2 | | If=20mA |
Absolute Maximum Ratings at Ta= 25℃ |
Parameter | symbol | Maximum rating | unit |
Power Dissipation | Pd | 50 | mW |
Forward Current | IF | 20 | mA |
Peak Forward Current | IF(Peak) | 80 | mA |
Reverse Voltage | VR | 6 | V |
Operating Temperature | Topr | -40℃ +80℃ | |
Storage Temperature | Tstg | -40℃ +80℃,RH:25%~65%, within 3 months | |
Lead Solder Temperature | Tsol | 260℃ for 5 seconds | |
(3)FAQ
About the quality of the goods
Engineers of our company have more than 20 years experience in
field , advanced equipment and assembly line, go through three main
process before goods leave the factory, every procedure, strict
inspection, ensure that every factory goods is qualified.
About the packing and shipping
The goods need to go through four layers of packaging, first soft
plastic bubble wrap, then wrapped with tape again after place a
layer with bubble wrap into cartons
Time of delivery
The delivery time is normally within 15 days after order placement
Price
Kerun has big production purchasing plans ,this allow us to gain a
comparatively lower purchasing costs than others from suppliers
meanwhile,the raw material suppliers and other spare parts
factories are offering us competitive price than other suppliers
this allows us to pass the competitive price on our customers.
Warranty
Kerun adopt 1-2Years Warranty ,to our customers from the purchased
day on ,when there is a problem ,we will deal with it and offer the
solution immediately according to the LED display usage situation
,the quality resulted problem product will be replaced ,the
customers PI purchasing record is well .recorded and it will not
destroy or lost with any salers change ,then there is always the
solution in 1-2years Guarantee Period
Company Profile
Shenzhen Kerun Optoelectronics Inc. is a high-tech and
well-equipped industrial company, specializing in LED encapsulation and research for high-performance LED
display application products.
Our main products are LED super bright full-color dot matrix, LED
shaped digital, and LED high definition display screen. With more than 10 years of experience in research and development in the LED industry, Kerun currently
occupies 3000 square meters with a registered capital of RMB 10 million and more than 200 employees.
As one of the leading LED encapsulation companies in China, we are
currently in possession of several world-class advanced automatic
assembly lines.
With a group of quality professionals who have devoted themselves to LED design, R&D, production, and marketing for years, Kerun is now a high-standard supplier with
superb LED encapsulation technique, powerful R&D ability, and
high management level.
