A. What is a 7 segment led display?
7 segment led display, or seven segment led display, is a form of optoelectronics display component for displaying numerals, decimal points, letters and symbols in all kinds of led digital indicators.
7 segment led display specification of item KHN
1) Type: 3 digit 7 segment led display blue 0.28" digit height
2) Image of display
3) 7 segment led display sizes and pins
4) 7 segment led display circuit diagram
5) 7 segment led display datasheet
Electrical and optical parameters:
Parameter | Symbol | Min | Type | Max | Unit | Test Condition |
Luminous Intensity | Iv | 180 | / | 200 | mcd | If =20mA |
Peak Wavelength | λP | / | / | / | nm | If =20mA |
Dominant Wavelength | λd | 460 | / | 465 | nm | If =20mA |
Forward Voltage | Vf | 2.8 | 3.2 | 3.6 | V | If =20mA |
Reverse Current | Ir | / | / | 50 | μA | Vr =5V |
Forward Current(suggested) | If | 3 | 5-10 | 20 | mA | / |
Absolute Maximum Ratings:
Parameter | Rating | Unit |
Reverse Voltage | 5 | V |
Power Dissipation | 50 | mW/chip |
Operation Temperature | -20 to +85 | °C |
Storage Temperature | -20 to +85 | °C |
Storage Humidity | 45%-85% | RH |
Soldering Temperature(Wave soldering) | 260°C in 3s, Iron soldering<360°C | |
Peak IF(mA)(1/10 duty cycle 0.1ms pulse width) | 60 | mA/chip |
Continuous Forwrd Current | 20 | mA/chip |
B. 7 segment led display common anode and common cathode
Common Cathode, all of the cathode(negative terminals) of the segment led are connected and brought out to a common pin.
Common Anode, all of the anode(positive terminals) of the segment led are connected and brought out to a common pin.
C. General 7 segment led display types
D. 7 segment led display manufacturer
Kohon is located in Shenzhen, China, the city of Electronics. It means rich and effective resources that can be reached.
Kohon, as a qualified optoelectronics display manufacturer of 20 years, specializes in 7 segment led display, dot matrix led display, bar graph led display, LED diode, including design, manufacturing and sales, exporting with factory prices.
How to make 7 segment led display
Factory and equipments of 7 segment led display
E. Why to be the partner with Kohon Optoelectronics?
Quality assurance: By certificate, ISO9001:2008, RoHS, REACH
By production, QC test more than 3 times
By after-sales, 8D report for product problems
Communication: Any doubt? Send enquiry.
Any assistance in need? Inform us.
Not only supplying product service, but also sales-asist for you.
Kohon Opto: 18 years experience since 1999 beginning in electronic component industry
Production capacity of 1,500,000 pcs per day
Skilled workers, engineers and excellent ASM Equipments.
OEM and ODM are available.
F. 7 segment led display package and shipping
Package: Inner -- EPE Foam and small carton box
External -- Carton
a. How about the terms of payment?
Generally it is EXW price and payment by T/T, Western Union and Paypal.
b. How about the Delivery time?
For normal item, it is 7 to 15 workdays up to order quantity.
For customized item, it is 10 to 30 workdays.
c. What is the sample policy?
Generally sample is 5 to 10 pcs, being free, freight is afforded by customer.
d. What is the warranty?
The warranty is 1 year.
e. How about the shipment?
DHL, FedEx, TNT, UPS, EMS, SF EXPRESS, ARAMEX, anyone of them.
f. Is there any discount?
Generally the price is competitive and stable, and 0.1% quantity discount is the policy with quantity up to 100,000 pcs.
G. 7 segment led display supplier