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Professional LCD Manufacturer Make LCD Simple
10 Years
| Ask Lasest Price | |
| Brand Name : | ROYAL DISPLAY |
| Model Number : | QJ3301AK |
| Certification : | SGS, ROHS |
| Price : | Negotiable |
| Payment Terms : | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability : | 300K pcs/month |
| Delivery Time : | 15~25 working day |
Common Cathode 20mA emerald green LED Module 3 digit 7 segment display
Product Description
A 7-segment LED display is a common type of electronic display that can show decimal numbers and some alphanumeric characters. It consists of seven individual LED segments arranged in a specific pattern to form the numbers from 0 to 9 and a few additional characters like A, B, C, etc.
Each segment in a 7-segment display represents a specific part of a
digit. The segments are labeled from "a" to "g" and can be lit up
individually or in combination to display different numbers or
characters. The arrangement of segments allows for the
representation of the full range of decimal digits.
| Item | STANDARD Value |
| digit amount | 3 |
| quality | industrial high quality |
| reverse voltage | 5v to 10v |
| reverse current | <0.3mA |
| power dissipation | 50 to 70 mW |
| working temperature | -40 to +120 Celsius degree |
| direct current | 20mA |
| shell color | black |
| mode | common cathode |
Applications
The common pin of the display is usually connected to a power source, and the other pins are connected to the control circuitry that selects which segments to light up. By selectively turning on and off the appropriate segments, you can display different numbers or characters.
For example, to display the number "0," you would light up segments a, b, c, d, e, f, and leave segment g turned off. Similarly, to display the number "1," you would only light up segments b and c.
7-segment LED displays are commonly used in digital clocks, calculators, measuring instruments, and various electronic devices where numerical or limited character displays are required.
Our Service
1. We specializing in the design, development and production of LCD
display module full scheme for more than 10years. Each product
undergoes professional design, debugging, production and quality
inspection to ensure that the product meets shipping standards.
2. Broad selection of off the shelf products can be chosen and most
products are kept in stock and can ship same day.
3. We also offer customed services for you, and can provide
drawings and procedures for customers to confirm.
4. Our products offer sunlight readable options , and each display
offers capacitive and resistive options
5. We provide reliable warranty service and the warranty preriod is
one year.
FAQs
1. Do you offer customized service?
-Yes, we offer OEM&ODM service and send us your requirements.
2. What payment methods do you accept?
-We accept via TT/West Union/Paypal.
3.Do you provide samples?
-Yes, we offer sample but you need to pay sample fee and delivery
fee.
4. How long does it take to produce the product?
-It depends on the product you need. Different needs determine the
production time
5. What's the process for placing an order?
-PO is placed by clients → PI is issued by Royal Display → Payment
by clients → Lead time is confirmed by Royal Display → Shipping
instrction by Clients → Delivery → Cargo tracking → Receipt of
cargo
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