Dynamic information

What is an optocoupler? An optocoupler is a valuable semiconductor device that facilitates the electrical signal transmission between two isolated circuits. It offers many advantages, e.g., removing electrical noise from signals, allowing small digital signals to control larger voltages, preventing disruptions from voltage surges, and more. There are many types of the optocoupler. These include photo-transistor, photo-Triac, photo-SCR, and photo-darlington. In terms of product models, PC817 is the most popular optocoupler circuit. This article explores the various features and parameters of PC817 and its alternatives.

 

 

 

Overview of PC817 Optocoupler

PC817 is one of the most popular optocouplers available on the market. It is a standard optocoupler circuit consisting of a photo-transistor and an infrared LED diode that isolates two parts of a circuit and prevents the transmission of unwanted noise and ground loops. In the opto-isolator IC circuit of PC817, the IR LED utilizes the signal with noise as a power from one circuit and then transfers it to another using infrared. The other part receives the signal and then operates according to the specific design of the circuit.

 

The main appeal of this particular optocoupler is its ease of use. It works well in an electronic circuit for a single task. If you need multiple isolation tasks at the same time, you can use 817 optocouplers with other types of optocouplers that contain IR LEDs and photo-transistors.

 

Key Parameters, Features, and Applications of PC817

PC817 has most of the key characteristics of a standard optocoupler circuit, and it also contains its own specific features. Its specifications/parameters are as follows:

· 4-PIN and SMT Package Type

· NPN Transistor

· 80V Maximum Collector-Emitter Voltage

· 50mA Maximum Collector Current (IC)

· 200 milliWatt Max Collector Dissipation

· 6V Max Emitter-Collector Voltage

· 80V Maximum Collector-Emitter Voltage Range

 

PC817 is suitable for the following applications:

· Computer terminals

· Medical instruments, chemical, and physical equipment

· Electric home appliances, e.g., heaters, fans, etc.

· System appliances and measuring instruments

· Signal transmission between circuits of different impedances and potentials

· Copiers, registers, and automatic vending machines

 

 

The Best PC817 Alternative

PC817 optocoupler circuit is in high demand because of its

ease of use, applications, and set of advantages. However, it is relatively costly. Fortunately, there are several alternatives available, and some of them are actually cheaper with no compromise on quality. Some common alternative options include:

· PC816

· PC17K1

· LV-816

· TLP421

· AK817P

· PS2571-1

· SFH615A

 

Since there are many alternatives available, it is not easy to choose one. For the best value and results, the optocoupler circuit 817 series from Refond is a recommended choice. Made from quality materials and backed by industry-leading research and development, this product ticks all the checkboxes as a reliable PC817 alternative. Here's what this optocoupler circuit offers: This product ticks all the checkboxes as a reliable PC817 alternative. Here's what this optocoupler circuit offers:

u Suitable for household appliances, switching power supply, industrial manufacturing, instrumentation, and more.

u Fulfill the high standards and requirements relevant to electrical isolation, pulse amplifiers, interstage coupling, U fulfill the high standards and requirements relevant to electrical isolation, pulse amplifiers, interstage coupling, level conversion, microcomputer interface circuits, switching circuits, level conversions, instruments and meters, solid-state relays, and more.

u Capable of full electrical isolation with one-way transmission support. The transmission medium of this optocoupler. u Capable of full electrical isolation with one-way transmission support. The transmission medium of this optocoupler prevents interference/influence of the output signal on the input end

u Stable performance, high transmission efficiency, and long overall service life.

u UL, CQC, and VDE certified

 

For more information about optocoupler circuits, please also read the feature and structure of optocouplers.

  

 

Conclusion

PC817 is no doubt one of the most popular standard optocoupler circuits available on the market. But it is relatively expensive. The good news is that excellent alternatives like the optical coupler 817 series from Refond are available. The Optocoupler industry is constantly evolving. That's why we stay up-to-date with the latest trends and technology innovations to meet the demands of today's chip market. We are involved in a number of future development projects in the optocoupler circuit as well as general lighting, AI sensors, semiconductors, mini LED displays, and more. With our reliable product offerings, we bring years of knowledge and experience in the industry to our customers. Our solutions are unique, cost-saving, and customized to cover all our customers' needs.

 

Visit our website to know more about our company and our future endeavors in the industry.