#linear optocoupler

[edwin2egl]

https://www.futureelectronics.com/p/semiconductors--optoelectronics--isolation-components-optocouplers/fodm2705r2-onsemi-4186558

What is an optocoupler, Transistor Output Optocoupler, high speed optocoupler

MFP4 SMT Single Channel 40 V 3750 Vrms Transistor Output Optocoupler

[anhy2osss]

Reverse isolation, Contact isolation, opto coupler, optical isolator

DIP6 SMT 1 Channel 400 V 4170 Vrms Zero-Cross Triac Optoisolator

[gory2kline]

https://www.futureelectronics.com/p/semiconductors--optoelectronics--isolation-components-optocouplers/fod817dsd-onsemi-3492428

High speed opto, Linear opto couplers, electrical isolation, isolated circuits

DIP4 Surface Mount Single Channel 70 V 5000 Vrms Phototransistor Optocoupler

[electronic-component]

What is a Photocoupler?

1. Introduction to Photocouplers

Photocouplers, also known as optocouplers, are crucial components in modern electronic systems, providing electrical isolation between different parts of a circuit. These devices are designed to transmit signals while maintaining electrical isolation, which is vital for protecting sensitive components from high voltages and minimizing noise interference. A typical photocoupler consists of a light-emitting diode (LED) and a photodetector, such as a photodiode, phototransistor, or photoSCR, enclosed in a single package. The LED emits light in response to an electrical signal, which is then detected by the photodetector on the other side, translating the light signal back into an electrical signal. This isolation ensures that high voltage circuits do not directly affect low voltage circuits, thereby enhancing the safety and reliability of electronic devices.

2. Working Principle of Photocouplers

The working principle of a photocoupler is based on optical coupling. When an electrical signal passes through the LED within the photocoupler, it emits light. This light is directed towards a photodetector that is positioned within the same package but electrically isolated from the LED. The photodetector converts the received light back into an electrical signal, which is then transmitted to the output side of the photocoupler. This process effectively separates the input and output circuits, allowing the photocoupler to function as a bridge between different sections of an electronic system. The degree of isolation provided is typically measured in terms of voltage and is a critical factor in ensuring the protection and integrity of the electronic components.

3. Types and Applications

Photocouplers come in various types, each suited for specific applications. The most common types include phototransistor, photometric diode, and photoSCR (silicon-controlled rectifier) types. Phototransistor photocouplers are widely used in digital signal transmission due to their high gain and fast switching capabilities. Photometric diode photocouplers are often utilized in analog signal applications where linearity is important. PhotoSCRs, on the other hand, are employed in power switching applications due to their ability to handle high currents and voltages. Applications of photocouplers extend to industrial automation, signal isolation in communication systems, and electrical equipment protection. They are essential in scenarios where electrical isolation is necessary to prevent interference and ensure system reliability.

4. Advantages and Limitations

The primary advantage of photocouplers is their ability to provide electrical isolation between different parts of a circuit, which is crucial for protecting sensitive components from high voltages and reducing noise interference. Additionally, photocouplers are beneficial in signal transmission over long distances, as they help to maintain signal integrity. However, there are limitations to consider. Photocouplers can suffer from aging effects, such as decreased light emission from the LED over time, which can impact their performance. Additionally, the speed of signal transmission can be limited by the characteristics of the LED and photodetector, affecting high-frequency applications. Careful selection and proper implementation are required to optimize their performance and longevity.

5. Future Trends and Innovations

As technology advances, photocouplers are evolving to meet the demands of increasingly sophisticated electronic systems. Innovations are focusing on enhancing the performance, reliability, and efficiency of photocouplers. For instance, developments in materials and packaging techniques are aimed at improving the speed and isolation characteristics of these components. There is also a growing trend towards integrating photocouplers with other semiconductor technologies to create more compact and versatile solutions. In addition, the development of photocouplers that operate effectively in extreme environments, such as high temperatures and harsh conditions, is expanding their range of applications. As electronic systems continue to evolve, the role of photocouplers in ensuring safe and reliable operation will remain pivotal, driving ongoing research and development in this field.

[edrd2ier]

PS2801 Series Single Channel 80 Vce 2500 Vrms Photocoupler - SSOP-4

[femaleblock]

The most important parameter is the current amplification coefficient

AC-DC input type, China pcb connector Manufacturers so on. Foreign manufacturers include British ISOCOM, etc., and domestic manufacturers' Suzhou Semiconductor Plant. 2.2 Product classification of linear optocouplers The typical products and main parameters of linear optocouplers are shown in Table 1. These optocouplers all use photosensitive transistors as the receiving tube.

Table 1 The main parameters of typical linear optocouplers Product model CTR/%V (BR ) CE0/V manufacturer package type PC816A 80～160 70 SharpDZP-4 base is not lead PC817A 80～160 35 Sharp SFH610A-2 63～125 70 simens NEC2501-H 80～160 40 NEC CNY17-2 63～125 70 MotorolnDZP -4 base is not drawn CNY17-3 100～200 70 simens SFH600-1 63～125 70 simens SFH600-2 100～200 70 simens CNY75GA 63～125 90 TemicDZP-4 base is not drawn CNY75GB 100～200 90 Temic MOC8101 50 ～80 30 Motoroln MOC8102 73～117 30 Motoroln 3. Technical parameters of optical coupler

The technical parameters of optical coupler mainly include LED forward voltage drop VF, forward current IF, current transfer ratio CTR, input stage and output stage. Insulation resistance, collector-emitter reverse breakdown voltage V(BR)CEO, collector-emitter saturation voltage drop VCE(sat). In addition, parameters such as rise time, fall time, delay time and storage time need to be considered when transmitting digital signals.

The most important parameter is the current amplification coefficient transmission ratio CTR (Curremt-TrrasferRatio). Usually expressed by the direct current transfer ratio. When the output voltage remains constant, it is equal to the percentage of the DC output current IC to the DC input current IF. When the current amplification factor hFE of the receiving tube is a constant, it is equal to the ratio of the output current IC, usually expressed as a percentage.

[futuremarket]

Assessment of Optocoupler IC Market Share Trends over 2025 (SARS-CoV-2, Covid-19 Analysis)

Optocoupler IC Market Share

The optocoupler IC market 2020 is expected to earn remarkable revenue. Optocoupler IC uses light sensitive optical interface for transferring electrical signal between two isolated circuits. It is used in the applications in audio amplifiers, microphones, etc. It is the rising demand for smart home devices that can be accredited the growth of the optocoupler IC market in the upcoming years. The need for compact and energy efficient devices is presumed to lead the proliferation of the market in the foreseeable future. In addition, the governments are promoting miniaturization of electronic products to curb emissions. This trend is gaining popularity and is projected to accelerate revenue creation in the optocoupler IC market over the assessment period. It is anticipated to unleash growth opportunities for the players during the forecast period. 

Type Based Assessment

Several types of the product are available in the market. Each of these types serve different purpose. Recently, the high-speed optocoupler had gained much popularity. It is anticipated to witness large-scale sales over the next few years. New products are being developed and introduced which is projected to augment optocoupler IC market in the coming years. Other types of the product available in the market are as follows - high linearity optocouplers, logic output optocouplers, transistor output optocouplers, MOSFET output optocouplers, TRIAC & SCR output optocouplers, and others

End Use Analysis

Automotive, consumer electronics, aerospace and defense etc. are some of the industries that leverage the use of optocoupler ICs. Automotive industry is witnessing a drive if electrification which supports the future of the market on the industry. Industry leaders are emphasizing on the development of technologies that support high speed communication between applications. 

Competitive Tracking

Renesas Electronics Corporation (Japan), Semiconductor Components Industries LLC (US), Toshiba Corporation (Japan), Broadcom Inc (US), Lite-On Technology Inc (Taiwan), Vishay Intertechnology, Inc (US), Taiwan Semiconductor Mfg. Co. Ltd. (Taiwan), Infineon Technologies AG (Germany), Everlight Electronics Co., Ltd. (Taiwan), IXYS Corporation (US), Standex Electronics, Inc. (US), Phoenix Contact (Germany), Panasonic Corporation (Japan), Sharp Corporation (Japan), and TT Electronics (UK) are few of the key players operative in the global optocoupler IC market. These players are investing in latest technologies to support ongoing trends in electrical and electronics industry such as miniaturization. It is, in turn, expected to drive the expansion of the market in the foreseeable future. Presently the market landscape is characterized by the consolidation of semiconductor fabrication companies and electronic component manufacturers. New players are expected to join the existing players and intensify competition. Performance, reliability, and quality are some of the aspects that are focused on by key players to sustain the curve.

Geographical Analysis

North America is supposed to exercise dominance over the global optocoupler IC market. It's is the repaid technological advancements in this region which is expected to drive market growth in the foreseeable future. In addition, rising demand in the region for consumer electronics is supported by strong economic development. Countries such as the United States are expected to witness high demand for latest smartphones and other gadgets. These optocoupler IC market trends are supposed to propel expansion in the region in the upcoming years. The automotive industry has been witnessing electrification at a rapid pace. Its rising adoption in North America is expected to lead market augmentation over the forecast period. The companies based out of this region are increasing investments in the automotive industry. This is also prognosticated to support the expansion of the optocoupler IC market.

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[huimultd-solid-state-relays]

N1-§6 What is the Working Principle of Solid-State Relays?(1)

Because of the different application environments, solid-state relays have slightly different internal components, but the working principle is similar. The internal equivalent circuit diagram of ordinary solid-state relays is shown in the figure below (Figure 6.1). The principle of solid-state relays can be simply described as: for the NO-SSR, when the appropriate control signal is applied to the Input Terminal (IN) of the solid-state relay, the Output Terminal (OUT) will be switched from the off state to the on state; if the control signal is cancelled, the Output Terminal (OUT) will be restored to the off-state. In this process, the solid state relays realize non-contact control of switch states of the load power supply which is connected to output terminals. It should be noted that the input terminal can only be connected to the control signal, and the load should only be connected to the output circuit.

According to the type of load, SSR can be divided into two types: DC Solid State Relay (DC-SSR) and AC Solid State Relay (AC-SSR). The DC-SSRs act as a load switch on the DC power supplies, and the AC-SSRs act as a load switch on the AC power supplies. They are not compatible with each other and cannot be mixed.  1) DC solid state relay (Figure 6.1, Left), whose control signal voltage is inputted from the Input Terminal (IN), and then the control signal is coupled to the receiving circuit through the photocoupler, and eventually the signal is amplified by the amplifier to drive the switching state of the Transistor. Obviously, the Output Terminal (OUT) of the DC solid state relay is divided into Positive Terminal (+ pole) and Negative Terminal (- pole), be careful not to make mistakes when connecting the output terminal of DC SSR relay to the controlled circuit.  2) AC solid state relay (Figure 6.1, Right), is used to control the ON/OFF state of the AC load circuit. Unlike DC solid-state relays, the AC SSR relays use the bidirectional thyristor (Triac) or other AC electronic switching components. Therefore, there is no Positive/Negative Terminal in the Output Terminal (OUT) of the AC solid state relay.

The working principle of Zero-Crossing AC Solid-State Relays

Since zero-crossing AC solid state relays are completer and more typical than other types of solid state relays, the operation details of AC zero-crossing SSR relays can help illustrate the complete working principle of SSR relays:

1. The Function of Each Parts:

Following is the representation of the AC zero-crossing SSR (Figure 6.2). And the A~E circuit in the block diagram forms the body of the Zero-Crossing AC SSR. On the whole, the SSR relay is a four-terminal load switch, with only two input terminals (③ and ④) and two output terminals (①and ②). When the AC Zero-Crossing SSR relay is working, as long as a certain control signal is added to ③ and ④ terminals, the ON/OFF state of the loop that between the ① and ② terminals can be controlled.

The Coupling Circuit A is used to provide an I/O channel for the control device that connected to the ③ and ④ terminals, and electrically cut off the connection between the input terminals and output terminals of the SSR to prevent the output circuit from interfering with the input circuit. The most commonly used component in the coupling circuit is the optocoupler with high action sensitivity, high response speed, and high dielectric strength (withstand voltage) between the input and output terminals. Since the input load of the photo-coupler is a light emitting diode (LED), this makes the input value of the solid-state relay easy to match the input signal level of the control device, and make it possible to connect the input terminals of the SSR relays directly to the computer output interface, that is, the solid state relay can be controlled by the logic level of "1" and "0". The function of the Trigger Circuit B is to generate a suitable trigger signal to drive the Switching Circuit D to operate. However, if no special control circuit is added, the switching circuit will generate Radio Frequency Interference (RFI), which will pollute the grid by the higher harmonics and the spikes, so the Zero-Crossing Detector Circuit C is specifically designed to solve this problem. The Snubber Circuit E is designed to prevent spikes and surges from the power supply from causing impacts and disturbances (even malfunctions) to the switching transistors. Generally, an RC circuit (resistor–capacitor circuit, or RC filter or RC network) or a non-linear resistor (such as varistor) is used as the snubber circuit. The varistor, also called voltage-dependent resistor (VDR), is an electronic component whose resistance value varies nonlinearly with the applied voltage, and the most common type of varistor is the metal-oxide varistor (MOV), such zinc oxide nonlinear resistor (ZNR).

[tushardesale26-blog]

Global Optocouplers Market 2019 - Evolving Technology, Trends, Key Market segments and Industry Analysis

An optocouplers, also called opto-isolator, optical coupler, opto coupler, photocoupler or optocouplers, is a passive optical component that can combine or split transmission data (optical power) from optical fibers. It is an electronic device which is designed to transfer electrical signals by using light waves in order to provide coupling with electrical isolation between its input and output. The main purpose of an optocoupler is to prevent rapidly changing voltages or high voltages on one side of a circuit from distorting transmissions or damaging components on the other side of the circuit.

An optocoupler contains a light source often near an LED which converts electrical input signal into light, a closed optical channel and a photosensor, which detects incoming light and either modulates electric current flowing from an external power supply or generates electric energy directly. The sensor can either be a photoresistor, a silicon-controlled rectifier, a photodiode, a phototransistor or a triac.

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The market is driven by various end-user industries, such as Telecommunications, Cable TV, Military and Aerospace, Industrial Motors, Automotive and others (computers and office equipment, plasma displays).

The market for Optocouplers is fragmented with players such as Fairchild, Toshiba, Avago (FIT), Vishay Intertechnology, Renesas, Sharp, ISOCOM, LiteOn, Everlight Electronics, Standex-Meder, Electronics, IXYS Corporation, Kingbright Electronic, NTE Electronics, Plus Opto, etc. The industry is expected to remain innovation-led, with frequent acquisitions and strategic alliances adopted as the key strategies by the players to increase their industry presence. Meanwhile, optimize product mix and further develop value-added capabilities to maximize margins.

The unique characteristics of Optocouplers, together with their growing significance in multi-channel and bi-directional applications, are anticipated to boost sales. Manufacturers can take advantage of this situation by reinforcing their production units and supply-chains to avoid any delay in production turn-around-times (TAT) and supply-lead-times.

According to this study, over the next five years the Optocouplers market will register a 8.3% CAGR in terms of revenue, the global market size will reach US$ 4780 million by 2024, from US$ 2970 million in 2019. In particular, this report presents the global market share (sales and revenue) of key companies in Optocouplers business.

This report presents a comprehensive overview, market shares, and growth opportunities of Optocouplers market by product type, application, key manufacturers and key regions and countries.

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This study considers the Optocouplers value and volume generated from the sales of the following segments:

Segmentation by product type

Non-linear Optocouplers

Linear Optocouplers

Segmentation by application

Telecommunications

Cable TV

Military and Aerospace

Industrial Motors

Automotive

Others

This report also splits the market by region

Americas

APAC

Europe

Middle East & Africa

The report also presents the market competition landscape and a corresponding detailed analysis of the major vendor/manufacturers in the market.

The key manufacturers covered in this report

Fairchild, Toshiba, Avago (FIT), Vishay Intertechnology, Renesas, Sharp, ISOCOM, LiteOn, Everlight Electronics, Standex-Meder Electronics, IXYS Corporation, Kingbright Electronic, NTE Electronics, Plus Opto….

In addition, this report discusses the key drivers influencing market growth, opportunities, the challenges and the risks faced by key manufacturers and the market as a whole. It also analyzes key emerging trends and their impact on present and future development.

Research objectives

To study and analyze the global Optocouplers consumption (value & volume) by key regions/countries, product type and application, history data from 2014 to 2018, and forecast to 2024.

To understand the structure of Optocouplers market by identifying its various subsegments.

Focuses on the key global Optocouplers manufacturers, to define, describe and analyze the sales volume, value, market share, market competition landscape, SWOT analysis and development plans in next few years.

To analyze the Optocouplers with respect to individual growth trends, future prospects, and their contribution to the total market.

To share detailed information about the key factors influencing the growth of the market (growth potential, opportunities, drivers, industry-specific challenges and risks).

To project the consumption of Optocouplers submarkets, with respect to key regions (along with their respective key countries).

To analyze competitive developments such as expansions, agreements, new product launches, and acquisitions in the market.

To strategically profile the key players and comprehensively analyze their growth strategies.

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[chetanare]

Non-linear Optocouplers Market Overview 2020-2026

Non-linear Optocouplers Market Overview 2020-2026

“Non-linear Optocouplers Market Research: Global Status & Forecast by Geography, Type & Application (2016-2026)” the new research report adds in kandjmarketresearch.com research reports database. This Research Report spread across 58 Pages, with summarizing Top companies and supports with tables and figures.

The global study on Non-linear Optocouplers market sums up area wise market…

[radiantinsightssf-blog]

Linear Optocouplers Market to Set Phenomenal Growth in Key Regions by 2025

This report studies the global Linear Optocouplers market status and forecast, categorizes the global Linear Optocouplers market size (value & volume) by manufacturers, type, application, and region. This report focuses on the top manufacturers in United States, Europe, China, Japan, South Korea and Taiwan and other regions.

The global Linear Optocouplers market is valued at million US$ in 2017 and will reach million US$ by the end of 2025, growing at a CAGR of during 2018-2025.

The major manufacturers covered in this report

Fairchild

Toshiba

Avago (FIT)

Vishay Intertechnology

Renesas

Sharp

ISOCOM

LiteOn

Everlight Electronics

Standex-Meder Electronics

IXYS Corporation

Kingbright Electronic

NTE Electronics

Plus Opto

Geographically, this report studies the top producers and consumers, focuses on product capacity, production, value, consumption, market share and growth opportunity in these key regions, covering

United States

EU

China

Japan

South Korea

Taiwan

We can also provide the customized separate regional or country-level reports, for the following regions:

North America

United States

Canada

Mexico

Asia-Pacific

China

India

Japan

South Korea

Australia

Indonesia

Singapore

Rest of Asia-Pacific

Europe

Germany

France

UK

Italy

Spain

Russia

Rest of Europe

Central & South America

Brazil

Argentina

Rest of South America

Middle East & Africa

Saudi Arabia

Turkey

Rest of Middle East & Africa

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On the basis of product, this report displays the production, revenue, price, market share and growth rate of each type, primarily split into

Photovoltaic-Output

Transistor-Output

Triac-Output

Thyristor-Output

IC- Output

Others

On the basis of the end users/applications, this report focuses on the status and outlook for major applications/end users, consumption (sales), market share and growth rate for each application, including

Telecommunications

Cable TV

Military and Aerospace

Industrial Motors

Automotive

Others

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