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Cosmo Photo Couplers & Optocouplers – Authorised Dealer in Pune
Total electronic isolation, including potential isolation, in an electrical circuit
Cosmo Optocouplers for Electrical Isolation Between Circuits
Cosmo ( Photo Couplers ) — We are Manufacturer, Supplier and Exporter of our product range. Our setup is situated in Pune, Maharashtra, India and majorly we serve our customers from all over India including metro cities like Pune, Mumbai, Bangalore, Chennai, Delhi and Hyderabad.
The basic function of a Photo Coupler is that it ensures total electronic isolation, including potential isolation (as in the case of transformer) in an electrical circuit. It comprises of Photo Transistor and Photo Darlington.
At Kura Electronics, we strive to be a key contributor in the industry for supplying best quality electronic photo couplers and associated products. The achievements of Kura Electronics are attributed to our unwavering commitment to customer satisfaction, made possible by our selective product portfolio. This approach empowers us to provide unparalleled proficiency combined with extensive product knowledge, focusing on electromechanical and interconnect components. We offer innovative supply chain solutions tailored to your specific needs. We are well equipped to address challenging supply related issues. We strive to enhance the uniformity of materials and processes in the supply of electronic goods, with a commitment to ensure customer satisfaction.
A photocoupler is an electronic component that combines light sensitive and light emitting elements to provide power isolation between two circuits. It is often used to transmit signals or data between two parts of an current system while maintaining voltage isolation which means there is no direct wired connection between the input and output sides. A typical photocoupler consists of an light emitting diode on the input side and a phototransistor or a photosensitive diode on the output side. The two sides are physically separated by a transparent package that allows light to pass through but prevents direct electrical contact.
Cosmo Photo Coupler Models
Applications of Cosmo Photo Couplers
Signal Isolation
Photocouplers are widely used to provide electrical isolation between sensitive control circuits and high power . This helps protect the sensitive components from voltage spikes, noise and other disturbances.
Voltage Level Translation
They can also be used to translate voltage levels between different parts of a circuit, especially when the voltage levels are incompatible.
Feedback Circuits
In some cases, photocouplers are used in feedback circuits where the output of a circuit is monitored and used to control the input to maintain certain conditions.
Switching Applications
Photocouplers can be used to control the switching of transistors, thyristors or other electronic components in high voltage applications.
Data Transmission
In digital communication systems, they can be used to transmit data between isolated systems without the risk of electronic interference.
Safety Circuits
Photocouplers are often utilized in safety related applications such as detecting faults in high voltage equipment and controlling machinery where isolation is necessary to prevent power shocks to operators.
| Model No. | Internal Connection Diagram | Feature | Safety standards approval | Package | Absolute Maximum Ratings | Electrical Characteristics | ||||||||
| Forward
Current IF (mA) |
Isolation Voltage (AC) Viso (vrms) |
Collector- Emitter Voltage VCEO (V) |
Current
Transfer Ratio |
Response Time | ||||||||||
| UL | VDE 0884 |
TUV | Others | CTR (%) MIN |
IF (mA) |
tr (us) TYP. |
RL (£[) |
|||||||
| KPC353T (Cease Production) |
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With base
terminal. High isolation voltage. Opaque type, mini-flat package. |
O | - | O | *2 | 5-pin Mini-Flat |
50 | 3750 | 60 | 60 | 5 | 5 | 100 |
| KPC354NT | ![]() |
AC input. High isolation voltage. Opaque type, mini-flat package. Subminiature type. | O | - | O | *2 | 4-pin Mini-Flat |
50 | 3750 | 60 | 20 | 1 | 4 | 100 |
| KPC355NT | ![]() |
High
current transfer ratio. High isolation voltage. Opaque type, mini-flat package. Subminiature type. |
O | - | - | - | 4-pin Mini-Flat |
50 | 3750 | 35 | 600 | 1 | 60 | 100 |
| KPC357NT | ![]() |
High
isolation voltage. Opaque type, mini-flat package. Subminiature type. |
O | - | O | *2 | 4-pin Mini-Flat |
50 | 3750 | 60 | 50 | 5 | 5 | 100 |
| KPC452 | ![]() |
High
current transfer ratio. High isolation voltage. Opaque type, mini-flat package. High collector-emitter voltage. |
O | - | O | *2 | 4-pin Mini-Flat |
50 | 3750 | 300 | 1000 | 1 | 100 | 100 |
Electrical Isolation
The primary advantage of photocouplers is the electrical isolation they provide which can prevent cross talk, noise and protect sensitive components.
Compact Size
They come in small packages, making them suitable for applications with limited space.
Reliability
Photocouplers are known for their reliability and long operational life.
Cosmo Optic Photo Couplers – Model Specifications
| Model No. | Internal Connection Diagram | Feature | Safety standards approval | Package | Absolute Maximum Ratings | Electrical Characteristics | ||||||||
| Forward
Current IF (mA) |
Isolation Voltage (AC) Viso (vrms) |
Collector- Emitter Voltage VCEO (V) |
Current
Transfer
Ratio |
Response Time | ||||||||||
| UL | VDE 0884 |
TUV | Others | CTR (%) MIN. |
IF (mA) |
tr (us) TYP. |
RL (£[) |
|||||||
| KP7010 | ![]() |
High sensitivity. TTL and LSTTL compatible output. High isolation voltage. Low output current dissipation. It is normal-on operation | - | - | - | - | 6-pin DIP SMD H |
10 | 5000 | 17 | - | - | 0.1 | 280 |
| KP7110 | ![]() |
High
sensitivity. TTL and LSTTL compatible output. High isolation voltage. Low output current dissipation. It is normal-on operation |
- | - | - | - | 6-pin DIP SMD H |
50 | 5000 | 17 | - | - | 0.1 | 280 |
Cosmo Opto Isolators with Triac Output
| Model No. | Internal Connection Diagram | Feature | Safety standards approval | Package | Absolute Maximum Ratings | Electrical Characteristics | ||||||||
| Forward
Current IF (mA) |
Isolation Voltage (AC) Viso (vrms) |
Collector- Emitter Voltage VCEO (V) |
Current Transfer Ratio | Response Time | ||||||||||
| UL | VDE 0884 | TUV | Others | CTR (%) MIN. |
IF (mA) |
tr (us) TYP. |
RL (£[) |
|||||||
| KMOC 3022 |
![]() |
Solenoid/Valve
controls. Light controls. Static power switches. AC Motor starters. Temperature controls. E.M. contactors. AC Motor drives. Solid state relays. |
0 | - | 0 | *2 | 6-pin DIP SMD H |
50 | 5000 | 400 | 10 | 3 | 3 | 100 |
| KMOC 3063 |
![]() |
Solenoid/Valve
controls. Light controls. Static power switches. AC Motor starters. Temperature controls. E.M. contactors. AC Motor drives. Solid state relays. |
- | - | - | *4 | 6-pin DIP SMD H |
50 | 5000 | 600 | 5 | 3 | 3 | 100 |
Cosmo SSR with MOSFET Output
Kura Electronics has emerged as a prominent player in trading of electronic products. Our core mission revolves around delivering unique, innovative, cost efficient products and robust automation solutions to meet the needs of our valued customers. Furthermore, we have ensured that our products are competitively priced, making them accessible to a wide range of customers. We take the utmost care in packaging our products using durable materials to guarantee their safe transit. Our proficient team of logistics experts ensures timely delivery of products. Our advanced infrastructure plays a pivotal role in maintaining the high quality of our product range.
SSR (Solid State Relay) MOSFET output refers to the output stage of a solid state relay that uses MOSFET (Metal Oxide Semiconductor Field Effect Transistor) technology to switch electrical loads. Solid state relays are electronic switches that do not have moving parts and use semiconductor devices like MOSFETs, to control the flow of current from the input control signal to the output without physical contact. The primary application of these SSR MOSFET output devices is to regulate the switching of the output pole connection.
How an SSR MOSFET Output Works
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Input Stage : The input stage of the solid state relay is where you provide a control signal, typically a low voltage direct current signal, to the relay. When this control signal is applied, it activates the internal circuitry of the solid state relay.
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Output Stage (MOSFET) : The output stage of an solid relay with a MOSFET output uses one or more MOSFETs as the switching element. MOSFETs are semiconductor devices that can efficiently switch high power loads such as alternating current and direct current loads using a low power control signal. When the control signal is activated, the MOSFET in the SSR allows current to flow through the load connected to its output terminals.
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Isolation : These type of relays often include opto isolation between the input and output stages. This means that there is an optical barrier ,usually an LED on the input side and a phototransistor on the output side that provides electrical isolation, preventing the control signal from directly affecting the load. This isolation adds an extra layer of safety and protection.
Advantages of SSR MOSFET Output
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Solid State Relays with MOSFET outputs are known for their fast switching speed.
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Low power consumption and durability because they lack mechanical components.
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They are commonly used in applications where high frequency switching is required.
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They offer advantages over traditional electromechanical relays including longer lifespan and faster switching times.
Types of SSR MOSFET Output
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Normal Close Type.
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LNormal Open / low Current and ON Resistance Type.
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Normal Close + Normal Open Type.
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Normal Open Type.
Cosmo Reed Relays for Fast, Sealed Switching
At Kura Electronics, our commitment is to become a leading supplier of products related to safeguarding, regulating and managing power. Our products are designed to enhance safety, efficiency and convenience across various industrial sectors including automotive, industrial and heavy vehicles. Our strong reputation in the industry for delivering high quality products is an affirmation that our staff is determined and ready for hard work. To attract and retain customers, we design clear business policies through which our valued customers are benefitted.
Reed relays are compact and reliable digital components that play a crucial role in numerous industries and technologies by providing efficient and precise switching capabilities. These relays comprise a hermetically sealed glass tube housing two closely positioned flexible metal reeds. The operation of reed relays is based on the interaction of these reeds, offering a reliable method for controlling electrical currents in a wide range of applications. Key components of reed relays include the reed switch, the coil and the contact terminals. The heart of the relay is the reed switch which consists of two metal reeds enclosed in a sealed glass envelope. These reeds respond to magnetic fields, moving closer together when exposed to such fields to complete an electrical circuit. The coil, wound around the reed switch, generates the necessary magnetic field.
Advantages of Cosmo Reed Relays
Swift Switching
Reed relays excel at rapid switching, making them well-suited for applications requiring quick response times.
Minimal Contact Resistance
Reed relays have contacts with low resistance, ensuring minimal signal loss.
Extended Lifespan
The absence of moving parts in the switching mechanism contributes to a long operational life, even in challenging environments.
Compact Design
Their small size enables the use of reed relays in space constrained applications.
Low Power Consumption
Reed relays consume minimal power, making them energy efficient.
High Insulation Resistance
The sealed glass envelope provides excellent insulation between contacts, reducing leakage and enhancing reliability.
Applications of Cosmo Reed Relays
Telecommunications
Reed relays are employed in telecom equipment to switch signals such as in telephone exchanges and communication systems.
Automotive
They play a vital role in controlling various functions, including safety systems and sensors.
Test and Measurement
The rapid switching speed of the reed relays and precision, make them ideal for test equipment and measurement devices.
Medical Equipment
They are used in medical devices including diagnostic equipment and imaging systems.
Industrial Automation
Reed relays are employed in programmable logic controllers and various machinery.
Evolving Trends
As technology advances, reed relays continue to adapt and evolve.
Surface Mount Technology
Surface mount reed relays are designed for printed circuit board assembly, offering ease of integration and reduced assembly costs.
High Density Arrays
Compact reed relays are being developed in high density arrays, enabling more complex circuit designs.
Advanced Sealing Techniques
Improved sealing techniques enhance the durability of reed relays in challenging environments.
Cosmo Photo Interrupters
Kura Electronics aspires to be a premier source of electronics solutions . Our expertise lies in the supplying of an extensive array of electronic products. From our end, we offer a diverse range of sensors, controllers, connectivity solutions and more. These products have gained the trust of techinicians across a multitude of industrial applications, with our technology seamlessly integrating into everyday automated devices. Through our commitment to deliver exceptional relays and other associated products ,we aim to fulfill our mission of enhancing human life quality by introducing innovative products in the field of electronic switches and relays.
A photo interrupter is an electronic device used to detect the interruption of a light beam by an object or obstruction. It consists of an emitter and a detector, and it finds application in various fields due to its ability to provide non contact detection, precise sensing and reliability. At Kura Electronics, our product lineup includes the KW Series photo interrupter. This device comprises a high radiant power Gas infrared LED along with a Si photo transistor. Housed in a compact short lead package, this photo interrupter is perfectly suited for seamless automated installation.
Photo Interrupter Components
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Emitter : This component emits a light beam, usually in the form of infrared light.
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Detector : The detector which is positioned opposite the emitter, senses the light beam. When the beam is uninterrupted, the detector receives the emitted light.
The photo interrupter works based on the interruption of the light beam. When an object passes between the emitter and the detector, it blocks the light, causing the detector's light reception to change. This change is then converted into an electrical signal, indicating the presence or absence of an object.
Benefits of Photo Interrupters
Non Contact Sensing
Photo interrupters offer non-contact detection, eliminating mechanical wear and tear.
Precision
They provide accurate sensing and are capable of detecting small objects.
Versatility
Suitable for various materials, shapes, and surfaces.
Speed
They can detect objects at high speeds, making them valuable in fast-moving applications
FAQs
Cosmo Photo Couplers – FAQs
01What is a photo coupler (optocoupler)?
It uses an LED and a light sensor to pass signals between two circuits while keeping them electrically isolated.
02Where are photo couplers used?
They are used for signal isolation, voltage level translation, feedback circuits, data transmission and safety circuits.
03Which Cosmo products do you stock?
We stock Cosmo photo couplers, opto isolators, reed relays, KSD series SSRs, MOSFET output SSRs and photo interrupters.
04What is a photo interrupter?
It has an emitter and a detector facing each other, and senses objects without contact when the light beam is blocked.
05Where can I buy Cosmo photo couplers in Pune?
Kura Electronics is an authorised Cosmo dealer in Shukrawar Peth, Pune, and supplies across India.
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