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, Hyderabad.



Cosmo ( Photo Couplers )
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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.





Cosmo ( Photo Couplers )

Cosmo ( Photo Couplers )

Cosmo ( Photo Couplers )

Cosmo ( Photo Couplers )


COSMO REED RELAY

cosmo-electronics-d1a05000

D1A05000
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cosmo-electronics-d1c05000

D1C05000
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cosmo-electronics-d2a05000.jpg

D2A05000
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COSMO SSR

cosmo-KSD203AC2

KSD203AC2
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cosmo-KSD203DC2

KSD203DC2
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cosmo-KSD205AC3

KSD205AC3
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cosmo-KSD225AC8

KSD225AC8
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cosmo-KSD440AC8

KSD440AC8
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PHOTO COUPLER MINI - FLAT

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.


Product introduction

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.

When a current is applied to the LED , it emits light.
The emitted light strikes the phototransistor or photosensitive diode (output side).
The light energy causes the phototransistor to conduct or the photosensitive diode to produce a current.
This current or change in resistance on the output side can be detected by the receiving circuit.

Applications
  • 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)
Photo Coupler Mini-Flat 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 Photo Coupler Mini-Flat 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 Photo Coupler Mini-Flat 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 Photo Coupler Mini-Flat 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 Photo Coupler Mini-Flat 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

Advantages
  • 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.

In an overview, photocouplers provide a means to transfer signals and data between isolated circuits, offering electrical separation while maintaining communication. They find use in a wide range of applications where electrical isolation and signal transmission are crucial.


OPTIC PHOTO COUPLER

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 Optic Photo Coupler 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 Optic Photo Coupler 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


OPTO ISOLATORS TRIAC


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
Opto Isolators Triac 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
Opto Isolators Triac 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


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SSR 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.

Product introduction

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.


The working of the relay effect transistor can be explained briefly as below:
  • 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.
  • 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.
  • 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.
customised-parts

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These SSR MOSFET output are used mainly to control the switch of output pole connection, which provides normally open 1A, normally close 1B, 2A,2B, normally open and normally close 1C and 1 photo coupler+1 MOS connectors. The various types of SSR MOSFET output we offer are

  • Normal Close Type
  • Normal Open / low Current & ON Resistance Type
  • Normal Close + Normal Open Type
  • Normal Open Type

The salient features are as follow :

  • High voltage
  • Low impedance
  • Compact package
  • Ant vibration contactor-less or multiple connector combination and quick response to high frequency


A couple of advantages can be listed as below:
  • Solid State Relays with MOSFET outputs are known for their fast switching speed.
  • Low power consumption and durability because they lack mechanical components.
  • They are commonly used in applications where high frequency switching is required.
  • They offer advantages over traditional electromechanical relays including longer lifespan and faster switching times.

The various types of SSR MOSFET output offered at Kura Electronics include:
  • Normal Close Type.
  • Normal Open / low Current and ON Resistance Type.
  • Normal Close + Normal Open Type.
  • Normal Open Type.


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REED RELAYS

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.


Product introduction

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 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.
REED RELAYS

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Our reed relays are a mechanical switch operation which controls output pole connection. The contactors may include 1A, 1B, 1C, 2A, or 2C. The main features are as follow :

  • Integrated mounting packing
  • Compact resistant to high voltage
  • Long usable life and high isolation

The areas where these can be applied are computer peripheral, telecom, instrument, security and automation equipment. The various types we offer are as follow :

  • D Type
  • M Type
  • CG Type
  • DH Type
  • S Type
  • SS Type
  • G Type
  • VH Type
  • V Type
  • C Type
  • F Type


Applications
  • 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.


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PHOTO INTERRUPTER

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.


Product introduction

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.

Components
  • Emitter : This component emits a light beam, usually in the form of infrared light.
  • 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.
  • Types (There are two common types of photo interrupters):
    1. Transmissive: In this type, the emitter and detector are placed facing each other with a gap between them. When an object enters this gap and interrupts the light beam, the detector registers the interruption.
    2. Reflective: Here, the emitter and detector are positioned adjacent to each other, with the light beam reflecting off a surface. When an object enters the reflection area and obstructs the light, the detector detects the change.
PHOTO INTERRUPTER

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We offer KW Series photo interrupter which consists of a high radiant power GaAs infrared LED and a Si photo transistor. This photo interrupter is housed in a short lead package and is ideal for automatic mounting. The specifications are as follow :

Model Number
Detecting
and emitting gap
(mm)
Slite width or resolution
(mm)
If
(mA)
Vceo
(V)
Ic
(mA)
Vf max
(V)
CTR%
CTR%
Response time
Response
time
KW1S50FC
4.2
0.5
50
35
20
1.4
0.5~5
IF=20mA Vce=5Vtf
(typ.)=3us tf(typ.)=4usIc
usIcmAVcemA Vce=2V RL=100£[


Benefits
  • 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

Considerations

When using a photo interrupter, factors like ambient light, distance between the emitter and detector and the type of object being sensed should be considered to ensure reliable operation. Photo interrupters are vital components in automation and many industrial processes, enhancing efficiency, safety and precision in various applications.