TD815 Darliangton Transistor Optocoupler Belong toDIP 4 Darliangton Transistor Optocoupler
The TD815 series combine an AlGaAs infrared emitting diode as the emitter which is...
Darlington Transistor Optocoupler
Your Professional Darlington Transistor Optocoupler Supplier
Our goal is to become your true partner in the field of Darlington transistor optocoupler China. Royalighting Technology Co.,Ltd is a company that integrates R&D, and sales of semiconductors. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
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SOP 4 DarlingtonTD355 is a direct current input, Darlington transistor couplerblongto SOP4 Darlington Transistorread more
The TD355 series combine an AlGaAs infrared emitting diode as the emitter which is optically... -
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SOP 4 DarlingtonTransistorTD352 SOP 4 Darliangton Transistor Optocoupler belong to SOP 4 Darliangton Transistorread more
The TD352 series combine an AlGaAs infrared emitting diode as the emitter which is opticallycoupled to...
Why Choose Us
Our certifications: We have obtained certifications such as ROHS, Reach, VDE, CQC, UL, IATF16949, ISO9001, ISO14001, and ISO45001.
Production equipment: We have advanced production equipment, including die bonders, wire bonders, vending machines, plasma cleaners, molding machines, and high-voltage measuring machines.
Our factory: We have over 25,000 square meters of factory space in Fujian and over 20,000 square meters of ultra-clean, anti-static, modern dust-free workshops.
Our services: In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.
Advantages of Darlington Transistor Optocoupler
High current gain
One of the main advantages of darlington transistors is their high current gain. The overall gain is the product of the gains of the two individual transistors, which makes darlington pairs ideal for applications requiring significant current amplification.
Low input current requirement
Due to the high current gain, the input current required to drive the darlington transistor is minimal, making it suitable for low-power control circuits.
Simplified circuit design
Using a darlington transistor can simplify circuit design by reducing the need for additional components to achieve the desired current gain.
Specification of Darlington Transistor Optocoupler
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ABSOLUTE MAXIMUM RATINGS |
||||
|
PARAMETER |
SYMBOL |
VALUE |
UNIT |
NOTE |
|
INPUT |
||||
|
Forward Current |
IF |
60 |
MA |
|
|
Peak Forward Current |
IFP |
1 |
A |
1 |
|
Reverse Voltage |
VR |
6 |
V |
|
|
Input Power Dissipation |
PI |
100 |
MW |
|
|
OUTPUT |
||||
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Collector - Emitter Voltage |
VCEO |
40 |
V |
|
|
Emitter - Collector Volt |
VECO |
6 |
V |
|
|
Collector Current |
IC |
80 |
MA |
|
|
Output Power Dissipation |
PO |
150 |
MW |
|
|
COMMON |
||||
|
Total Power Dissipation |
Ptot |
200 |
MW |
|
|
Isolation Voltage |
Viso |
5000 |
Vrms |
2 |
|
Operating Temperature |
Topr |
-55~110 |
°C |
|
|
Storage Temperature |
Tstg |
-55~125 |
°C |
|
|
Soldering Temperature |
Tsol |
260 |
°C |
|
Key Features of Darlington Transistor Optocoupler
High isolation voltage
Typically up to several thousand volts, ensuring effective isolation between input and output circuits.
Fast response time
Suitable for high-speed signal transmission.
Wide working temperature range
Capable of stable operation within a wide temperature range.
High reliability
Due to its simple structure and non-contact signal transmission method, PC815 optocoupler has a long service life and high reliability
Application Of Darlington Transistor Optocoupler
01/
Power amplifiers: In audio and other signal amplification circuits, darlington transistors are used to boost weak signals to drive speakers or other output devices.
02/
Switching circuits: They are used in switching applications, such as controlling motors, relays, and lamps, where a small input signal can control a larger load.
03/
Regulators and voltage control circuits: Darlington transistors are also employed in voltage regulation circuits, where stable output voltage is crucial.
04/
Darlington arrays: Integrated darlington arrays, like the uln2003, are used to drive multiple loads from a single control signal, often found in microcontroller interfacing.
Components of Darlington Transistor Optocoupler
Darlington pair phototransistor: This is a pair of transistors connected in a darlington configuration, where the output of the first transistor acts as the input for the second, providing high current gain. The phototransistor detects the light from the LED and allows current to flow in the output circuit.
Optical bubble/channel: A transparent area that allows light to pass efficiently from the LED to the phototransistor.
Epoxy resin/resin: Provides mechanical support, seals the inner components, and adds additional insulation.
Terminals: Connect the optocoupler to external circuits.
Packing and Shipping of Darlington Transistor Optocoupler
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Packing |
Box |
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Shipping |
Shipped by road, sea, rail |
FAQ
As one of the leading darlington transistor optocoupler suppliers in China, we warmly welcome you to buy discount darlington transistor optocoupler from our factory. All customized products are with high quality and competitive price. For quotation and free sample, contact us now.
DIP 4 DarlingtonTransistor, for LTV 355T, for EL815