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4N25 Datasheet, PDF

Search Partnumber : Match&Start with "4N25" - Total : 141 ( 1/8 Page)

Manufacturer	Part #	Datasheet	Description
Rohm	4N25	614Kb/15P	GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
AVAGO TECHNOLOGIES LIMI...	4N25	228Kb/7P	Phototransistor Optocoupler General Purpose Type
Vishay Siliconix	4N25	147Kb/9P	Optocoupler, Phototransistor Output, With Base Connection 26-Jan-05
Texas Instruments	4N25	151Kb/4P	COMPATIBLE WITH STANDARD TTL INTEGRATED CIRCUITS
Infineon Technologies A...	4N25	408Kb/6P	Industry Standard Single Channel 6 Pin DIP Optocoupler March 27, 2000-00
Fairchild Semiconductor	4N25	210Kb/15P	GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
Fairchild Semiconductor	4N25	608Kb/15P	GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
Lite-On Technology Corp...	4N25	757Kb/5P	GENERAL PURPOSE TYPE PHOTOCOUPLER
QT Optoelectronics	4N25	610Kb/5P	GAAS INFRARED EMITTING DIODE
ISOCOM COMPONENTS	4N25	55Kb/3P	OPTICALLY COUPLED ISOLATOR PHOTOTRANSISTOR OUTPUT
Everlight Electronics C...	4N25	364Kb/13P	6 PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics C...	4N25	394Kb/13P	6 PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
Toshiba Semiconductor	4N25	324Kb/6P	PHOTO TRANSISTOR (AC LINE/DIGITAL LOGIC ISOLATOR)
New Jersey Semi-Conduct...	4N25	101Kb/1P	Optically-Coupled Isolator Optoelectronic Products
Everlight Electronics C...	4N25	878Kb/13P	6 PIN DIP PHOTOTRANSISTOR
Fairchild Semiconductor	4N25	215Kb/15P	GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
	4N25	215Kb/15P	GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
	4N25	215Kb/15P	GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
Motorola, Inc	4N25	280Kb/6P	6-Pin DIP Optoisolators Transistor Output
Fairchild Semiconductor	4N25	215Kb/15P	GENERAL PURPOSE 6-PIN PHOTOTRANSISTOR OPTOCOUPLERS

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Brief Description of 4N25

The 4N25 is an optocoupler, also known as an opto-isolator, which is a component that provides electrical isolation between its input and output through optical means. The 4N25 consists of a light-emitting diode (LED) optically coupled to a phototransistor. Here are some key features and specifications of the 4N25:

Optical Isolation: The primary function of the 4N25 is to provide electrical isolation between the input (LED side) and output (phototransistor side). This isolation helps prevent electrical interference and provides safety in applications where different voltage levels are involved.

Phototransistor Output: The output side of the 4N25 contains a phototransistor, which is activated by the light emitted from the LED. The phototransistor acts as a switch, providing an output that is controlled by the input.

Input Current: The 4N25 requires a forward current through its LED to activate the optocoupler. The LED current is typically in the range of a few milliamperes.

Collector-Emitter Voltage (Vce): This parameter specifies the maximum voltage that can be applied across the collector and emitter of the phototransistor.

Isolation Voltage: The component is designed to withstand a specified isolation voltage between the input and output sides. This is crucial for safety and preventing electrical shock hazards.

Package: The 4N25 is available in various packages, including DIP (Dual In-line Package) and surface-mount packages, providing flexibility for different applications.

Applications: Common applications include interfacing microcontrollers or low-voltage digital circuits with high-voltage or noisy environments, such as in power supply feedback, motor control, and communication interfaces.

Current Transfer Ratio (CTR): CTR is a key parameter that defines the ratio of output collector current to input LED current. It indicates the efficiency of the optical coupling.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.

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