4N35-V

Mounting Type:	Through Hole
Package / Case:	6-DIP (0.300", 7.62mm)
Supplier Device Package:	6-DIP
Series:	--
Packaging:	Tube
Part Status:	Active
Number of Channels:	1
Voltage - Isolation:	5000Vrms
Current Transfer Ratio (Min):	100% @ 10mA
Current Transfer Ratio (Max):	--
Turn On / Turn Off Time (Typ):	10µs, 9µs
Rise / Fall Time (Typ):	--
Input Type:	DC
Output Type:	Transistor with Base
Voltage - Output (Max):	80V
Current - Output / Channel:	--
Voltage - Forward (Vf) (Typ):	1.2V
Current - DC Forward (If) (Max):	60mA
Vce Saturation (Max):	300mV
Operating Temperature:	-55°C ~ 110°C

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Introduction

The 4N35-V optoisolator is an optoelectronic device designed with a photo transistor output. It is a proven solution for providing electrical isolation between two circuits and is great for operations that are critical to product safety. In this article, we will be discussing the 4N35-V application field and its working principle.

Application Field

The 4N35-V optoisolators are commonly used in numerous applications and is typically employed in embedded systems, communication systems, automotive electronics, test & measurement, and instrumentation, among others. Its strong electrical isolation features make it suitable in multiple noisy and sensitive environments. Additionally, it shows an impressive performance and reliable accuracy in demanding operational conditions which require extreme temperatures and voltages. Moreover, the 4N35 provides maximum noise immunity in circuits through the electrical and optical isolation between input and output. This makes it ideal for use in medical equipment, mobile devices, and automotive applications because they need to be as safe as possible. A common application of this optoisolator is input/output isolation, switch isolation, circuit protection, and fault detection.

Working Principle

The 4N35-V is composed of an infrared LED and a transistor output, connected through an optical device. This enables the device to transmit signals up to 5000 volts with high accuracy. When the LED is illuminated, it emits light that is read by the output transistor. The transistor then acts as an isolation barrier between the two circuits. This process is known as opto-coupling or optical isolation. The electrical isolation is created by the infrared LED which generates current when current is passed through it. This produces an output voltage, which is then converted into an electrical signal that is transmitted to the output transistor. There are two types of output transistors available in the 4N35-V, namely, photovoltaic and photocurrent. Depending on the application and requirements, either of these types can be used.

Conclusion

The 4N35-V is a versatile optoisolator, perfect for a wide range of applications. It is known for its precision and accuracy, along with its ability to provide up to 5000 volts of electrical isolation. It works by using an infrared LED and output transistor, which convert current into light energy and read transmitted signals respectively. This optoisolator is suitable for medical, automotive, and communications applications, with its two output transistors making it suitable for both photovoltaic and photocurrent settings.

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