4N26S(TB)-V

Output Type:	Transistor with Base
Supplier Device Package:	6-DIP SMD
Package / Case:	6-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 110°C
Vce Saturation (Max):	500mV
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.2V
Current - Output / Channel:	--
Voltage - Output (Max):	80V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	--
Turn On / Turn Off Time (Typ):	3µs, 3µs
Current Transfer Ratio (Max):	--
Current Transfer Ratio (Min):	20% @ 10mA
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Overview

Optoisolators - Transistor, Photovoltaic Output is one of the main types of optoisolator that have been used in electrical engineering for many years. The 4N26S(TB)-V optoisolator is a classic example of such a device. This article will discuss the application field and working principle of a 4N26S(TB)-V optoisolator.

Application Field

Optoisolators are typically used for two main applications. The first is to provide electrical isolation between low voltage circuits, such as computers, and higher voltage circuits, such as televisions. This allows the circuit to operate safely without the risk of high voltages affecting the operation of the computer or vice versa.The second application is to provide signal transmission between high impedance and low impedance circuits by converting electrical signals into optical signals. This ensures that a high impedance signal is transmitted without any distortion or loss, and also provides a degree of electrical isolation between the circuits. The 4N26S(TB)-V optoisolator excels at this application thanks to its superior response speed and low propagation delay.

Working Principle

The 4N26S(TB)-V optoisolator is an isolated device that consists of two separate parts, an input circuit and an output circuit. The input circuit consists of a photovoltaic cell which produces an electrical current in response to light or infrared radiation. This current is then amplified by a transistor connected to the photovoltaic cell.The output circuit is then connected to the input circuit via a conductive path. When light or infrared radiation is detected by the photovoltaic cell, the transistor amplifies the current and a voltage is generated in the output circuit. This voltage will then trigger an output signal, such as a switch, relay, or another device.

Conclusion

The 4N26S(TB)-V optoisolator is a classic example of optoisolator technology. It is used in many applications where electrical isolation and signal transmission between high impedance and low impedance circuits is required. Its working principle is based on the use of a photovoltaic cell, a transistor, and a conductive path to provide electrical isolation and signal transmission between different devices.

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