4N26S(TA)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Number of Channels:	1
Voltage - Isolation:	5000Vrms
Current Transfer Ratio (Min):	20% @ 10mA
Current Transfer Ratio (Max):	--
Turn On / Turn Off Time (Typ):	3µs, 3µs
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):	500mV
Operating Temperature:	-55°C ~ 110°C
Mounting Type:	Surface Mount
Package / Case:	6-SMD, Gull Wing
Supplier Device Package:	6-SMD

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<h2>Optoisolators - Transistor, Photovoltaic Output</h2><p>4N26S (TA) is a type of optoisolator. Optoisolators, also known as optocouplers, are devices that use light to transfer electrical signals from one circuit to another, while keeping the circuits electrically isolated from each other. The optoisolator interactively couples light current and electrical current by use of a solid-state light-emitting diode (LED) and a phototransistor. Together they act as a signal amplifier that transfers information from one isolated circuit to another circuit. 4N26S are particularly suited for use in controlling and monitoring applications where long transmission lines, high-temperature, and bright ambient light conditions are present.</p><h3>Applications</h3><p>4N26S optoisolators are designed for numerous applications, including power controllers, switching controls, industrial controllers, communications, networking, automotive, and consumer electronics. The 4N26S is designed to help a designer create isolated systems or to protect digital systems from adverse environmental conditions, such as blackouts, short circuits, noise, and power surges. The 4N26S optoisolator is also used in robotics and motion control applications as a way to improve safety, performance, and reliability.</p><h3>Working Principle</h3><p>4N26S optoisolators operate on the principle of converting currents to light signals that are then transmitted as electrical signals. The core component of an optoisolator is a light-emitting diode (LED) that converts electrical signals into light. This light is then picked up by a phototransistor, which acts as a signal amplifier, converting the signal back to an electrical form that is then transmitted over the circuit. This process of converting currents to light signals and back again helps to prevent noise in the circuit, as well as providing electrical isolation.</p><p>In the case of 4N26S optoisolators, the LED emits a beam of light. This beam is received by the phototransistor and amplified, generating a proportional electrical signal. The amount of current flowing through the phototransistor is proportional to the amount of current running through the LED. This allows the 4N26S to accurately control and monitor various signals and parameters over long distances with a higher degree of precision.</p><h3>Conclusion</h3><p>4N26S optoisolators are a reliable and effective way to transfer electrical signals from one circuit to another, while keeping the circuits electrically isolated from each other. These optoisolators are designed for a wide range of applications, including power controllers, switching controls, industrial controllers, communications, and networking, and can help improve both safety and performance in robotics and motion control applications. By making use of a light-emitting diode (LED) and a phototransistor, the electrons flowing through the circuit are converted to light signals and then converted back to an electrical form, providing electrical isolation and helping to prevent noise in the circuit.</p>

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