4N28S1(TA)

Output Type:	Transistor with Base
Supplier Device Package:	6-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):	10% @ 10mA
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Part Status:	Active
Packaging:	Tape & Reel (TR)

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<p>Optoisolators are devices employed to electrically isolate two systems while providing data transfer between them. The 4N28S1 series optoisolators use transistors as the output device and contain either photovoltaic or photoconductive input drive circuits.</p><p>The 4N28S1 is a six-pin single-channel Optocoupler which has an operating temperature range from -55°C to +125°C and voltage rating up to 30V. It is widely used for telecommunications, automotive, industrial automation, and other applications. The optoisolator is available in several package styles such as through-hole, SMD or surface mount, quarter-scale, and miniature, and can also be mixed with other components according to the individual application requirements.</p><p>The working principle of the 4N28S1 optoisolator is based on the emission of light from an LED, which is directed on to a light-sensitive device such as a photosensitive transistor or a photo-diode. When the LED is forward biased, current flows and light is emitted from the LED. The light is then absorbed by a light-sensitive device, such as a phototransistor, and a voltage is generated across its terminals. This voltage can be used to control a circuit, such as an electronic switch.</p><p>The 4N28S1 optoisolator has several application fields. It can be used in data transmission, where it can transfer the data signals between two circuits that must be electrically isolated. It can also be used for sensing external mechanical or electrical parameters such as temperature, pressure, water level, etc. It can be used in automotive and industrial applications, such as current sensing and relay control. In addition, it can also be used in telecommunications and signal control applications.</p><p>Due to its isolation feature, the 4N28S1 optoisolator can provide immunity from EMI, RFI, and other electrical noises or spikes. It can also provide increased safety to personnel and equipment from dangerous voltages and currents. Additionally, its isolator configuration is beneficial in situations where galvanic isolated circuits are necessary.</p><p>In short, the 4N28S1 optoisolator is a versatile device for providing electrical isolation and data transfer while maintaining a high level of accuracy and reliability. It can be employed in various applications, as discussed above, and has an operating temperature range from -55°C to +125°C.</p>

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