PC123A

Output Type:	Transistor
Supplier Device Package:	4-DIP
Package / Case:	4-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-30°C ~ 100°C
Vce Saturation (Max):	200mV
Current - DC Forward (If) (Max):	50mA
Voltage - Forward (Vf) (Typ):	1.2V
Current - Output / Channel:	50mA
Voltage - Output (Max):	70V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	4µs, 3µs
Turn On / Turn Off Time (Typ):	--
Current Transfer Ratio (Max):	150% @ 5mA
Current Transfer Ratio (Min):	50% @ 5mA
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Part Status:	Obsolete
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators - Transistor, Photovoltaic Output

Optoisolators, also known as optocouplers, photo-coupled isolation and opto-isolators, are optical isolation components that couple two or more circuits via light energy. One of the most popular types is the Photovolatic Output Optoisolator. PC123A is one such optoisolator that has various applications in industry.The PC123A has a photo emitter at the input stage and a phototransistor at the output stage. The emitter consists of an IR diode and a Schottky diode connected in series. When the collector-emitter of the phototransistor receives light, a current flows through the collector.The PC123A has a high-speed response, further enhanced by a series of seven emitters that enable the photo-transistor to react to light received by multiple emitters simultaneously. The device also provides high voltage insulation and high common mode transient immunity. It is suitable for use in control systems, medical equipment, telecommunications, voltage sensing, speed detection and other industrial applications.The PC123A optoisolator works by isolating the input signal from the output signal to avoid spurious spikes and fluctuations in current caused by induction of differently charged elements. It works by allowing electrons to flow between the collector and the emitter through a light sensing diode without a physical connection between the two. This helps protect one circuit from the influence of another circuit, and is commonly used to prevent power surges or other dangerous spikes from entering the system.The device also has an open collector structure, meaning that no current flows unless the light emitting diode is active, allowing it to be used either as a switch or as an output. As the circuit is open to the atmosphere, the device is very reliable and suitable for a wide variety of applications.In terms of performance, the PC123A has a high-switching frequency with a typical peak frequency of up to 60Hz. The device also has a very low operating voltage of 0.3V and a high speed response time, allowing it to be used in a wide variety of contexts.In conclusion, the PC123A optoisolator is a high-performance and reliable device which can be used for a variety of industrial applications and which helps to protect circuits from the influence of other circuits. This device is suitable for a range of applications including control systems, medical equipment, telecommunications, speed detection and voltage sensing.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description