PC4SD21NTZCF

Series:	--
Packaging:	Tube
Part Status:	Discontinued at Digi-Key
Output Type:	Triac
Zero Crossing Circuit:	Yes
Number of Channels:	1
Voltage - Isolation:	5000Vrms
Voltage - Off State:	800V
Static dV/dt (Min):	500V/µs
Current - LED Trigger (Ift) (Max):	5mA
Current - On State (It (RMS)) (Max):	100mA
Current - Hold (Ih):	3.5mA
Turn On Time:	50µs (Max)
Voltage - Forward (Vf) (Typ):	1.2V
Current - DC Forward (If) (Max):	50mA
Operating Temperature:	-30°C ~ 100°C
Mounting Type:	Through Hole
Package / Case:	6-DIP (0.300", 7.62mm), 5 Leads
Supplier Device Package:	6-DIP
Approvals:	CSA, UR

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Introduction
The PC4SD21NTZCF is an optoisolator device with Triac, SCR Output. It is used to protect sensitive circuitry from electrical noise, power supply variations, and other abnormalities. The device utilizes a optically-isolated integrated circuit (IC) to provide optical isolation between input signals and output circuits. The optically isolated signal is then electrically transferred to the output circuits. The optoisolator has applications in a variety of areas, including power switching, security and aerospace. The device is also used in industrial electronic applications such as motor control circuits and LED lighting. Features and Benefits
The PC4SD21NTZCF is designed to provide a reliable optical isolation barrier between input and output circuits. It has an isolation voltage of 3.75Vdc which provides a higher level of protection. The device also has a lower leakage current specification, which ensures higher signal accuracy. It also features a high data rate of up to 104 Hz, which provides faster data transfer rates. Additionally, the device’s open collector output stage provides excellent noise immunity.Application Areas
The PC4SD21NTZCF is used in a variety of applications, including power switching and motor control. In industrial applications, the device is commonly used for controlling high-current loads such as electric motors and LED lighting. The optoisolator is also used in aerospace to provide a high-precision isolation barrier for communication between satellites and ground control. It is also used in security to protect sensitive circuits from electrical noise, power supply variations, and unwanted signals.Working Principle
The PC4SD21NTZCF optoisolator has three main components – an input circuit, an LED, and a photo-sensitive output. The optoisolator relies on physical isolation created by a light barrier, which prevents electrical noise from passing through.The input circuit is connected to the opto-isolator’s supply voltage. When a signal is received, the current passes through the optoisolator’s LED. The LED will then emit light, which is directed towards the photo-sensitive output. When the light hits the output, the current is then transferred to the output circuit. This output circuit is then connected to the output signal, completing the circuit. Conclusion
The PC4SD21NTZCF optoisolator is a versatile, reliable device that provides optical isolation between input signals and output circuits. It has an isolation voltage of 3.75Vdc and a lower leakage current specification, which allows for higher signal accuracy. The device also has a high data rate of up to 104 Hz and an open collector output stage, making it well-suited for industrial applications, such as motor control and LED lighting. Additionally, the device can be used in aerospace, security, and other sensitive areas to protect circuitry from electrical noise, power supply variations, and unwanted signals.

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