K3021PG

Current - On State (It (RMS)) (Max):	100mA
Approvals:	BSI, CQC, CSA, cUR, UR, VDE
Supplier Device Package:	6-DIP
Package / Case:	6-DIP (0.400", 10.16mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 100°C
Current - DC Forward (If) (Max):	80mA
Voltage - Forward (Vf) (Typ):	1.3V
Turn On Time:	--
Current - Hold (Ih):	200µA (Typ)
Series:	--
Current - LED Trigger (Ift) (Max):	15mA
Static dV/dt (Min):	10V/µs (Typ)
Voltage - Off State:	400V
Voltage - Isolation:	5300Vrms
Number of Channels:	1
Zero Crossing Circuit:	No
Output Type:	Triac
Part Status:	Active
Packaging:	Tube

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Optoisolators - Triac, SCR Output

The K3021PG device is a high-performance optically-coupled isolator for signal transmission between two electrically isolated circuits. Using the latest optocoupler technologies, the device combines cost-effective performance in a variety of applications while providing superior isolation.This article provides an overview of the K3021PG application field and working principle.Application FieldThe K3021PG optically-coupled isolator is ideal for applications that require signal transmission across two electrically isolated circuits, such as for driving a Triac or an SCR output. This device provides up to 3-Amps of peak output current and 5-Volts of forward conduction voltage, making it suitable for a wide range of applications. Common uses include motor control, switching power conversion, EMI suppression, lighting, and industrial automation. The K3021PG is available in an SMD or through-hole packagefor easy integration into a variety of designs.Working PrincipleThe K3021PG is a single-channel optocoupler device that uses an infrared LED as its light source. A photo-sensitive IC is coupled to the LED via an optically transparent insulating barrier to electrically isolate the input from the output. Light from the LED is directed at the photodetector and causes a voltage to be generated. This signal is applied to the Triac or SCR output to cause it to turn on or off according to the input from the isolator.The optocoupler is designed to minimize system noise and minimize power dissipation. The low power consumption and short propagation delay time of the K3021PG make it an ideal solution for noise-sensitive applications, where fast switching times are important. The device has a wide operating temperature range, making it an ideal solution for applications in harsh environments.ConclusionThe K3021PG optically-coupled isolator is a versatile, reliable, and cost-effective device for applications that require signal transmission across two electrically isolated circuits. Utilizing the latest technologies, the K3021PGcan provide superior performance in a variety of applications. Its low power requirements, wide operating temperature range, and fast switching times make it the ideal solution for motor control, switching power conversion, EMI suppression, lighting, and industrial automation.

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