FODM3023R1_NF098

Current - On State (It (RMS)) (Max):	70mA
Approvals:	cUR, UR
Supplier Device Package:	4-Mini-Flat
Package / Case:	4-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 100°C
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.2V
Turn On Time:	--
Current - Hold (Ih):	300µA (Typ)
Series:	--
Current - LED Trigger (Ift) (Max):	5mA
Static dV/dt (Min):	10V/µs (Typ)
Voltage - Off State:	400V
Voltage - Isolation:	3750Vrms
Number of Channels:	1
Zero Crossing Circuit:	No
Output Type:	Triac
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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The FODM3023R1_NF098 part by Opto 22 is an optoisolator triac, SCR output. It offers an efficient solution to applications with rigorous isolation and noise susceptible systems. In this article, we look at the application field and working principle of the FODM3023R1_NF098.

The FODM3023R1_NF098 is designed for interfacing between high-voltage or conventional AC electronic circuits. It is commonly used in applications ranging from power and HVAC control systems to industrial motor controllers and medical systems. This particular model features 8.8k Vrms isolation voltage, a response time of 10 microseconds off-state, and dielectric strength of 17.8k Vrms.

The FODM3023R1_NF098 utilises a galvanic isolation system using an LED and phototransistor to effectively isolate the input and output circuits electrically. This means that signals can travel from one side to the other without a direct electrical connection.

The FODM3023R1_NF098 is a triac output optoisolator. It uses a zero-crossing circuit and a ‘triac light’ to determine when to switch the load during an AC half-cycle. This allows the unit to switch when the voltage reaches a defined zero-crossing point in the AC cycle.

The FODM3023R1_NF098 is relatively easy to set up and it generally comes with an adjustable sensitivity level in the form of a trimmer. A minimal amount of current is required to activate the triac and this is determined by the sensitivity of the trimmer. If the current exceeds the trimmer’s threshold, the optoisolator will trigger the triac to turn on and conduct.

The FODM3023R1_NF098 is designed with a fast response time and dielectric strength, allowing it to effectively switch controlled currents quickly and safely. The high dielectric strength also helps to protect against electrical hazards. Its 8.8kVrms isolation voltage keeps both sides of the circuit isolated and provides maximum protection against transient over-voltage.

In conclusion, the FODM3023R1_NF098 is a triac output optoisolator designed to provide effective isolation and allow for improved noise immunity in switch-mode applications. Its fast response time and high dielectric strength help to prevent dangerous electrical hazards and transient over-voltage. Furthermore, the adjustable sensitivity trimmer allows for easy control of the threshold current required to activate the unit.

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