ELT3043

Current - LED Trigger (Ift) (Max):	5mA
Approvals:	cUL, Demko, Fimko, Nemko, Semko, UL
Supplier Device Package:	4-DIP
Package / Case:	4-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 100°C
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.5V (Max)
Turn On Time:	--
Current - Hold (Ih):	280µA (Typ)
Series:	--
Static dV/dt (Min):	1kV/µs
Voltage - Off State:	400V
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Zero Crossing Circuit:	Yes
Output Type:	Triac
Part Status:	Active
Packaging:	Tube

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<p>Optoisolators with Triac, SCR Output are widely used in a variety of applications. The ELT3043 is a relative new device on the market that offers a higher performance and a cost effective alternative to other optoisolators.</p><p>The ELT3043 is an optocoupler designed for interfacing between two AC power systems, either two separate systems or an AC mains and a control system. It is suitable for use in lighting applications that require an AC voltage to be controlled. It has a built in zero-cross detector, a triac, and an SCR output which provide a low power, low cost solution for controlling AC voltages. This makes it an ideal solution for applications such as industrial control systems, home automation systems, and LED lighting systems.</p><p>The ELT3043 consists of an input side and an output side. On the input side is a photosensitive optocoupler with a zero-cross detection circuit that senses when the input voltage crosses zero. The output side consists of a triac and an SCR circuit. The triac is responsible for controlling the power on the output side while the SCR provides a latch state at the output voltage.</p><p>The optocoupler in the ELT3043 is a photodiode that generates an electrical signal when illuminated with light. The optical signal is converted to an electrical signal by the optocoupler which is then sent to the zero-cross detector circuit. The detector compares the voltage to a predetermined reference voltage and outputs a signal when the input voltage crosses the reference voltage. This signal is then sent to the triac and the SCR controlling circuits.</p><p>The triac output of the ELT3043 is responsible for controlling the output voltage on the AC mains side. The SCR is also triggered by the zero-cross detector and latches the output voltage on or off. The ELT3043 has a built-in zero-cross detection circuit that is not affected by the ambient illumination levels, allowing for a reliable controlled output. The ELT3043 contains an integrated thermal protection device to protect the internal circuit from over-current.</p><p>The ELT3043 is capable of operating at high output powers with very low power consumption. Its efficient design makes it an ideal solution for applications that require low power, low cost, and high-efficiency optocouplers. It is relatively easy to install and can be used in a variety of applications. In addition, it has excellent noise immunity and can operate reliably in harsh conditions.</p><p>The ELT3043 is a great choice for applications that require reliable and high-efficiency optocouplers. It is cost-effective, easy to use, and has excellent noise immunity. It is suitable for a variety of applications including industrial control systems, home automation systems, and LED lighting systems. The ELT3043 offers an ideal solution for interfacing between two AC power systems.</p>

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