EL3012S(TB)

Current - On State (It (RMS)) (Max):	100mA
Approvals:	CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL
Supplier Device Package:	6-SMD
Package / Case:	6-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 100°C
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.18V
Turn On Time:	--
Current - Hold (Ih):	250µA (Typ)
Series:	--
Current - LED Trigger (Ift) (Max):	5mA
Static dV/dt (Min):	100V/µs (Typ)
Voltage - Off State:	250V
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Zero Crossing Circuit:	No
Output Type:	Triac
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Optoisolators, also known as optocouplers or photocouplers, are electronic components used to isolate one electrical circuit from another using light.The EL3012S(TB) is a optoisolator from a variety of devices in the EL3000 series, which are classified as optoisolators with triac, SCR outputs. This device provides 2500 Vrms of isolation in accordance with UL1577 and 2.5 kV of reinforced insulation. It has a tight CTR linearity, fast response time, and is suitable for surge current protection and for a variety of applications including AC and DC motor control.

Application Field

The EL3012S(TB) provides a number of useful benefits that can be exploited in a variety of applications. It is especially beneficial in controlling movements of motors and other mechanical equipment, such as an automated manufacturing line.The EL3012S(TB) is also useful in a number of other applications, such as:• Appliance control, for example refrigerator temperature control• Power supplies/regulators• Light dimmers and motor speed controls• White goods such as washing machines and dishwashers• Counterfeit protection and tamper switches• Medical equipment• Industrial automation and robotics• Surge current protection

Working Principle

The EL3012S(TB) is built with an optically-isolated two-transistor output. It contains a light-emitting diode and a phototransistor. The light-emitting diode produces a pulsed light beam to the phototransistor. The phototransistor amplifies and converts the light-emitting diode’s energy to an output signal.The EL3012S(TB) is protected from spurious signals by a bidirectional electrostatic current protection. An over-current protection and thermal protection on the output of the phototransistor also serves to further protect it from excess loads and over-voltages. Signal crossover distortion is also minimized by a mirrored output incorporated in the optical circuit.The EL3012S(TB) is designed to be able to control both AC and DC motors up to 10 amps of current and is suitable for a wide range of applications where a reliable signal and a high voltage insulation are needed.

Conclusion

The EL3012S(TB) is an optoisolator with triac and SCR outputs, and offers a wide range of benefits and applications. It is suitable for a wide range of applications including motor control, power supplies, surge current protection, and appliance control. Its optically isolated two-transistor output offers various protections such as bidirectional electrostatic current protection, over-current protection and thermal protection. As such, it is a reliable and trustworthy device for a variety of complex tasks where an isolated signal and high voltage insulation are needed.

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