MAC4DHMT4 Discrete Semiconductor Products

Series:	--
Packaging:	Cut Tape (CT)
Part Status:	Obsolete
Triac Type:	Logic - Sensitive Gate
Voltage - Off State:	600V
Current - On State (It (RMS)) (Max):	4A
Voltage - Gate Trigger (Vgt) (Max):	1.3V
Current - Non Rep. Surge 50, 60Hz (Itsm):	40A @ 60Hz
Current - Gate Trigger (Igt) (Max):	5mA
Current - Hold (Ih) (Max):	15mA
Configuration:	Single
Operating Temperature:	-40°C ~ 110°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Supplier Device Package:	DPAK
Base Part Number:	MAC4

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Thyristors - TRIACs - MAC4DHMT4 Application Field and Working Principle

Thyristors are a type of semiconductor devices that control electrical power. They allow current to pass in only one direction, and can be used in a circuit as a switch and as a regulator. Thyristors are also known as Triac, which stands for TRIode ACTive, and are a type of thyristors with three layers of semiconductor material. They have terminals labeled A1 and A2, which are the control leads, and terminals labeled MT1 and MT2, which are the main terminals. MAC4DHMT4 (Medium Surge 4-layer Dual Gate Triac) is a type of triac with a rating of 4A.

Application Field

MAC4DHMT4 is mainly used in applications requiring high surge capabilities and medium power levels. It is mostly used in electrical and electronic devices such as low voltage relays, heating elements, and solenoids which are connected to AC lines of less than 400 volts. MAC4DHMT4 can also be used in lamps and LED lighting applications up to a few hundred watts.

Working Principle

The MAC4DHMT4 has two gates, an Anode and a Cathode, that act as the control inputs for the triac. When a positive voltage is applied to the Anode terminal with respect to the Cathode, the MT1 and MT2 terminals become turned on. This is known as forward conduction, and it allows current to flow between MT1 and MT2. When the Anode voltage is removed, the triac turns off and current stops flowing.The MAC4DHMT4 has four layers of silicon, and these layers are used to control the current flow between MT1 and MT2. One layer acts as the gate, which is where the Anode and Cathode control inputs are connected, and the other three layers are responsible for controlling the current flow. When the anode voltage is applied, the control current passes through the gate, which then triggers the Triac. The current then flows through the other three layers and is switched on until the gate voltage is removed. In addition, the four layers of the MAC4DHMT4 allow it to have a higher surge capacity than other types of triacs. This makes it ideal for applications where high surges of current are required.

Conclusion

The MAC4DHMT4 is a type of Triac with four layers of silicon and a rating of 4A. It is mostly used in applications that require high surge capabilities and medium power levels. It is ideal for applications such as low voltage relays, heating elements and solenoids, and lamps and LED lighting up to a few hundred watts. It works by the application of a positive voltage to the Anode terminal with respect to the Cathode, which turns on the MT1 and MT2 terminals. This then causes a current to flow through the four layers of the Triac, which allows it to have a high surge capacity.

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