MCR08BT1G Discrete Semiconductor Products |
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Allicdata Part #: | MCR08BT1GOSTR-ND |
Manufacturer Part#: |
MCR08BT1G |
Price: | $ 0.13 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | Littelfuse Inc. |
Short Description: | THYRISTOR SCR 0.8A 200V SOT223 |
More Detail: | SCR 200V 800mA Sensitive Gate Surface Mount SOT-22... |
DataSheet: | MCR08BT1G Datasheet/PDF |
Quantity: | 1000 |
1000 +: | $ 0.11706 |
2000 +: | $ 0.10674 |
5000 +: | $ 0.09985 |
10000 +: | $ 0.09296 |
25000 +: | $ 0.08814 |
50000 +: | $ 0.08608 |
Current - Hold (Ih) (Max): | 5mA |
Base Part Number: | MCR08 |
Supplier Device Package: | SOT-223 |
Package / Case: | TO-261-4, TO-261AA |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 110°C |
SCR Type: | Sensitive Gate |
Current - Non Rep. Surge 50, 60Hz (Itsm): | 8A @ 60Hz |
Current - Off State (Max): | 10µA |
Series: | -- |
Current - On State (It (RMS)) (Max): | 800mA |
Voltage - On State (Vtm) (Max): | 1.7V |
Current - Gate Trigger (Igt) (Max): | 200µA |
Voltage - Gate Trigger (Vgt) (Max): | 800mV |
Voltage - Off State: | 200V |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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?Thyristors, or silicon controlled rectifiers (SCRs), are electrical power switches used in a variety of applications, from home appliances and industrial motor control to switch circuits in the telecommunications industry. The MCR08BT1G is a widely used SCR widely found in motor control, lighting control and power applications. This article looks at the application field and working principle of the MCR08BT1G.
Application Field
The MCR08BT1G is an SCR designed for use in AC motor control and other general purpose switching applications. It is a popular choice for controlling speed and torque in automotive, home appliance, industrial, lighting and power systems. It can be used for multiple applications, including switching circuits, current limiting, time delay, phase control, temperature control and dimming control. In addition to its versatile application field, the MCR08BT1G has several key characteristics that make it well suited for a range of applications. Its most important feature is its high current ratings, which range from 40 to 400 amperes with a voltage range of up to 400 – 600 volts. This makes the MCR08BT1G ideal for controlling high-powered AC motors. It also features a high thermal cycling capability, enabling it to withstand repeated cycles of on / off switching with minimal degradation in performance.
Working Principle
The MCR08BT1G employs a thyristor as its primary switching component. A thyristor is a solid-state switching device with three connections; a gate, a cathode, and an anode. A gate-controlled current between the cathode and anode allows the thyristor to turn on or off, enabling it to be used as an on/off switch. The amount of gate current required to turn the thyristor on or off (known as the gate firing current) is determined by the gate capacitance of the thyristor. This in turn determines the switching speed of the device. The MCR08BT1G is designed to switch at frequencies up to 10 kHz and to sustain an on/off cycle for up to 5000 cycles. The device can also handle high surge currents, making it suitable for applications requiring fast switching and high current handling capabilities.
In addition to its thyristor switching component, the MCR08BT1G also features two additional components – a freewheeling diode connected in parallel with the thyristor, and a current sensing resistor connected in series with the thyristor. The freewheeling diode prevents current from flowing back into the thyristor when it is turned off, and the current sensing resistor is used to detect when the current in the device exceeds the rated operating range for the thyristor. When this happens, the MCR08BT1G will shut off the current flow, protecting the thyristor from damage.
The MCR08BT1G is an effective, versatile SCR designed to meet the most demanding of requirements. Its versatile application field and reliable switching characteristics make it an excellent choice for a wide range of applications, particularly motor control and power systems.
The specific data is subject to PDF, and the above content is for reference
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