Overview
The BT151X-650LTFQ is a medium power silicon-controlled rectifier (SCR) manufactured by WeEn Semiconductors. This component is designed for power switching applications and is known for its ability to handle high DC pulses and medium power AC/DC loads. The BT151X-650LTFQ comes in a TO-220AB package, which is widely used in various industrial and consumer electronics.
SCRs like the BT151X-650LTFQ are similar to transistors but have the unique ability to latch, meaning they stay in conduction even after the gate signal is removed, until the anode-cathode current drops below the holding current. This makes them highly efficient for power control and switching applications.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Anode-Cathode Voltage (Off State) | 650 V |
| Maximum RMS Current | 12 A |
| Pulsed DC Current | 120 A |
| Gate Trigger Current (Max) | 15 mA |
| Holding Current (Max) | 20 mA |
| Latching Current (Max) | 40 mA |
| Package Type | TO-220AB |
| Gate Trigger Voltage (Max) | 1 V |
Key Features
- High Voltage Handling: The BT151X-650LTFQ can handle a maximum anode-cathode voltage of 650V in the off state.
- High Current Capability: It has a maximum RMS current of 12A and can handle pulsed DC currents up to 120A.
- Low Gate Trigger Current: The gate trigger current is a maximum of 15mA, making it efficient for control circuits.
- Holding and Latching Currents: The holding current is 20mA max, and the latching current is 40mA max, ensuring stable operation.
- TO-220AB Package: The component is available in the TO-220AB package, which is convenient for mounting and heat dissipation.
Applications
- Ignition Circuits: Used in ignition systems for vehicles and other machinery.
- Protection Circuits: Employed in overcurrent and overvoltage protection circuits.
- Motor Control: Utilized in motor control circuits for starting, stopping, and speed regulation.
- Static Switching: Applied in static switching applications where high reliability and efficiency are required.
- Dimming Circuits: Used in dimming circuits to control the brightness of lamps and other lighting systems.
Q & A
- What is the maximum anode-cathode voltage of the BT151X-650LTFQ?
The maximum anode-cathode voltage of the BT151X-650LTFQ is 650V in the off state.
- What is the maximum RMS current that the BT151X-650LTFQ can handle?
The BT151X-650LTFQ can handle a maximum RMS current of 12A.
- What is the pulsed DC current capability of the BT151X-650LTFQ?
The BT151X-650LTFQ can handle pulsed DC currents up to 120A.
- What is the gate trigger current for the BT151X-650LTFQ?
The gate trigger current for the BT151X-650LTFQ is a maximum of 15mA.
- What are the holding and latching currents for the BT151X-650LTFQ?
The holding current is 20mA max, and the latching current is 40mA max.
- In what package is the BT151X-650LTFQ available?
The BT151X-650LTFQ is available in the TO-220AB package.
- What are some common applications of the BT151X-650LTFQ?
The BT151X-650LTFQ is commonly used in ignition circuits, protection circuits, motor control, static switching, and dimming circuits.
- How does the BT151X-650LTFQ differ from a transistor?
The BT151X-650LTFQ differs from a transistor in its ability to latch, meaning it stays in conduction even after the gate signal is removed, until the anode-cathode current drops below the holding current.
- What are some equivalent SCRs to the BT151X-650LTFQ?
Some equivalent SCRs to the BT151X-650LTFQ include the BT152, TYN208, and 2N6508.
- How can the BT151X-650LTFQ be used in a dimming circuit?
The BT151X-650LTFQ can be used in a dimming circuit to control the brightness of a lamp by acting as an efficient power controller, using an RC time delay to control the AC half cycle seen by the load.
