Model: RQA0009SXAQS-VB.
Silkscreen: VBI1322G.
Brand: VBsemi.
Package: SOT89-3.
Channel Type: N—Channel.
Maximum Voltage (VDS): 30V.
Maximum Current (ID): 0.3A.
On-resistance (RDS(ON)): 22mΩ @ VGS=10V, VGS=20V.
Gate Threshold Voltage (Vth): 0.5V.
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**Detailed Parameter Description:**.
1. **Channel Type:** N—Channel, indicating that this is an N-channel MOSFET. .
2. **Maximum Voltage (VDS):** 30V, indicating the maximum drain-source voltage that the device can withstand. .
3. **Maximum Current (ID):** 0.3A, indicating the maximum drain current the device can withstand. .
4. **On-resistance (RDS(ON)):** 22mΩ @ VGS=10V, VGS=20V, this is the drain-source resistance in the on state at different gate voltages. .
5. **Gate Threshold Voltage (Vth):** 0.5V, the minimum gate voltage required to turn the device into the on state. .
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**Application Introduction:**.
RQA0009SXAQS-VB is an N-channel field effect transistor (MOSFET), commonly used in power switching and regulation applications. Due to its small package and low on-resistance, it is suitable for electronic devices that require high performance and compact design. .
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**Application Field Module:**.
1. **Power Switch Module:** Used in power switching circuits to achieve high-efficiency power switching and regulation. .
2. **LED lighting driver module:** In LED lighting systems, it is used to switch the power supply control of LED lights to improve lighting efficiency. .
3. **Battery management module:** Suitable for battery-powered devices to achieve effective battery management and energy saving. .
4. **Small motor control module:** Can be used to control small motors such as fans, motors, etc. .
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**Function:**.
Among these modules, the role of RQA0009SXAQS-VB is mainly as a power switch or regulator to control the flow of current and realize the switching and regulation functions of the module. It can help improve the efficiency of the circuit and reduce power consumption while maintaining a compact design. .
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**Precautions for use:**.
1. **Maximum ratings:** Do not exceed the maximum current and voltage values specified in the device specifications. .
2. **Static protection:** When handling and installing devices, please take static protection measures to prevent damage to the device caused by electrostatic discharge. .
3. **Heat dissipation:** For high power applications, proper heat dissipation is required to ensure that the device operates at normal operating temperature. .
4. **Application circuit design:** When designing the circuit, please refer to the data sheet and application notes provided by the manufacturer to ensure the correct power supply and control circuit.