**APM2321AAC-TRG-VB**.
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**Silk screen:** VB2290 .
**Brand:** VBsemi .
**Parameters:** SOT23; P—Channel Channel, -20V; -4A; RDS(ON)=57mΩ@VGS=4.5V, VGS=12V; Vth=-0.81V .
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**Package:** SOT23 .
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**Detailed parameter description:** .
- **Channel type:** P—Channel .
- **Maximum withstand voltage:** -20V .
- **Max. Current: ** -4A .
- **On-resistance: ** 57mΩ (at VGS=4.5V), 57mΩ (at VGS=12V) .
- **Threshold voltage: ** - 0.81V .
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**Application Introduction:** .
This device is suitable for modules that require P-channel power switching and amplification, providing reliable switching function and signal amplification. Main application areas include but are not limited to power switches, signal amplifier circuits and power inverters. .
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**Function:** .
- Provide reliable P-channel power switching function. .
- Used for signal amplification and conditioning. .
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**Application field module:**.
1. **Power switch module:** Used to build high-voltage, efficient power switch to stabilize the output voltage. .
2. **Signal amplifier circuit module:** Suitable for circuits that require P-channel power amplification, such as audio amplifiers. .
3. **Power inverter module:** In the inverter circuit, it is used to control the high-voltage switch to achieve conversion from DC to AC. .
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**Usage Precautions:**.
1. **Voltage and current limits:** Do not exceed the specified maximum voltage and current. .
2. **Note on polarity:** Pay attention to the negative voltage characteristics of P-channel devices. .
3. **Electrostatic protection:** Take anti-static measures during handling and installation to avoid damaging the device. .
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If you need further information or have other questions, please let me know.