ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：MOSFET P-CH 20V 4A SOT23-3
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- FET Type：P-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：20 V
- Current - Continuous Drain (Id) @ 25°C：4A (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：1.5V, 4.5V
- Rds On (Max) @ Id, Vgs：41mOhm @ 4A, 4.5V
- Vgs(th) (Max) @ Id：900mV @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：15 nC @ 4.5 V
- Vgs (Max)：±8V
- Input Capacitance (Ciss) (Max) @ Vds：751 pF @ 10 V
- FET Feature：-
- Power Dissipation (Max)：1.5W (Ta)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-3
- Package / Case：3-SMD, SOT-23-3 Variant
Download product information
Overview
The AO3485 is a P-channel MOSFET from Alpha & Omega Semiconductor, designed for surface-mount applications. It features a drain-source voltage (Vdss) of 20V and a continuous drain current (Id) of 4A at ambient temperature. The device operates within a junction temperature range of -55°C to 150°C and has a maximum power dissipation of 1.5W. Packaged in an SOT-23-3 case, it utilizes advanced 300mm and 200mm process technologies to ensure robustness for load switching and battery protection tasks.
Feature Summary
- P-channel configuration optimized for discrete semiconductor products
- Advanced 300mm and 200mm manufacturing processes for enhanced robustness
- Surface-mount design suitable for compact electronic assemblies
Applications
- Load switching circuits
- Battery protection systems
- Motor drive interfaces
Procurement Notes
Verify the specific package variant and electrical tolerances against the official Alpha & Omega Semiconductor datasheet before integration. Confirm that the 20V rating and 4A current limits align with the target circuit requirements. Ensure compliance with RoHS standards if required by the end application. Cross-reference the manufacturer part number to avoid confusion with similar P-channel devices.
Selection Notes
Select this component when a low-voltage P-channel switch is required for portable or battery-powered designs. The SOT-23-3 package offers space efficiency for high-density PCB layouts. Consider the 1.5W power dissipation limit for thermal management planning. This device is appropriate for applications requiring reliable performance under standard operating temperatures without complex heat sinking solutions.
Part Context
Alpha & Omega Semiconductor specializes in power semiconductors using advanced silicon processes. The AO3485 belongs to their portfolio of robust P-channel MOSFETs engineered for reliability. These components are widely used in consumer electronics and industrial control where small form factors and dependable switching characteristics are critical for system longevity and performance stability.
Replacement Considerations
Check for direct substitutes with identical 20V Vdss and P-channel topology. Verify pinout compatibility with the SOT-23-3 footprint. Ensure replacement parts meet the same 4A current and 1.5W power specifications. Confirm that any alternative maintains comparable gate threshold voltages for consistent logic-level driving performance.
