Alpha & Omega Semiconductor, Ltd. Single FETs, MOSFETs AO3438

N-Channel 20V 3A (Ta) 1.4W (Ta) Surface Mount SOT-23-3

Manufacturer: Alpha & Omega Semiconductor Inc.
Win Source Part Number: 199070-AO3438
Packaging: Reel - TR
Mounting: SMD (SMT)
Technology: MOSFET
Polarity: N-Channel
Power Dissipation (Max): 1.4W (Ta)
Categories: Discrete Semiconductor Products
Drive Voltage (Max Rds On, Min Rds On): 1.8V, 4.5V
Status: Obsolete(EOL)
Temperature Range - Operating: -55°C to 150°C (TJ)
Case / Package: SOT-23-3L
Dimension: TO-236-3, SC-59, SOT-23-3
Drain-Source Breakdown Voltage: 20V
Continuous Drain Current at 25°C: 3A (Ta)
Gate-Source Threshold Voltage: 1V @ 250μA
Max Gate Charge: 3.8nC @ 4.5V
Max Input Capacitance: 320pF @ 10V
Maximum Gate-Source Voltage: ±8V
Maximum Rds On at Id,Vgs: 62 mOhm @ 3A, 4.5V
Popularity: Medium
Fake Threat In the Open Market: 88 pct.
Supply and Demand Status: Balance
Quantity per package: 6k pcs

MOSFET N-CH 20V 3A SOT23-3L Product overview: AO3438 from Alpha and Omega Semiconductor, Inc. is a MOSFET Transistor for power switching, load control, motor drives, DC-DC converters, battery systems, and board-level power design. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 20V, 3A, SOT23. Search-friendly keywords include MOSFET, power transistor, switching, N-channel, P-channel, 20V, 3A, SOT23, MOSFET Transistor, Single FETs, MOSFETs. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 278-AO3438 can be used for catalog matching and distributor lookup.