АО3400 | pinout | datasheet | circuit

AO3400 Super Transistor!

AO3400 Pinout Equivalent

AO3400 is an N-channel enhanced FET, which is characterized by low on-resistance and can pass high currents, which is commonly used in power management, audio amplification, motor drive, etc.

Note: Because the Gate pin is very sensitive to signal changes, the parasitic inductance and parasitic capacitance of the Gate pin should be reduced when designing the circuit.

AO3400 Replacement Model of the Same Type

Картина	Имя	Создатели	Максимальная мощность	Максимальный ток	Максимальное напряжение	Тип упаковки
	АО3400	Alpha & Omega	1.4W	5.8А	30В	СОТ-23
	2N7002	ON Полупроводник	0.2W	0.115A	60В	СОТ-23
	БСС138	Фэрчайлд	0.36W	0.22A	50В	СОТ-23
	FQP27P06	Фэрчайлд	120 Вт	27A	60В	ТО-220АБ
	ИРФ840	Инфинеон	134W	8А	500В	ТО-220АБ
	S12302	Инфинеон	0.4W	2.1А	20В	СОТ-23

The best alternative in Table 2N7002 has a maximum voltage of 60V, which is higher than the voltage that AO3400 can withstand. Their maximum current and maximum power parameters are also the same. The packaging type of 2N7002 is also the same as AO3400.

The BSS148 component has a maximum power of 0.25W and a maximum current of 0.22A, both of which are lower than the parameters of AO3400. So if BSS148 is to be used to replace AO3400, in practical circuits, the current and face should not be higher than these two values.

The FQPF27P06 component has a maximum power of 50W, a maximum current of 27A, and a maximum voltage of 20V. Additionally, its packaging type may not be ideal as a substitute. If we want to replace AO3400 with FQPF27P06, we need to adjust the circuit.

The IRF840 component has a maximum power of 125W, a maximum current of 8A, a maximum voltage of 500V, and a packaging type of TO-220AB. Compared with AO3400, its various parameters are different, so if IRF840 is to replace AO3400, the circuit and related components need to be adjusted.

The maximum current of S12302 is less than AO3400. If the current in the circuit exceeds 2.1A, S12302 cannot meet the demand and may cause overheating or even damage.