AO3400A

Channel 1 low-side N-FET (30 V 5.7 A, logic level)

That description comes from one board. A passive of this value does a different job on each design — see the per-board component tables below for what it does in each context.

Alpha & Omega Used on 3 boards 7 placements

Value	`AO3400A`
Manufacturer part	`AO3400A`
Manufacturer	Alpha & Omega
Footprint	`Package_TO_SOT_SMD:SOT-23`
KiCad symbol	`Transistor_FET:AO3400A`
Datasheet	https://aosmd.com/res/data_sheets/AO3400A.pdf ↗

Where it is used

Board	Name	References
AXA-004	Discrete H-bridge lab PMOD module	`Q2` `Q3` `Q5` `Q6`
AXO-009	buzzer pack (active + passive) PMOD module	`Q1` `Q2`
AXO-014	IR remote link PMOD module	`Q1`