Alpha & Omega Semiconductor Inc.TO-252-3, DPak (2 Leads + Tab), SC-63RoHS

AOD66406

MOSFET N-CH 40V 25A/60A TO252

Parameters

Parameter	Value
Brand	Alpha & Omega Semiconductor Inc.
Model	AOD66406
Package / Case	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 150°C (TJ)
FET Type	N-Channel
Drain to Source Voltage (Vdss)	40 V
Rds On (Max)	6.1mOhm @ 20A, 10V
Vgs(th) (Max)	2.5V @ 250µA
Gate Charge (Qg)	30 nC @ 10 V
Input Capacitance (Ciss)	1480 pF @ 20 V
Power Dissipation (Max)	6.2W (Ta), 52W (Tc)
Drive Voltage	4.5V, 10V
Supplier Device Package	TO-252 (DPAK)
RoHS	RoHS
Part Status	Active

Application & Notes

AOD66406 by Alpha & Omega Semiconductor Inc. is an N-channel power MOSFET rated at 40 V / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The TO-252-3, DPak (2 Leads + Tab), SC-63 package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 6.1mOhm @ 20A, 10V. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.

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All Technical Specifications

FET Type	N-Channel
Vgs (Max)	±20V
Technology	MOSFET (Metal Oxide)
Vgs(th) (Max) @ Id	2.5V @ 250µA
Rds On (Max) @ Id, Vgs	6.1mOhm @ 20A, 10V
Power Dissipation (Max)	6.2W (Ta), 52W (Tc)
Gate Charge (Qg) (Max) @ Vgs	30 nC @ 10 V
Drain to Source Voltage (Vdss)	40 V
Input Capacitance (Ciss) (Max) @ Vds	1480 pF @ 20 V
Drive Voltage (Max Rds On, Min Rds On)	4.5V, 10V
Current - Continuous Drain (Id) @ 25°C	25A (Ta), 60A (Tc)

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