AOD421

$0.14

Description：MOSFET P-CH 20V 12.5A TO252
Series：-
Mfr：Alpha & Omega Semiconductor Inc.
Package：Tape & Reel (TR)

SKU:87d068860a9e Category: Single FETs, MOSFETs Brand: Alpha & Omega Semiconductor Inc.

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Product introduction

Product Detailed Parameters

Description：MOSFET P-CH 20V 12.5A TO252
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：12.5A (Ta)
Drive Voltage (Max Rds On, Min Rds On)：2.5V, 4.5V
Rds On (Max) @ Id, Vgs：75mOhm @ 12.5A, 10V
Vgs(th) (Max) @ Id：1.4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs：4.6 nC @ 4.5 V
Vgs (Max)：±12V
Input Capacitance (Ciss) (Max) @ Vds：620 pF @ 10 V
FET Feature：-
Power Dissipation (Max)：2W (Ta), 18.8W (Tc)
Operating Temperature：-55°C ~ 175°C (TJ)
Grade：-
Qualification：-
Mounting Type：Surface Mount
Supplier Device Package：TO-252 (DPAK)
Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63

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AOD421

Overview

The AOD421 is a P-Channel Enhancement Mode Field Effect Transistor manufactured by Alpha & Omega Semiconductor Inc. It utilizes advanced trench technology to deliver low on-resistance and gate charge. The device features a drain-source voltage (Vdss) of -20V and a continuous drain current (Id) of 12.5A at 25°C case temperature. Key electrical parameters include an on-resistance (Rds(on)) of less than 22 milliohms at Vgs = -10V and Id = -12.5A, and less than 28 milliohms at Vgs = -4.5V. The component is housed in a TO-252 package with a maximum power dissipation of 2W at ambient temperature.

Feature Summary

Advanced trench technology for optimized performance
Low gate charge for efficient switching
Logic-level gate drive capability

Applications

PWM control circuits
Load switching applications
General purpose power management

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as manufacturers may update part markings or packaging formats over time. Confirm RoHS compliance status and moisture sensitivity level requirements against your assembly process specifications. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component for low-voltage DC-DC converters or battery-powered systems requiring efficient P-channel switching. The logic-level gate threshold allows direct driving from standard microcontrollers without additional level shifting. Consider thermal management constraints given the 2W power dissipation rating in the TO-252 package.

Part Context

This device belongs to Alpha & Omega Semiconductor's portfolio of trench MOSFETs designed for high-efficiency power applications. It serves as a compact solution for replacing older planar technologies in space-constrained designs. The TO-252 form factor facilitates automated surface-mount assembly while providing adequate thermal performance for moderate current loads.