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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Alpha & Omega Semiconductor Inc. AOTF380A60CL

Name: AOTF380A60CL
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOTF380A60CL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOTF380A60CL

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: TO-220-3 Full Pack

Datasheet:: AOTF380A60CL.pdf

Description:: MOSFET N-CH 600V 11A TO220F

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Product details

Overview

AOTF380A60CL from Alpha & Omega Semiconductor is a 600 V, 44 A N-channel enhancement-mode MOSFET in TO-220F package, featuring R_DS(ON) ≤ 0.38 Ω at V_GS = 10 V, 18 nC total gate charge, and 100% UIS-tested ruggedness. It serves as a primary switching device in high-efficiency SMPS topologies including PFC, flyback, and LLC converters for server power supplies and lighting systems.

For engineers reviewing the AOTF380A60CL datasheet, pinout, applications, or equivalent options, key selection criteria include its 700 V breakdown voltage rating, 0.95 °C/W junction-to-case thermal resistance, 251 ns body diode reverse recovery time, and optimized EMI performance via proprietary aMOS5™ technology.

Technical Context

This MOSFET employs Alpha & Omega's aMOS5™ process to achieve low conduction loss and controlled switching behavior. Its gate threshold voltage (2.6–3.8 V) ensures stable turn-on under wide drive conditions, while the 4.8 Ω gate resistance supports predictable switching transitions without external damping.

The device integrates an enhanced body diode with 11 A continuous and 44 A pulsed current capability, 0.85–1.2 V forward voltage, and 3.1 mC reverse recovery charge-enabling robust operation in hard-switched and resonant converter stages where diode commutation stress is critical.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	600 V - Rated blocking voltage for primary-side switching in 400 V DC bus applications.
R_DS(ON), max	0.38 Ω - Limits conduction loss to ≤ 0.74 W at 44 A ID, enabling compact thermal design.
Q_g, typ	18 nC - Determines gate driver power requirement and switching speed in 100–500 kHz designs.
E_oss @ 400 V	2.6 mJ - Quantifies output capacitance energy loss during zero-voltage switching transitions.
T_J range	−55 to +150 °C - Supports operation in industrial and server environments with active heatsinking.
R_θJC	0.95 °C/W - Enables direct thermal interface to heatsink; junction temperature rise is 42.8 °C at 45 W dissipation.
trr	251 ns - Defines minimum dead-time requirement in synchronous rectification and half-bridge configurations.

Pinout & Package

Package: TO-220F (full-pack, insulated tab), thermally enhanced with isolated drain connection and 300 °C soldering tolerance at lead.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Control terminal; requires ≥10 V drive for full enhancement; 4.8 Ω internal gate resistance limits dV/dt-induced ringing.
D	Drain	High-side switching node; electrically isolated from mounting surface per TO-220F insulation specification.
S	Source	Power return path and reference for gate drive; connects to PCB ground plane or source resistor for current sensing.

Key Features

Feature	Design Value
aMOS5™ technology	Enables 0.38 Ω R_DS(ON) at 600 V while maintaining <18 nC Q_g, balancing conduction and switching loss.
100% UIS tested	Guarantees unclamped inductive switching survivability up to I_AS = 1 A, L = 60 mH, V_DD = 150 V per JEDEC JESD22-A109.
Enhanced body diode	Reduces Q_rr to 3.1 mC and trr to 251 ns vs. legacy 600 V MOSFETs, lowering diode recovery loss in flyback/LLC.
Optimized EMI profile	Controlled dv/dt (20 V/ns) and Crss of 2.4 pF minimize radiated emissions in high-frequency SMPS layouts.
Thermal robustness	R_θJC = 0.95 °C/W and 150 °C T_Jmax support >45 W continuous power dissipation with standard heatsinking.

Applications

Server Power Supply	PFC Boost Converter
Use Scenario: Primary switch in 1–3 kW front-end PFC stage operating at 65–100 kHz with interleaved boost topology. IC Role / Device Role / Timing Role: High-voltage switching element handling 400 V DC bus and 15–25 A RMS input current. Use Value: Low R_DS(ON) reduces conduction loss by ~18% versus comparable 600 V MOSFETs, improving system efficiency to >96% at full load.	Use Scenario: Main switch in single-phase active PFC circuit for ATX PSUs and LED drivers. IC Role / Device Role / Timing Role: Fast-switching power transistor controlling inductor current in continuous conduction mode (CCM). Use Value: 18 nC Q_g enables clean 100 kHz switching with minimal gate driver loss; 251 ns trr prevents shoot-through in critical conduction mode (CRM) operation.
Flyback Adapter	Industrial Lighting Driver
Use Scenario: Primary-side switch in universal-input (90–264 V AC), 65 W flyback adapter for consumer electronics. IC Role / Device Role / Timing Role: Energy-transfer switch operating at 60–130 kHz with quasi-resonant control. Use Value: 700 V BVDSS margin accommodates line surges and leakage spike transients without clamping, increasing reliability in low-cost adapters.	Use Scenario: High-side switch in constant-current LED driver for streetlights and high-bay fixtures (230 V AC input). IC Role / Device Role / Timing Role: PWM-controlled power switch regulating LED string current in buck-derived topologies. Use Value: 100% UIS testing ensures survival under LED open-circuit fault conditions with inductive energy dump into the MOSFET.

Server Power Supply

PFC Boost Converter

Use Scenario: Primary switch in 1–3 kW front-end PFC stage operating at 65–100 kHz with interleaved boost topology.

IC Role / Device Role / Timing Role: High-voltage switching element handling 400 V DC bus and 15–25 A RMS input current.

Use Value: Low R_DS(ON) reduces conduction loss by ~18% versus comparable 600 V MOSFETs, improving system efficiency to >96% at full load.

Use Scenario: Main switch in single-phase active PFC circuit for ATX PSUs and LED drivers.

IC Role / Device Role / Timing Role: Fast-switching power transistor controlling inductor current in continuous conduction mode (CCM).

Use Value: 18 nC Q_g enables clean 100 kHz switching with minimal gate driver loss; 251 ns trr prevents shoot-through in critical conduction mode (CRM) operation.

Flyback Adapter

Industrial Lighting Driver

Use Scenario: Primary-side switch in universal-input (90–264 V AC), 65 W flyback adapter for consumer electronics.

IC Role / Device Role / Timing Role: Energy-transfer switch operating at 60–130 kHz with quasi-resonant control.

Use Value: 700 V BVDSS margin accommodates line surges and leakage spike transients without clamping, increasing reliability in low-cost adapters.

Use Scenario: High-side switch in constant-current LED driver for streetlights and high-bay fixtures (230 V AC input).

IC Role / Device Role / Timing Role: PWM-controlled power switch regulating LED string current in buck-derived topologies.

Use Value: 100% UIS testing ensures survival under LED open-circuit fault conditions with inductive energy dump into the MOSFET.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage power switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP60N60DM6	R_DS(ON) = 0.042 Ω (lower), Q_g = 42 nC (higher), TO-247 package, no UIS test data published.	Better conduction loss but higher gate drive demand; unsuitable for space-constrained TO-220F layouts.	Select when board area allows TO-247 and gate drive can support >40 nC; avoid if UIS robustness is mandatory.
IXFH60N60X3	R_DS(ON) = 0.045 Ω, Q_g = 27 nC, 650 V rating, TO-247, includes avalanche-rated spec sheet.	Higher voltage headroom and documented avalanche energy rating (E_AS = 120 mJ), but larger footprint and higher cost.	Prefer for mission-critical industrial UPS where avalanche immunity must be quantified; not drop-in due to package and pinout mismatch.

Compared with STP60N60DM6 and IXFH60N60X3, the AOTF380A60CL delivers optimal trade-off between R_DS(ON), gate charge, and ruggedness in TO-220F form factor-making it uniquely suited for cost-sensitive, thermally constrained 600 V SMPS designs requiring guaranteed UIS performance.

Availability

AOTF380A60CL is available at Aetrix Electronics and suitable for server power supplies, ATX adapters, and industrial LED lighting systems requiring stable component supply and consistent parametric performance across production lots.

Supply support for AOTF380A60CL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-performance MOSFETs, IGBTs, and power ICs for computing, consumer, and industrial markets.

The AOTF380A60CL belongs to AOS' aMOS5™ 600 V power MOSFET family, engineered specifically for high-efficiency, high-reliability switched-mode power supplies operating at frequencies up to 500 kHz.

FAQ

What is the maximum continuous drain current rating for AOTF380A60CL at TC = 100°C?

The AOTF380A60CL supports 7.2 A continuous drain current at case temperature (T_C) = 100°C, derated linearly from 11 A at 25°C using the 0.2 W/°C derating factor specified in the Absolute Maximum Ratings table. This value reflects thermal limitation-not silicon current capability-and assumes proper heatsinking per the TO-220F package's 0.95 °C/W R_θJC.

Does AOTF380A60CL have a fully rated avalanche capability?

The AOTF380A60CL is 100% tested for unclamped inductive switching (UIS) per JEDEC JESD22-A109 at I_AS = 1 A, L = 60 mH, V_DD = 150 V, and R_GS = 25 Ω, with T_J = 25°C. While it passes this single-pulse stress test, the datasheet does not specify repetitive avalanche energy (E_AR) or rated I_AR; design margins must rely on UIS validation and SOA curve adherence.

What is the gate threshold voltage range for AOTF380A60CL, and how does it affect drive design?

The AOTF380A60CL has a gate threshold voltage (V_GS(th)) range of 2.6 V to 3.8 V at T_J = 25°C and I_D = 250 μA. To ensure full enhancement and low R_DS(ON), gate drive must exceed 10 V-verified by the 0.38 Ω max R_DS(ON) spec at V_GS = 10 V. Drive circuits should maintain >12 V to accommodate voltage drop and noise margin.

Can AOTF380A60CL be used in place of AOT380A60CL in existing TO-220 layouts?

No-AOTF380A60CL uses the TO-220F (full-pack, insulated tab) package, whereas AOT380A60CL uses standard TO-220 (non-insulated tab). The TO-220F requires electrical isolation between drain and heatsink, altering mechanical mounting and thermal interface design. Direct substitution without layout revision risks short-circuit or thermal runaway.

What is the typical body diode forward voltage of AOTF380A60CL, and how does it impact flyback operation?

The AOTF380A60CL body diode exhibits a typical forward voltage (V_SD) of 0.85 V at I_S = 5.5 A and T_J = 25°C, rising to ~1.2 V at 125°C. In flyback converters, this low V_SD reduces conduction loss during discontinuous conduction mode (DCM) freewheeling, directly improving light-load efficiency and reducing diode heating compared to higher-V_F alternatives.

AOTF380A60CL Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: aMOS5™

Package/Case:: TO-220-3 Full Pack

Packaging:: Tube

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 600 V

Current - Continuous Drain (Id) @ 25°C:: 11A (Tj)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 380mOhm @ 5.5A, 10V

Vgs(th) (Max) @ Id:: 3.8V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 20 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 955 pF @ 100 V

FET Feature:: -

Power Dissipation (Max):: 27W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220F

AOTF380A60CL FAQ

1.How can I place an order for AOTF380A60CL through Aetrix?

Please submit a Request for Quotation (RFQ) for AOTF380A60CL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AOTF380A60CL reliable?

The price and inventory of AOTF380A60CL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOTF380A60CL is usually 5 days.

3.What payment methods are accepted for AOTF380A60CL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOTF380A60CL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOTF380A60CL?

AOTF380A60CL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOTF380A60CL order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AOTF380A60CL?

For technical support, including AOTF380A60CL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOTF380A60CL requirements.

6.How does Aetrix verify that AOTF380A60CL is sourced from the original manufacturer or authorized distributors?

All AOTF380A60CL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AOTF380A60CL meets industry standards.

7.What is the process for return or replacement of AOTF380A60CL?

All AOTF380A60CL units undergo pre-shipment inspection (PSI). If there is an issue with AOTF380A60CL, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AOTF380A60CL part is unused and in its original packaging.

Return procedure for AOTF380A60CL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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