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

Alpha & Omega Semiconductor Inc. AOTF190A60L

Name: AOTF190A60L
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOTF190A60L
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOTF190A60L

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: TO-220-3 Full Pack

Datasheet:: AOTF190A60L.pdf

Description:: MOSFET N-CH 600V 20A TO220F

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Product details

Overview

AOTF190A60L from Alpha & Omega Semiconductor is a 600V, 80A N-channel power MOSFET in TO-220F Green package, featuring R_DS(ON) ≤ 0.19Ω at V_GS = 10V, Q_g = 34nC, and E_oss = 4.3mJ at 400V - optimized for high-efficiency SMPS with PFC, LLC, and flyback topologies in telecom and lighting systems.

For engineers reviewing the AOTF190A60L datasheet, pinout, applications, or equivalent options, key selection criteria include its 700V BVDSS rating, 100% UIS-tested ruggedness, 3.9°C/W R_θJC, 12.5V/ns dv/dt capability, and enhanced body diode with t_rr = 341ns and Q_rr = 6.8mC.

Technical Context

This MOSFET employs proprietary aMOS5™ technology to achieve low conduction loss and optimized switching parameters. Its gate threshold voltage (3.2–4.6V) and low R_g (5Ω) support stable drive in hard-switched converters, while C_iss/C_oss/C_rss values (1935pF / 55pF / 1.25pF) enable predictable EMI performance in high-frequency PFC stages.

The device is rated for continuous operation up to T_J = 150°C with 100% R_g and UIS testing. Its body diode exhibits V_SD = 0.85–1.2V and robust reverse recovery (I_RM = 28A, t_rr = 341ns), making it suitable for synchronous rectification and freewheeling roles where diode stress must be minimized.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	600V - maximum blocking voltage for primary-side switching in 400V DC bus applications
R_DS(ON)	< 0.19Ω @ V_GS = 10V - enables low conduction loss at 10A–25A load currents
Q_g	34nC - determines gate drive power requirement and switching speed in 100–300kHz converters
E_oss	4.3mJ @ 400V - quantifies energy loss during turn-on; critical for ZVS/LLC efficiency
R_θJC	3.9°C/W - defines thermal path from junction to case; enables heatsink sizing for 32W continuous dissipation
dv/dt ruggedness	12.5V/ns - ensures reliable operation under fast voltage transients in high-noise SMPS environments
t_rr	341ns - body diode recovery time affecting switching loss and EMI in discontinuous conduction modes

Pinout & Package

Package: TO-220F Green - insulated flange, surface-mount compatible with through-hole assembly; flange electrically connected to drain.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Control terminal; requires ≥10V drive for full enhancement; 5Ω internal gate resistance limits ringing
D	Drain	High-voltage output node; connected to flange; supports 700V transient breakdown margin
S	Source	Reference node for gate drive; tied to power ground in common-source configuration

Key Features

Feature	Design Value
aMOS5™ technology	Enables <0.19Ω R_DS(ON) at 600V rating without sacrificing switching speed or ruggedness
100% UIS tested	Guarantees unclamped inductive switching survival up to I_AS = 2.7A, L = 60mH, V_DD = 150V
Enhanced body diode	Reduces reverse recovery charge (Q_rr = 6.8mC) and peak current (I_RM = 28A) versus standard MOSFETs
Optimized EMI profile	Low Crss (1.25pF) and controlled dV/dt (12.5V/ns) minimize radiated emissions in compact layouts
TO-220F Green package	RoHS-compliant, flange-isolated housing enabling safe mounting to heatsinks without insulating pads

Applications

Server PSU PFC Stage	LED Driver Flyback
Use Scenario: Active clamp PFC boost converter operating at 65–100kHz with 400V DC bus and 1.5kW output. IC Role / Device Role / Timing Role: Primary-side high-side switch handling 15–25A RMS current and 600V blocking. Use Value: Low R_DS(ON) reduces conduction loss; low Q_g and E_oss improve light-load efficiency and ZVS initiation.	Use Scenario: Isolated flyback LED driver for commercial lighting with 230V AC input and 48V/3A output. IC Role / Device Role / Timing Role: Primary-side switching transistor in quasi-resonant topology with variable frequency control. Use Value: Enhanced body diode withstands high dI/dt during demagnetization; 100% UIS test ensures reliability under output short-circuit events.
Telecom Rectifier Module	Industrial Adapter Primary Switch
Use Scenario: 48V-output telecom rectifier using interleaved LLC resonant topology with 380–400V DC input. IC Role / Device Role / Timing Role: Half-bridge leg switch operating at 300–500kHz with zero-voltage switching. Use Value: Low C_oss (55pF) and E_oss (4.3mJ) reduce turn-on loss; 3.9°C/W R_θJC supports forced-air cooling at 70°C ambient.	Use Scenario: Universal-input (90–264V AC) adapter for industrial control systems requiring high surge immunity. IC Role / Device Role / Timing Role: Primary-side switch in active-clamp forward converter handling 100% line surge and hold-up requirements. Use Value: 700V BVDSS provides 100V margin over 600V transients; 100% R_g test ensures gate integrity under ESD and layout-induced overshoot.

Server PSU PFC Stage

LED Driver Flyback

Use Scenario: Active clamp PFC boost converter operating at 65–100kHz with 400V DC bus and 1.5kW output.

IC Role / Device Role / Timing Role: Primary-side high-side switch handling 15–25A RMS current and 600V blocking.

Use Value: Low R_DS(ON) reduces conduction loss; low Q_g and E_oss improve light-load efficiency and ZVS initiation.

Use Scenario: Isolated flyback LED driver for commercial lighting with 230V AC input and 48V/3A output.

IC Role / Device Role / Timing Role: Primary-side switching transistor in quasi-resonant topology with variable frequency control.

Use Value: Enhanced body diode withstands high dI/dt during demagnetization; 100% UIS test ensures reliability under output short-circuit events.

Telecom Rectifier Module

Industrial Adapter Primary Switch

Use Scenario: 48V-output telecom rectifier using interleaved LLC resonant topology with 380–400V DC input.

IC Role / Device Role / Timing Role: Half-bridge leg switch operating at 300–500kHz with zero-voltage switching.

Use Value: Low C_oss (55pF) and E_oss (4.3mJ) reduce turn-on loss; 3.9°C/W R_θJC supports forced-air cooling at 70°C ambient.

Use Scenario: Universal-input (90–264V AC) adapter for industrial control systems requiring high surge immunity.

IC Role / Device Role / Timing Role: Primary-side switch in active-clamp forward converter handling 100% line surge and hold-up requirements.

Use Value: 700V BVDSS provides 100V margin over 600V transients; 100% R_g test ensures gate integrity under ESD and layout-induced overshoot.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP19NF60FD	R_DS(ON) = 0.22Ω, Q_g = 45nC, TO-220FP package, no 100% UIS test	Higher conduction loss and slower switching; less suited for high-frequency PFC	Acceptable for lower-cost 50–100kHz flyback designs where EMI and efficiency are secondary
IPP60R190C7	600V CoolMOS™, R_DS(ON) = 0.19Ω, Q_g = 32nC, TO-220 package, no flange isolation	Superior EMI profile but requires insulating pad on heatsink; lacks 100% R_g test	Preferred for ultra-low-noise telecom supplies if mechanical isolation can be managed

Compared with STP19NF60FD and IPP60R190C7, the AOTF190A60L delivers tighter gate resistance control, guaranteed UIS ruggedness, and flange-isolated packaging - enabling faster design validation in high-reliability, high-density SMPS where thermal safety and transient immunity are prioritized.

Availability

AOTF190A60L is available at Aetrix Electronics and suitable for server PSU PFC stages, LED driver flybacks, and telecom rectifier modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AOTF190A60L 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, industrial, and telecom markets.

The AOTF190A60L belongs to AOS' aMOS5™ power MOSFET family, engineered specifically for high-efficiency, high-reliability switch-mode power supplies where low R_DS(ON), controlled switching, and robust avalanche capability are essential.

FAQ

What is the maximum continuous drain current rating for AOTF190A60L at TC = 100°C?

The AOTF190A60L supports 12A continuous drain current at case temperature (T_C) = 100°C, derated from 20A at T_C = 25°C per the linear derating curve in Figure 10. This value assumes proper heatsinking and junction temperature maintained below 150°C. The AOTF190A60L's 3.9°C/W R_θJC enables this rating when mounted to an adequately sized heatsink with thermal interface material.

Does AOTF190A60L have a fully rated avalanche capability, and how is it verified?

Yes, the AOTF190A60L is 100% tested for unclamped inductive switching (UIS) per JEDEC JESD24-1, with absolute maximum rating of I_AS = 2.7A, L = 60mH, V_DD = 150V, and R_G = 25Ω at T_J = 25°C. This verification ensures single-pulse avalanche energy handling up to E_AS = 410mJ. The AOTF190A60L's datasheet specifies repetitive avalanche energy (E_AR) = 20mJ and single-pulsed E_AS = 410mJ.

What is the gate threshold voltage range for AOTF190A60L, and how does it affect drive circuit design?

The AOTF190A60L has a gate threshold voltage (V_GS(th)) range of 3.2V to 4.6V at I_D = 250μA and T_J = 25°C. This tight distribution allows reliable turn-on with 5V logic-level drivers while maintaining noise immunity. For full enhancement and minimal R_DS(ON), the AOTF190A60L requires ≥10V gate drive; its ±30V V_GS rating permits robust gate protection against overshoot.

How does the body diode performance of AOTF190A60L compare to standard MOSFETs in flyback applications?

The AOTF190A60L features an enhanced body diode with V_SD = 0.85–1.2V at I_S = 10A and t_rr = 341ns at I_F = 10A, dI/dt = 100A/μs. Compared to standard MOSFETs, this reduces reverse recovery loss and EMI generation during flyback demagnetization. The AOTF190A60L's 6.8mC Q_rr and 28A I_RM support reliable operation in high-dI/dt, high-frequency flyback converters without external snubbers.

Is AOTF190A60L suitable for use in LLC resonant converters, and what parameters support that use case?

Yes, the AOTF190A60L is well-suited for LLC resonant converters due to its low E_oss (4.3mJ at 400V), low C_oss (55pF), and 34nC Q_g - all critical for minimizing turn-on loss and enabling soft-switching across wide load ranges. Its 700V BVDSS provides margin for resonant voltage spikes, and the 12.5V/ns dv/dt rating ensures stability during rapid transitions. The AOTF190A60L's SOA curve (Figure 11) confirms safe operation under LLC's pulsed current conditions.

AOTF190A60L Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: aMOS5™

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

Packaging:: Tube

Product Status:: Not For New Designs

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 600 V

Current - Continuous Drain (Id) @ 25°C:: 20A (Tc)

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

Rds On (Max) @ Id, Vgs:: 190mOhm @ 7.6A, 10V

Vgs(th) (Max) @ Id:: 4.6V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 34 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1935 pF @ 100 V

FET Feature:: -

Power Dissipation (Max):: 32W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220F

AOTF190A60L FAQ

1.How can I place an order for AOTF190A60L through Aetrix?

Please submit a Request for Quotation (RFQ) for AOTF190A60L 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 AOTF190A60L reliable?

The price and inventory of AOTF190A60L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOTF190A60L is usually 5 days.

3.What payment methods are accepted for AOTF190A60L?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOTF190A60L transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOTF190A60L?

AOTF190A60L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOTF190A60L 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 AOTF190A60L?

For technical support, including AOTF190A60L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOTF190A60L requirements.

6.How does Aetrix verify that AOTF190A60L is sourced from the original manufacturer or authorized distributors?

All AOTF190A60L 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 AOTF190A60L meets industry standards.

7.What is the process for return or replacement of AOTF190A60L?

All AOTF190A60L units undergo pre-shipment inspection (PSI). If there is an issue with AOTF190A60L, 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 AOTF190A60L part is unused and in its original packaging.

Return procedure for AOTF190A60L:

1.Submit a request within 90 days.

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

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