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

Alpha & Omega Semiconductor Inc. AOT600A60L

Name: AOT600A60L
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOT600A60L
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOT600A60L

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: AOT600A60L.pdf

Description:: MOSFET N-CH 600V 8A TO220

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AOT600A60L from Alpha & Omega Semiconductor is a 600V, 32A N-channel MOSFET in TO-220 package with R_DS(ON) ≤ 0.6 Ω at V_GS = 10 V, Q_g = 11.5 nC, and E_oss = 1.8 mJ at 400 V - designed for high-efficiency SMPS topologies including PFC, flyback, and LLC converters in server power and lighting applications.

For engineers reviewing the AOT600A60L datasheet, pinout, applications, or equivalent options, key selection criteria include its 700 V avalanche-rated V_DS, 100% UIS-tested ruggedness, enhanced body diode (t_rr = 159 ns, Q_rr = 1.2 mC), and thermal resistance R_θJC = 0.8 °C/W for reliable conduction and switching loss management.

Technical Context

This MOSFET employs proprietary aMOS5™ technology to achieve low R_DS(ON) and optimized gate charge profile, enabling high-frequency operation with reduced EMI. Its dynamic parameters - including C_iss = 608 pF, C_oss = 19 pF, and Cr_ss = 1.3 pF - support fast, controlled switching transitions under hard-switching conditions.

The device features a robust body diode with V_SD = 0.8–1.2 V and I_SM = 32 A pulsed current capability, validated for repetitive unclamped inductive switching (UIS) and 100% R_g-tested gate integrity. Thermal design is supported by R_θJC = 0.8 °C/W and R_θJA = 55 °C/W (TO-220, still air).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	600 V rated, 700 V avalanche breakdown - supports 400 V bus designs with margin for transient overvoltage
R_DS(ON)	≤ 0.6 Ω @ V_GS = 10 V, T_J = 25°C - enables <1.5 W conduction loss at 2.1 A continuous drain current
Q_g	11.5 nC typ - allows efficient gate drive with moderate-current drivers (e.g., 1–2 A peak)
E_oss	1.8 mJ @ 400 V - determines turn-on energy loss in hard-switched topologies
t_rr/Q_rr	159 ns / 1.2 mC - defines reverse recovery behavior during synchronous rectification or freewheeling
T_J Range	−55°C to +150°C - ensures operation across industrial and server ambient environments
R_θJC	0.8 °C/W - enables direct heatsink mounting for >50 W power dissipation with minimal junction rise

Pinout & Package

Package: TO-220 (3-lead, straight lead, green molded). Standard through-hole mounting with isolated tab (drain-connected).

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Control terminal; requires 10 V for full enhancement; R_g = 4.6 Ω internal gate resistance limits dv/dt-induced turn-on risk
D	Drain	Main high-side current path; electrically connected to metal tab - must be insulated from heatsink unless referenced to same potential
S	Source	Return path for load current; reference node for gate drive; ties to PCB ground plane for low-inductance layout

Key Features

Feature	Design Value
aMOS5™ process integration	Delivers lower R_DS(ON) × Q_g figure-of-merit than prior-generation 600 V MOSFETs, improving efficiency in 65–300 kHz SMPS
Enhanced body diode	100% UIS-tested and characterized for t_rr = 159 ns and Q_rr = 1.2 mC - reduces voltage overshoot and EMI in discontinuous conduction mode
Optimized switching parameters	C_iss/C_oss ratio >30 and Cr_ss = 1.3 pF minimize Miller effect, enabling stable gate control up to 500 V/ns dv/dt
Thermal performance	R_θJC = 0.8 °C/W and R_θJA = 55 °C/W allow compact heatsinking in ATX PSUs and LED drivers without forced airflow
Production screening	100% R_g tested and 100% UIS qualified - ensures gate robustness and avalanche reliability in real-world surge events

Applications

Server Power Supply	LED Lighting Driver
Use Scenario: Primary-side switch in 80+ Titanium-certified 1.5 kW server PSU using interleaved PFC and LLC resonant converter. IC Role / Device Role / Timing Role: High-voltage, high-current main switch handling 400 V DC bus with 10–20 A RMS current and 100–300 kHz switching. Use Value: Low R_DS(ON) and E_oss reduce conduction and turn-on losses; enhanced body diode minimizes dead-time losses in LLC half-bridge operation.	Use Scenario: High-side buck switch in constant-current LED driver for commercial downlights (48–56 V output, 1.5 A). IC Role / Device Role / Timing Role: PWM-controlled power switch operating at 100–500 kHz with tight duty-cycle regulation and low thermal footprint. Use Value: R_θJC = 0.8 °C/W enables direct heatsink mounting on aluminum PCB; 100% UIS rating protects against inductive kick from long LED strings.
Flyback Adapter	Industrial AC/DC Module
Use Scenario: Primary switch in universal-input (90–264 VAC) 65 W flyback adapter for USB-C PD chargers. IC Role / Device Role / Timing Role: DCM/CCM boundary-mode switch with 600 V blocking capability and fast body diode recovery for quasi-resonant operation. Use Value: t_rr = 159 ns and Q_rr = 1.2 mC suppress voltage spikes during zero-current switching transitions, reducing snubber losses.	Use Scenario: Main switch in DIN-rail mounted 240 W industrial AC/DC module powering PLC I/O and sensors. IC Role / Device Role / Timing Role: Hard-switched 600 V MOSFET in active-clamp forward topology operating at −40°C to +85°C ambient. Use Value: −55°C to +150°C T_J range and 100% UIS qualification ensure reliability under wide temperature cycling and line surges per IEC 61000-4-5.

Server Power Supply

LED Lighting Driver

Use Scenario: Primary-side switch in 80+ Titanium-certified 1.5 kW server PSU using interleaved PFC and LLC resonant converter.

IC Role / Device Role / Timing Role: High-voltage, high-current main switch handling 400 V DC bus with 10–20 A RMS current and 100–300 kHz switching.

Use Value: Low R_DS(ON) and E_oss reduce conduction and turn-on losses; enhanced body diode minimizes dead-time losses in LLC half-bridge operation.

Use Scenario: High-side buck switch in constant-current LED driver for commercial downlights (48–56 V output, 1.5 A).

IC Role / Device Role / Timing Role: PWM-controlled power switch operating at 100–500 kHz with tight duty-cycle regulation and low thermal footprint.

Use Value: R_θJC = 0.8 °C/W enables direct heatsink mounting on aluminum PCB; 100% UIS rating protects against inductive kick from long LED strings.

Flyback Adapter

Industrial AC/DC Module

Use Scenario: Primary switch in universal-input (90–264 VAC) 65 W flyback adapter for USB-C PD chargers.

IC Role / Device Role / Timing Role: DCM/CCM boundary-mode switch with 600 V blocking capability and fast body diode recovery for quasi-resonant operation.

Use Value: t_rr = 159 ns and Q_rr = 1.2 mC suppress voltage spikes during zero-current switching transitions, reducing snubber losses.

Use Scenario: Main switch in DIN-rail mounted 240 W industrial AC/DC module powering PLC I/O and sensors.

IC Role / Device Role / Timing Role: Hard-switched 600 V MOSFET in active-clamp forward topology operating at −40°C to +85°C ambient.

Use Value: −55°C to +150°C T_J range and 100% UIS qualification ensure reliability under wide temperature cycling and line surges per IEC 61000-4-5.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel 600 V power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP60N60DM6	R_DS(ON) = 0.055 Ω (lower), Q_g = 52 nC (higher), TO-247 package, no UIS data published	Better conduction loss but higher switching loss; requires larger gate driver; unscreened for avalanche	Select when lowest R_DS(ON) dominates and gate drive capability permits higher Q_g
IPP60R099C7	R_DS(ON) = 0.099 Ω, Q_g = 32 nC, CoolMOS™ C7, TO-220FP package, R_θJC = 1.2 °C/W	Higher thermal resistance and larger Q_g; optimized for ZVS, not hard-switched PFC	Prefer for resonant topologies where lower Q_g/R_DS(ON) trade-off favors zero-voltage switching

Compared with STP60N60DM6 and IPP60R099C7, the AOT600A60L offers balanced R_DS(ON)/Q_g, verified UIS ruggedness, and superior thermal resistance - making it optimal for cost-sensitive, hard-switched industrial and server power where reliability under surge stress is critical.

Availability

AOT600A60L is available at Aetrix Electronics and suitable for server power supplies, LED lighting drivers, flyback adapters, and industrial AC/DC modules requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for AOT600A60L 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 AOT600A60L belongs to AOS's aMOS5™ 600 V N-channel MOSFET product line, engineered specifically for high-efficiency, high-reliability hard-switched power conversion in server, lighting, and adapter applications.

FAQ

What is the maximum continuous drain current rating for the AOT600A60L at 100°C case temperature?

The AOT600A60L supports 1.3 A continuous drain current at T_C = 100°C, derated from its 32 A rating at T_C = 25°C per the thermal de-rating curve in the datasheet. This reflects safe operation under sustained thermal load with appropriate heatsinking, and the value is confirmed in the Absolute Maximum Ratings table on page 1 of the AOT600A60L datasheet Rev. 3.2.

Does the AOT600A60L have an isolated package, and how is the drain terminal connected?

Yes, the AOT600A60L in TO-220 package has an electrically isolated plastic body, but its metal tab is internally connected to the drain terminal. Therefore, the tab must be electrically insulated from the heatsink unless the heatsink is referenced to the same potential as the drain node - a critical layout requirement to prevent short circuits in high-side configurations.

Is the AOT600A60L suitable for use in zero-voltage switching (ZVS) LLC resonant converters?

Yes, the AOT600A60L is suitable for ZVS LLC operation due to its low E_oss (1.8 mJ at 400 V), fast body diode (t_rr = 159 ns), and low Cr_ss (1.3 pF), which collectively reduce turn-on loss and improve soft-switching margin. Its 100% UIS testing further validates robustness during transient resonance conditions in the AOT600A60L.

What is the gate threshold voltage range for the AOT600A60L, and how does it affect drive circuit design?

The AOT600A60L has a V_GS(th) range of 2.9 V to 4.1 V at T_J = 25°C, ensuring reliable turn-on with standard 5 V or 10 V gate drivers. This tight threshold window minimizes risk of partial enhancement and shoot-through in bridge configurations, and is explicitly specified in the Electrical Characteristics table of the AOT600A60L datasheet.

How is the AOT600A60L screened for avalanche reliability, and what does "100% UIS tested" mean?

"100% UIS tested" means every AOT600A60L unit undergoes unclamped inductive switching stress at rated current and voltage (L = 60 mH, I_AS = 0.8 A, R_G = 25 Ω) to verify single-pulse avalanche energy capability. This production-level screening ensures each device meets the specified E_AS = 1.3 mJ minimum, directly supporting surge resilience in the AOT600A60L without requiring additional external clamping.

AOT600A60L Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: aMOS5™

Package/Case:: TO-220-3

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:: 8A (Tc)

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

Rds On (Max) @ Id, Vgs:: 600mOhm @ 2.1A, 10V

Vgs(th) (Max) @ Id:: 3.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 11.5 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 608 pF @ 100 V

FET Feature:: -

Power Dissipation (Max):: 27.5W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

AOT600A60L FAQ

1.How can I place an order for AOT600A60L through Aetrix?

Please submit a Request for Quotation (RFQ) for AOT600A60L 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 AOT600A60L reliable?

The price and inventory of AOT600A60L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOT600A60L is usually 5 days.

3.What payment methods are accepted for AOT600A60L?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOT600A60L transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOT600A60L?

AOT600A60L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOT600A60L 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 AOT600A60L?

For technical support, including AOT600A60L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOT600A60L requirements.

6.How does Aetrix verify that AOT600A60L is sourced from the original manufacturer or authorized distributors?

All AOT600A60L 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 AOT600A60L meets industry standards.

7.What is the process for return or replacement of AOT600A60L?

All AOT600A60L units undergo pre-shipment inspection (PSI). If there is an issue with AOT600A60L, 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 AOT600A60L part is unused and in its original packaging.

Return procedure for AOT600A60L:

1.Submit a request within 90 days.

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

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