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

Alpha & Omega Semiconductor Inc. AON6266

Name: AON6266
Brand: Alpha & Omega Semiconductor Inc.
SKU: AON6266
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AON6266

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: 8-PowerSMD, Flat Leads

Datasheet:: AON6266.pdf

Description:: MOSFET N-CH 60V 13A/30A 8DFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AON6266 from Alpha & Omega Semiconductor is a 60V, 30A N-channel Trench Power AlphaMOS (αMOS MV) MOSFET in DFN5x6 package, featuring <15mΩ R_DS(ON) at V_GS=10V and <19mΩ at V_GS=4.5V, optimized for synchronous rectification in high-efficiency DC/DC converters.

For engineers reviewing the AON6266 datasheet, pinout, applications, or equivalent options, key selection criteria include gate charge (Q_g=21–30nC), avalanche ruggedness (E_AS=20mJ), thermal resistance (R_θJC=3.3°C/W), and 100% UIS-tested reliability in motor drive and industrial power stages.

Technical Context

The AON6266 employs trench-gate αMOS MV technology to achieve low conduction loss and fast switching with Q_gd/Q_gs ratio of ~0.55, supporting high-frequency operation up to 1MHz in hard-switched topologies. Its 100% UIS testing ensures robust unclamped inductive switching capability under real-world transient conditions.

Thermal design is enabled by a low R_θJC of 3.3°C/W and R_θJA of 55°C/W on standard FR-4, allowing 38W continuous power dissipation at T_C=100°C. The device's body diode exhibits t_rr=17ns and Q_rr=60nC, minimizing reverse recovery losses in synchronous rectifier configurations.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60V - Maximum drain-source blocking voltage for 48V bus and industrial input stage applications
I_D (V_GS=10V)	30A - Continuous current rating enabling high-power density converter designs without forced cooling
R_DS(ON) (V_GS=10V)	<15mΩ - Low conduction loss yielding ≤13.5W I²R loss at 30A, critical for thermal management
R_DS(ON) (V_GS=4.5V)	<19mΩ - Ensures stable on-state performance with 5V gate drivers in logic-level systems
Q_g (10V)	21–30nC - Gate charge value defining driver strength requirements and switching loss trade-offs
E_AS	20mJ - Avalanche energy rating confirming ruggedness in inductive load switching without snubbers
t_r/t_f	2.5/2.5ns - Fast switching transitions reducing overlap loss in high-frequency PWM circuits

Pinout & Package

Package: DFN5x6 (5mm × 6mm, 1.0mm height, exposed drain pad). Thermal performance relies on soldering the bottom-side thermal pad to a large copper area.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8 (Drain Pad)	Drain (D)	Entire bottom-side copper pad connects to drain node - primary current path and thermal conduction path
1 (Top-side)	Gate (G)	Control terminal requiring low-inductance routing to minimize ringing during fast switching
3, 4, 5, 6, 7, 8 (Top-side)	Source (S)	Multiple source terminals reduce bond-wire inductance and improve current sharing in parallel layouts

Key Features

Feature	Design Value
100% UIS tested	Guarantees single-pulse avalanche capability up to 20mJ without derating, eliminating need for external clamping in motor drive H-bridges
Low Q_g/Q_gd ratio	Q_gd = 2.6nC and Q_g = 21–30nC yield Miller ratio ~0.1–0.12, improving noise immunity and dV/dt ruggedness
Trench αMOS MV process	Enables <15mΩ R_DS(ON) at 60V while maintaining high cell density and low gate capacitance (C_iss = 1340pF)
Optimized body diode	t_rr = 17ns and Q_rr = 60nC reduce reverse recovery loss and EMI in synchronous buck rectifiers
100% R_g tested	Gate resistance measured per unit (0.7–2.3Ω) ensures consistent switching speed and driver compatibility across production lots

Applications

Server VRM Synchronous Rectifier	Industrial BLDC Motor Inverter
Use Scenario: High-current, high-frequency (300–600kHz) point-of-load converter supplying CPU/GPU core voltage. IC Role / Device Role / Timing Role: Low-side synchronous rectifier replacing Schottky diode to reduce conduction loss and improve efficiency above 90%. Use Value: <15mΩ R_DS(ON) at 10V enables ≤1.35W conduction loss at 30A, directly increasing VRM efficiency and reducing heatsink size.	Use Scenario: 3-phase inverter driving 200–500W brushless DC motors in factory automation actuators. IC Role / Device Role / Timing Role: Half-bridge low-side switch handling continuous 30A phase current with 100% UIS-rated transients. Use Value: 20mJ E_AS withstands inductive kickback during PWM dead-time, eliminating need for external TVS protection.
AC/DC PFC Output Stage	Telecom DC/DC Intermediate Bus Converter
Use Scenario: Output rectification in 600W active clamp forward or LLC resonant converter. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier operating at 100–300kHz with 4.5V gate drive from controller. Use Value: <19mΩ R_DS(ON) at V_GS=4.5V maintains low loss even with logic-level gate drivers, improving light-load efficiency.	Use Scenario: 48V-to-12V intermediate bus converter in 5G base station power subsystems. IC Role / Device Role / Timing Role: Primary-side high-side switch in asymmetric half-bridge topology with 60V blocking requirement. Use Value: 60V V_DS rating supports 48V nominal input with 20% surge margin, while low C_oss (123pF) minimizes capacitive switching loss.

Server VRM Synchronous Rectifier

Industrial BLDC Motor Inverter

Use Scenario: High-current, high-frequency (300–600kHz) point-of-load converter supplying CPU/GPU core voltage.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier replacing Schottky diode to reduce conduction loss and improve efficiency above 90%.

Use Value: <15mΩ R_DS(ON) at 10V enables ≤1.35W conduction loss at 30A, directly increasing VRM efficiency and reducing heatsink size.

Use Scenario: 3-phase inverter driving 200–500W brushless DC motors in factory automation actuators.

IC Role / Device Role / Timing Role: Half-bridge low-side switch handling continuous 30A phase current with 100% UIS-rated transients.

Use Value: 20mJ E_AS withstands inductive kickback during PWM dead-time, eliminating need for external TVS protection.

AC/DC PFC Output Stage

Telecom DC/DC Intermediate Bus Converter

Use Scenario: Output rectification in 600W active clamp forward or LLC resonant converter.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier operating at 100–300kHz with 4.5V gate drive from controller.

Use Value: <19mΩ R_DS(ON) at V_GS=4.5V maintains low loss even with logic-level gate drivers, improving light-load efficiency.

Use Scenario: 48V-to-12V intermediate bus converter in 5G base station power subsystems.

IC Role / Device Role / Timing Role: Primary-side high-side switch in asymmetric half-bridge topology with 60V blocking requirement.

Use Value: 60V V_DS rating supports 48V nominal input with 20% surge margin, while low C_oss (123pF) minimizes capacitive switching loss.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Infineon IPP60R190P7	650V, 21A, TO-220, R_DS(ON)=190mΩ - higher voltage, lower current, larger package	Designed for offline SMPS primary side, not suitable for low-voltage synchronous rectification	Select only if 650V blocking and through-hole mounting are required; not drop-in for AON6266's 60V/30A DFN role
Vishay SiR872DP	60V, 32A, PowerPAK SO-8, R_DS(ON)=12.5mΩ at 10V, Q_g=32nC - slightly lower R_DS(ON), higher Q_g, different footprint	Same voltage/current class but SO-8 package requires PCB redesign; higher gate charge increases driver loss	Consider when SO-8 layout exists and lower R_DS(ON) outweighs gate drive penalty; not pin-compatible

Compared with IPP60R190P7 and SiR872DP, the AON6266 delivers optimal balance of low R_DS(ON), low Q_g, and DFN5x6 thermal performance for high-current, high-frequency synchronous rectification - where compact size, fast switching, and avalanche ruggedness are prioritized over ultra-low R_DS(ON) or high-voltage isolation.

Availability

AON6266 is available at Aetrix Electronics and suitable for server VRMs, industrial BLDC inverters, and telecom DC/DC converters requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for AON6266 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 AON6266 belongs to AOS's αMOS MV trench MOSFET product line, engineered specifically for high-efficiency, high-current synchronous rectification and motor drive applications demanding low R_DS(ON), fast switching, and rugged avalanche performance.

FAQ

What is the maximum continuous drain current rating for the AON6266 at 100°C case temperature?

The AON6266 supports 30A continuous drain current at T_C=25°C, de-rating linearly to 22.5A at T_C=100°C per Figure 13. This is defined by package thermal limits, not silicon capability, and assumes proper PCB copper area for heat spreading. The AON6266 must be mounted with its exposed drain pad soldered to ≥1in² 2oz copper for rated performance.

Does the AON6266 have a specified gate threshold voltage range, and how does it affect 4.5V gate drive?

Yes, the AON6266 has a gate threshold voltage (V_GS(th)) of 1.5–2.5V at T_J=25°C, ensuring reliable turn-on with 4.5V gate drive. At this voltage, R_DS(ON) remains <19mΩ, and the device delivers full 30A current capability. The low V_GS(th) tolerance also provides margin against gate driver droop in high-noise motor drive environments.

Is the AON6266 suitable for use in automotive applications?

No, the AON6266 is explicitly qualified for the consumer market only, as stated in the datasheet. It is not AEC-Q101 qualified, lacks automotive-grade screening, and is not authorized for life-support or safety-critical automotive systems. For automotive use, engineers should select AOS's automotive-qualified equivalents such as the AONR21321.

How is the avalanche energy rating of the AON6266 validated, and what test conditions apply?

The AON6266's 20mJ E_AS rating is validated via 100% unclamped inductive switching (UIS) testing per JEDEC JESD24-11, using L=0.1mH, I_AS=30A, and T_J≤150°C. Each unit undergoes this stress test, ensuring guaranteed single-pulse ruggedness without derating - a key differentiator for industrial motor control where inductive transients are routine.

What is the thermal resistance from junction to case (R_θJC) for the AON6266, and how does it impact heatsink design?

The AON6266 has an R_θJC of 3.3°C/W, measured with the device mounted to a large heatsink. This low value means that for a 38W power dissipation at T_C=100°C, the junction temperature stays at 150°C - the absolute maximum. Effective heatsinking requires low-thermal-resistance interface material and direct contact with the exposed drain pad, not top-side cooling.

AON6266 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: AlphaMOS

Package/Case:: 8-PowerSMD, Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 13A (Ta), 30A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 15mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 2.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 30 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1340 pF @ 30 V

FET Feature:: -

Power Dissipation (Max):: 5W (Ta), 38W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-DFN (5x6)

AON6266 FAQ

1.How can I place an order for AON6266 through Aetrix?

Please submit a Request for Quotation (RFQ) for AON6266 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 AON6266 reliable?

The price and inventory of AON6266 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AON6266 is usually 5 days.

3.What payment methods are accepted for AON6266?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AON6266 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AON6266?

AON6266 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AON6266 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 AON6266?

For technical support, including AON6266 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AON6266 requirements.

6.How does Aetrix verify that AON6266 is sourced from the original manufacturer or authorized distributors?

All AON6266 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 AON6266 meets industry standards.

7.What is the process for return or replacement of AON6266?

All AON6266 units undergo pre-shipment inspection (PSI). If there is an issue with AON6266, 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 AON6266 part is unused and in its original packaging.

Return procedure for AON6266:

1.Submit a request within 90 days.

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

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