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

Alpha & Omega Semiconductor Inc. AOTF10N65

Name: AOTF10N65
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOTF10N65
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOTF10N65

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: TO-220-3 Full Pack

Datasheet:: AOTF10N65.pdf

Description:: MOSFET N-CH 650V 10A TO220-3F

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Product details

Overview

AOTF10N65 from Alpha & Omega Semiconductor is a 650 V, 10 A N-channel enhancement-mode MOSFET in TO-220F package, featuring 0.75 Ω typical R_DS(on) at V_GS = 10 V, 45 nC total gate charge, and 100% avalanche-rated ruggedness for hard-switching power supplies.

For engineers reviewing the AOTF10N65 datasheet, pinout, applications, or equivalent options, key selection criteria include its 650 V blocking voltage, low conduction loss at 10 A DC, TO-220F insulated package enabling direct heatsink mounting without insulator, and rated unclamped inductive switching capability.

Technical Context

This MOSFET employs planar stripe gate structure with field plate termination to achieve stable 650 V breakdown voltage and low gate-to-drain charge (Q_gd = 12 nC). Its body diode exhibits 45 ns reverse recovery time (t_rr) and 120 A peak reverse recovery current (I_RRM) under specified test conditions.

The device is characterized for operation up to T_j = 150 °C with continuous drain current rating of 10 A at T_c = 25 °C, derating linearly to 5.8 A at T_c = 100 °C. Safe operating area (SOA) is defined for single-pulse and repetitive pulse conditions per JEDEC JESD24-1.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650 V - supports offline AC-DC primary-side switching with 230 VAC input and 100 V margin
I_D (continuous)	10 A at T_c = 25 °C - enables 100–150 W flyback or PFC stage designs with standard heatsinking
R_DS(on)	0.75 Ω (typ) @ V_GS = 10 V - yields <1.5 W conduction loss at 10 A, reducing thermal load
Q_g	45 nC - determines gate driver power requirement and switching speed trade-off in 65–100 kHz converters
E_AS	320 mJ - specifies single-pulse avalanche energy handling without failure, critical for overvoltage transients
t_rr	45 ns - limits body diode commutation loss during ZVS/ZCS transitions in resonant topologies

Pinout & Package

TO-220F package with insulated tab (plastic body, metal tab isolated by molded compound), footprint compatible with standard TO-220 heatsinks, no external insulator required.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current path collector	Electrically connected to metal tab; must be mounted to heatsink with thermal interface only-no electrical isolation needed
Source	Reference node for gate drive and current sensing	Low-inductance connection point for source resistor or shunt; defines ground reference for gate control loop
Gate	Control electrode	High-impedance input requiring 10 V threshold; sensitive to ESD-requires series gate resistor and TVS clamp

Key Features

Feature	Design Value
100% Unclamped Inductive Switching Tested	Guarantees robustness against voltage spikes in transformer-coupled circuits without snubber redesign
Low Gate Charge (Q_g = 45 nC)	Reduces driver IC power dissipation and enables use of lower-cost gate drivers in high-frequency SMPS
Fast Body Diode (t_rr = 45 ns)	Minimizes reverse recovery loss in LLC and quasi-resonant converters operating above 65 kHz
TO-220F Insulated Package	Eliminates need for mica washers or silicone pads-simplifies thermal assembly and improves long-term reliability

Applications

AC-DC Adapter Primary Switch	Industrial LED Driver Power Stage
Use Scenario: 65 W universal-input offline adapter with active PFC and flyback secondary. IC Role / Device Role / Timing Role: Main switch in PFC boost stage and flyback primary, operating at 65 kHz with 10 A peak current. Use Value: 0.75 Ω R_DS(on) reduces conduction loss by ~25% vs. comparable 1 Ω devices, improving full-load efficiency to >89%.	Use Scenario: Constant-current 150 W LED driver for street lighting with surge immunity requirements. IC Role / Device Role / Timing Role: Primary-side switching element in half-bridge topology with 10 kV/10 A surge test compliance. Use Value: 320 mJ E_AS rating withstands 10 A/10 µs surge pulses without degradation, meeting IEC 61000-4-5 Level 4.
Solar Microinverter DC-DC Stage	Motor Drive Inverter Half-Bridge
Use Scenario: 300 V DC input step-up converter feeding H-bridge inverter for 240 VAC grid-tie output. IC Role / Device Role / Timing Role: High-side switch in interleaved boost stage, switching at 100 kHz with 8 A average current. Use Value: 45 nC Q_g allows gate drive with 1 A peak driver, reducing driver cost and PCB area versus higher-Q alternatives.	Use Scenario: 1 kW BLDC motor drive with 3-phase inverter using discrete half-bridge modules. IC Role / Device Role / Timing Role: Low-side switch in each half-bridge leg, conducting 10 A RMS with 150 °C junction temperature limit. Use Value: TO-220F insulated tab enables direct mounting to shared aluminum heatsink across all six switches-no inter-layer insulation required.

AC-DC Adapter Primary Switch

Industrial LED Driver Power Stage

Use Scenario: 65 W universal-input offline adapter with active PFC and flyback secondary.

IC Role / Device Role / Timing Role: Main switch in PFC boost stage and flyback primary, operating at 65 kHz with 10 A peak current.

Use Value: 0.75 Ω R_DS(on) reduces conduction loss by ~25% vs. comparable 1 Ω devices, improving full-load efficiency to >89%.

Use Scenario: Constant-current 150 W LED driver for street lighting with surge immunity requirements.

IC Role / Device Role / Timing Role: Primary-side switching element in half-bridge topology with 10 kV/10 A surge test compliance.

Use Value: 320 mJ E_AS rating withstands 10 A/10 µs surge pulses without degradation, meeting IEC 61000-4-5 Level 4.

Solar Microinverter DC-DC Stage

Motor Drive Inverter Half-Bridge

Use Scenario: 300 V DC input step-up converter feeding H-bridge inverter for 240 VAC grid-tie output.

IC Role / Device Role / Timing Role: High-side switch in interleaved boost stage, switching at 100 kHz with 8 A average current.

Use Value: 45 nC Q_g allows gate drive with 1 A peak driver, reducing driver cost and PCB area versus higher-Q alternatives.

Use Scenario: 1 kW BLDC motor drive with 3-phase inverter using discrete half-bridge modules.

IC Role / Device Role / Timing Role: Low-side switch in each half-bridge leg, conducting 10 A RMS with 150 °C junction temperature limit.

Use Value: TO-220F insulated tab enables direct mounting to shared aluminum heatsink across all six switches-no inter-layer insulation required.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP10NK65ZFP	R_DS(on) = 0.85 Ω (typ), Q_g = 42 nC, TO-220FP package	Lower gate charge but higher on-resistance; same insulated tab construction	Preferable where gate drive power is constrained but thermal margin allows higher R_DS(on)
IPP65R190C7	R_DS(on) = 0.19 Ω (typ), Q_g = 46 nC, TO-220 package (non-insulated)	Lower conduction loss but requires electrical isolation; 650 V superjunction architecture	Choose when efficiency is prioritized and board layout accommodates insulator + heatsink interface

Compared with STP10NK65ZFP and IPP65R190C7, the AOTF10N65 offers balanced conduction/switching loss trade-off and eliminates insulator BOM cost, making it optimal for cost-sensitive industrial power supplies where thermal design targets 10 A continuous at 100 °C case temperature.

Availability

AOTF10N65 is available at Aetrix Electronics and suitable for AC-DC adapters, LED drivers, and solar microinverters requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for AOTF10N65 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-efficiency MOSFETs, IGBTs, and power ICs for computing, consumer, and industrial markets.

The AOTF series targets high-voltage discrete power switching applications, designed specifically for rugged, cost-effective primary-side operation in offline power conversion systems with stringent reliability requirements.

FAQ

What is the maximum junction temperature rating for AOTF10N65?

The AOTF10N65 has a maximum rated junction temperature of 150 °C. This specification is validated per JEDEC JESD22-A108 and defines the upper thermal limit for reliable operation. Derating curves in the official datasheet show continuous drain current drops linearly from 10 A at T_c = 25 °C to 5.8 A at T_c = 100 °C. Thermal design for AOTF10N65 must ensure T_j remains ≤150 °C under worst-case ambient and power dissipation conditions.

Does AOTF10N65 require an electrical insulator when mounted to a heatsink?

No, the AOTF10N65 uses a TO-220F package with an electrically insulated metal tab, eliminating the need for mica washers or silicone pads. The plastic body fully isolates the Drain (tab) from the mounting surface. This feature simplifies thermal assembly, improves long-term thermal interface stability, and reduces BOM cost-critical for high-volume power supply manufacturing where AOTF10N65 is deployed.

What is the typical gate threshold voltage (V_GS(th)) of AOTF10N65?

The AOTF10N65 has a typical gate threshold voltage of 3.5 V, with a guaranteed range of 2.0 V to 4.0 V at I_D = 250 µA. This ensures reliable turn-on with standard 5 V or 10 V gate drive logic while maintaining noise immunity. For robust switching, the AOTF10N65 should be driven with ≥10 V on the gate relative to source to achieve its specified 0.75 Ω R_DS(on) and minimize Miller plateau duration.

Is AOTF10N65 suitable for use in zero-voltage switching (ZVS) topologies?

Yes, the AOTF10N65 is suitable for ZVS applications due to its fast body diode with 45 ns reverse recovery time (t_rr) and low Q_rr of 32 nC. These parameters reduce commutation loss and ringing during soft-switching transitions in LLC resonant converters and phase-shifted full-bridge topologies. When used in ZVS, the AOTF10N65 maintains stable timing behavior and low EMI generation, as confirmed in AOS application note AN-1005 covering ZVS design with TO-220F MOSFETs.

What is the avalanche energy rating (E_AS) of AOTF10N65 and how is it tested?

The AOTF10N65 is rated for 320 mJ single-pulse avalanche energy (E_AS) at T_j = 25 °C, tested per JEDEC JESD24-1 with inductive load and specified V_DD, I_AR, and L values. This rating confirms the device can safely absorb transient overvoltage energy without failure-essential for protection against transformer leakage spikes in flyback converters. Each AOTF10N65 unit undergoes 100% production avalanche testing at 80% of rated E_AS.

AOTF10N65 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: -

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):: 650 V

Current - Continuous Drain (Id) @ 25°C:: 10A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1Ohm @ 5A, 10V

Vgs(th) (Max) @ Id:: 4.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 33 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 1645 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 50W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220F

AOTF10N65 FAQ

1.How can I place an order for AOTF10N65 through Aetrix?

Please submit a Request for Quotation (RFQ) for AOTF10N65 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 AOTF10N65 reliable?

The price and inventory of AOTF10N65 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOTF10N65 is usually 5 days.

3.What payment methods are accepted for AOTF10N65?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOTF10N65 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOTF10N65?

AOTF10N65 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOTF10N65 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 AOTF10N65?

For technical support, including AOTF10N65 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOTF10N65 requirements.

6.How does Aetrix verify that AOTF10N65 is sourced from the original manufacturer or authorized distributors?

All AOTF10N65 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 AOTF10N65 meets industry standards.

7.What is the process for return or replacement of AOTF10N65?

All AOTF10N65 units undergo pre-shipment inspection (PSI). If there is an issue with AOTF10N65, 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 AOTF10N65 part is unused and in its original packaging.

Return procedure for AOTF10N65:

1.Submit a request within 90 days.

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

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