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

Alpha & Omega Semiconductor Inc. AOWF360A70

Name: AOWF360A70
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOWF360A70
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOWF360A70

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: TO-262-3 Long Leads, I2PAK, TO-262AA

Datasheet:: AOWF360A70.pdf

Description:: MOSFET N-CH 700V 12A TO262F

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Product details

Overview

AOWF360A70 from Alpha & Omega Semiconductor is a 700V, N-channel MOSFET in TO-262F package with R_DS(ON) ≤ 0.36 Ω at V_GS = 10 V, Q_g = 22.5 nC, and E_oss = 2.8 mJ at 400 V - designed for high-voltage flyback SMPS in PD adapters and LED lighting.

For engineers reviewing the AOWF360A70 datasheet, pinout, applications, or equivalent options, key selection criteria include UIS ruggedness (100% tested), dv/dt immunity (1000 V/ns), body diode robustness (T_rr = 310 ns, Q_rr = 4.8 mC), and thermal performance (R_θJC = 4.2 °C/W).

Technical Context

The AOWF360A70 uses proprietary aMOS5™ technology to achieve low conduction loss and optimized switching parameters, including C_iss = 1360 pF, C_oss = 34 pF, and C_rss = 1.7 pF at V_DS = 5 V - enabling reduced EMI in high-frequency flyback converters.

It features enhanced body diode characteristics (V_SD = 0.86–1.2 V, I_RM = 24.5 A) and avalanche-rated operation (E_AS = 50 mJ, I_AR = 7.6 A), with gate threshold voltage V_GS(th) = 3.4–4.6 V and guaranteed 100% R_g testing for consistent drive behavior.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	700 V - rated blocking voltage for 400–600 V DC-link applications like USB PD adapters
R_DS(ON), max	0.36 Ω - enables <3.5 W conduction loss at 6 A continuous drain current
Q_g, typ	22.5 nC - determines gate drive power requirement and switching speed in 65–100 kHz flyback designs
E_oss @ 400 V	2.8 mJ - defines hard-switching energy loss during turn-on; critical for efficiency at high V_DS
T_J range	−55 to +150 °C - supports operation in enclosed lighting and industrial power supplies
R_θJC	4.2 °C/W - defines heatsink interface thermal path for TO-262F package in forced-air or passive-cooled systems
dv/dt ruggedness	1000 V/ns - ensures reliable operation under fast transient voltage stress in discontinuous conduction mode

Pinout & Package

Package: TO-262F (isolated tab, surface-mount compatible variant of TO-262 with enhanced thermal pad isolation).

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Control terminal requiring 10 V drive for full enhancement; R_g = 2 Ω verified per unit
D	Drain	Main high-side switching node; connected to transformer primary and HV DC bus
S	Source	Power ground reference for gate drive and current sensing; tied to source of synchronous rectifier in some topologies

Key Features

Feature	Design Value
aMOS5™ technology	Enables lower R_DS(ON) × Q_g figure-of-merit vs. prior-gen superjunction MOSFETs
100% UIS tested	Guarantees unclamped inductive switching survival up to 50 mJ without derating
Enhanced body diode	Reduces reverse recovery charge (Q_rr = 4.8 mC) and time (T_rr = 310 ns) for snubberless flyback operation
Optimized capacitance profile	C_iss/C_oss ratio > 40:1 minimizes capacitive turn-on loss and improves EMI signature
100% R_g tested	Ensures gate resistance consistency (2 Ω typ) across production lots for predictable drive timing

Applications

USB-C PD Adapters	Flyback SMPS for LED Lighting
Use Scenario: 65–100 W compact AC/DC adapter with active clamp or quasi-resonant control. IC Role / Device Role: Primary-side high-voltage switch handling 400–500 V DC bus in discontinuous conduction mode. Use Value: Low E_oss and fast T_rr reduce switching loss and enable >93% efficiency at full load without snubber.	Use Scenario: Constant-voltage LED driver powering streetlight or commercial downlight modules. IC Role / Device Role: Main power switch in isolated flyback topology operating at 65 kHz with wide input range (90–305 VAC). Use Value: 700 V rating and 1000 V/ns dv/dt immunity prevent false triggering during line surges and lightning transients.
TV Power Supplies	Industrial AC/DC Converters
Use Scenario: Standby and main power supply in 4K UHD smart TVs with multi-rail outputs. IC Role / Device Role: High-side switch in auxiliary flyback converter delivering 12 V/1 A for system control logic. Use Value: R_DS(ON) ≤ 0.36 Ω limits standby conduction loss to <0.2 W, supporting Energy Star Tier 2 compliance.	Use Scenario: Enclosed DIN-rail mounted AC/DC module for factory automation sensors and PLC I/O. IC Role / Device Role: Primary switch in ruggedized flyback design with extended temperature operation (−40 to +85 °C ambient). Use Value: −55 to +150 °C T_J range and 150 °C max junction temperature allow full power derating over industrial temperature envelope.

USB-C PD Adapters

Flyback SMPS for LED Lighting

Use Scenario: 65–100 W compact AC/DC adapter with active clamp or quasi-resonant control.

IC Role / Device Role: Primary-side high-voltage switch handling 400–500 V DC bus in discontinuous conduction mode.

Use Value: Low E_oss and fast T_rr reduce switching loss and enable >93% efficiency at full load without snubber.

Use Scenario: Constant-voltage LED driver powering streetlight or commercial downlight modules.

IC Role / Device Role: Main power switch in isolated flyback topology operating at 65 kHz with wide input range (90–305 VAC).

Use Value: 700 V rating and 1000 V/ns dv/dt immunity prevent false triggering during line surges and lightning transients.

TV Power Supplies

Industrial AC/DC Converters

Use Scenario: Standby and main power supply in 4K UHD smart TVs with multi-rail outputs.

IC Role / Device Role: High-side switch in auxiliary flyback converter delivering 12 V/1 A for system control logic.

Use Value: R_DS(ON) ≤ 0.36 Ω limits standby conduction loss to <0.2 W, supporting Energy Star Tier 2 compliance.

Use Scenario: Enclosed DIN-rail mounted AC/DC module for factory automation sensors and PLC I/O.

IC Role / Device Role: Primary switch in ruggedized flyback design with extended temperature operation (−40 to +85 °C ambient).

Use Value: −55 to +150 °C T_J range and 150 °C max junction temperature allow full power derating over industrial temperature envelope.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP7NK80ZFP	800 V V_DS, R_DS(ON) = 0.58 Ω, Q_g = 32 nC, TO-220FP package	Higher conduction loss and slower switching; suited for lower-frequency (<50 kHz), cost-sensitive designs	Prefer when board space allows larger package and thermal margin exceeds 10 °C/W
IPP65R041CFD7	650 V V_DS, R_DS(ON) = 0.041 Ω, Q_g = 42 nC, TO-220 package	Lower voltage rating but superior R_DS(ON); requires input voltage clamping below 550 V DC	Select only if input DC bus is regulated ≤ 500 V and efficiency priority outweighs surge robustness

Compared with STP7NK80ZFP and IPP65R041CFD7, the AOWF360A70 delivers optimal balance of 700 V rating, sub-0.4 Ω on-resistance, and 22.5 nC gate charge - making it uniquely suitable for compact, high-efficiency, surge-immune flyback converters where both voltage headroom and thermal footprint matter.

Availability

AOWF360A70 is available at Aetrix Electronics and suitable for USB-C PD adapters, LED lighting drivers, and industrial AC/DC converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for AOWF360A70 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 AOWF360A70 belongs to AOS' aMOS5™ superjunction MOSFET product line, engineered specifically for high-efficiency, high-reliability flyback and resonant converters in compact power supplies.

FAQ

What is the maximum continuous drain current for AOWF360A70 at T_C = 100°C?

The AOWF360A70 supports I_D = 48 A continuous drain current at case temperature T_C = 100°C, as specified in its Absolute Maximum Ratings table. This rating assumes proper heatsinking and is limited by junction temperature not exceeding 150°C. The AOWF360A70's R_θJC = 4.2 °C/W enables this current level in well-designed TO-262F mounting configurations.

Does AOWF360A70 have avalanche capability, and is it tested?

Yes, the AOWF360A70 is rated for repetitive avalanche energy (E_AS) of 50 mJ and single-pulsed avalanche energy (E_A) of 50 mJ, with I_AR = 7.6 A. It undergoes 100% UIS (unclamped inductive switching) testing per unit, ensuring robustness in inductive load switching events common in flyback transformer primary circuits.

How does the TO-262F package differ from standard TO-262 for AOWF360A70?

The TO-262F package used by AOWF360A70 features an electrically isolated drain tab, unlike the standard TO-262 where the tab is internally connected to the drain. This isolation eliminates need for insulating pads in heatsink mounting, simplifies thermal design, and improves safety in double-insulated power supplies - a key distinction confirmed in AOS' packaging documentation for AOWF360A70.

What is the typical gate threshold voltage range for AOWF360A70?

The AOWF360A70 has a gate threshold voltage V_GS(th) range of 3.4 V to 4.6 V at I_D = 250 μA and T_J = 25°C. This tight distribution ensures consistent turn-on behavior across temperature and process variation, supporting reliable operation with 5 V or 10 V gate drive in flyback controllers such as UCC28780 or MP6908.

Is AOWF360A70 suitable for use in 100 kHz+ quasi-resonant flyback designs?

Yes, the AOWF360A70 is optimized for high-frequency flyback operation, with low Q_gd/Q_gs ratio (6.3 nC / 9 nC), fast t_r = 17 ns and t_f = 13 ns, and minimized C_oss = 34 pF - all contributing to low switching loss and clean voltage transitions above 100 kHz. Its E_oss = 2.8 mJ at 400 V further confirms suitability for QR and active-clamp topologies.

AOWF360A70 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: aMOS5™

Package/Case:: TO-262-3 Long Leads, I2PAK, TO-262AA

Packaging:: Tube

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 700 V

Current - Continuous Drain (Id) @ 25°C:: 12A (Tj)

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

Rds On (Max) @ Id, Vgs:: 360mOhm @ 6A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 22.5 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1360 pF @ 100 V

FET Feature:: -

Power Dissipation (Max):: 29.5W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-262F

AOWF360A70 FAQ

1.How can I place an order for AOWF360A70 through Aetrix?

Please submit a Request for Quotation (RFQ) for AOWF360A70 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 AOWF360A70 reliable?

The price and inventory of AOWF360A70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOWF360A70 is usually 5 days.

3.What payment methods are accepted for AOWF360A70?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOWF360A70 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOWF360A70?

AOWF360A70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOWF360A70 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 AOWF360A70?

For technical support, including AOWF360A70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOWF360A70 requirements.

6.How does Aetrix verify that AOWF360A70 is sourced from the original manufacturer or authorized distributors?

All AOWF360A70 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 AOWF360A70 meets industry standards.

7.What is the process for return or replacement of AOWF360A70?

All AOWF360A70 units undergo pre-shipment inspection (PSI). If there is an issue with AOWF360A70, 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 AOWF360A70 part is unused and in its original packaging.

Return procedure for AOWF360A70:

1.Submit a request within 90 days.

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

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