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

Alpha & Omega Semiconductor Inc. AOW360A70

Name: AOW360A70
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOW360A70
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOW360A70

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

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

Datasheet:: AOW360A70.pdf

Description:: MOSFET N-CH 700V 12A TO262

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Product details

Overview

AOW360A70 from Alpha & Omega Semiconductor is a 700V, N-channel MOSFET in TO-262 package with R_DS(ON) < 0.36 Ω at V_GS = 10 V, Q_g = 22.5 nC, and 100% UIS tested - used as a primary switch in high-voltage flyback SMPS for PD adapters and LED lighting.

For engineers reviewing the AOW360A70 datasheet, pinout, applications, or equivalent options, key selection criteria include its 800V V_DS @ T_j,max, 48A I_DM, E_oss = 2.8 mJ @ 400V, dv/dt ruggedness of 1000 V/ns, and thermal resistance R_θJC = 0.8 °C/W - critical for high-reliability, thermally constrained power conversion designs.

Technical Context

The AOW360A70 employs proprietary aMOS5™ technology to achieve low conduction loss and optimized switching parameters, including C_iss = 1360 pF, C_oss = 34 pF, and Cr_ss = 1.7 pF at V_DS = 5 V. Its gate threshold voltage (3.4–4.6 V) and g_FS = 10 S support stable turn-on under wide input conditions.

Designed for unclamped inductive switching (UIS) robustness, it delivers 100% avalanche-tested performance with E_AS = 5.8 mJ and T_rr = 310 ns, enabling reliable operation in discontinuous conduction mode (DCM) flyback converters without snubber circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	700 V - rated blocking voltage for 400–480 V DC-link applications with margin
R_DS(ON)	< 0.36 Ω @ V_GS = 10 V - enables <3.5 W conduction loss at 6 A continuous drain current
Q_g	22.5 nC - determines gate drive power requirement and switching speed in 65–100 kHz flyback topologies
E_oss	2.8 mJ @ 400 V - quantifies output capacitance energy loss during hard-switched turn-on
T_rr	310 ns - supports fast body-diode recovery in quasi-resonant and active-clamp flyback designs
R_θJC	0.8 °C/W - allows >60 W power dissipation with moderate heatsinking at T_C = 100 °C
dv/dt	1000 V/ns - ensures immunity to false turn-on during high-slew-rate transient events

Pinout & Package

Package: TO-262 (3-lead, straight lead, surface-mount compatible with through-hole mounting). Thermal pad on drain (D) side for direct heatsink attachment.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Control terminal; requires 10 V min for full enhancement; R_g = 2 Ω typical internal gate resistance
D	Drain	Main power output; electrically connected to exposed thermal pad; handles 700 V blocking and 48 A pulsed current
S	Source	Power return and reference node for gate drive; ties to PCB ground plane for low-inductance layout

Key Features

Feature	Design Value
aMOS5™ technology	Enables lower R_DS(ON) and reduced gate charge vs. prior-gen 700 V MOSFETs, improving efficiency in 65–100 kHz SMPS
100% UIS tested	Guarantees single-pulse avalanche energy rating of 5.8 mJ, eliminating need for external clamping in flyback primary switches
Enhanced body diode	Reduces reverse recovery charge Q_rr = 4.8 mC and T_rr = 310 ns, minimizing switching loss and EMI in DCM operation
Optimized EMI profile	Low Cr_ss/C_iss ratio (1.7/1360 pF) suppresses high-frequency ringing during turn-off transitions

Applications

PD Adapter Primary Switch	Flyback SMPS for LED Lighting
Use Scenario: 65–100 W USB-C PD adapter operating in DCM flyback topology with 400 V DC-link. IC Role / Device Role / Timing Role: Main high-side switching transistor controlling energy transfer from primary to secondary winding. Use Value: Low R_DS(ON) < 0.36 Ω and E_oss = 2.8 mJ reduce conduction and turn-on losses, enabling >92% efficiency at full load.	Use Scenario: Constant-voltage LED driver for commercial downlights with universal AC input (90–264 VAC). IC Role / Device Role / Timing Role: Primary-side power switch in isolated flyback converter delivering regulated 48 V output. Use Value: 100% UIS testing and 1000 V/ns dv/dt ruggedness ensure reliability across line surges and no-load transients.
Charger for Portable Electronics	TV Power Supply Standby Circuit
Use Scenario: Multi-port wall charger supporting USB-A + USB-C with independent regulation per port. IC Role / Device Role / Timing Role: High-voltage switch in auxiliary flyback stage powering controller ICs and optocouplers. Use Value: Fast T_rr = 310 ns and low Q_gd = 6.3 nC minimize cross-conduction loss during burst-mode operation at light loads.	Use Scenario: Standby power supply in smart TV delivering 5 V/1 A to MCU and remote receiver during off-state. IC Role / Device Role / Timing Role: Primary switch in low-power flyback converter operating in deep burst mode (<10 kHz). Use Value: Stable V_GS(th) (3.4–4.6 V) and low I_DSS (<100 nA) ensure predictable startup and minimal standby leakage current.

PD Adapter Primary Switch

Flyback SMPS for LED Lighting

Use Scenario: 65–100 W USB-C PD adapter operating in DCM flyback topology with 400 V DC-link.

IC Role / Device Role / Timing Role: Main high-side switching transistor controlling energy transfer from primary to secondary winding.

Use Value: Low R_DS(ON) < 0.36 Ω and E_oss = 2.8 mJ reduce conduction and turn-on losses, enabling >92% efficiency at full load.

Use Scenario: Constant-voltage LED driver for commercial downlights with universal AC input (90–264 VAC).

IC Role / Device Role / Timing Role: Primary-side power switch in isolated flyback converter delivering regulated 48 V output.

Use Value: 100% UIS testing and 1000 V/ns dv/dt ruggedness ensure reliability across line surges and no-load transients.

Charger for Portable Electronics

TV Power Supply Standby Circuit

Use Scenario: Multi-port wall charger supporting USB-A + USB-C with independent regulation per port.

IC Role / Device Role / Timing Role: High-voltage switch in auxiliary flyback stage powering controller ICs and optocouplers.

Use Value: Fast T_rr = 310 ns and low Q_gd = 6.3 nC minimize cross-conduction loss during burst-mode operation at light loads.

Use Scenario: Standby power supply in smart TV delivering 5 V/1 A to MCU and remote receiver during off-state.

IC Role / Device Role / Timing Role: Primary switch in low-power flyback converter operating in deep burst mode (<10 kHz).

Use Value: Stable V_GS(th) (3.4–4.6 V) and low I_DSS (<100 nA) ensure predictable startup and minimal standby leakage current.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP7NK80ZFP	800 V V_DS, R_DS(ON) = 0.85 Ω, Q_g = 35 nC, TO-220FP package	Higher R_DS(ON) increases conduction loss; larger Q_g demands stronger gate driver	Preferred where cost sensitivity outweighs efficiency targets and thermal constraints allow higher R_DS(ON)
IPP65R041CFD7	650 V V_DS, R_DS(ON) = 0.041 Ω, Q_g = 42 nC, TO-220 package, superjunction architecture	Lower voltage rating limits use to ≤380 V DC-link; superior R_DS(ON) but higher E_oss (5.2 mJ)	Selected for higher-efficiency 36 W–65 W adapters with lower input voltage range and tighter thermal budgets

Compared with STP7NK80ZFP and IPP65R041CFD7, the AOW360A70 offers optimal balance of 700 V rating, sub-0.36 Ω R_DS(ON), and 22.5 nC Q_g - making it uniquely suited for compact, high-density 65–100 W flyback designs requiring both voltage margin and thermal headroom.

Availability

AOW360A70 is available at Aetrix Electronics and suitable for PD adapters, LED lighting drivers, and TV standby power supplies requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for AOW360A70 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 modules for computing, consumer, and industrial markets.

The AOW360A70 belongs to AOS's aMOS5™ high-voltage MOSFET product line, engineered specifically for high-efficiency, high-reliability flyback and resonant converters in compact AC-DC power supplies.

FAQ

What is the maximum junction temperature rating for the AOW360A70?

The AOW360A70 has a maximum junction temperature (T_J) rating of 150°C, validated across all absolute maximum ratings and SOA curves. This rating is used to define its Safe Operating Area (SOA), thermal impedance curves (Figure 13), and derating behavior above 25°C ambient. The AOW360A70 must be operated within this limit to maintain reliability and avoid permanent degradation of its R_DS(ON) and avalanche capability.

Does the AOW360A70 support gate drive with 12 V only, or is 15 V required?

The AOW360A70 specifies V_GS(th) between 3.4 V and 4.6 V and achieves full enhancement at V_GS = 10 V, with R_DS(ON) guaranteed < 0.36 Ω under those conditions. A 12 V gate drive is sufficient and commonly used in production designs; 15 V is not required. The device's ±20 V absolute maximum gate-source voltage allows margin for ringing, but sustained >13.5 V may accelerate gate oxide stress over lifetime.

Is the AOW360A70 pin-compatible with the AOWF360A70?

No, the AOW360A70 and AOWF360A70 are not pin-compatible. While both share identical electrical specifications and die, the AOW360A70 uses TO-262 (non-isolated, standard leadframe) and the AOWF360A70 uses TO-262F (fully insulated package with isolation barrier). Their pinouts differ mechanically due to insulation requirements, and thermal resistance values differ significantly (R_θJC = 0.8 °C/W vs. 4.2 °C/W), requiring separate layout and heatsink design for each.

What does "100% UIS tested" mean for the AOW360A70?

"100% UIS tested" means every unit of AOW360A70 undergoes unclamped inductive switching stress test per JEDEC JESD24-11, verifying minimum single-pulse avalanche energy (E_AS) of 5.8 mJ at T_J = 25°C. This ensures robustness against inductive kickback in flyback transformers without external snubbers and guarantees consistent avalanche capability across production lots - a critical reliability marker absent in non-tested MOSFETs.

Can the AOW360A70 replace older 600 V MOSFETs in existing flyback designs?

The AOW360A70 can replace 600 V MOSFETs only if the DC-link voltage remains ≤480 V and layout accommodates its TO-262 footprint and thermal pad. Its 700 V rating provides additional margin against line surges, but its higher V_DS slightly increases Miller capacitance (Cr_ss = 1.7 pF), potentially affecting gate drive timing. Designers must re-validate switching waveforms, EMI, and thermal performance - the AOW360A70 is not a drop-in replacement without system-level verification.

AOW360A70 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 (Tc)

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):: 156W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-262

AOW360A70 FAQ

1.How can I place an order for AOW360A70 through Aetrix?

Please submit a Request for Quotation (RFQ) for AOW360A70 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 AOW360A70 reliable?

The price and inventory of AOW360A70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOW360A70 is usually 5 days.

3.What payment methods are accepted for AOW360A70?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOW360A70 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOW360A70?

AOW360A70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOW360A70 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 AOW360A70?

For technical support, including AOW360A70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOW360A70 requirements.

6.How does Aetrix verify that AOW360A70 is sourced from the original manufacturer or authorized distributors?

All AOW360A70 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 AOW360A70 meets industry standards.

7.What is the process for return or replacement of AOW360A70?

All AOW360A70 units undergo pre-shipment inspection (PSI). If there is an issue with AOW360A70, 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 AOW360A70 part is unused and in its original packaging.

Return procedure for AOW360A70:

1.Submit a request within 90 days.

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

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