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

Alpha & Omega Semiconductor Inc. AOTF360A70L

Name: AOTF360A70L
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOTF360A70L
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOTF360A70L

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: TO-220-3 Full Pack

Datasheet:: AOTF360A70L.pdf

Description:: MOSFET N-CH 700V 12A TO220F

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Product details

Overview

AOTF360A70L from Alpha & Omega Semiconductor is a 700 V, 48 A N-channel MOSFET in TO-220F package with R_DS(ON) < 0.36 Ω at V_GS = 10 V, Q_g = 22.5 nC, and E_oss = 2.8 mJ @ 400 V - designed for high-voltage flyback SMPS in PD adapters and lighting systems.

For engineers reviewing the AOTF360A70L datasheet, pinout, applications, or equivalent options, key selection criteria include avalanche ruggedness (100% UIS tested), gate resistance validation (100% R_g tested), thermal impedance (R_θJC = 4.2 °C/W), and body-diode reverse recovery performance (t_rr = 310 ns, Q_rr = 4.8 mC).

Technical Context

This MOSFET 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. Its enhanced body diode delivers V_SD = 0.86–1.2 V and I_RM = 24.5 A under reverse recovery conditions.

The device supports repetitive avalanche operation (E_AS = 50 mJ) and single-pulse avalanche (E_AR = 100 mJ) with guaranteed 100% UIS testing. Thermal design is enabled by validated transient junction-to-case impedance (Z_θJC) curves per Figure 14 and R_θJC = 4.2 °C/W at T_C = 25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	700 V - rated blocking voltage for primary-side switching in 400–600 V DC bus applications
R_DS(ON)	< 0.36 Ω @ V_GS = 10 V - enables low conduction loss in continuous 6–12 A load ranges
Q_g	22.5 nC - determines gate drive power requirement and influences EMI behavior in hard-switched topologies
E_oss	2.8 mJ @ 400 V - quantifies output capacitance energy loss during turn-on, critical for ZVS feasibility
t_rr/Q_rr	310 ns / 4.8 mC - defines body-diode recovery stress during synchronous rectification or freewheeling
R_θJC	4.2 °C/W - enables direct heatsink mounting with predictable junction temperature rise under 156 W P_D
BVDSS tempco	0.6 V/°C - ensures stable breakdown margin across –55 to +150 °C operating range

Pinout & Package

Package: TO-220F (full-pack, insulated tab), thermally enhanced variant of TO-220 with isolated metal tab for direct heatsink mounting without insulator.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate	Control terminal requiring 10 V threshold (V_GS(th) = 3.4–4.6 V); R_g = 2 Ω verified per unit
D	Drain	High-side switching node; rated for 700 V blocking and 48 A pulsed current (I_DM)
S	Source	Power return path and reference for gate drive; connects to PCB ground plane or source resistor

Key Features

Feature	Design Value
aMOS5™ process technology	Enables <0.36 Ω R_DS(ON) at 700 V while maintaining robust SOA and avalanche capability
100% UIS tested	Guarantees unclamped inductive switching survival up to E_AS = 50 mJ, eliminating field failure risk in flyback snubberless designs
Enhanced body diode	Reduces t_rr to 310 ns and Q_rr to 4.8 mC versus legacy 700 V MOSFETs, lowering diode-induced switching loss
Optimized switching parameters	C_rss/C_iss ratio of 0.00125 suppresses dv/dt-induced false turn-on and improves EMI profile
Thermal reliability	R_θJC = 4.2 °C/W and validated Z_θJC transients support stable thermal management in sealed adapter enclosures

Applications

USB-C PD Adapters	Flyback SMPS for LED Lighting
Use Scenario: Primary-side switch in 65–100 W USB-C PD adapters operating at 65–130 kHz with quasi-resonant control. IC Role / Device Role: High-voltage power switch handling 400 V DC input, delivering regulated 20 V output via transformer isolation. Use Value: Low R_DS(ON) reduces conduction loss at full load; 100% UIS rating eliminates need for external clamping in cost-sensitive compact designs.	Use Scenario: Primary-side switch in constant-current LED drivers for commercial downlights and streetlights. IC Role / Device Role: Main switching element in discontinuous conduction mode (DCM) flyback converting 300–400 V DC bus to 36–72 V LED string supply. Use Value: Fast body-diode recovery (t_rr = 310 ns) minimizes cross-conduction loss during boundary-mode transitions, improving efficiency above 90%.
TV Power Supplies	Industrial AC-DC Modules
Use Scenario: Main switch in auxiliary and main power supplies for 4K/8K smart TVs with multi-rail outputs (5 V, 12 V, 24 V). IC Role / Device Role: High-reliability primary-side transistor supporting wide input (90–264 V AC) and meeting IEC 62368-1 surge requirements. Use Value: 800 V BVDSS headroom and 150 °C T_J(max) ensure long-term stability under line surges and ambient temperatures up to 70 °C.	Use Scenario: Primary switch in industrial AC-DC modules rated for 240 W with extended lifetime (>10 years) and -40 to +85 °C operation. IC Role / Device Role: Robust power transistor in enclosed, convection-cooled enclosures where thermal margin is constrained. Use Value: Validated Z_θJC transient curves and R_θJC = 4.2 °C/W allow accurate junction temperature prediction without derating assumptions.

USB-C PD Adapters

Flyback SMPS for LED Lighting

Use Scenario: Primary-side switch in 65–100 W USB-C PD adapters operating at 65–130 kHz with quasi-resonant control.

IC Role / Device Role: High-voltage power switch handling 400 V DC input, delivering regulated 20 V output via transformer isolation.

Use Value: Low R_DS(ON) reduces conduction loss at full load; 100% UIS rating eliminates need for external clamping in cost-sensitive compact designs.

Use Scenario: Primary-side switch in constant-current LED drivers for commercial downlights and streetlights.

IC Role / Device Role: Main switching element in discontinuous conduction mode (DCM) flyback converting 300–400 V DC bus to 36–72 V LED string supply.

Use Value: Fast body-diode recovery (t_rr = 310 ns) minimizes cross-conduction loss during boundary-mode transitions, improving efficiency above 90%.

TV Power Supplies

Industrial AC-DC Modules

Use Scenario: Main switch in auxiliary and main power supplies for 4K/8K smart TVs with multi-rail outputs (5 V, 12 V, 24 V).

IC Role / Device Role: High-reliability primary-side transistor supporting wide input (90–264 V AC) and meeting IEC 62368-1 surge requirements.

Use Value: 800 V BVDSS headroom and 150 °C T_J(max) ensure long-term stability under line surges and ambient temperatures up to 70 °C.

Use Scenario: Primary switch in industrial AC-DC modules rated for 240 W with extended lifetime (>10 years) and -40 to +85 °C operation.

IC Role / Device Role: Robust power transistor in enclosed, convection-cooled enclosures where thermal margin is constrained.

Use Value: Validated Z_θJC transient curves and R_θJC = 4.2 °C/W allow accurate junction temperature prediction without derating assumptions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP7NK70ZFP	700 V, R_DS(ON) = 0.65 Ω, Q_g = 28 nC, TO-220FP package, no 100% UIS test guarantee	Higher conduction loss limits use to ≤40 W; slower switching increases EMI filtering burden	Select when cost sensitivity outweighs efficiency and ruggedness requirements
IPP60R190C7	650 V, R_DS(ON) = 0.19 Ω, Q_g = 27 nC, TO-220 package, superjunction architecture	Lower voltage rating requires derating for 400 V DC bus; superior R_DS(ON) only beneficial below 300 V	Prefer for 300 V nominal inputs where lower R_DS(ON) justifies reduced voltage margin

Compared with STP7NK70ZFP and IPP60R190C7, the AOTF360A70L provides optimal balance of 700 V rating, sub-0.36 Ω on-resistance, and factory-validated UIS robustness - making it uniquely suited for compact, high-reliability flyback converters where both voltage headroom and thermal predictability are critical.

Availability

AOTF360A70L is available at Aetrix Electronics and suitable for USB-C PD adapters, LED lighting drivers, and TV power supplies requiring stable component supply, consistent parametric performance, and long-lifecycle availability.

Supply support for AOTF360A70L 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 AOTF360A70L belongs to AOS's 700 V aMOS5™ MOSFET family, engineered specifically for high-density, high-reliability flyback and resonant converters where avalanche ruggedness, low gate charge, and thermal predictability are mandatory.

FAQ

What is the maximum continuous drain current rating for AOTF360A70L at 100°C case temperature?

The AOTF360A70L has a continuous drain current rating of 7.6 A at T_C = 100 °C, derived from its 48 A pulsed rating and thermal derating curve (Figure 10). This value reflects safe operation under sustained conduction with adequate heatsinking, and is confirmed by the device's R_θJC = 4.2 °C/W and P_D = 156 W at T_C = 25 °C. The AOTF360A70L must be mounted to a heatsink capable of maintaining T_C ≤ 100 °C to sustain this current.

Does AOTF360A70L support gate drive with ±20 V voltage range?

Yes, the AOTF360A70L supports gate-source voltage from –20 V to +20 V per Absolute Maximum Ratings, with dynamic gate voltage (AC, f > 1 Hz) specified at ±30 V. This allows robust gate driving with standard 12 V or 15 V controllers and tolerance for transient overshoot. The AOTF360A70L gate threshold voltage is 3.4–4.6 V, ensuring reliable turn-on with 10 V gate drive while avoiding unintended conduction from noise.

How is the avalanche capability of AOTF360A70L verified in production?

The AOTF360A70L undergoes 100% unclamped inductive switching (UIS) testing per production lot, validating E_AS = 50 mJ (repetitive) and E_AR = 100 mJ (single-pulse) at T_J = 25 °C. This test uses standardized circuit conditions (L = 60 mH, I_AS = 1.3 A, R_G = 25 Ω) and is documented in the datasheet's Note G. Each AOTF360A70L unit is marked and certified for this ruggedness level.

What is the body-diode forward voltage of AOTF360A70L at 6 A and 25°C?

The body-diode forward voltage (V_SD) of the AOTF360A70L is 0.86–1.2 V at I_S = 6 A and T_J = 25 °C, as specified in the Electrical Characteristics table. This low V_SD range contributes to reduced conduction loss during freewheeling phases in flyback and buck-derived topologies. The AOTF360A70L's enhanced body diode also exhibits t_rr = 310 ns and Q_rr = 4.8 mC, enabling efficient reverse recovery.

Is AOTF360A70L compatible with lead-free reflow soldering processes?

Yes, the AOTF360A70L is qualified for lead-free reflow soldering with a maximum lead temperature of 300 °C for 5 seconds at 1/8" from the case, per JEDEC J-STD-020. Its TO-220F Green package meets RoHS and REACH requirements. The AOTF360A70L's thermal characteristics (R_θJC = 4.2 °C/W, T_J(max) = 150 °C) remain valid post-reflow, and no special pre-conditioning is required before assembly.

AOTF360A70L Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: aMOS5™

Package/Case:: TO-220-3 Full Pack

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-220F

AOTF360A70L FAQ

1.How can I place an order for AOTF360A70L through Aetrix?

Please submit a Request for Quotation (RFQ) for AOTF360A70L 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 AOTF360A70L reliable?

The price and inventory of AOTF360A70L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOTF360A70L is usually 5 days.

3.What payment methods are accepted for AOTF360A70L?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOTF360A70L transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOTF360A70L?

AOTF360A70L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOTF360A70L 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 AOTF360A70L?

For technical support, including AOTF360A70L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOTF360A70L requirements.

6.How does Aetrix verify that AOTF360A70L is sourced from the original manufacturer or authorized distributors?

All AOTF360A70L 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 AOTF360A70L meets industry standards.

7.What is the process for return or replacement of AOTF360A70L?

All AOTF360A70L units undergo pre-shipment inspection (PSI). If there is an issue with AOTF360A70L, 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 AOTF360A70L part is unused and in its original packaging.

Return procedure for AOTF360A70L:

1.Submit a request within 90 days.

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

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