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

Alpha & Omega Semiconductor Inc. AOB66613L

Name: AOB66613L
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOB66613L
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOB66613L

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: AOB66613L.pdf

Description:: MOSFET N-CH 60V 44.5A/120A TO263

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Product details

Overview

AOB66613L from Alpha & Omega Semiconductor is a 60V, 120A N-channel Trench Power AlphaSGT™ MOSFET in TO-263 (D2PAK) package, with R_DS(ON) < 2.5 mΩ at V_GS = 10 V and gate charge Q_g = 78–110 nC. It delivers high-frequency switching and synchronous rectification in BLDC motor drives and industrial power supplies.

For engineers reviewing the AOB66613L datasheet, pinout, applications, or equivalent options, key selection criteria include its 60V V_DS, 120A I_D rating at T_C = 100°C, 0.48°C/W R_θJC, 100% UIS-tested ruggedness, and TO-263 thermal performance for high-current DC-DC and motor control designs.

Technical Context

This MOSFET employs AlphaSGT™ trench technology to achieve low R_DS(ON) and optimized gate charge × R_DS(ON) figure-of-merit (FOM), enabling efficient hard-switching up to several hundred kHz. Its body diode exhibits t_rr = 30 ns and Q_rr = 135 nC under IF = 20 A, di/dt = 500 A/μs conditions.

The device is characterized for operation across –55°C to +150°C junction temperature range, with absolute maximum V_GS = ±20 V and avalanche energy rating of 346 mJ (L = 0.3 mH). Thermal design relies on its 0.48°C/W junction-to-case resistance and validated SOA up to 10 ms pulse width at T_C = 25°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60 V - Maximum blocking voltage for 48 V bus systems and industrial DC input stages
I_D (T_C = 100°C)	120 A - Continuous drain current capability with external heatsinking at elevated case temperatures
R_DS(ON) (V_GS = 10 V)	< 2.5 mΩ - Enables <1.8 W conduction loss at 120 A, critical for high-efficiency power stages
Q_g (10 V)	78–110 nC - Gate drive energy requirement directly impacts driver sizing and switching loss trade-off
R_θJC	0.48 °C/W - Junction-to-case thermal resistance enables precise heatsink thermal budgeting
E_AS	346 mJ - Unclamped inductive switching ruggedness supports reliable operation in motor phase-legs
t_r/t_f	21 ns / 13 ns - Fast switching transitions reduce overlap loss in synchronous buck and half-bridge topologies

Pinout & Package

AOB66613L is housed in a surface-mount TO-263 (D2PAK) package with exposed drain pad for enhanced thermal dissipation. The package features three terminals: Drain (D), Gate (G), and Source (S), with Drain connected to the large copper tab on the bottom side.

Pin/Terminal	Circuit Role	Design Meaning
D (Drain)	Main high-side current path terminal	Connected to PCB copper pour for thermal management; electrically tied to package tab
G (Gate)	Control input for channel conduction	Requires low-impedance drive due to Q_g = 78–110 nC; sensitive to ringing without proper layout
S (Source)	Reference node for gate drive and current sensing	Common return for load current and gate driver ground; critical for Kelvin source routing in precision applications

Key Features

Feature	Design Value
Trench Power AlphaSGT™ Technology	Enables sub-2.5 mΩ R_DS(ON) at 60 V while maintaining robust short-circuit withstand time
100% UIS Tested	Guarantees unclamped inductive switching survival up to 346 mJ, eliminating need for external snubbers in motor drives
Low Q_g × R_DS(ON) FOM	Optimizes trade-off between switching speed and conduction loss for high-frequency SMPS and inverters
RoHS and Halogen-Free Compliant	Meets IPC-1752A material declaration requirements for industrial and automotive-qualified supply chains
Body Diode with Low Q_rr	135 nC reverse recovery charge supports ZVS-assisted topologies and reduces diode-induced EMI

Applications

BLDC Motor Inverter Phase Leg	High-Current Synchronous Rectifier
Use Scenario: Three-phase inverter driving 400 W–2 kW brushless DC motors in HVAC blowers and power tools. IC Role / Device Role / Timing Role: High-side and low-side switching element in 6-step commutation, handling peak currents >100 A. Use Value: Sub-2.5 mΩ R_DS(ON) and 100% UIS rating ensure thermal stability and fault resilience during rapid direction reversal and stall events.	Use Scenario: Secondary-side synchronous rectification in 48 V–54 V output, 3 kW telecom rectifiers. IC Role / Device Role / Timing Role: Replaces Schottky diodes in LLC resonant converters operating at 200–500 kHz switching frequency. Use Value: Low Q_g × R_DS(ON) FOM and fast t_r/t_f minimize total power loss while maintaining ZVS boundary conditions.
Industrial DC-DC Buck Converter	UPS Inverter Output Stage
Use Scenario: 12 V–48 V input, 3.3 V/100 A output point-of-load converter for server VRMs and FPGA power delivery. IC Role / Device Role / Timing Role: High-current, low-V_DS switch in multiphase buck topology with active current sharing. Use Value: 0.48°C/W R_θJC allows direct mounting to cold plate, supporting >95% efficiency at full load without forced air.	Use Scenario: 400 V DC bus in-line inverter stage delivering 230 VAC/5 kVA for industrial uninterruptible power supplies. IC Role / Device Role / Timing Role: Half-bridge switching device in three-phase inverter leg, operating with 120° conduction mode. Use Value: 346 mJ E_AS and 120 A I_D rating enable safe operation during grid fault transients and load dump events.

BLDC Motor Inverter Phase Leg

High-Current Synchronous Rectifier

Use Scenario: Three-phase inverter driving 400 W–2 kW brushless DC motors in HVAC blowers and power tools.

IC Role / Device Role / Timing Role: High-side and low-side switching element in 6-step commutation, handling peak currents >100 A.

Use Value: Sub-2.5 mΩ R_DS(ON) and 100% UIS rating ensure thermal stability and fault resilience during rapid direction reversal and stall events.

Use Scenario: Secondary-side synchronous rectification in 48 V–54 V output, 3 kW telecom rectifiers.

IC Role / Device Role / Timing Role: Replaces Schottky diodes in LLC resonant converters operating at 200–500 kHz switching frequency.

Use Value: Low Q_g × R_DS(ON) FOM and fast t_r/t_f minimize total power loss while maintaining ZVS boundary conditions.

Industrial DC-DC Buck Converter

UPS Inverter Output Stage

Use Scenario: 12 V–48 V input, 3.3 V/100 A output point-of-load converter for server VRMs and FPGA power delivery.

IC Role / Device Role / Timing Role: High-current, low-V_DS switch in multiphase buck topology with active current sharing.

Use Value: 0.48°C/W R_θJC allows direct mounting to cold plate, supporting >95% efficiency at full load without forced air.

Use Scenario: 400 V DC bus in-line inverter stage delivering 230 VAC/5 kVA for industrial uninterruptible power supplies.

IC Role / Device Role / Timing Role: Half-bridge switching device in three-phase inverter leg, operating with 120° conduction mode.

Use Value: 346 mJ E_AS and 120 A I_D rating enable safe operation during grid fault transients and load dump events.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF1407PbF	R_DS(ON) = 4.8 mΩ @ 10 V; Q_g = 120 nC; TO-220 package; R_θJC = 0.75°C/W	Higher conduction loss and lower current density; requires larger heatsink for same thermal performance	Preferred where legacy TO-220 footprint compatibility is required and 60 V rating suffices
STL220N6F7	R_DS(ON) = 2.2 mΩ @ 10 V; Q_g = 105 nC; TO-263 package; R_θJC = 0.55°C/W; includes integrated gate resistor	Marginally lower R_DS(ON) but higher thermal resistance; gate resistor limits dV/dt but adds layout inflexibility	Consider when simplified gate drive and marginally better conduction efficiency outweigh thermal penalty

Compared with IRF1407PbF and STL220N6F7, the AOB66613L offers the lowest R_θJC (0.48°C/W) and best FOM among 60 V TO-263 MOSFETs, making it optimal for thermally constrained, high-current synchronous rectification and motor drive applications where board space and heatsink volume are limited.

Availability

AOB66613L is available at Aetrix Electronics and suitable for BLDC motor drives, high-current synchronous rectifiers, industrial DC-DC converters, and UPS inverter output stages requiring stable component supply and long-term production continuity.

Supply support for AOB66613L 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, industrial, and automotive markets.

The AOB66613L belongs to AOS's AlphaSGT™ family-engineered for high-current, high-frequency power conversion with emphasis on R_DS(ON)/Q_g optimization and ruggedness in motor control and server power applications.

FAQ

What is the maximum continuous drain current rating for AOB66613L at T_C = 100°C?

The AOB66613L is rated for 120 A continuous drain current at case temperature T_C = 100°C, as specified in the Absolute Maximum Ratings table. This rating assumes proper PCB copper area and thermal interface to maintain junction temperature ≤150°C. Derating applies above 100°C per Figure 13 in the datasheet.

Does AOB66613L have an integrated Schottky body diode?

No, the AOB66613L uses a standard parasitic body diode inherent to its planar N-channel MOSFET structure. It is not a Schottky or trench-Schottky hybrid device. Its body diode has V_SD = 0.7–1.0 V and Q_rr = 135 nC at I_F = 20 A, di/dt = 500 A/μs-values confirmed in the Electrical Characteristics table on page 2 of the datasheet.

What is the gate threshold voltage range for AOB66613L at T_J = 25°C?

The AOB66613L has a gate threshold voltage V_GS(th) of 2.3 V (min), 2.85 V (typ), and 3.5 V (max) at T_J = 25°C, as listed in the Electrical Characteristics table. At T_J = 125°C, the range shifts to 2.0–3.0 V, confirming positive temperature coefficient behavior typical of AlphaSGT™ devices.

Is AOB66613L suitable for use in zero-voltage switching (ZVS) circuits?

Yes, the AOB66613L supports ZVS operation due to its low C_oss = 1500 pF and fast t_r/t_f (21 ns / 13 ns), which enable efficient resonant turn-on. Its Q_rr = 135 nC and t_rr = 30 ns further reduce switching loss and voltage overshoot during body-diode commutation in LLC and phase-shifted full-bridge topologies.

What is the recommended gate resistor value for AOB66613L in a 200 kHz synchronous buck converter?

A gate resistor of 3–5 Ω is recommended for the AOB66613L in a 200 kHz synchronous buck, balancing switching loss (reduced by faster edges) and EMI/noise (controlled by moderate dV/dt). This aligns with the R_g = 0.4–1.4 Ω specification and typical gate driver output impedance; actual value must be validated with layout parasitics and driver capability per Figure 7 gate-charge curve.

AOB66613L Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: AlphaSGT™

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 44.5A (Ta), 120A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 8V, 10V

Rds On (Max) @ Id, Vgs:: 2.5mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 3.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 110 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 5300 pF @ 30 V

FET Feature:: -

Power Dissipation (Max):: 8.3W (Ta), 260W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263 (D2PAK)

AOB66613L FAQ

1.How can I place an order for AOB66613L through Aetrix?

Please submit a Request for Quotation (RFQ) for AOB66613L 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 AOB66613L reliable?

The price and inventory of AOB66613L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOB66613L is usually 5 days.

3.What payment methods are accepted for AOB66613L?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOB66613L transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOB66613L?

AOB66613L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOB66613L 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 AOB66613L?

For technical support, including AOB66613L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOB66613L requirements.

6.How does Aetrix verify that AOB66613L is sourced from the original manufacturer or authorized distributors?

All AOB66613L 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 AOB66613L meets industry standards.

7.What is the process for return or replacement of AOB66613L?

All AOB66613L units undergo pre-shipment inspection (PSI). If there is an issue with AOB66613L, 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 AOB66613L part is unused and in its original packaging.

Return procedure for AOB66613L:

1.Submit a request within 90 days.

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

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