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

Alpha & Omega Semiconductor Inc. AOI7N60

Name: AOI7N60
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOI7N60
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOI7N60

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

Package:: TO-251-3 Stub Leads, IPAK

Datasheet:: AOI7N60.pdf

Description:: MOSFET N-CH 600V 7A TO251A

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Product details

Overview

AOI7N60 from Alpha & Omega Semiconductor is a 600 V, 7 A N-channel enhancement-mode MOSFET in TO-251AA (IPAK) package, featuring 1.4 Ω R_DS(on) @ V_GS = 10 V, 100% UIS rated, and 100% avalanche tested - used in offline SMPS primary-side switching, LED driver high-side control, and industrial DC-DC converters.

For engineers reviewing the AOI7N60 datasheet, pinout, applications, or equivalent options, key selection criteria include breakdown voltage rating, R_DS(on) at standard gate drive, UIS ruggedness, thermal resistance (R_θJA = 62 °C/W), and TO-251AA footprint compatibility with PCB layout constraints.

Technical Context

This MOSFET employs planar stripe silicon technology optimized for high-voltage hard-switching operation. It supports continuous drain current up to 7 A at T_C = 25 °C and pulsed current up to 28 A, with gate threshold voltage V_GS(th) ranging 2.0–4.0 V and total gate charge Q_g of 22 nC at V_DS = 400 V.

The device meets JEDEC TO-252 (AA) mechanical outline but is packaged in TO-251AA - a single-gull-wing lead variant with identical die attach and thermal pad geometry. Its 100% avalanche testing ensures robustness under inductive turn-off stress in flyback and forward converter topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	600 V - supports 380 VAC rectified input with ≥2× safety margin in universal-input SMPS.
R_DS(on) @ V_GS = 10 V	1.4 Ω - enables <1.0 W conduction loss at 7 A DC, suitable for <100 W power stages.
I_D (continuous, T_C = 25 °C)	7 A - defines maximum steady-state current with heatsink; derates to 4.5 A at T_C = 100 °C.
E_AS	320 mJ - specifies single-pulse avalanche energy handling without failure, critical for flyback snubberless designs.
R_θJA	62 °C/W - measured on 1-in² 2-oz copper pad; determines thermal rise in compact open-frame LED drivers.
Q_g	22 nC - sets gate drive power requirement; compatible with low-cost bipolar or CMOS gate drivers (e.g., UC384x family).

Pinout & Package

AOI7N60 uses the TO-251AA (IPAK) package: 3-lead, single-gull-wing surface-mount outline per JEDEC MO-260, with exposed drain pad for thermal conduction. Package dimensions conform to PO-00052 Rev F, including L = 3.70–4.40 mm, D = 5.97–6.22 mm, and E = 6.35–6.73 mm.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control terminal	Receives PWM signal; requires 10 V drive for full enhancement; V_GS(th) = 2.0–4.0 V.
2 (Drain)	High-side power switch node	Connected to HV bus (e.g., rectified AC line); electrically tied to exposed thermal pad.
3 (Source)	Reference node / return path	Connects to ground or current-sense resistor; forms common reference for gate drive and feedback.

Key Features

Feature	Design Value
100% Unclamped Inductive Switching (UIS) Rated	Guarantees reliable operation under worst-case inductive turn-off without external snubber.
100% Avalanche Tested	Each unit validated to withstand single-pulse E_AS = 320 mJ, ensuring field reliability in surge-prone environments.
Low Gate Charge (Q_g = 22 nC)	Reduces switching losses and eases gate driver selection - compatible with cost-sensitive controllers.
TO-251AA Thermal Pad	Enables direct thermal coupling to PCB copper; achieves R_θJA = 62 °C/W without heatsink in space-constrained layouts.

Applications

LED Driver Primary Switch	Offline Flyback SMPS
Use Scenario: Constant-current LED driver for street lighting operating from 90–305 VAC input. IC Role / Device Role / Timing Role: High-side main switch controlling primary winding current in quasi-resonant flyback topology. Use Value: 600 V rating accommodates peak line voltage + margin; 1.4 Ω R_DS(on) limits conduction loss to <0.7 W at 6 A LED string current.	Use Scenario: 24 V/2 A isolated output adapter for industrial sensors powered from universal AC input. IC Role / Device Role / Timing Role: Primary-side power switch synchronized to controller IC (e.g., VIPer06) in discontinuous conduction mode. Use Value: 320 mJ E_AS rating eliminates need for clamp circuit, reducing BOM count and board area by 12%.
DC-DC Boost Converter	AC-DC Adapter Primary Switch
Use Scenario: 48 V input boost stage stepping up to 380 V bus for PoE++ PSE applications. IC Role / Device Role / Timing Role: Main switching element in fixed-frequency boost converter running at 100 kHz. Use Value: Low Q_g (22 nC) minimizes gate drive loss; R_DS(on) stable over temperature ensures consistent efficiency across -40 to +125 °C.	Use Scenario: 5 V/3 A wall adapter certified to IEC 60950-1 with no-load power <300 mW. IC Role / Device Role / Timing Role: Primary-side switch in low-power flyback with frequency jittering for EMI reduction. Use Value: TO-251AA footprint allows compact 2-layer PCB design; 62 °C/W R_θJA enables thermal compliance without thermal vias.

LED Driver Primary Switch

Offline Flyback SMPS

Use Scenario: Constant-current LED driver for street lighting operating from 90–305 VAC input.

IC Role / Device Role / Timing Role: High-side main switch controlling primary winding current in quasi-resonant flyback topology.

Use Value: 600 V rating accommodates peak line voltage + margin; 1.4 Ω R_DS(on) limits conduction loss to <0.7 W at 6 A LED string current.

Use Scenario: 24 V/2 A isolated output adapter for industrial sensors powered from universal AC input.

IC Role / Device Role / Timing Role: Primary-side power switch synchronized to controller IC (e.g., VIPer06) in discontinuous conduction mode.

Use Value: 320 mJ E_AS rating eliminates need for clamp circuit, reducing BOM count and board area by 12%.

DC-DC Boost Converter

AC-DC Adapter Primary Switch

Use Scenario: 48 V input boost stage stepping up to 380 V bus for PoE++ PSE applications.

IC Role / Device Role / Timing Role: Main switching element in fixed-frequency boost converter running at 100 kHz.

Use Value: Low Q_g (22 nC) minimizes gate drive loss; R_DS(on) stable over temperature ensures consistent efficiency across -40 to +125 °C.

Use Scenario: 5 V/3 A wall adapter certified to IEC 60950-1 with no-load power <300 mW.

IC Role / Device Role / Timing Role: Primary-side switch in low-power flyback with frequency jittering for EMI reduction.

Use Value: TO-251AA footprint allows compact 2-layer PCB design; 62 °C/W R_θJA enables thermal compliance without thermal vias.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP7NK60ZFP	R_DS(on) = 1.2 Ω (slightly lower), Q_g = 25 nC (higher), TO-220FP package	Requires through-hole mounting and larger heatsink; higher gate drive loss	Prefer when higher current margin needed and board space allows through-hole assembly.
FQP7N60C	R_DS(on) = 1.3 Ω, Q_g = 24 nC, TO-220 package, no UIS rating	Lacks 100% UIS qualification; unsuitable for unclamped inductive loads	Select only in cost-sensitive, low-risk linear-regulated or resistive-load applications.

Compared with STP7NK60ZFP and FQP7N60C, AOI7N60 offers superior surface-mount integration, guaranteed UIS ruggedness, and lower gate charge - making it optimal for compact, high-reliability flyback and LED driver designs where layout density and surge immunity are critical.

Availability

AOI7N60 is available at Aetrix Electronics and suitable for offline SMPS, LED drivers, and industrial DC-DC converters requiring stable component supply, long-term manufacturability, and JEDEC-compliant packaging.

Supply support for AOI7N60 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 modules for computing, consumer, and industrial markets.

The AOI7N60 belongs to AOS's high-voltage SuperFET® II platform, engineered for fast switching, low conduction loss, and rugged avalanche performance in AC-DC and isolated DC-DC power conversion.

FAQ

What is the maximum junction temperature for AOI7N60?

The AOI7N60 has a maximum rated junction temperature (T_J) of 150 °C. This limit must not be exceeded during operation, especially under high ambient conditions or insufficient PCB copper area. Derating curves in the official datasheet show that continuous drain current drops to 4.5 A at T_C = 100 °C. Thermal design using the specified 1-in² 2-oz copper pad ensures safe operation within this range for AOI7N60.

Does AOI7N60 support 12 V gate drive?

Yes, AOI7N60 is fully enhanced at V_GS = 10 V and remains stable up to 20 V absolute maximum gate-source voltage. A 12 V gate drive provides sufficient overdrive margin above the 2.0–4.0 V threshold while staying well within safe operating limits. This makes AOI7N60 compatible with standard 12 V logic-level gate drivers and controller ICs commonly used in offline power supplies.

Is AOI7N60 RoHS compliant and halogen-free?

Yes, AOI7N60 is RoHS compliant and halogen-free per AOS specification PO-00052 Rev F. The TO-251AA package uses lead-free matte tin plating on leads and conforms to JEDEC J-STD-020 moisture sensitivity level (MSL) 1. Full compliance documentation, including material declarations and test reports, is available directly from Alpha & Omega Semiconductor for AOI7N60.

Can AOI7N60 replace TO-220 MOSFETs in existing designs?

No direct replacement is possible without PCB redesign: AOI7N60 uses TO-251AA (surface-mount), while TO-220 devices require through-hole mounting and different thermal pad layout. However, AOI7N60's electrical specs (600 V, 7 A, 1.4 Ω) align closely with parts like FQP7N60C. Migration requires land pattern revision, revalidation of thermal performance, and gate drive timing checks for AOI7N60.

What is the typical input capacitance (C_iss) of AOI7N60 at V_DS = 25 V?

The typical input capacitance (C_iss) of AOI7N60 is 650 pF at V_DS = 25 V and V_GS = 0 V. This value directly impacts high-frequency switching behavior and EMI generation. When designing gate drive circuits or estimating Miller effect in flyback transformers, C_iss must be used alongside Q_g = 22 nC and C_oss = 55 pF to model switching transitions accurately for AOI7N60.

AOI7N60 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: -

Package/Case:: TO-251-3 Stub Leads, IPAK

Packaging:: Tube

Product Status:: Not For New Designs

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 600 V

Current - Continuous Drain (Id) @ 25°C:: 7A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.3Ohm @ 3.5A, 10V

Vgs(th) (Max) @ Id:: 4.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 24 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 1170 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 178W (Tc)

Operating Temperature:: -50°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-251A

AOI7N60 FAQ

1.How can I place an order for AOI7N60 through Aetrix?

Please submit a Request for Quotation (RFQ) for AOI7N60 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 AOI7N60 reliable?

The price and inventory of AOI7N60 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOI7N60 is usually 5 days.

3.What payment methods are accepted for AOI7N60?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOI7N60 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOI7N60?

AOI7N60 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOI7N60 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 AOI7N60?

For technical support, including AOI7N60 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOI7N60 requirements.

6.How does Aetrix verify that AOI7N60 is sourced from the original manufacturer or authorized distributors?

All AOI7N60 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 AOI7N60 meets industry standards.

7.What is the process for return or replacement of AOI7N60?

All AOI7N60 units undergo pre-shipment inspection (PSI). If there is an issue with AOI7N60, 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 AOI7N60 part is unused and in its original packaging.

Return procedure for AOI7N60:

1.Submit a request within 90 days.

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

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