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Alpha & Omega Semiconductor Inc. AOI4C60
- Part No.:
- AOI4C60
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- FETs, MOSFETs
- Package:
- TO-251-3 Stub Leads, IPAK
- Datasheet:
-
AOI4C60.pdf
- Description:
- MOSFET N-CH 600V 4A TO251A
- Quantity:
- Payment:
- Shipping:
Inventory:6,984
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Product details
Overview
AOI4C60 from Alpha & Omega Semiconductor is a 600V, 4A N-channel enhancement-mode MOSFET in TO-251A (IPAK) package, featuring RDS(ON) ≤ 0.95Ω at VGS = 10V, 14nC typical gate charge, and 100% UIS-tested ruggedness. It serves as a primary switching device in offline AC-DC power supplies, PFC stages, and auxiliary power converters operating up to 150°C junction temperature.
For engineers reviewing the AOI4C60 datasheet, pinout, applications, or equivalent options, key selection criteria include its guaranteed avalanche energy (326mJ), low Ciss (910pF) and Crss (1.8pF), thermal resistance RθJC = 1°C/W, and validated dv/dt ruggedness (100V/ns) for high-noise industrial SMPS designs.
Technical Context
The AOI4C60 employs Alpha & Omega's advanced high-voltage trench-gate process optimized for fast switching and robust unclamped inductive switching (UIS) performance. Its 700V VDS rating at TJ = 150°C ensures margin in 400V DC bus applications, while low Qgd/Qg ratio (2.9nC/14nC) supports clean turn-off in hard-switched topologies.
Designed specifically for consumer-grade offline power conversion, the AOI4C60 integrates a body diode with trr = 295ns and Qrr = 3.6µC at IF = 4A, dI/dt = 100A/µs - enabling reliable operation in discontinuous conduction mode (DCM) flyback and LLC resonant converters without external snubbing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 600V maximum - supports 400V AC input rectified to ~560V DC with safety margin for surge and ringing. |
| RDS(ON) | ≤ 0.95Ω at VGS = 10V, TJ = 25°C - enables <1.5W conduction loss at 4A continuous current in compact layouts. |
| Qg | 14nC typical - reduces gate drive power and allows use of low-cost bipolar or CMOS drivers in <100kHz designs. |
| EAS | 326mJ single-pulse - eliminates need for external clamping in transformer-coupled or inductive load switching. |
| RθJC | 1°C/W - enables direct heatsink mounting for >3W dissipation without thermal derating below 100°C case temperature. |
| tr/tf | 21ns/19ns - supports efficient hard-switching at 65–100kHz with minimal switching loss and EMI generation. |
| VGS(th) | 3–5V - ensures reliable turn-on with standard 5V or 3.3V logic-level controllers without level-shifting. |
Pinout & Package
AOI4C60 is housed in a TO-251A (IPAK) surface-mount package with gull-wing leads, optimized for automated assembly and thermal transfer via exposed drain pad on bottom side. The package provides mechanical compatibility with TO-252 footprints but uses a single leadframe tab for simplified PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G | Gate | Control terminal accepting 10V logic-level drive; 4.2Ω internal gate resistance limits ringing and simplifies driver design. |
| D | Drain | Main high-side switching node connected to drain metallization; electrically tied to exposed pad for low-inductance heat path. |
| S | Source | Power return reference for gate drive and load current; connects to ground plane or low-side switch source node. |
Key Features
| Feature | Design Value |
|---|---|
| 100% UIS tested | Guarantees single-pulse avalanche energy ≥326mJ - eliminates qualification testing for inductive load transients in production designs. |
| Low Crss (1.8pF) | Minimizes Miller-induced false turn-on during high dv/dt switching - critical for half-bridge and synchronous rectifier reliability. |
| Body diode trr = 295ns | Enables clean zero-current switching in DCM flyback without reverse recovery spikes or secondary-side voltage overshoot. |
| RθJC = 1°C/W | Allows direct thermal interface to heatsink or copper pour - achieves 3.5W continuous power dissipation at TC = 100°C. |
| VDS tempco = 0.57V/°C | Provides predictable breakdown voltage shift over temperature - simplifies overvoltage protection threshold setting across -50°C to 150°C range. |
Applications
| AC-DC Adapter Power Supply | LED Driver Primary Switch |
|---|---|
|
Use Scenario: 12W–24W universal-input (90–264V AC) flyback converter powering USB-C PD adapters. IC Role / Device Role: Main power switch operating in DCM at 65kHz, driven by PWM controller with integrated gate driver. Use Value: Low Qg and RDS(ON) reduce no-load consumption and improve full-load efficiency to >85%, meeting DOE VI requirements. |
Use Scenario: Constant-current LED driver for commercial downlights using quasi-resonant flyback topology. IC Role / Device Role: High-side switch controlling primary winding current with valley-switching control. Use Value: Guaranteed UIS and low Coss enable stable QR operation across line/load variations without snubber losses. |
| Industrial Auxiliary Power Supply | Smart Home Appliance SMPS |
|
Use Scenario: 5V/1A isolated auxiliary supply for PLC I/O modules, powered from 24V DC bus with wide-temp operation. IC Role / Device Role: Secondary-side synchronous rectifier replacement in forward converter, or primary switch in self-oscillating topology. Use Value: 150°C max junction rating and 100% Rg test ensure long-term reliability under sustained 70°C ambient industrial conditions. |
Use Scenario: Compact 9V/0.5A standby power supply inside Wi-Fi-enabled HVAC controllers and smart thermostats. IC Role / Device Role: Primary-side switch in low-component-count buck-derived topology with integrated controller. Use Value: TO-251A footprint enables <8mm² board area; low leakage (IDSS ≤ 1µA at 600V) minimizes standby power draw below 30mW. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel MOSFET switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP4NK60ZFP | 600V/4A, RDS(ON) = 1.2Ω, Qg = 12nC, TO-220FP package | Higher RDS(ON) increases conduction loss; through-hole mounting requires larger PCB area and manual assembly. | Preferred where legacy TO-220FP footprint is fixed and thermal mass compensates for higher on-resistance. |
| IRFRC20 | 600V/2.4A, RDS(ON) = 1.5Ω, Qg = 11nC, TO-220 package | Lower current rating and higher RDS(ON) limit usable power range; lacks UIS rating and 100% Rg test. | Suitable only for low-power (<8W), non-critical applications where cost is primary constraint and avalanche stress is absent. |
Compared with STP4NK60ZFP and IRFRC20, the AOI4C60 delivers superior thermal performance (RθJC = 1°C/W vs. ~2.5°C/W), lower conduction loss, and verified ruggedness - making it optimal for space-constrained, high-reliability AC-DC designs requiring consistent avalanche immunity.
Availability
AOI4C60 is available at Aetrix Electronics and suitable for AC-DC adapter power supplies, LED driver primary switches, and industrial auxiliary power supplies requiring stable component supply, full traceability, and lifecycle continuity support.
Supply support for AOI4C60 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 AOI4C60 belongs to AOS's high-voltage "4C" series designed explicitly for cost-sensitive, high-volume offline power conversion - balancing ruggedness, efficiency, and manufacturability in TO-251A packaging.
FAQ
What is the maximum continuous drain current rating for AOI4C60 at 100°C case temperature?
The AOI4C60 supports 3.5A continuous drain current at TC = 100°C, as specified in its Absolute Maximum Ratings table. This derated value accounts for thermal limitations in real-world heatsink-mounted configurations and ensures safe operation within the 150°C maximum junction temperature limit. Designers must verify PCB copper area and airflow to maintain TC ≤ 100°C when operating AOI4C60 at this current level.
Does AOI4C60 support logic-level gate drive?
Yes, AOI4C60 has a gate threshold voltage (VGS(th)) of 3–5V and fully enhances at VGS = 10V, making it compatible with standard 5V microcontroller outputs and dedicated gate drivers like the UCC27531. Its 4.2Ω internal gate resistance further stabilizes switching behavior without requiring external gate resistors in most low-frequency (<100kHz) applications.
Is AOI4C60 suitable for use in automotive applications?
No, AOI4C60 is explicitly qualified for the consumer market only and is not AEC-Q101 qualified. Its datasheet states that applications in life-support devices or systems are unauthorized, and AOS disclaims liability for such uses. For automotive-grade alternatives, designers should select AOS's AUIRF series or other AEC-Q101-compliant MOSFETs with extended temperature and reliability validation.
What is the significance of the 100% UIS test for AOI4C60?
The 100% UIS (Unclamped Inductive Switching) test certifies that every AOI4C60 unit can withstand a single-pulse avalanche energy of at least 326mJ without failure. This ensures robustness against inductive kickback in flyback, forward, and LLC converters - eliminating the need for external TVS clamps or design margining for worst-case transformer leakage energy in production units.
How does the TO-251A package of AOI4C60 compare thermally to TO-252?
The AOI4C60's TO-251A (IPAK) package offers identical RθJC = 1°C/W as the TO-252 variant (AOD4C60), but with gull-wing leads instead of鸥翼. This maintains thermal performance while enabling smaller PCB footprint and compatibility with standard SMT reflow profiles. Unlike TO-252, TO-251A does not require thermal vias beneath the drain pad, simplifying layout for cost-sensitive consumer designs.
AOI4C60 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Series:
- -
- Package/Case:
- TO-251-3 Stub Leads, IPAK
- Packaging:
- Tube
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 600 V
- Current - Continuous Drain (Id) @ 25°C:
- 4A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 950mOhm @ 1.3A, 10V
- Vgs(th) (Max) @ Id:
- 5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 18 nC @ 10 V
- Vgs (Max):
- ±30V
- Input Capacitance (Ciss) (Max) @ Vds:
- 910 pF @ 100 V
- FET Feature:
- -
- Power Dissipation (Max):
- 125W (Tc)
- Operating Temperature:
- -50°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-251A
AOI4C60 FAQ
1.How can I place an order for AOI4C60 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOI4C60 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 AOI4C60 reliable?
The price and inventory of AOI4C60 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOI4C60 is usually 5 days.
3.What payment methods are accepted for AOI4C60?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOI4C60 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOI4C60?
AOI4C60 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOI4C60 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 AOI4C60?
For technical support, including AOI4C60 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOI4C60 requirements.
6.How does Aetrix verify that AOI4C60 is sourced from the original manufacturer or authorized distributors?
All AOI4C60 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 AOI4C60 meets industry standards.
7.What is the process for return or replacement of AOI4C60?
All AOI4C60 units undergo pre-shipment inspection (PSI). If there is an issue with AOI4C60, 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 AOI4C60 part is unused and in its original packaging.
Return procedure for AOI4C60:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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