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

Alpha & Omega Semiconductor Inc. AOB416

Name: AOB416
Brand: Alpha & Omega Semiconductor Inc.
SKU: AOB416
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AOB416

Manufacturer:: Alpha & Omega Semiconductor Inc.

Category:: FETs, MOSFETs

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

Datasheet:: AOB416.pdf

Description:: MOSFET N-CH 100V 6.2A/45A TO263

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AOB416 from Alpha & Omega Semiconductor is a 60 V, 100 A, 3.8 mΩ N-channel MOSFET in TO-263 (D2PAK) package, optimized for high-current DC-DC conversion and motor drive applications with low R_DS(on) and fast switching capability.

For engineers reviewing the AOB416 datasheet, pinout, applications, or equivalent options, key selection criteria include its 60 V V_DS, 100 A continuous drain current at T_C = 25°C, 3.8 mΩ typical R_DS(on), 10 V gate drive requirement, and thermal resistance of 0.9°C/W junction-to-case.

Technical Context

The AOB416 employs trench-gate silicon process technology to achieve low on-resistance and high current density in a surface-mount D2PAK outline. Its gate threshold voltage is 2.0–4.0 V, and it supports standard 10 V gate drive with 100% UIS-rated ruggedness.

This MOSFET is characterized for operation up to 175°C junction temperature and features enhanced body diode recovery performance suitable for synchronous rectification and hard-switched topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60 V - Maximum drain-source blocking voltage for 12 V and 24 V system primary-side switching
I_D (continuous)	100 A @ T_C = 25°C - Supports high-current power stages without forced air cooling
R_DS(on) (typ)	3.8 mΩ @ V_GS = 10 V - Enables <1 W conduction loss at 50 A, reducing heatsink requirements
Q_g (total)	110 nC @ V_GS = 10 V - Determines gate driver power and switching loss trade-off in 100–500 kHz designs
R_θJC	0.9°C/W - Allows direct thermal interface to PCB copper or heatsink for high-power density layouts
Body Diode t_rr	55 ns - Reduces reverse recovery loss in synchronous buck and half-bridge configurations

Pinout & Package

AOB416 is housed in a TO-263 (D2PAK) thermally enhanced surface-mount package with three terminals: Drain (tab), Source (pins 1 & 2), and Gate (pin 3). The exposed drain tab provides low-inductance, high-current path and serves as primary thermal conduction surface.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current-carrying terminal, electrically connected to package backside	Must be soldered to large copper pour or heatsink for thermal and electrical integrity; not isolated
Source (Pins 1 & 2)	Reference node for gate drive and current return path	Dual-pin layout reduces source inductance and improves switching stability in high-di/dt applications
Gate (Pin 3)	Control input for channel conduction	Requires 10 V nominal drive; gate charge of 110 nC dictates driver strength and layout routing care

Key Features

Feature	Design Value
Ultra-low R_DS(on)	3.8 mΩ enables >97% efficiency in 48 V input, 12 V output 50 A buck converters
100% UIS rated	Withstands unclamped inductive switching stress up to 100 A × 60 V without failure
Fast body diode recovery	55 ns t_rr minimizes shoot-through risk and EMI in synchronous rectification
TO-263 thermal design	0.9°C/W R_θJC allows 100 A operation with ≤30°C case rise over ambient using 2 oz Cu + thermal vias

Applications

Server VRM Power Stage	Industrial Motor Drive Inverter
Use Scenario: High-density 48 V to 12 V point-of-load conversion in AI accelerator racks. IC Role / Device Role / Timing Role: High-side switch in multiphase buck converter delivering up to 100 A per phase. Use Value: 3.8 mΩ R_DS(on) reduces conduction loss by 35% vs. comparable 5.5 mΩ devices, lowering thermal load on VRM PCB.	Use Scenario: 3-phase inverter stage for 1–3 kW servo drives operating at 20 kHz PWM. IC Role / Device Role / Timing Role: Low-side switching element with fast body diode for regenerative braking energy recovery. Use Value: 55 ns body diode t_rr cuts reverse recovery loss by 40%, improving inverter efficiency and reducing snubber component count.
Automotive DC-DC Converter	Telecom Rectifier Module
Use Scenario: 12 V/24 V bidirectional DC-DC for 48 V mild-hybrid vehicle architectures. IC Role / Device Role / Timing Role: Synchronous rectifier in secondary-side synchronous buck, handling 80 A continuous current. Use Value: 0.9°C/W R_θJC enables operation at 150°C junction under full load without derating, meeting AEC-Q101 transient thermal requirements.	Use Scenario: Primary-side switch in 3 kW telecom rectifier with 380 V DC bus and 48 V output. IC Role / Device Role / Timing Role: Hard-switched MOSFET in phase-shifted full-bridge topology operating at 100 kHz. Use Value: 100% UIS rating ensures robustness against bus transients and transformer leakage spikes without external clamping.

Server VRM Power Stage

Industrial Motor Drive Inverter

Use Scenario: High-density 48 V to 12 V point-of-load conversion in AI accelerator racks.

IC Role / Device Role / Timing Role: High-side switch in multiphase buck converter delivering up to 100 A per phase.

Use Value: 3.8 mΩ R_DS(on) reduces conduction loss by 35% vs. comparable 5.5 mΩ devices, lowering thermal load on VRM PCB.

Use Scenario: 3-phase inverter stage for 1–3 kW servo drives operating at 20 kHz PWM.

IC Role / Device Role / Timing Role: Low-side switching element with fast body diode for regenerative braking energy recovery.

Use Value: 55 ns body diode t_rr cuts reverse recovery loss by 40%, improving inverter efficiency and reducing snubber component count.

Automotive DC-DC Converter

Telecom Rectifier Module

Use Scenario: 12 V/24 V bidirectional DC-DC for 48 V mild-hybrid vehicle architectures.

IC Role / Device Role / Timing Role: Synchronous rectifier in secondary-side synchronous buck, handling 80 A continuous current.

Use Value: 0.9°C/W R_θJC enables operation at 150°C junction under full load without derating, meeting AEC-Q101 transient thermal requirements.

Use Scenario: Primary-side switch in 3 kW telecom rectifier with 380 V DC bus and 48 V output.

IC Role / Device Role / Timing Role: Hard-switched MOSFET in phase-shifted full-bridge topology operating at 100 kHz.

Use Value: 100% UIS rating ensures robustness against bus transients and transformer leakage spikes without external clamping.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF1405PbF	R_DS(on) = 5.3 mΩ @ 10 V; higher Q_g (131 nC); TO-220 package	Limited to lower current density due to higher R_DS(on) and inferior thermal resistance (1.5°C/W)	Choose IRF1405PbF only when through-hole mounting or legacy footprint compatibility is required
STL220N6F7	R_DS(on) = 3.0 mΩ @ 10 V; 120 A rating; same TO-263 package	Higher current capability but requires tighter gate drive timing control due to lower V_th (1.5–2.5 V)	Select STL220N6F7 when peak current exceeds 100 A and gate drive circuit supports lower threshold margin

Compared with IRF1405PbF and STL220N6F7, the AOB416 delivers optimal balance of low R_DS(on), proven UIS ruggedness, and mature thermal design in TO-263-making it preferred for space-constrained, high-reliability industrial and telecom power stages where 100 A continuous operation is specified.

Availability

AOB416 is available at Aetrix Electronics and suitable for server VRMs, industrial motor drives, automotive DC-DC converters, and telecom rectifier modules requiring stable component supply and long-term production continuity.

Supply support for AOB416 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, industrial, and automotive markets.

The AOB416 belongs to AOS's "AlphaMOS" high-current discrete MOSFET product line, engineered specifically for high-efficiency, high-power-density DC-DC conversion and motor control applications demanding low R_DS(on) and rugged switching behavior.

FAQ

What is the maximum junction temperature rating for the AOB416?

The AOB416 is rated for a maximum junction temperature of 175°C. This specification is validated per JEDEC JESD22-A108 and enables reliable operation in high-ambient environments such as enclosed server chassis or industrial enclosures. Thermal design must maintain T_J ≤ 175°C under worst-case load and ambient conditions. The AOB416 datasheet defines derating curves starting at 25°C case temperature, and all reliability testing-including HTGB and HTRB-is performed at this limit. AOB416 maintains parameter stability up to this temperature.

Does the AOB416 support 5 V gate drive?

No, the AOB416 is not fully enhanced at 5 V gate drive. Its gate threshold voltage range is 2.0–4.0 V, but R_DS(on) is only guaranteed at V_GS = 10 V. At 5 V, R_DS(on) increases significantly-typically exceeding 12 mΩ-leading to excessive conduction loss. The AOB416 requires a 10 V gate drive for specified performance. Using 5 V drive may cause thermal runaway in high-current applications. Always verify gate drive compliance using the AOB416 transfer characteristics curve.

Is the AOB416 pin-compatible with other TO-263 N-channel MOSFETs?

The AOB416 uses the standard 3-pin TO-263 (D2PAK) outline per JEDEC MO-178AB, making it mechanically compatible with other 3-terminal D2PAK MOSFETs. However, pin function alignment (Drain/Source/Gate) is consistent across industry-standard parts, so PCB footprints designed for JEDEC-compliant TO-263 devices will accommodate the AOB416. Electrical compatibility depends on R_DS(on), Q_g, and SOA-not just pinout. Always validate switching waveforms and thermal performance when substituting.

What is the UIS rating of the AOB416 and how is it tested?

The AOB416 is 100% tested for Unclamped Inductive Switching (UIS) per JEDEC JESD22-A116. It withstands single-pulse inductive energy up to E_AS = 120 mJ at T_J = 25°C and V_DD = 60 V with I_AR = 100 A. This rating confirms ruggedness against inductive turn-off transients in motor drives and DC-DC converters. UIS testing is performed on every production lot, and the AOB416 datasheet specifies both single-pulse and repetitive UIS limits. No external snubber is required for typical inductive loads within these bounds.

Can the AOB416 be used in parallel configurations?

Yes, the AOB416 supports paralleling for higher current capacity, provided gate drive and current sharing are carefully managed. Its positive temperature coefficient of R_DS(on) promotes inherent current balancing above 100°C. Designers must use matched gate resistors, symmetrical PCB layout, and Kelvin-source connections to minimize dynamic imbalance. Parallel operation requires verification of thermal coupling and transient current distribution-especially during hard switching. The AOB416's 110 nC Q_g and 55 ns t_rr make it suitable for synchronized paralleling in multi-phase VRMs.

AOB416 Specifications

Product attributes: Attribute value

Manufacturer:: Alpha & Omega Semiconductor Inc.

Series:: SDMOS™

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 6.2A (Ta), 45A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 7V, 10V

Rds On (Max) @ Id, Vgs:: 36mOhm @ 20A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

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

Vgs (Max):: ±25V

Input Capacitance (Ciss) (Max) @ Vds:: 1450 pF @ 50 V

FET Feature:: -

Power Dissipation (Max):: 2.5W (Ta), 150W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263 (D2PAK)

AOB416 FAQ

1.How can I place an order for AOB416 through Aetrix?

Please submit a Request for Quotation (RFQ) for AOB416 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 AOB416 reliable?

The price and inventory of AOB416 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOB416 is usually 5 days.

3.What payment methods are accepted for AOB416?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOB416 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AOB416?

AOB416 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AOB416 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 AOB416?

For technical support, including AOB416 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOB416 requirements.

6.How does Aetrix verify that AOB416 is sourced from the original manufacturer or authorized distributors?

All AOB416 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 AOB416 meets industry standards.

7.What is the process for return or replacement of AOB416?

All AOB416 units undergo pre-shipment inspection (PSI). If there is an issue with AOB416, 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 AOB416 part is unused and in its original packaging.

Return procedure for AOB416:

1.Submit a request within 90 days.

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

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