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AOW296
Alpha & Omega Semiconductor Inc.
MOSFET N-CHANNEL 100V 70A TO262
1427 Pcs New Original In Stock
N-Channel 100 V 70A (Tc) 104W (Tc) Through Hole TO-262
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AOW296
Product Overview
12845816
DiGi Electronics Part Number
AOW296-DGManufacturer
Alpha & Omega Semiconductor Inc.
AOW296
Description
MOSFET N-CHANNEL 100V 70A TO262Inventory
1427 Pcs New Original In Stock
N-Channel 100 V 70A (Tc) 104W (Tc) Through Hole TO-262
Quantity
Minimum 1
Minimum 1
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AOW296 Technical Specifications
Category
Transistors, FETs, MOSFETs, Single FETs, MOSFETs
Packaging
-
Series
AlphaSGT™
Product Status
Obsolete
FET Type
N-Channel
Technology
MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)
100 V
Current - Continuous Drain (Id) @ 25°C
70A (Tc)
Drive Voltage (Max Rds On, Min Rds On)
6V, 10V
Rds On (Max) @ Id, Vgs
9.7mOhm @ 20A, 10V
Vgs(th) (Max) @ Id
3.4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs
52 nC @ 10 V
Vgs (Max)
±20V
Input Capacitance (Ciss) (Max) @ Vds
2785 pF @ 50 V
FET Feature
-
Power Dissipation (Max)
104W (Tc)
Operating Temperature
-55°C ~ 150°C (TJ)
Mounting Type
Through Hole
Supplier Device Package
TO-262
Package / Case
TO-262-3 Long Leads, I2PAK, TO-262AA
Base Product Number
AOW29
Datasheet & Documents
Datasheets
Download AOW296 Product Specification (PDF)
HTML Datasheet
AOW296-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.29.0095
Additional Information
Other Names
5202-AOW296
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
Thanks to their robust packaging, my items always arrive in pristine condition, regardless of distance.
December 02, 2025
I appreciate their proactive approach in providing solutions and support.
December 02, 2025
Their proactive approach in troubleshooting has prevented many potential problems.
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Frequently Asked Questions (FAQ)
Can the AOW296 MOSFET be used as a drop-in replacement for the IRF2807 in a 100V motor drive application, and what design-in risks should I consider?
The AOW296 can serve as a functional replacement for the IRF2807 in 100V motor drive designs, but caution is required due to key differences. While both are N-channel TO-262 MOSFETs with similar Vdss and Id ratings, the AOW296 has a lower Rds(on) of 9.7mΩ @ 10V (vs. 11mΩ for IRF2807), which improves conduction efficiency. However, the AOW296 has a higher gate charge (52nC vs. ~36nC), increasing switching losses in high-frequency PWM drives. Ensure your gate driver can source/sink sufficient current to charge/discharge the gate quickly. Also verify thermal design margins, as AOW296 is rated at 104W (Tc) and requires solid heatsinking. Confirm PCB layout accommodates through-hole TO-262 mounting and provide adequate creepage for 100V operation to mitigate field failure risks.
Is the AOW296 suitable for parallel operation in a high-current DC-DC converter, and how can I mitigate uneven current sharing?
Yes, the AOW296 can be used in parallel in high-current DC-DC converters, but thermal and electrical imbalances must be addressed. Due to its positive temperature coefficient for Rds(on), the AOW296 supports natural current sharing when devices are thermally coupled. However, layout asymmetries can create imbalance. To mitigate risks: use symmetrical PCB traces for gate and source paths, include small source inductors or sense resistors for feedback equalization, and mount all AOW296 devices on the same heatsink for uniform temperature. Avoid fast-switching above 100kHz without simulation, as differences in gate charge (52nC max) and input capacitance (2785pF) can cause timing skew and shoot-through during turn-on.
Why is the AOW296 listed as obsolete, and what are the long-term reliability and sourcing risks for new designs?
The AOW296 is marked as obsolete by Alpha & Omega Semiconductor, meaning no new manufacturing runs are planned, and future availability is limited to existing stock (e.g., 1359 pcs). While currently in stock, using the AOW296 in new designs introduces significant supply chain risk for production scalability and long-term field support. For reliability, the AOW296 is rated for -55°C to 150°C TJ and is robust in industrial environments, but end-of-life status means no long-term qualification updates or failure rate monitoring. Consider evaluating active-pin-to-pin alternatives like the AON6260 or Infineon IPP60R099CPA (with appropriate derating) and secure last-time buy quantities if committing to AOW296 for legacy or short-run applications.
How does the AOW296 perform in hard-switching applications like H-bridge inverters, and what switching frequency limits should be enforced?
The AOW296 can perform in hard-switching H-bridge inverters up to 50kHz, but with thermal trade-offs. Its 52nC gate charge and 2785pF input capacitance demand strong gate drivers (e.g., 2A peak) to minimize switching transition times and reduce turn-on/turn-off losses. At higher frequencies, switching losses dominate due to frequent charging/discharging of Ciss. To prevent thermal runaway: derate the 104W (Tc) power dissipation by at least 30%, use forced-air cooling if above 25kHz, and implement dead-time control to avoid shoot-through. Monitor junction temperature with thermal vias under the mounting tab and ensure Vgs stays within ±20V, especially during gate ringback in inductive loads.
What are critical thermal design considerations when mounting the AOW296 in a TO-262 package on a standard FR4 PCB without a heatsink?
Mounting the AOW296 without a heatsink on FR4 is feasible only for low-duty-cycle or low-power applications (<10W dissipation). The TO-262 package relies heavily on the PCB for thermal dissipation via the drain tab. To avoid overheating: use at least 2oz copper on both top and bottom layers, connect the drain pad to large copper pours with multiple thermal vias (≥10 vias, 0.3mm diameter), and keep traces short to minimize thermal resistance. Expect junction-to-ambient (θJA) values over 40°C/W on FR4, limiting continuous Id to under 20A even at room temperature. For higher loads, a dedicated heatsink is mandatory. Always monitor TJ during burn-in testing, as the AOW296's 150°C max rating can be exceeded rapidly in enclosed environments.
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AOW296 CAD Models
Alpha & Omega Semiconductor Inc. AOW296 PCB symbols & footprints
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