FDS4410A - 30V 10A N-Ch Logic-Level MOSFET | Fairchild
MPN: FDS4410A β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1 | $1.00 |
| 10 | $0.85 | $8.50 |
| 100 | $0.62 | $62.00 |
| 500 | $0.48 | $240.00 |
| 1,000 | $0.38 | $380.00 |
FDS4410A Overview
A power MOSFET is a voltage-controlled semiconductor switch used throughout the power management hierarchy (MOSFET -> discrete transistor -> semiconductor). Logic-level MOSFETs are a subclass specified to turn fully on at 4.5 V gate drive, allowing direct interface with 3.3 V and 5 V microcontroller GPIOs, PWM controllers, and battery-management ICs without a dedicated gate-driver stage.
Key features of the FDS4410A include Fairchild's advanced PowerTrench process technology, engineered specifically to minimize on-state resistance while maintaining superior switching performance. The logic-level gate threshold permits low-voltage drive, and the 30 V rating suits low-voltage, battery-powered systems. The compact SOIC-8 footprint provides a well-understood thermal and land-pattern standard for surface-mount assembly.
Technically, the PowerTrench trench-FET structure achieves low RDS(on) through dense vertical trench gating, reducing conduction losses in high-current paths. Because the device is optimized for low-voltage switching, gate charge is modest, supporting efficient PWM operation in synchronous topologies and load-switch circuits. Per the manufacturer description, the process has been especially tailored to minimize on-state resistance, which directly lowers I^2R losses at the 10 A rated current.
Typical applications include low-voltage and battery-powered systems, DC load switches, low-side switching in portable equipment, and power-path management in consumer and industrial boards.
Design consideration: verify RDS(on) at the actual gate-drive voltage in your circuit, since on-resistance rises at reduced VGS, and budget PCB copper on the drain/source pads for thermal dissipation (DigiKey lists 2.5 W (Ta) for the package family).
This page synthesizes distributor pricing context, cross-referenced drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for FDS4410A β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
FDS4410
β Drop-Inπ Reference alternative (not in catalog)
FDS4410AZ
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
AO4468
β Drop-Inπ Reference alternative (not in catalog)
FDS4410A Maximum Ratings & Electrical Characteristics
| Transistor Type | Single N-Channel MOSFET |
| Technology | PowerTrench (logic level) |
| Drain-Source Voltage (VDS) | 30 V |
| Continuous Drain Current (ID) | 10 A (Ta) |
| Power Dissipation (PD) | 2.5 W (Ta) |
| Gate Drive Type | Logic level (4.5 V drive) |
| Package | SOIC-8 (surface mount) |
| Mounting Type | Surface Mount |
| Configuration | Single FET |
FDS4410A Pin Configuration
| Pin 1 | Source β Source terminal (connected to pins 2 and 3) |
| Pin 2 | Source β Source terminal |
| Pin 3 | Source β Source terminal |
| Pin 4 | Gate β Gate control terminal |
| Pin 5 | Drain β Drain terminal (connected to pins 6, 7, 8) |
| Pin 6 | Drain β Drain terminal |
| Pin 7 | Drain β Drain terminal |
| Pin 8 | Drain β Drain terminal |
Safe Operating Area (estimated from 30 V / 10 A / 2.5 W ratings)
Typical Applications
FDS4410A is suitable for 6 applications: Battery-Powered Portable Devices, Low-Side DC Load Switching, Synchronous Buck Converter Low-Side FET, Motor Drive Low-Voltage Stages, Power-Path and ORing Management, Industrial and Consumer Board-Level Switching.
Battery-Powered Portable Devices
The FDS4410A fits battery-powered systems because its logic-level gate turns fully on at roughly 4.5 V, matching single-cell and multi-cell battery stacks managed by 3.3 V to 5 V microcontrollers without a dedicated gate-driver stage. According to the Fairchild datasheet description, the device is explicitly suited for low-voltage and battery-powered applications. In a typical load-switch topology, the MOSFET sits as a low-side switch between the load return and ground, with a 100k gate pull-down ensuring the rail stays disconnected during MCU reset. Because conduction loss equals I^2 times RDS(on), the PowerTrench process emphasis on minimized on-state resistance directly extends battery runtime at multi-amp loads. Verify RDS(on) at the actual battery voltage range, since on-resistance degrades as the cell discharges and gate drive falls.
Recommended
Low-Side DC Load Switching
As a low-side switch, the FDS4410A grounds the negative return of a 12 V load while the source sits at system ground, so its logic-level 4.5 V gate drive interfaces directly with 5 V GPIO, open-drain outputs, or PWM controllers. The 30 V VDS rating leaves comfortable margin above 12 V rails, absorbing modest inductive kick when switching relays, fans, or solenoids with a freewheel diode. At multi-amp loads, PowerTrench low RDS(on) keeps conduction loss and heat low; for example, at 5 A a 20 mohm device dissipates about 0.5 W, manageable with a modest copper pour. Add a 10 to 22 ohm gate resistor to control switching edge speed and EMI, and size the drain copper for surge events such as lamp cold-filament inrush.
Recommended
Synchronous Buck Converter Low-Side FET
The FDS4410A can serve as the low-side synchronous rectifier in low-voltage buck converters, where the PowerTrench trench process minimizes RDS(on) to cut conduction losses during the freewheeling interval. Its logic-level gate suits controllers with 5 V drive, and modest gate charge reduces transition losses at the switching frequency. In this role the source connects to ground and the drain to the switch node, sharing the SOIC-8 layout with the high-side MOSFET. Performance consideration: at switching frequencies above roughly 200 kHz, verify the datasheet gate-charge figures, because total switching loss scales with frequency; below that, conduction loss dominates and the low RDS(on) is the primary benefit. Keep the switch-node loop tight to limit ringing and EMI.
Recommended
Motor Drive Low-Voltage Stages
In small DC motor and hobby-grade drive circuits, the FDS4410A works as the low-side PWM switch controlling motor current from a 5 V to 12 V rail. The logic-level threshold permits direct PWM from 5 V microcontroller timers, while the 30 V rating absorbs the flyback pulses that inductive motor windings generate, provided a fast freewheel diode or Schottky is placed across the motor. PowerTrench low on-state resistance minimizes heating during high-duty-cycle PWM; at 10 A continuous, conduction loss equals 10^2 times RDS(on), so keep RDS(on) low and the SOIC-8 pads thermally coupled to at least 1 square inch of copper. For stalled-rotor or stall-current events, check the device safe operating area and add cycle-by-cycle current limiting in the controller.
Recommended
Power-Path and ORing Management
For power-path management between a battery and an adapter input in portable equipment, the FDS4410A can act as the switched return-path element, while its complementary P-channel siblings handle the high side. Its logic-level gate allows the power-management IC or microcontroller to toggle sources without a charge-pump driver, and the 30 V VDS rating comfortably covers 5 V to 19 V adapter rails common in notebooks and chargers. The PowerTrench process focus on low on-state resistance minimizes the voltage drop and I^2R loss across the switch during sustained load, preserving voltage accuracy at the load. Trade-off to note: an N-channel element in the return path lifts the load ground reference by I times RDS(on), which matters for sensitive analog circuitry, so verify ground-bounce tolerances.
Recommended
Industrial and Consumer Board-Level Switching
The FDS4410A suits general board-level switching in industrial controls and consumer appliances, where its SOIC-8 surface-mount format supports standard reflow assembly and its 10 A rating covers solenoids, heaters, valves, and indicator drivers on 12 V and 24 V-class low-side rails (with transient margin checked against the 30 V limit). The logic-level gate simplifies interface to PLC-adjacent 5 V logic, and the PowerTrench process delivers low RDS(on) for cool operation in sealed enclosures with limited airflow. Thermal design is the main consideration: 2.5 W (Ta) package dissipation assumes generous copper; estimate junction rise using theta-JA from the datasheet multiplied by your actual conduction loss, and parallel two FETs with individual gate resistors when more current or lower dissipation is required.
Recommended
Recommended Products Summary
Engineering reference data for FDS4410A β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | FDS4410 | FDS4410AZ | AO4468 |
|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same |
| Brand | Fairchild Semiconductor (onsemi) | onsemi | onsemi | Alpha & Omega Semiconductor |
| Drain-Source Voltage | 30 V | 30 V | 30 V | 30 V |
| Gate Drive Type | Logic level | Logic level | Logic level | Logic level |
| Technology | PowerTrench | PowerTrench | PowerTrench | Trench MOSFET |
Key Differentiators
- PowerTrench process for minimized on-state resistance (vs FDS4410)
- Active-production cross-brand substitute availability (vs AO4468)
- Logic-level gate eliminates driver cost (vs FDS4410AZ)
Design Notes
The SOIC-8 package is listed at 2.5 W (Ta) power dissipation, but that figure assumes ideal mounting. Estimated: at 5 A load with 20 mohm RDS(on), conduction loss is 0.5 W; with a typical SOIC-8 theta-JA of 100 C/W, junction rise is about 50 C over ambient - acceptable at 25 C ambient but marginal at 70 C. Provide at least 1 square inch of 2 oz copper connected to the drain pins, and verify RDS(on) at your actual gate-drive voltage because it rises at reduced VGS, increasing dissipation in a self-reinforcing loop.
Keep the gate loop short: route the gate trace directly from the driver with a 10 to 22 ohm series resistor placed close to pin 4, and include a 10k to 100k gate-to-source pull-down so the MOSFET stays off during controller reset or when the driver is high-impedance. Connect all four drain pins (5-8) and all three source pins (1-3) to generous copper; the multiple pins exist specifically to reduce lead resistance and inductance at 10 A. For switching applications, minimize the drain-source loop area with the freewheel diode or catch element placed within a few millimeters of the SOIC-8 body.
Do not exceed the 30 V drain-source rating: on unregulated 12 V adapters or inductive loads, transients can exceed the limit and cause avalanche failure - use a TVS or snubber if needed. Never drive the gate from a 3.3 V GPIO and assume datasheet RDS(on), since this logic-level part is specified near 4.5 V; at lower drive, on-resistance degrades substantially and may cause thermal runaway at high current. Also confirm substitute parts (e.g., AO4468) are gate-threshold-compatible before drop-in substitution in production.
Compliance Information
Compliance data not present in provided web data; consult onsemi product page for the legacy Fairchild FDS4410A compliance certificates.
