IAUC100N10S5N040ATMA1 - 100V 4mΩ 100A OptiMOS-5 N-MOSFET | Infineon
MPN: IAUC100N10S5N040ATMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.42 | $34.20 |
| 100 | $2.78 | $278.00 |
| 500 | $2.31 | $1,155.00 |
| 1,000 | $1.95 | $1,950.00 |
| 5,000 | $1.62 | $8,100.00 |
Drop-in alternatives for IAUC100N10S5N040ATMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
IAUC100N10S5N040
✅ Drop-In📋 Reference alternative (not in catalog)
IRLR3410TRLPBF
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.65 / Unit
View Datasheet →IPD320N20N3GATMA1
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.34 / Unit
View Datasheet →IAUC100N10S5N040ATMA1 Maximum Ratings & Electrical Characteristics
| FET Type | N-Channel, Enhancement Mode |
| Technology | OptiMOS-5 |
| Drain-Source Voltage (VDS) | 100 V |
| Continuous Drain Current (ID) @ TC=25C | 100 A (package-limited) |
| Pulsed Drain Current (IDM) | 400 A |
| RDS(on) max @ VGS=10V | 4 mΩ |
| Maximum Power Dissipation (PD) | 167 W @ TC=25C |
| Thermal Resistance, Junction-to-Case (RthJC) | 0.9 K/W |
| Operating Temperature Range | -55C to +175C (junction) |
| Package | PG-TDSON-8-34 (TDSON-8, 5x6 mm) Surface Mount |
| Mounting Type | Surface Mount |
| MSL Level | MSL1 (up to 260C peak reflow) |
| Automotive Qualification | AEC-Q100 qualified |
| Avalanche Rating | 100% Avalanche tested |
| AOI Compatibility | Feasible for Automatic Optical Inspection |
| RoHS Status | Compliant |
IAUC100N10S5N040ATMA1 Pin Configuration
| Pin 1 | Source — Source terminal (connected to thermal pad) |
| Pin 2 | Source — Source terminal |
| Pin 3 | Source — Source terminal |
| Pin 4 | Source — Source terminal |
| Pin 5 | Gate — Gate drive input |
| Pin 6 | Drain — Drain terminal |
| Pin 7 | Drain — Drain terminal |
| Pin 8 | Drain — Drain terminal |
| Pin PAD | Source — Exposed thermal pad, internally connected to source |
Safe Operating Area (DC)
Typical Applications
IAUC100N10S5N040ATMA1 is suitable for 7 applications: Automotive 48V Mild-Hybrid Load Switch, Electric Power Steering (EPS) Controller, Battery Management System (BMS) Protection FET, DC-DC Converter Primary-Side Switch, High-Current ORing / Hot-Swap Circuit, Industrial Motor Drive Inverter, Solar Inverter / Renewable Energy Switch.
Automotive 48V Mild-Hybrid Load Switch
The IAUC100N10S5N040ATMA1 is well-suited for high-side and low-side switching in 48V mild-hybrid automotive load management. Its 100V VDS rating provides comfortable margin above the 48V bus with inductive transient clamping; the 4 mΩ maximum RDS(on) at VGS=10V keeps conduction losses under 40W at 100A, important for thermal budgets in sealed underhood enclosures. AEC-Q100 qualification and 100% avalanche testing make it directly acceptable for safety-relevant automotive subsystems. In typical 48V e-fan or e-turbo applications, this part replaces older OptiMOS-3 devices with substantial FOM improvement.
Recommended
Electric Power Steering (EPS) Controller
In EPS controllers the IAUC100N10S5N040ATMA1 can serve as the high-current inverter switch driving the BLDC motor windings at 12V or 48V. The 100A continuous rating covers peak torque demands during parking maneuvers, while the 400A pulsed rating handles inrush transients. The 0.9 K/W RthJC enables direct PCB mounting without external heatsinks in space-constrained steering column electronics. OptiMOS-5 process technology improves switching losses versus previous generations, reducing thermal stress during PWM operation at 20-25 kHz.
Recommended
Battery Management System (BMS) Protection FET
The IAUC100N10S5N040ATMA1 functions effectively as a battery disconnect / protection FET in 48V BMS modules, where its 100V rating and 100A continuous current handle typical pack capacities up to 5 kWh. The low 4 mΩ RDS(on) keeps dissipation under 5W during normal operation, critical for minimizing impact on battery range. The 100% avalanche-tested rating provides extra margin during short-circuit disconnect events where inductive energy must be safely absorbed. AEC-Q100 qualification ensures long-term reliability in automotive battery environments with temperature swings from -40°C to +85°C.
Recommended
DC-DC Converter Primary-Side Switch
In 48V-to-12V or 48V-to-5V buck converter primary-side positions, the IAUC100N10S5N040ATMA1 handles high peak currents at switching frequencies of 100-300 kHz. The OptiMOS-5 process delivers lower Qg and Qrr than older generations, reducing switching losses and improving converter efficiency above 96%. The TDSON-8-34 package with central thermal pad enables low-inductance PCB layouts that minimize voltage overshoot during fast switching transitions. The 100V VDS rating accommodates transformer reset voltages and leakage inductance spikes safely.
Recommended
High-Current ORing / Hot-Swap Circuit
For redundant 48V power supply ORing or hot-swap insertion circuits, the IAUC100N10S5N040ATMA1 serves as the main pass element between source and load. Its low 4 mΩ RDS(on) reduces voltage drop and power dissipation versus typical ORing Schottky or controller-MOSFET solutions, especially at full 100A load. The 100V rating provides headroom for transient overvoltages during hot-plug events. MSL1 rating to 260°C reflow supports standard SMT manufacturing for high-volume server and telecom power distribution units.
Recommended
Industrial Motor Drive Inverter
In industrial servo drives and variable-frequency motor controllers operating from 48-72V DC bus, the IAUC100N10S5N040ATMA1 forms the inverter output stage for 3-phase BLDC or PMSM motors up to 5 kW. The 100A continuous rating covers peak torque demands, and the 400A pulsed rating absorbs regeneration transients back to the bus. AEC-Q100 qualification provides extra reliability margin for industrial environments with vibration, temperature cycling, and humidity exposure. The PG-TDSON-8-34 footprint is compatible with high-density inverter PCBs.
Recommended
Solar Inverter / Renewable Energy Switch
In small-to-medium residential or commercial solar inverter stages operating from 48V battery banks, the IAUC100N10S5N040ATMA1 handles the synchronous-rectifier and inverter switching functions. Its 100V VDS rating suits 48V battery systems with transient protection, while 100A continuous handles peak inverter output currents. The low RDS(on) reduces cooling requirements in sealed outdoor inverter enclosures. Long-term reliability from AEC-Q100 qualification is valuable for solar installations where maintenance access is limited.
Recommended
Recommended Products Summary
Engineering reference data for IAUC100N10S5N040ATMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IAUC100N10S5N040 | IRLR3410TRLPBF | IPD320N20N3GATMA1 |
|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-TDSON-8-34 (5x6 mm) | PG-TDSON-8-34 (5x6 mm) - same | TO-252 (DPAK) - different | PG-TDSON-8-34 (5x6 mm) - same |
| Drain-Source Voltage (VDS) | 100 V | 100 V | 100 V | 200 V |
| Continuous Drain Current (ID @ TC=25C) | 100 A | 100 A | 60 A (DPAK limited) | 60 A |
| RDS(on) max @ VGS=10V | 4 mΩ | 4 mΩ | [DATA_NEEDED] | 32 mΩ |
| RthJC (Thermal Resistance Junction-Case) | 0.9 K/W | 0.9 K/W | [DATA_NEEDED] | [DATA_NEEDED] |
| Automotive Qualification (AEC-Q100) | Yes | Yes | Yes | Yes |
| MSL Level | MSL1 (260C reflow) | MSL1 | MSL1 | MSL1 |
| Process Technology | OptiMOS-5 | OptiMOS-5 | HexFET (older generation) | OptiMOS-3 |
Key Differentiators
- OptiMOS-5 process technology delivers industry-leading FOM (vs IRLR3410TRLPBF (older HexFET generation))
- 100V VDS with low RDS(on) in compact PG-TDSON-8-34 footprint (vs IPD320N20N3GATMA1 (200V, 32 mΩ))
- AEC-Q100 qualified with 100% avalanche testing (vs Industrial-grade MOSFET alternatives)
- 100A continuous current in small 5x6 mm package (vs Larger DPAK or D2PAK package alternatives)
Design Notes
Estimated: At full 100A continuous drain current and 4 mΩ RDS(on), the steady-state conduction loss is approximately 40W. With the PG-TDSON-8-34 thermal resistance RthJC = 0.9 K/W (junction-to-case), the case must be held below 100°C to keep Tj under 175°C, which requires either substantial PCB copper pour on the source pad or an attached heatsink. For PCB-only cooling with 1 oz copper, a minimum 6-10 square cm of copper is recommended; a 4-layer PCB with 2 oz inner layers substantially improves thermal performance.
Place input bulk capacitors, gate driver, and gate resistor within 5 mm of the device pins to minimize parasitic inductance. The TDSON-8-34 package exposes a central source pad that doubles as the thermal pad; this must be soldered to a continuous copper pour on top layer AND connected via thermal vias to internal copper planes for optimal heat spreading. Gate trace should be kept short and routed away from drain switching nodes to avoid capacitive coupling that could cause false triggering or excessive ringing.
Do not operate without confirming the gate driver can supply sufficient peak current to charge Qg quickly enough for the switching frequency; at 100 kHz a 10V gate drive with insufficient peak current causes the FET to operate in linear region, dramatically increasing switching losses. Also avoid exceeding the avalanche rating during abnormal operation - although 100% avalanche tested, repeated avalanche events degrade the device. Always use a gate-source resistor of 10-100 kΩ to prevent false turn-on from dV/dt induced Miller coupling.
Source inductance is the dominant contributor to switching losses and voltage overshoot; minimize the source-loop area between the FET source pad and the gate driver ground return. Use a Kelvin source connection (separate source-sense pin if available) routed directly back to the gate driver IC rather than sharing the main source current path. For high-current applications above 50A continuous, paralleling two devices with balanced source resistors can reduce both conduction and thermal stress on each individual MOSFET.
Compliance Information
AEC-Q100 automotive qualified per Infineon part page; MSL1 rated to 260C peak reflow; 100% avalanche tested. RoHS and REACH compliance confirmed via distributor listings.
