BSC118N10NSGATMA1 - 100V 71A N-Channel OptiMOS MOSFET | Infineon
MPN: BSC118N10NSGATMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.72 | $17.20 |
| 100 | $1.38 | $138.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.92 | $920.00 |
| 5,000 | $0.78 | $3,900.00 |
Drop-in alternatives for BSC118N10NSGATMA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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BSC118N10NSGATMA1 Maximum Ratings & Electrical Characteristics
| Manufacturer | Infineon Technologies |
| Product Family | OptiMOS 2 |
| FET Type | N-Channel |
| Mode | Enhancement (Normal Level) |
| Drain-Source Voltage (VDS) | 100 V |
| Continuous Drain Current (ID) at Ta=25C | 11 A |
| Continuous Drain Current (ID) at Tc=25C | 71 A |
| Power Dissipation (PD) at Tc=25C | 114 W |
| Package | PG-TDSON-8-1 (TDSON EP, 5x6 mm) |
| Mounting Type | Surface Mount |
| Operating Junction Temperature | -55 C to +150 C |
| Technology | Trench MOSFET |
| Lead Plating | Pb-free |
| RoHS Status | Compliant |
| Halogen-Free | Yes |
| JEDEC Qualification | Qualified per target application |
| Target Application | High-frequency SMPS, synchronous rectification |
| Gate Charge x RDS(on) FOM | Excellent (per datasheet) |
BSC118N10NSGATMA1 Pin Configuration
| Pin 1 | Source β Source terminal (pin 1 of 8) |
| Pin 2 | Source β Source terminal (pin 2 of 8) |
| Pin 3 | Source β Source terminal (pin 3 of 8) |
| Pin 4 | Gate β Gate drive input |
| Pin 5 | Source β Source terminal (pin 5 of 8) |
| Pin 6 | Source β Source terminal (pin 6 of 8) |
| Pin 7 | Source β Source terminal (pin 7 of 8) |
| Pin 8 | Drain (Exposed Pad) β Drain terminal on exposed pad; thermal pad |
Safe Operating Area (DC)
Typical Applications
BSC118N10NSGATMA1 is suitable for 7 applications: 48 V Telecom Bus DC-DC Converter, Synchronous Rectification in Isolated DC-DC, Server and Datacenter VRM Stages, Motor Drive Low-Side Switch, Battery Protection and Hot-Swap, Solar Inverter and Power Optimizer, Industrial 24V Solenoid and Relay Driver.
48 V Telecom Bus DC-DC Converter
The BSC118N10NSGATMA1 is well suited for 48 V telecom bus converters where its 100 V VDS rating provides comfortable margin above the nominal 48 V rail plus transient spikes. Its 71 A continuous drain current at Tc handles peak loads in half-bridge and full-bridge topologies. The OptiMOS 2 cell architecture achieves low RDS(on) at 10 V gate drive, reducing conduction loss in the primary-side switch. Placed as the primary switch in a phase-shifted full-bridge, it minimizes duty-cycle loss and improves overall efficiency. According to the Infineon OptiMOS datasheet, designers should target 100 kHz to 500 kHz switching to balance switching loss against magnetic size.
Recommended
Synchronous Rectification in Isolated DC-DC
In isolated half-bridge and forward-converter secondary-side synchronous rectification, the BSC118N10NSGATMA1's trench technology and excellent FOM reduce body-diode conduction loss. The 100 V VDS rating covers 48 V-to-low-voltage isolated bus applications. With 71 A Tc-rated current capability, it can replace Schottky diode pairs in 12 V and 5 V output rails. The exposed drain tab enables direct PCB copper heatsinking, critical for continuous rectification current. Designers should pair it with a gate driver that enforces anti-cross-conduction dead-time to maximize efficiency.
Recommended
Server and Datacenter VRM Stages
The BSC118N10NSGATMA1 supports server VRM and datacom power stages that step down 48 V to intermediate bus voltages. Its 100 V VDS rating and 71 A current handling are well matched to multi-phase buck topologies feeding 12 V or 5 V rails. According to the Infineon OptiMOS datasheet, the low FOM enables high-frequency operation (200 kHz+) that shrinks output inductors and capacitors. The PG-TDSON-8-1 footprint is widely adopted in 48 V-to-PoL modules, simplifying PCB reuse. For new designs targeting above 95% efficiency, the BSC100N10NSFGATMA1 (OptiMOS 5) is the recommended upgrade.
Recommended
Motor Drive Low-Side Switch
The BSC118N10NSGATMA1 is well suited as a low-side switch in 24 V and 48 V brushed and brushless DC motor drives up to about 30 A continuous. Its 100 V VDS comfortably handles 24 V bus transients and back-EMF spikes from inductive loads. The 114 W power dissipation and PG-TDSON-8-1 footprint enable compact PCB designs in power tools, e-bike controllers, and small industrial drives. According to the Infineon OptiMOS datasheet, the trenched cell design provides robust avalanche capability for repetitive motor commutation events. Pair with a gate driver such as the IR2101 or IRS2184 for full half-bridge operation.
Recommended
Battery Protection and Hot-Swap
In 24 V and 48 V battery packs, e-mobility systems, and telecom battery backup, the BSC118N10NSGATMA1 functions as a low-side protection switch or hot-swap controller FET. Its 100 V VDS rating and 71 A current handling accommodate large battery packs with headroom for transient events. The exposed drain pad allows direct PCB copper heatsinking during inrush events. According to Infineon OptiMOS documentation, the cell design provides intrinsic body-diode robustness for reverse-polarity events. Designers should add a TVS across drain-source for additional avalanche protection.
Recommended
Solar Inverter and Power Optimizer
The BSC118N10NSGATMA1 supports solar micro-inverter and power-optimizer applications operating from 40 V to 80 V input. Its 100 V VDS rating covers open-circuit PV strings up to about 80 V Voc. The OptiMOS 2 architecture achieves low switching loss at the 50 kHz to 100 kHz switching frequencies common in solar topologies. The PG-TDSON-8-1 footprint is widely used in residential solar electronics, simplifying layout reuse across product families. According to the Infineon OptiMOS datasheet, the device's 150 C junction rating enables operation in outdoor enclosures without active cooling.
Recommended
Industrial 24V Solenoid and Relay Driver
The BSC118N10NSGATMA1 is well suited for low-side driving of 24 V industrial solenoids, relays, and actuators. Its 100 V VDS rating handles flyback spikes from inductive loads with generous margin. The 11 A Ta-rated current matches typical solenoid holding currents, and the PG-TDSON-8-1 footprint allows direct PCB mounting in industrial control modules. According to the Infineon OptiMOS datasheet, the device's avalanche rating supports repetitive flyback events. Pair with a freewheeling diode or use the intrinsic body diode for non-critical loads.
Recommended
Recommended Products Summary
Engineering reference data for BSC118N10NSGATMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BSC123N08NS3GATMA1 | BSC110N10NSFGATMA1 | BSC0902NSATMA1 | BSC100N10NSFGATMA1 | BSZ0901NSATMA1 | FDD86110 |
|---|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | onsemi |
| Package | PG-TDSON-8-1 (TDSON EP, 5x6 mm) | PG-TDSON-8-1 - same | PG-TDSON-8-1 - same | PG-TDSON-8-1 - same | PG-TDSON-8-1 - same | PG-TDSON-8-1 - same | PG-TDSON-8-1 (TO-252 equivalent) - same |
| Drain-Source Voltage (VDS) | 100 V | 80 V (-20%) | 100 V (same) | 100 V (same) | 100 V (same) | 100 V (same) | 100 V (same) |
| Continuous Drain Current (ID) Tc=25C | 71 A | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Continuous Drain Current (ID) Ta=25C | 11 A | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Power Dissipation (PD) Tc=25C | 114 W | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Technology Generation | OptiMOS 2 | OptiMOS 3 | OptiMOS 5 | OptiMOS 5 | OptiMOS 5 | OptiMOS 5 | onsemi trench |
| Operating Junction Temperature | -55 C to +150 C | -55 C to +150 C | -55 C to +150 C | -55 C to +150 C | -55 C to +150 C | -55 C to +150 C | -55 C to +150 C |
| RoHS / Halogen-Free | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
| Approx. Unit Price (USD, qty 1000) | 0.92 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- OptiMOS 2 generation with proven reliability (vs BSC100N10NSFGATMA1 (OptiMOS 5))
- 100 V VDS for 48 V telecom and 24 V industrial rails (vs BSC123N08NS3GATMA1 (80 V))
- PG-TDSON-8-1 footprint with 5x6 mm outline (vs FDD86110 (onsemi, TO-252 equivalent))
Design Notes
Estimated: at VDS=48 V, ID=11 A continuous (TA), conduction loss alone is approximately P = ID^2 x RDS(on). With a typical OptiMOS 2 RDS(on) of about 6-8 milliohm at VGS=10 V, this yields ~0.7-1.0 W. The PG-TDSON-8-1 footprint with at least 1 square inch of top-layer copper and thermal vias to inner planes keeps theta_JA near 50 C/W, limiting junction rise to about 50 C above ambient at 1 W dissipation. For continuous 71 A operation (TC reference), forced air cooling or a dedicated heatsink tab is required.
Place the gate drive loop area as small as possible - keep gate trace width below 0.5 mm and gate-source return within 5 mm to minimize parasitic inductance. According to the Infineon OptiMOS datasheet, excessive gate-loop inductance causes ringing that can breach the VGS(max) rating of +/-20 V. Stitch the exposed drain pad directly to a top-layer copper pour with at least 6 thermal vias (0.3 mm drill) to inner planes for optimal heat extraction.
Do not operate the BSC118N10NSGATMA1 below its fully-enhanced gate voltage of 10 V - partial enhancement inflates RDS(on) and can cause thermal runaway in high-current paths. Verify VGS off-state is below 1 V (logic-level signals require a gate driver). For avalanche-prone applications (solenoid, motor), add a TVS clamp or RCD snubber across drain-source to clamp VDS transients below 100 V. Per the datasheet, the device is qualified for target SMPS applications but repeated avalanche should still be characterized.
Compliance Information
RoHS compliant and Pb-free lead plating per Infineon OptiMOS datasheet. Halogen-free per manufacturer datasheet. JEDEC qualified for target application. Not AEC-Q100 qualified - select automotive-grade OptiMOS variants for vehicle applications.
