IRL540NSTRLPBF - 100V 36A N-Channel MOSFET | Infineon | D2PAK
MPN: IRL540NSTRLPBF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.18 | $1.18 |
| 10 | $1.05 | $10.50 |
| 100 | $0.89 | $89.00 |
| 500 | $0.74 | $370.00 |
| 1,000 | $0.62 | $620.00 |
| 3,000 | $0.51 | $1,530.00 |
Drop-in alternatives for IRL540NSTRLPBF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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IRF540NSTRLPBF
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View Datasheet →IRL540NSTRLPBF Maximum Ratings & Electrical Characteristics
| FET Type | N-Channel |
| Drain-Source Voltage (VDS) | 100 V |
| Continuous Drain Current (ID) at Tc=25°C | 36 A |
| On-Resistance (RDS(on)) max @ VGS=10V | 44 mΩ |
| Gate-Source Voltage (VGS) max | ±16 V |
| Gate Threshold Voltage (VGS(th)) | Logic-level |
| Total Gate Charge (Qg) | 49.3 nC |
| Power Dissipation (PD) at Tc=25°C | 140 W |
| Power Dissipation (PD) at TA=25°C | 3.8 W |
| Operating Temperature Range | -55°C to +175°C |
| Package | TO-263 (D2PAK) |
| Mounting Type | Surface Mount |
| Avalanche Energy Rated | Yes (single-pulse) |
| RoHS Status | Compliant (LPBF suffix indicates lead-free) |
IRL540NSTRLPBF Pin Configuration
| Pin 1 | Gate — Gate input - logic-level drive (5V capable) |
| Pin 2 | Drain — Drain connection (also electrically bonded to metal tab) |
| Pin 3 | Source — Source connection |
| Pin Tab | Drain (Tab) — Metal back-tab - Drain electrical and thermal contact |
Safe Operating Area (DC, TC=25°C)
Typical Applications
IRL540NSTRLPBF is suitable for 6 applications: DC Motor Drive and PWM Speed Control, Automotive 12V/24V Bus Switching and Load Drivers, Synchronous Rectification in Low-Voltage SMPS, Battery Management System (BMS) Discharge Control, Solenoid and Valve Drivers for Industrial Control, LED Driver and Lighting Power Switching.
DC Motor Drive and PWM Speed Control
The IRL540NSTRLPBF is well suited for brushed DC motor drive circuits in 12-48 V systems where its 100 V VDS and 36 A continuous drain current cover most small-to-medium motor loads. The logic-level gate threshold enables direct PWM drive from a 5 V microcontroller without a gate-driver stage, simplifying H-bridge and half-bridge designs in robotics and small EVs. With 49.3 nC total gate charge and 44 mΩ RDS(on), switching losses at 25 kHz PWM remain modest.
Recommended
Automotive 12V/24V Bus Switching and Load Drivers
In automotive 12 V and 24 V body-electronics applications, the IRL540NSTRLPBF serves as a low-side switch for lamps, solenoids, and relay-replacement loads. Its 100 V VDS provides ample derating margin against load-dump transients on the 12 V bus (which can spike to 40 V). The TO-263 D2PAK package is well-suited for surface-mount under-hood PCB assemblies where space is constrained.
Recommended
Synchronous Rectification in Low-Voltage SMPS
For low-voltage synchronous buck converters in the 12-48 V input range, the IRL540NSTRLPBF can serve as the low-side synchronous rectifier where its 44 mΩ RDS(on) minimizes conduction losses. Its logic-level gate allows direct drive from standard PWM controller ICs without charge-pump circuitry. At switching frequencies of 50-100 kHz, the 49.3 nC Qg keeps gate-drive losses under 1 W, preserving efficiency in 5-15 A output designs.
Recommended
Battery Management System (BMS) Discharge Control
In multi-cell Li-ion battery packs (12-48 V), the IRL540NSTRLPBF can act as the pack-level discharge MOSFET where its 100 V VDS protects against transient spikes during motor regen or load switching. The logic-level gate enables direct control from a battery monitor IC operating on the pack voltage. At 36 A continuous, it covers e-bike, scooter, and small UPS pack currents without active heatsinking beyond PCB copper.
Recommended
Solenoid and Valve Drivers for Industrial Control
Industrial solenoid and hydraulic valve drivers benefit from the IRL540NSTRLPBF's logic-level interface and 36 A peak current handling, well matched to 24 V DC solenoid coils with inrush currents up to 15-20 A. The 100 V VDS withstands the inductive flyback spike when paired with a freewheeling diode. Surface-mount D2PAK enables compact PLC output modules and DIN-rail driver cards.
Recommended
LED Driver and Lighting Power Switching
In high-brightness LED driver circuits for architectural, automotive headlamp, and stage lighting, the IRL540NSTRLPBF can serve as the main switching element in constant-current buck topologies driving 5-15 A LED strings. The 100 V VDS accommodates 48 V input rails with derating, and the logic-level gate allows direct PWM dimming control from a microcontroller for precise brightness modulation without analog filtering.
Recommended
Recommended Products Summary
Engineering reference data for IRL540NSTRLPBF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IRF540NSTRLPBF | IRFR120NTRLPBF | IRLR3410TRLPBF | IRFS4321TRLPBF |
|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | TO-263 (D2PAK) | TO-263 (D2PAK) - same | TO-252 (DPAK) | TO-252 (DPAK) | TO-263 (D2PAK) - same |
| Drain-Source Voltage (VDS) | 100 V | 100 V | 100 V | 100 V | 100 V |
| Continuous Drain Current (ID) @ Tc=25°C | 36 A | 33 A | 9.4 A | 45 A | 85 A |
| On-Resistance (RDS(on)) max @ VGS=10V | 44 mΩ | 44 mΩ | 210 mΩ | 25 mΩ | 9.4 mΩ |
| Gate Threshold Type | Logic-level (5V capable) | Standard (10V required) | Logic-level | Logic-level | Logic-level |
| Total Gate Charge (Qg) | 49.3 nC | 71 nC | 12 nC | 50 nC | 62 nC |
| Power Dissipation (PD) @ Tc=25°C | 140 W | 130 W | 48 W | 79 W | 160 W |
Key Differentiators
- Logic-level gate drive eliminates gate-driver stage (vs IRF540NSTRLPBF)
- Higher continuous drain current in D2PAK (vs IRFS4321TRLPBF)
- Smaller footprint option available in same family (vs IRFR120NTRLPBF (DPAK))
Design Notes
The D2PAK package achieves its 140 W power dissipation rating ONLY with the metal tab soldered to a PCB copper area providing thermal resistance below ~0.5 °C/W. Estimated: with 1 square inch of 2 oz copper on each layer of a 4-layer board, θJA ≈ 40 °C/W, limiting practical dissipation to ~3.7 W at TA=25 °C without a dedicated heatsink. For continuous loads above 2-3 A at elevated ambient, use an active heatsink or upgrade to a TO-220 version of the same die family.
Keep the gate-drive loop (gate resistor → gate pin → source pin → gate-driver ground return) area minimal — ideally under 1 cm² — to minimize parasitic inductance that causes gate-oscillation and dv/dt-induced turn-on. Place the gate resistor (10-100 Ω) physically adjacent to the gate pin. The exposed drain tab must be soldered to a copper pad large enough to dissipate full-load power without exceeding 175 °C junction temperature.
Do not exceed VGS of ±16 V absolute maximum even though the device is logic-level rated — ESD strikes from handling or transformer coupling can exceed this. Add a 10 kΩ gate-source resistor to ensure the MOSFET stays off when the gate drive is floating or high-impedance during MCU reset. For inductive loads, add a freewheeling diode or TVS across the drain-source to clamp the inductive kick below the 100 V VDS rating.
For PWM switching above 20 kHz, the 49.3 nC total gate charge requires a gate-driver capable of sourcing/sinking > 0.5 A peak to achieve clean rise/fall times below 100 ns. If driven directly from a 5 V MCU GPIO (typically 4-8 mA source capability), switching time stretches to ~500 ns and switching losses can exceed conduction losses in SMPS applications. Use a dedicated gate-driver (e.g., 1EDI20N12AF or similar) for high-frequency designs.
Compliance Information
LPBF suffix confirms lead-free / Pb-free plating. RoHS and REACH compliance per Infineon product page. Not AEC-Q100 qualified (automotive grade versions may exist with different suffix). Halogen-free status not explicitly stated in available data.
