IRFR4615TRLPBF - 150V 33A N-Ch MOSFET, DPAK | Infineon
MPN: IRFR4615TRLPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.79 | $0.79 |
| 10 | $0.72 | $7.20 |
| 100 | $0.58 | $58.00 |
| 500 | $0.46 | $230.00 |
| 1,000 | $0.39 | $390.00 |
Drop-in alternatives for IRFR4615TRLPBF 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:
IRFR4615TRPBF
β Drop-Inπ Reference alternative (not in catalog)
IRFR4615TRLPBF-EL
β Drop-Inπ Reference alternative (not in catalog)
IRFR3411TRPBF
β Drop-Inβ In Stock
$0.55 / Unit
View Datasheet βVBE1154N
β Drop-Inπ Reference alternative (not in catalog)
IRF150P220AKMA1
β Drop-Inβ In Stock
$3.55 / Unit
View Datasheet βIRFR4615TRLPBF Maximum Ratings & Electrical Characteristics
| Technology | IR MOSFET (N-Channel Enhancement Mode) |
| Drain-Source Voltage (VDS) | 150 V |
| Continuous Drain Current (ID) at TC=25C | 33 A |
| On-Resistance RDS(on) max at VGS=10V | 42 mOhm |
| Total Gate Charge (Qg) | 26 nC |
| Power Dissipation (PD) at TC=25C | 144 W |
| Avalanche Energy (EAS) | 109 mJ |
| Operating Temperature Range | -55C to +175C |
| Package | TO-252AA (DPAK) |
| Mounting Type | Surface Mount |
| Lead-Free / RoHS | Yes (PBF suffix indicates Pb-free) |
| Single Pulse Avalanche Energy | 109 mJ |
IRFR4615TRLPBF Pin Configuration
| Pin 1 | Gate β MOSFET gate drive input |
| Pin 2 | Drain β MOSFET drain; electrically connected to the metal tab |
| Pin 3 | Source β MOSFET source connection |
Safe Operating Area (DC)
Typical Applications
IRFR4615TRLPBF is suitable for 6 applications: Secondary-Side Synchronous Rectification in SMPS, Industrial DC-DC Converter High-Side Switch, Battery Management System (BMS) Protection Switch, Low-Voltage Motor Drive H-Bridge, Uninterruptible Power Supply (UPS) Switch, Automotive 48V Mild-Hybrid Load Switch.
Secondary-Side Synchronous Rectification in SMPS
The IRFR4615TRLPBF is ideally suited for secondary-side synchronous rectification in 24V-48V switch-mode power supplies. With 150V VDS, 33A ID, and 42 mOhm max RDS(on) at VGS=10V, it drops less than 1.5V at full load - far lower than a Schottky diode - and the 26 nC total gate charge keeps switching losses minimal at 100-200 kHz. In a typical 48V-to-5V forward converter or LLC stage, two IRFR4615TRLPBF devices replace the output rectifier pair, raising efficiency from the low-90% range into the mid- to high-90% range. The 109 mJ avalanche rating provides ruggedness against the secondary-side ringing that often occurs during dead-time transitions.
Recommended
Industrial DC-DC Converter High-Side Switch
In industrial 24V-48V buck and buck-boost converters, the IRFR4615TRLPBF serves as the high-side or low-side switching element. Its 150V breakdown comfortably exceeds the 48V nominal bus plus transient spikes up to 80V, providing ample margin for automotive and industrial load-dump conditions. The TO-252 (DPAK) package's exposed tab allows direct PCB copper heatsinking for continuous currents of 5-10A without active cooling. With 33A pulsed capability, the part handles repetitive transient loads such as motor inrush and solenoid activation. The 42 mOhm RDS(on) keeps conduction losses low, making it suitable for efficiency-critical telecom and server power rails.
Recommended
Battery Management System (BMS) Protection Switch
The IRFR4615TRLPBF is widely used as a load-disconnect and charge-protection switch in 24V-48V battery management systems including e-scooters, light EVs, and telecom backup batteries. Its 150V VDS rating supports multi-cell lithium packs with high transient voltages during switching events. The 33A continuous current rating handles the full discharge current of mid-sized battery packs, while the 42 mOhm on-resistance minimizes voltage drop across the protection switch. The DPAK package's thermal mass provides short-time overload handling for inrush events such as motor starts. Per Infineon's datasheet, the part's avalanche rating of 109 mJ ensures ruggedness against the inductive kick from battery cabling.
Recommended
Low-Voltage Motor Drive H-Bridge
The IRFR4615TRLPBF works well as the switching element in 24V-48V brushed DC motor H-bridge drives used in robotics, small EVs, and industrial automation. With 33A continuous current, the part handles fractional-horsepower motors up to roughly 500W continuous without paralleling. The 150V breakdown provides ample headroom for the back-EMF spikes generated when the motor is switched off under load. The 26 nC Qg allows the H-bridge to operate at PWM frequencies up to 50 kHz for smooth torque control. The 109 mJ single-pulse avalanche energy rating is a key benefit for motor-drive applications where inductive switching transients are routine.
Recommended
Uninterruptible Power Supply (UPS) Switch
In line-interactive and online UPS systems operating from 24V-48V battery banks, the IRFR4615TRLPBF serves as the inverter switching device and battery disconnect switch. Its 150V VDS provides sufficient margin for the battery bus plus inverter transients, while the 33A continuous rating supports UPS systems in the 1-2 kVA range. The low 42 mOhm on-resistance minimizes conduction losses during battery discharge, extending runtime. The DPAK package simplifies thermal management - mounting the tab to a small copper heatsink or large PCB copper pour is sufficient for typical UPS thermal envelopes. The avalanche energy rating adds robustness against the inductive kick from inverter transformers.
Recommended
Automotive 48V Mild-Hybrid Load Switch
The IRFR4615TRLPBF is well-matched to 48V mild-hybrid automotive applications such as electric power steering, active suspension valves, and auxiliary load switching. The 150V VDS comfortably exceeds the 48V bus plus load-dump transients, and the -55C to +175C operating junction temperature range handles under-hood thermal environments. The 33A continuous current supports high-current actuators and PTC heater loads. While not AEC-Q101 qualified, it is used in non-safety automotive subsystems and industrial truck applications. The TO-252 DPAK package is widely accepted in automotive PCB assembly lines, simplifying manufacturing.
Recommended
Recommended Products Summary
Engineering reference data for IRFR4615TRLPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IRFR4615TRPBF | IRFR4615TRLPBF-EL | IRFR3411TRPBF | VBE1154N | IRF150P220AKMA1 |
|---|---|---|---|---|---|---|
| Package | TO-252AA (DPAK) | TO-252AA (DPAK) - same | TO-252AA (DPAK) - same | TO-252AA (DPAK) - same | TO-252AA (DPAK) - same | TO-252AA (DPAK) - same |
| Brand | Infineon | Infineon | Infineon | Infineon | VBsemi | Infineon |
| VDS (Drain-Source Voltage) | 150 V | 150 V | 150 V | 100 V | 150 V | 200 V |
| Continuous Drain Current (ID) at TC=25C | 33 A | 33 A | 33 A | [DATA_NEEDED] | 40 A | [DATA_NEEDED] |
| RDS(on) max at VGS=10V | 42 mOhm | 42 mOhm | 42 mOhm | [DATA_NEEDED] | 32 mOhm | [DATA_NEEDED] |
| Total Gate Charge (Qg) | 26 nC | 26 nC | 26 nC | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Power Dissipation (PD) at TC=25C | 144 W | 144 W | 144 W | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Avalanche Energy (EAS) | 109 mJ | 109 mJ | 109 mJ | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Approx. Unit Price (qty-1, USD) | 0.79 | ~0.79 | ~0.79 | [DATA_NEEDED] | ~0.37 (LCSC) | [DATA_NEEDED] |
Key Differentiators
- 150V VDS with 33A ID in DPAK (vs IRFR3411TRPBF)
- Lower RDS(on) cross-brand alternative available (vs VBE1154N (VBsemi))
- Synchronous-rectifier optimized gate charge (vs IRF150P220AKMA1)
- Avalanche-rated for inductive switching (vs IRFR3411TRPBF)
Design Notes
Estimated: At 33A continuous drain current and 42 mOhm RDS(on), the IRFR4615TRLPBF dissipates approximately 45.6W at full load. The DPAK package with minimal copper (1 sq inch 2oz) has theta_JA of approximately 50 C/W, causing a junction temperature rise of 2280C - well above the 175C limit. To use the part at continuous currents above 5A, attach the tab to at least 3-4 sq inches of 2oz copper pour, or use an external heatsink. The 144W power dissipation rating only applies at TC=25C with infinite heatsink; realistic PCB designs must derate significantly.
Solder the DPAK tab directly to a PCB copper pour with thermal vias to the opposite-side copper or internal ground plane. Place the gate drive resistor (typically 10-22 Ohm) as close to the gate pin as possible to minimize parasitic inductance and prevent gate ringing. Keep the gate-trace away from the drain node to minimize Miller coupling. For high-frequency switching above 100 kHz, use a Kelvin-source connection by routing the source sense through a separate trace to the driver ground reference.
Do not exceed VGS of +/- 20V absolute maximum - the gate oxide will rupture. Ensure the gate driver pulls the IRFR4615TRLPBF fully on (VGS >= 10V) for the rated RDS(on); partial enhancement at 4-5V VGS dramatically increases conduction losses. Avoid operating near the SOA boundary with high VDS and high ID simultaneously - refer to the datasheet SOA curve. The avalanche energy rating (109 mJ) is a single-pulse rating; repetitive avalanche events will overheat the die.
Use a minimum 2oz copper pour under the DPAK tab to spread heat from the die. Add an array of thermal vias (typically 9-16 vias, 0.3mm drill) directly under the tab to conduct heat to inner copper planes. Place the input bulk capacitor and bootstrap capacitor close to the IC to minimize high-current loop inductance. For high-current applications, use wide top-side copper traces (>= 5mm) on drain and source paths to handle 33A continuous current without significant trace heating.
Compliance Information
PBF suffix indicates Pb-free / RoHS compliant per Infineon. Not AEC-Q100/101 qualified - automotive safety applications should use AEC-Q100 qualified alternatives. REACH compliance per Infineon product declaration.
