IRFR2405TRLPBF - 55V 56A N-Ch HEXFET MOSFET DPAK | Infineon
MPN: IRFR2405TRLPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.18 | $1.18 |
| 10 | $1.02 | $10.20 |
| 100 | $0.86 | $86.00 |
| 500 | $0.74 | $370.00 |
| 1,000 | $0.63 | $630.00 |
| 3,000 | $0.55 | $1,650.00 |
Drop-in alternatives for IRFR2405TRLPBF 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:
IRFR2405TRPBF
β Drop-Inβ In Stock
$0.61 / Unit
View Datasheet βAUIRFR2405TR
β Drop-Inπ Reference alternative (not in catalog)
IRFR3711ZPBF
β Drop-Inπ Reference alternative (not in catalog)
IRFR2905ZPBF
β Drop-Inπ Reference alternative (not in catalog)
IRFR1010ZPBF
β Drop-Inπ Reference alternative (not in catalog)
SUM55N06-16P-E3
β Drop-Inπ Reference alternative (not in catalog)
NTD6416AN-1G
β Drop-Inπ Reference alternative (not in catalog)
IRFR2405TRLPBF Maximum Ratings & Electrical Characteristics
| Transistor Type | N-Channel MOSFET |
| Technology | HEXFET (IR MOSFET, 7th generation) |
| Drain-Source Voltage (VDS) | 55 V |
| Continuous Drain Current (ID) at Tc | 56 A |
| Pulsed Drain Current (IDM) | 200 A (typical, per datasheet family) |
| On-Resistance RDS(on) max @ VGS=10V | 16 mOhm |
| Gate Charge (Qg) typical | 70 nC |
| Power Dissipation (PD) at Tc | 110 W |
| Gate-Source Voltage (VGS) max | Β±20 V |
| Operating Temperature Range | -55 C to +175 C (junction) |
| Package | TO-252AA (DPAK), 3-pin (2 + Tab) |
| Mounting Type | Surface Mount |
| Avalanche Energy Rated | Yes (HEXFET ruggedized design) |
| Lead-Free / RoHS | Yes, PBF suffix indicates lead-free and RoHS compliant |
| Packaging | Tape & Reel (TR) |
IRFR2405TRLPBF Pin Configuration
| Pin 1 | Gate β Gate control input; positive VGS turns the device on |
| Pin 2 | Drain β Power drain terminal; electrically and thermally connected to the tab |
| Pin 3 | Source β Source terminal; return path for gate drive and load current |
| Pin TAB | Drain (Tab) β Metal tab electrically connected to Drain; serves as primary thermal path to PCB copper |
IRFR2405 Safe Operating Area
Typical Applications
IRFR2405TRLPBF is suitable for 6 applications: Brushed DC Motor Drive (H-Bridge), Solenoid and Relay Driver, Battery Management and Load Switch, Synchronous Rectifier in Secondary Side, Power Load Switch (Hot Swap), Uninterruptible Power Supply (UPS) Output Stage.
Brushed DC Motor Drive (H-Bridge)
The IRFR2405TRLPBF suits low-side switching positions in 12V/24V brushed DC motor H-bridges, where its 16 mOhm RDS(on) keeps conduction losses below 5W at 15A continuous, while 200A pulsed rating handles motor inrush. The 55V VDS provides ample headroom for 24V bus transients. In a typical 20kHz PWM loop, low 70 nC Qg allows direct TTL-level gate drive without bootstrap pumps, simplifying the design.
Recommended
Solenoid and Relay Driver
For 12V/24V automotive solenoids and relay-replacement circuits, the IRFR2405TRLPBF provides avalanche-rated switching that absorbs inductive kickback without external TVS clamps. The 110W dissipation rating at Tc supports steady-state currents up to 56A in continuous solenoid hold applications. Pair the device with a flyback diode and gate resistor of 10-100 ohm for clean switching.
Recommended
Battery Management and Load Switch
In lithium battery packs and UPS systems, the IRFR2405TRLPBF acts as a low-loss load disconnect switch. At 30A continuous load on a 24V rail, the 16 mOhm RDS(on) drops only 0.48V across the device, dissipating 14.4W manageable with minimal heatsinking. The 175 C maximum junction temperature supports hot environments, and PBF marking ensures RoHS compliance for portable battery products.
Recommended
Synchronous Rectifier in Secondary Side
On the secondary side of isolated DC-DC converters, the IRFR2405TRLPBF can replace Schottky diodes to gain 0.5-1% efficiency. Its low Qg of 70 nC and fast body diode recovery suit 100-300 kHz switching frequencies. The 55V rating handles 24V outputs with margin, and the DPAK footprint supports compact SMD layouts in point-of-load converters.
Recommended
Power Load Switch (Hot Swap)
The IRFR2405TRLPBF works as a hot-swap controller pass element for plug-in cards and industrial modules. During card insertion, the MOSFET limits inrush by operating in linear region; once fully enhanced, the 16 mOhm RDS(on) carries full load with minimal loss. The 56A continuous rating exceeds typical 12V/10A hot-swap requirements, providing 5x design margin.
Recommended
Uninterruptible Power Supply (UPS) Output Stage
In offline UPS and inverter outputs, the IRFR2405TRLPBF drives low-frequency 50/60 Hz square-wave inverter stages or high-frequency PWM stages. Its rugged avalanche capability absorbs reverse energy from inductive transformer windings, while 110W power dissipation supports continuous 56A operation with proper heatsinking. The DPAK package allows dense PCB layouts in space-constrained UPS modules.
Recommended
Recommended Products Summary
Engineering reference data for IRFR2405TRLPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IRFR2405TRPBF | AUIRFR2405TR | IRFR3711ZPBF | SUM55N06-16P-E3 | NTD6416AN-1G |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Vishay Intertechnology | onsemi |
| Package | TO-252AA (DPAK) | TO-252AA (DPAK) - same | TO-252AA (DPAK) - same | TO-252AA (DPAK) - same | TO-252AA (DPAK) - same | TO-252AA (DPAK) - same |
| VDS (Drain-Source Voltage) | 55 V | 55 V | 55 V | 100 V | 60 V | 100 V |
| Continuous Drain Current (Tc) | 56 A | 56 A | 56 A | 42 A | 55 A | 17 A |
| RDS(on) max @ VGS=10V | 16 mOhm | 16 mOhm | 16 mOhm | 6 mOhm | 16 mOhm | 70 mOhm |
| Gate Charge (Qg) typical | 70 nC | 70 nC | 70 nC | 110 nC | [DATA_NEEDED] | [DATA_NEEDED] |
| Power Dissipation (Tc) | 110 W | 110 W | 110 W | 79 W | 107 W | 55 W |
| Automotive Qualified (AEC-Q101) | No (commercial) | No | Yes (AEC-Q101) | No | No | No |
| Approx. Unit Price (qty 1, USD) | 1.18 | 0.95 | 1.85 | 1.45 | 1.05 | 0.85 |
Key Differentiators
- Proven seventh-generation HEXFET silicon in DPAK (vs AUIRFR2405TR)
- Higher voltage headroom than IRFR2405 family default (vs IRFR3711ZPBF)
- Cross-brand pin-compatibility enables second sourcing (vs SUM55N06-16P-E3)
Design Notes
Estimated: at 30A continuous load on a DPAK mounted to 1 oz copper with 1 square inch of pour, the IRFR2405TRLPBF dissipates approximately 14.4W (30A^2 * 16 mOhm). With DPAK junction-to-ambient thermal resistance of approximately 50 C/W on minimal copper, junction rise would be 720 C - clearly impossible. Practical mounting requires at least 4-6 square inches of copper, or a small clip-on heatsink for continuous 30A+ operation. Always consult the datasheet SOA curve for your specific VDS/ID operating point before relying on a heatsink-free design.
The DPAK thermal pad must be soldered to a copper pour that serves as both electrical drain contact and thermal dissipation path. Use thermal vias (typically 0.3mm diameter, 6-9 vias in a 3x3 array) under the tab to conduct heat to inner PCB copper layers. Maintain at least 5mm clearance between the drain pad and any signal trace routed on the same layer to prevent high-voltage arcing under fault conditions.
The IRFR2405TRLPBF gate is rated at +/-20V VGS maximum. Exceeding this - even briefly during switching transients from inductive loads - can permanently damage the gate oxide. Add a 10k-100k resistor from gate to source to ensure the device stays off when the gate driver is floating, and add a Zener clamp (15V) from gate to source for protection against VDS-to-VGS coupling transients in half-bridge topologies.
Keep the gate drive loop (gate-driver output -> gate -> source -> gate-driver ground return) as small as possible - ideally under 1 square cm of loop area - to minimize parasitic inductance that causes gate ringing and false triggering. Place the gate drive resistor (typically 10-100 ohm) close to the MOSFET gate pin, not at the driver output, to dampen the LC tank formed by trace inductance and MOSFET input capacitance (Ciss).
Compliance Information
PBF suffix denotes lead-free plating and RoHS compliance per Infineon product marking. Commercial grade only; for AEC-Q101 automotive qualification, select AUIRFR2405 variant. REACH compliance inferred from manufacturer declaration.
