Технические характеристики
IRF4905STRLPBF is Infineon’s HEXFET® surface-mount P-channel power MOSFET with TO-263 (D2PAK) package, suffix STRLPBF stands for tape-and-reel lead-free bulk packaging for automated SMT mass production. It delivers ultra-low conduction loss, high current capacity and full avalanche ruggedness, widely used in high-current power switching, battery reverse protection and industrial power management circuits.
👉 It differs from through-hole TO-220 packaged IRF4905PBF. This D2PAK SMD version features superior thermal dissipation on PCB copper pads, compact footprint for dense power boards, optimized for space-limited high-power DC switching systems.
Основные характеристики
- Core Electrical Ratings
- Channel type: Single P-channel HEXFET power MOSFET
- VDS (Drain-Source Voltage): -55V maximum
- Continuous drain current ID: -74A (Tc=25°C)
- Ultra-low RDS(on): Max 20mΩ @ VGS=-20V, minimizes I²R heat loss
- Maximum power dissipation PD: 200W at 25°C case temperature
- Gate voltage range: ±20V absolute maximum; threshold VGS(th): -2V ~ -4V
- Fully avalanche-rated design, withstands inductive load voltage surges without damage
- Fast Switching & Capacitance Parameters
- Turn-on delay: 20ns; Turn-off delay: 51ns
- Total gate charge Qg: 180nC, balanced switching speed for hard/soft switching topologies
- Low input/output capacitance reduces gate drive power consumption for high-frequency PWM control
- Thermal & Environmental Performance
- Maximum junction operating temperature Tj: 175°C, wide industrial temperature tolerance
- Operating range: -55°C ~ +175°C
- D2PAK large exposed thermal pad enables efficient heat sinking via PCB copper area
- RoHS lead-free, halogen-free compliant, meets global green electronics standards
- Package & Assembly Specs
- Package: 3-pin TO-263 (D2PAK) surface mount
- Suffix STRLPBF = tape-and-reel lead-free packaging for high-volume SMT assembly
- Low thermal resistance between die and exposed pad for high-current continuous operation
Типовые применения
Battery power reverse polarity protection for industrial equipment, AGVs and portable instruments
High-current load power switch for 12V/24V/48V DC power distribution boards
Synchronous buck boost converters, battery charge & discharge management circuits
Motor drive power switches for small BLDC motors, fans and pumps
Automotive auxiliary power control, car audio and lighting driver modules
Solar small power controller, energy storage board low-side power gating
UPS uninterruptible power supply DC bus switching
Industrial PLC and servo drive auxiliary power circuit protection
Portable welding equipment, test bench high-current switching modules
LXB Semicon supplies original Infineon IRF4905STRLPBF P-channel power MOSFET
