IRFP460A MOSFET — Specifications & Equivalents
Manufacturer: Commonly produced by International Rectifier (now Infineon)
About the IRFP460A
The IRFP460A is an N-channel MOSFET with a drain–source voltage (VDS) rating of 500 V, a continuous drain current (ID) of 20 A and an on-resistance (RDS(on)) of 0.27 Ω. It can dissipate up to 280 W and is rated to a junction temperature of 150 °C. It is supplied in the TO247AC package.
At a glance
- Type: N-channel MOSFET
- Max drain–source voltage (VDS): 500 V
- Max continuous drain current (ID): 20 A
- On-resistance (RDS(on)): 0.27 Ω
- Power dissipation (PD): 280 W
- Max junction temperature (TJ): 150 °C
- Package: TO247AC
- Manufacturer: Commonly produced by International Rectifier (now Infineon)
Typical applications
With its 500 V drain–source rating the IRFP460A sits in the high-voltage (offline) class of switching MOSFETs, typically found in primary-side switching in offline SMPS (flyback, forward and quasi-resonant), active PFC boost stages, half-bridge and full-bridge inverters, induction heating and electronic ballasts and BLDC and AC motor drives. The rating leaves usable margin above the ~325 V DC bus obtained by rectifying 230 VAC mains, which is why this class dominates offline power supplies.
Gate drive and switching notes
Keep gate–source voltage within the ±30 V maximum; exceeding it punctures the gate oxide and destroys the device permanently.
Switching behaviour is characterised by a rise time of 55 ns and an output capacitance (Coss) of 480 pF, which together with the gate drive determines switching loss and the practical upper frequency limit.
Choosing a replacement for the IRFP460A
A drop-in substitute for the IRFP460A must be the same N-channel type and offer a drain–source rating of at least 500 V, a continuous drain current rating of at least 20 A and an on-resistance no higher than 0.27 Ω if efficiency and heat matter.
Mechanically, check the replacement against the TO247AC footprint and confirm the pin order — parts sharing a package outline do not always share a pinout.
Where the application switches inductive loads or runs near the voltage limit, keep extra headroom rather than choosing a part that only just meets the original numbers.
Frequently asked questions
What is the IRFP460A?
The IRFP460A is an N-channel MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 500 V drain-source and 20 A continuous drain current.
What is the maximum voltage of the IRFP460A?
The IRFP460A has a maximum drain-source voltage (Vds) of 500 V. Treat this as an absolute maximum and design with margin, especially when switching inductive loads.
How much current can the IRFP460A handle?
It is rated for 20 A of continuous drain current, with power dissipation limited to 280 W. Real-world capability depends on your heatsinking and ambient temperature.
What is the on-resistance of the IRFP460A?
On-resistance (Rds(on)) is 0.27 Ω. Multiply by the square of your load current to estimate conduction loss.
What package does the IRFP460A come in?
It is listed in TO247AC. Verify the pinout of the specific variant, as one outline can carry different pin assignments.
What can I use to replace the IRFP460A?
No verified equivalents are listed yet. Choose a part of the same polarity that meets or exceeds every rating above and shares a compatible package and pinout.
Key Specifications
| Type | MOSFET |
|---|---|
| Channel Type | N -Channel |
| Drain-Source Voltage (Vds) | 500 V |
| Gate-Source Voltage (Vgs) | 30 V |
| Drain Current (Id) | 20 A |
| Drain-Source On-Resistance (Rds) | 0.27 |
| Rise Time (tr) | 55 nS |
| Output Capacitance (Coss) | 480 pF |
| Junction Temperature (Tj) | 150 °C |
| Package | TO247AC |
| Power Dissipation (Pd) | 280 W |
Equivalent & Replacement Parts
No verified equivalents are listed for IRFP460A yet.