FCH072N60FF085 MOSFET — Specifications & Equivalents

About the FCH072N60FF085

The FCH072N60FF085 is an N-channel MOSFET with a drain–source voltage (V_DS) rating of 600 V, a continuous drain current (I_D) of 52 A and an on-resistance (R_DS(on)) of 0.072 Ω. It can dissipate up to 481 W and is rated to a junction temperature of 150 °C. It is supplied in the TO247 package.

At a glance

• Type: N-channel MOSFET
• Max drain–source voltage (V_DS): 600 V
• Max continuous drain current (I_D): 52 A
• On-resistance (R_DS(on)): 0.072 Ω
• Power dissipation (P_D): 481 W
• Max junction temperature (T_J): 150 °C
• Package: TO247

Typical applications

With its 600 V drain–source rating the FCH072N60FF085 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.

The 52 A current rating puts it in high-current territory, where conduction loss (I² × R_DS(on)) and thermal design usually matter more than switching loss. Budget for adequate copper area and a heatsink.

Gate drive and switching notes

Keep gate–source voltage within the ±20 V maximum; exceeding it punctures the gate oxide and destroys the device permanently.

Choosing a replacement for the FCH072N60FF085

A drop-in substitute for the FCH072N60FF085 must be the same N-channel type and offer a drain–source rating of at least 600 V, a continuous drain current rating of at least 52 A and an on-resistance no higher than 0.072 Ω if efficiency and heat matter.

Mechanically, check the replacement against the TO247 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 FCH072N60FF085?

The FCH072N60FF085 is an N-channel MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 600 V drain-source and 52 A continuous drain current.

What is the maximum voltage of the FCH072N60FF085?

The FCH072N60FF085 has a maximum drain-source voltage (Vds) of 600 V. Treat this as an absolute maximum and design with margin, especially when switching inductive loads.

How much current can the FCH072N60FF085 handle?

It is rated for 52 A of continuous drain current, with power dissipation limited to 481 W. Real-world capability depends on your heatsinking and ambient temperature.

What is the on-resistance of the FCH072N60FF085?

On-resistance (Rds(on)) is 0.072 Ω. Multiply by the square of your load current to estimate conduction loss.

What package does the FCH072N60FF085 come in?

It is listed in TO247. Verify the pinout of the specific variant, as one outline can carry different pin assignments.

What can I use to replace the FCH072N60FF085?

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.