F5026 MOSFET — Specifications & Equivalents

About the F5026

The F5026 is an N-channel MOSFET with a drain–source voltage (V_DS) rating of 40 V, a continuous drain current (I_D) of 52 A and an on-resistance (R_DS(on)) of 0.02 Ω. It can dissipate up to 85 W and is rated to a junction temperature of 150 °C. It is supplied in the TO220AB package.

At a glance

• Type: N-channel MOSFET
• Max drain–source voltage (V_DS): 40 V
• Max continuous drain current (I_D): 52 A
• On-resistance (R_DS(on)): 0.02 Ω
• Power dissipation (P_D): 85 W
• Max junction temperature (T_J): 150 °C
• Package: TO220AB

Typical applications

With its 40 V drain–source rating the F5026 sits in the low-voltage class of switching MOSFETs, typically found in 12 V and 24 V automotive and industrial rails, synchronous buck converters, load switching and reverse-polarity protection and H-bridges for small motors.

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.

The low 0.02 Ω on-resistance keeps conduction loss down, which suits synchronous rectification and continuous high-current paths.

Choosing a replacement for the F5026

A drop-in substitute for the F5026 must be the same N-channel type and offer a drain–source rating of at least 40 V, a continuous drain current rating of at least 52 A and an on-resistance no higher than 0.02 Ω if efficiency and heat matter.

Mechanically, check the replacement against the TO220AB 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 F5026?

The F5026 is an N-channel MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 40 V drain-source and 52 A continuous drain current.

What is the maximum voltage of the F5026?

The F5026 has a maximum drain-source voltage (Vds) of 40 V. Treat this as an absolute maximum and design with margin, especially when switching inductive loads.

How much current can the F5026 handle?

It is rated for 52 A of continuous drain current, with power dissipation limited to 85 W. Real-world capability depends on your heatsinking and ambient temperature.

What is the on-resistance of the F5026?

On-resistance (Rds(on)) is 0.02 Ω. Multiply by the square of your load current to estimate conduction loss.

What package does the F5026 come in?

It is listed in TO220AB. Verify the pinout of the specific variant, as one outline can carry different pin assignments.

What can I use to replace the F5026?

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.