F5028 MOSFET — Specifications & Equivalents

About the F5028

The F5028 is an N-channel MOSFET with a drain–source voltage (V_DS) rating of 40 V, a continuous drain current (I_D) of 28 A and an on-resistance (R_DS(on)) of 0.04 Ω. It can dissipate up to 50 W and is rated to a junction temperature of 150 °C. It is supplied in the TPACK package.

At a glance

• Type: N-channel MOSFET
• Max drain–source voltage (V_DS): 40 V
• Max continuous drain current (I_D): 28 A
• On-resistance (R_DS(on)): 0.04 Ω
• Power dissipation (P_D): 50 W
• Max junction temperature (T_J): 150 °C
• Package: TPACK

Typical applications

With its 40 V drain–source rating the F5028 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 low 0.04 Ω on-resistance keeps conduction loss down, which suits synchronous rectification and continuous high-current paths.

Choosing a replacement for the F5028

A drop-in substitute for the F5028 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 28 A and an on-resistance no higher than 0.04 Ω if efficiency and heat matter.

Mechanically, check the replacement against the TPACK 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 F5028?

The F5028 is an N-channel MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 40 V drain-source and 28 A continuous drain current.

What is the maximum voltage of the F5028?

The F5028 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 F5028 handle?

It is rated for 28 A of continuous drain current, with power dissipation limited to 50 W. Real-world capability depends on your heatsinking and ambient temperature.

What is the on-resistance of the F5028?

On-resistance (Rds(on)) is 0.04 Ω. Multiply by the square of your load current to estimate conduction loss.

What package does the F5028 come in?

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

What can I use to replace the F5028?

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.