TJ15P04M3 MOSFET — Specifications & Equivalents

About the TJ15P04M3

The TJ15P04M3 is a MOSFET with a drain–source voltage (V_DS) rating of 40 V and a continuous drain current (I_D) of 15 A. It can dissipate up to 29 W and is rated to a junction temperature of 150 °C. It is supplied in the DPAK package.

At a glance

• Type: MOSFET
• Max drain–source voltage (V_DS): 40 V
• Max continuous drain current (I_D): 15 A
• Power dissipation (P_D): 29 W
• Max junction temperature (T_J): 150 °C
• Package: DPAK

Typical applications

With its 40 V drain–source rating the TJ15P04M3 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.

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.

Switching behaviour is characterised by an output capacitance (C_oss) of 170 pF, which together with the gate drive determines switching loss and the practical upper frequency limit.

Choosing a replacement for the TJ15P04M3

A drop-in substitute for the TJ15P04M3 should match its polarity and offer a drain–source rating of at least 40 V and a continuous drain current rating of at least 15 A.

Mechanically, check the replacement against the DPAK 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 TJ15P04M3?

The TJ15P04M3 is a MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 40 V drain-source and 15 A continuous drain current.

What is the maximum voltage of the TJ15P04M3?

The TJ15P04M3 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 TJ15P04M3 handle?

It is rated for 15 A of continuous drain current, with power dissipation limited to 29 W. Real-world capability depends on your heatsinking and ambient temperature.

What package does the TJ15P04M3 come in?

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

What can I use to replace the TJ15P04M3?

This page lists 17 candidate equivalents matched on electrical ratings and package. Any replacement should meet or exceed the original voltage, current and dissipation figures and use a compatible drive level.