2N6915 MOSFET — Specifications & Equivalents

About the 2N6915

The 2N6915 is a MOSFET with a drain–source voltage (V_DS) rating of 50 V and a continuous drain current (I_D) of 45 A. It can dissipate up to 125 W and is rated to a junction temperature of 150 °C. It is supplied in the TO3 package.

At a glance

• Type: MOSFET
• Max drain–source voltage (V_DS): 50 V
• Max continuous drain current (I_D): 45 A
• Power dissipation (P_D): 125 W
• Max junction temperature (T_J): 150 °C
• Package: TO3
• Manufacturer: Multi-source (JEDEC registered part number)

Typical applications

With its 50 V drain–source rating the 2N6915 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

Switching behaviour is characterised by an output capacitance (C_oss) of 2100 pF, which together with the gate drive determines switching loss and the practical upper frequency limit.

Choosing a replacement for the 2N6915

A drop-in substitute for the 2N6915 should match its polarity and offer a drain–source rating of at least 50 V and a continuous drain current rating of at least 45 A.

Mechanically, check the replacement against the TO3 footprint and confirm the pin order — parts sharing a package outline do not always share a pinout.

Because 2N6915 is a JEDEC-registered part number rather than one vendor's proprietary series, it is produced by several manufacturers. Datasheet figures vary slightly between them, so check the datasheet of the brand you actually buy — this also makes like-for-like sourcing easier.

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 2N6915?

The 2N6915 is a MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 50 V drain-source and 45 A continuous drain current.

What is the maximum voltage of the 2N6915?

The 2N6915 has a maximum drain-source voltage (Vds) of 50 V. Treat this as an absolute maximum and design with margin, especially when switching inductive loads.

How much current can the 2N6915 handle?

It is rated for 45 A of continuous drain current, with power dissipation limited to 125 W. Real-world capability depends on your heatsinking and ambient temperature.

What package does the 2N6915 come in?

It is listed in TO3. Verify the pinout of the specific variant, as one outline can carry different pin assignments.

What can I use to replace the 2N6915?

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.