CS140N10A MOSFET — Specifications & Equivalents

About the CS140N10A

The CS140N10A is a MOSFET with a drain–source voltage (V_DS) rating of 100 V and a continuous drain current (I_D) of 75 A. It can dissipate up to 150 W and is rated to a junction temperature of 150 °C. It is supplied in the TO-254DL package.

At a glance

• Type: MOSFET
• Max drain–source voltage (V_DS): 100 V
• Max continuous drain current (I_D): 75 A
• Power dissipation (P_D): 150 W
• Max junction temperature (T_J): 150 °C
• Package: TO-254DL

Typical applications

With its 100 V drain–source rating the CS140N10A sits in the medium-voltage class of switching MOSFETs, typically found in 48 V and 96 V distribution systems, solar and telecom power stages, DC motor drives and intermediate-bus DC-DC converters.

The 75 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 ±17 V maximum; exceeding it punctures the gate oxide and destroys the device permanently.

Choosing a replacement for the CS140N10A

A drop-in substitute for the CS140N10A should match its polarity and offer a drain–source rating of at least 100 V and a continuous drain current rating of at least 75 A.

Mechanically, check the replacement against the TO-254DL 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 CS140N10A?

The CS140N10A is a MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 100 V drain-source and 75 A continuous drain current.

What is the maximum voltage of the CS140N10A?

The CS140N10A has a maximum drain-source voltage (Vds) of 100 V. Treat this as an absolute maximum and design with margin, especially when switching inductive loads.

How much current can the CS140N10A handle?

It is rated for 75 A of continuous drain current, with power dissipation limited to 150 W. Real-world capability depends on your heatsinking and ambient temperature.

What package does the CS140N10A come in?

It is listed in TO-254DL. Verify the pinout of the specific variant, as one outline can carry different pin assignments.

What can I use to replace the CS140N10A?

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.