JBL083M MOSFET — Specifications & Equivalents

About the JBL083M

The JBL083M is a MOSFET with a drain–source voltage (V_DS) rating of 80 V and a continuous drain current (I_D) of 242 A. It can dissipate up to 286 W and is rated to a junction temperature of 150 °C. It is supplied in the POWER-JE-10X12 package.

At a glance

• Type: MOSFET
• Max drain–source voltage (V_DS): 80 V
• Max continuous drain current (I_D): 242 A
• Power dissipation (P_D): 286 W
• Max junction temperature (T_J): 150 °C
• Package: POWER-JE-10X12

Typical applications

With its 80 V drain–source rating the JBL083M sits in the mid-range class of switching MOSFETs, typically found in 24 V and 48 V industrial and battery systems, motor drives and H-bridges and load and hot-swap switching.

The 242 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 ±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 1224 pF, which together with the gate drive determines switching loss and the practical upper frequency limit.

Choosing a replacement for the JBL083M

A drop-in substitute for the JBL083M should match its polarity and offer a drain–source rating of at least 80 V and a continuous drain current rating of at least 242 A.

Mechanically, check the replacement against the POWER-JE-10X12 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 JBL083M?

The JBL083M is a MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 80 V drain-source and 242 A continuous drain current.

What is the maximum voltage of the JBL083M?

The JBL083M has a maximum drain-source voltage (Vds) of 80 V. Treat this as an absolute maximum and design with margin, especially when switching inductive loads.

How much current can the JBL083M handle?

It is rated for 242 A of continuous drain current, with power dissipation limited to 286 W. Real-world capability depends on your heatsinking and ambient temperature.

What package does the JBL083M come in?

It is listed in POWER-JE-10X12. Verify the pinout of the specific variant, as one outline can carry different pin assignments.

What can I use to replace the JBL083M?

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.