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STMicroelectronics MJB44H11T4-A — Logic ICs

MJB44H11T4-A NPN Transistor, 80V 10A, AEC-Q101, D²PAK

MPNMJB44H11T4-A
End of Life

STMicroelectronics MJB44H11T4-A, Automotive AEC-Q101 NPN transistor, 80 V Vce, 10 A Ic, 50 W max power, D²PAK (TO-263) surface mount, 150°C junction temperature.

$1.32Ref. price · indicative, final on quote
STMicroelectronics MJB44H11T4-A datasheet (PDF)
PackagingTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q101
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MJB44H11T4-A specifications
ParameterValue
SeriesAutomotive, AEC-Q101
MountingSurface Mount
FET typeNPN
Voltage - collector emitter breakdown80 V
Current - collector (Ic)10 A
Current - collector cutoff10µA
DC current gain (hFE) (Min) @ ic, vce40 @ 4A, 1V
Power - max50 W
Operating temperature150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Vce saturation (Max) @ ib, ic1V @ 400mA, 8A

Product details

Automotive-grade NPN power transistor in D²PAK

It is qualified to AEC-Q101, making it suitable for automotive under-hood and chassis-domain applications such as solenoid drivers, motor pre-drivers, and DC-DC converter stages. The device comes in a D²PAK (TO-263-3) surface-mount package with a tab for heatsinking, and is rated for a junction temperature up to 150°C.

80 V / 10 A — sizing the load and voltage headroom

The 50 W power ceiling means continuous operation at 10 A requires the tab to be well-thermally coupled to the PCB or a heatsink — the D²PAK footprint is designed for that. The saturation voltage is specified at 1 V maximum at 8 A collector current with 400 mA base drive, which keeps conduction losses manageable in switching applications.

Package and mounting — D²PAK with tab

The D²PAK (TO-263-3) package has two leads plus the tab, which is the collector. Surface-mount reflow profile follows standard MSL 1 (if the reel is sealed) — no special bake needed unless the moisture barrier has been breached.

Frequently asked questions

Is MJB44H11T4-A AEC-Q101 qualified?

Yes, the MJB44H11T4-A is part of the Automotive, AEC-Q101 series, meaning it has passed the automotive-grade qualification tests for reliability under harsh conditions.

Can MJB44H11T4-A replace MJB44H11?

The MJB44H11T4-A is the AEC-Q101 qualified variant of the standard MJB44H11. It shares the same 80 V / 10 A ratings and D²PAK package, so it is a drop-in replacement for designs that require automotive-grade qualification or want the extra reliability margin.