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STMicroelectronics STB45N30M5 — Discrete Semiconductors

STB45N30M5 MDmesh M5 N-Channel MOSFET, 300 V, 53 A

MPNSTB45N30M5
End of Life

STMicroelectronics MDmesh™ M5 N-Channel MOSFET, 300 V Vdss, 53 A continuous drain, 40 mOhm Rds(on) at 10 V gate drive, 95 nC gate charge, TO-263-3 (D²Pak) surface-mount package, -55°C to 150°C junction temperature.

$7.05Ref. price · indicative, final on quote
PackagingTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
RoHSROHS3 Compliant
SeriesMDmesh™ M5
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STB45N30M5 specifications
ParameterValue
SeriesMDmesh™ M5
FET typeN-Channel
MountingSurface Mount
Drain to source voltage300 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C53A (Tc)
Power dissipation250W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±25V
TechnologyMOSFET (Metal Oxide)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Vgs(th) (Max) @ id5V @ 250µA
Rds on (Max) @ id, vgs40mOhm @ 26.5A, 10V
Gate charge (Qg) (Max) @ vgs95 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds4240 pF @ 100 V

Product details

On-resistance and gate charge — the switching loss trade-off

Package and thermal management in TO-263

Housed in the TO-263-3 (D²Pak) surface-mount package, the STB45N30M5 dissipates up to 250 W at the case.

The wide temperature margin allows derating for reliability in long-life designs.

Frequently asked questions

What is the maximum operating temperature of STB45N30M5?

The junction temperature range is -55°C to 150°C. This is the operating junction temperature, not the ambient — derating applies based on power dissipation and thermal resistance.

Is STB45N30M5 RoHS compliant?

Yes, the STB45N30M5 is ROHS3 compliant, meaning it meets the current European Union directive on restriction of hazardous substances for lead-free soldering processes.

Can I use STB45N30M5 in place of STB45N30M4?

The STB45N30M5 is from the same MDmesh M5 family as the STB45N30M4 and shares the same TO-263 package and 300 V rating. The key difference is Rds(on): the M5 variant offers a lower 40 mOhm maximum versus the M4's higher on-resistance. If your design relies on the M4's specific switching characteristics or gate charge, verify the M5's 95 nC Qg against your driver's capability before substitution.