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Infineon Technologies IPB45N04S4L-08

IPB45N04S4L-08 N-Channel MOSFET, 40 V, 45 A, 7.9 mOhm

MPNIPB45N04S4L-08
End of Life

Infineon OptiMOS™T2 IPB45N04S4L-08, N-Channel MOSFET, 40 V Vdss, 45 A Id, 7.9 mOhm Rds(on) max @ 10 V, 30 nC Qg, -55 to 175 °C, PG-TO263-3-2.

$0.4Ref. price · indicative, final on quote
PackagingTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

IPB45N04S4L-08 Technical Specifications
ParameterValue
SeriesOptiMOS™T2
FET typeN-Channel
Mounting typeSurface Mount
Drain to source voltage40 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C45A (Tc)
Power dissipation45W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageBulk
Vgs+20V, -16V
TechnologyMOSFET (Metal Oxide)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Vgs(th) (Max) @ id2.2V @ 17µA
Rds on (Max) @ id, vgs7.9mOhm @ 45A, 10V
Gate charge (Qg) (Max) @ vgs30 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds2340 pF @ 25 V

Product details

Gate charge and switching — sizing the driver

Total gate charge is 30 nC at 10 V, which means a standard gate-driver IC delivering 1 A peak can switch this MOSFET in under 30 ns. The input capacitance of 2340 pF at 25 V drain-source is moderate — the driver sees a capacitive load that rises with the Miller plateau, but the 30 nC Qg keeps the switching loss manageable up to several hundred kHz.

175 °C junction — headroom for harsh environments

This matters for designs where the MOSFET sits near a hot exhaust manifold, in a downhole tool, or inside a sealed enclosure with limited airflow — the 175 °C Tj(max) allows the part to survive transient overloads that would push a 150 °C-rated device past its absolute maximum.

PG-TO263-3-2 — reflow assembly and thermal interface

The package is a standard TO-263-3 (D²Pak) with the supplier code PG-TO263-3-2. The three-lead footprint matches the industry-standard D²Pak land pattern, so no custom footprint is needed.

Frequently asked questions

What is the Rds(on) of IPB45N04S4L-08?

The maximum on-resistance is 7.9 mOhm at a drain current of 45 A and a gate-source voltage of 10 V. The drive voltage range for achieving the rated Rds(on) is 4.5 V to 10 V.

What is the gate charge of IPB45N04S4L-08?

Total gate charge is 30 nC at a gate-source voltage of 10 V. This figure is used to calculate the average gate drive current for a given switching frequency.

What is the closest pin-compatible alternative to IPB45N04S4L-08?

The OptiMOS™T2 family includes several 40 V, D²Pak devices with varying Rds(on) and current ratings — a parametric search on the family will show the closest match by Rds(on) and current. For a direct pin-compatible drop-in, confirm the footprint and gate-drive voltage match the BOM requirements.