Skip to main content
Renesas Electronics RJK0391DPA-00#J5A

RJK0391DPA-00#J5A N-Channel MOSFET, 30 V, 50 A, 2.9 mOhm

MPNRJK0391DPA-00#J5A
End of Life

Renesas RJK0391DPA-00#J5A, N-Channel Power MOSFET, 30 V drain-to-source, 50 A continuous drain, 2.9 mOhm Rds(on) at 10 V, 34 nC gate charge, 8-PowerWDFN / 8-WPAK package, surface mount.

$0.90001Ref. price · indicative, final on quote
Packaging8-PowerWDFN
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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

RJK0391DPA-00#J5A Technical Specifications
ParameterValue
FET typeN-Channel
Mounting typeSurface Mount
Drain to source voltage30 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C50A (Ta)
Power dissipation50W (Tc)
Operating temperature150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
Case8-PowerWDFN
Vgs(th) (Max) @ id2.5V @ 1mA
Rds on (Max) @ id, vgs2.9mOhm @ 25A, 10V
Gate charge (Qg) (Max) @ vgs34 nC @ 4.5 V
Input capacitance (Ciss) (Max) @ vds5600 pF @ 10 V

Product details

Gate charge and switching budget

Gate charge is 34 nC maximum at 4.5 V — a moderate figure that keeps the driver current manageable at typical switching frequencies. At 100 kHz, the average gate drive current is about 3.4 mA, well within the capability of a standard MOSFET driver. The input capacitance is 5600 pF at 10 V drain bias, which sets the switching energy and the driver's peak current requirement during the Miller plateau.

Package and thermal path

The part comes in an 8-PowerWDFN package, supplier device package 8-WPAK (3). The 150 °C maximum junction temperature allows headroom for high-current operation in constrained enclosures, but the thermal resistance depends on the board's copper area and airflow.

Frequently asked questions

What is the closest functional second-source for RJK0391DPA-00#J5A?

The NP179N055TUK--AY is a higher-voltage (55 V), higher-current (180 A) N-channel MOSFET with a 1.75 mOhm Rds(on) at 90 A. It is not a pin-compatible drop-in — the package differs (tray vs tape/reel) and the gate charge is 240 nC. For a 30 V, 50 A socket, the RJK0391DPA-00#J5A is the correct fit; the NP179N055TUK--AY targets a different power tier and would require board and driver rework.