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Texas Instruments CSD17578Q5AT
Texas Instruments

CSD17578Q5AT NexFET N-Ch MOSFET, 30V 25A, 6.9mOhm

MPNCSD17578Q5AT
End of Life

Texas Instruments NexFET™ N-Channel MOSFET, 30V Vdss, 25A Id, 6.9mOhm Rds(on) @ 10V, 8-PowerTDFN / 8-VSONP (5x6) package, -55°C to 150°C junction temp.

$1.36Ref. price · indicative, final on quote
CSD17578Q5AT datasheet
Packaging8-PowerTDFN
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

CSD17578Q5AT Technical Specifications
ParameterValue
SeriesNexFET™
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°C25A (Ta)
Power dissipation3.1W (Ta), 42W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
Case8-PowerTDFN
Vgs(th) (Max) @ id1.9V @ 250µA
Rds on (Max) @ id, vgs6.9mOhm @ 10A, 10V
Gate charge (Qg) (Max) @ vgs22.3 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1510 pF @ 15 V

Product details

NexFET N-channel — 30 V, 25 A, 6.9 mOhm

The Texas Instruments CSD17578Q5AT is a NexFET series N-channel power MOSFET rated for 30 V drain-source and 25 A continuous drain current at 25°C ambient. On-resistance sits at 6.9 mOhm typical with a 10 V gate drive, and the gate charge is 22.3 nC at 10 V. The 8-PowerTDFN package includes an exposed pad for thermal transfer to the PCB; the junction temperature range spans -55°C to 150°C.

Package and mounting

Surface-mount in an 8-PowerTDFN (5x6 mm) footprint. The exposed pad on the bottom is the drain connection and the primary heat path — route it to a copper plane with enough vias to pull heat into the inner layers. Tape & Reel or Cut Tape options are available for the shipping medium.

Lifecycle and compliance

ROHS3 compliant — no lead, no restricted substances beyond the exemption list. The NexFET series is an established TI power MOSFET family with consistent supply.

Frequently asked questions

What is the closest pin-compatible alternative to CSD17578Q5AT?

Within the NexFET family, TI offers several 30 V N-channel FETs in the same 8-VSONP package, but the exact Rds(on) and gate charge differ. For a direct drop-in, check the CSD17577Q5A or CSD17573Q5A — same footprint, similar ratings, but verify the Rds(on) and gate charge against your load current and switching frequency. No single 'replacement' is guaranteed without reviewing the full datasheet curves.

Is CSD17578Q5AT RoHS compliant?

Yes, it is ROHS3 compliant, meaning no restricted substances above the exemption thresholds. Suitable for RoHS-driven BOMs without lead-exemption paperwork.

What is the maximum junction temperature for CSD17578Q5AT?

The operating junction temperature range is -55°C to 150°C. This covers military, automotive under-hood, and industrial environments where ambient temperatures can exceed 85°C.