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Texas Instruments CSD17578Q5AT

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
Packaging8-PowerTDFN
RoHSROHS3 Compliant
SeriesNexFET™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CSD17578Q5AT specifications
ParameterValue
SeriesNexFET™
FET typeN-Channel
MountingSurface 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

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.

Surface-mount in an 8-PowerTDFN (5x6 mm) footprint.

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.