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Texas Instruments CSD17559Q5
Texas Instruments

CSD17559Q5 NexFET N-Channel MOSFET, 30V 100A 1.15mOhm

MPNCSD17559Q5
End of Life

Texas Instruments NexFET™ N-Channel MOSFET, 30V Vds, 40A (Ta) / 100A (Tc) continuous drain, 1.15mOhm max Rds(on) at 10V, 8-PowerTDFN / 8-VSON-CLIP (5x6) package, -55°C to 150°C junction temperature.

$2.95Ref. price · indicative, final on quote
CSD17559Q5 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

CSD17559Q5 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°C40A (Ta), 100A (Tc)
Power dissipation3.2W (Ta), 96W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
Case8-PowerTDFN
Vgs(th) (Max) @ id1.7V @ 250µA
Rds on (Max) @ id, vgs1.15mOhm @ 40A, 10V
Gate charge (Qg) (Max) @ vgs51 nC @ 4.5 V
Input capacitance (Ciss) (Max) @ vds9200 pF @ 15 V

Product details

What the CSD17559Q5 is and where it fits

N-channel NexFET power MOSFET rated for 30 V drain-to-source and 100 A continuous drain current at the case temperature. On-resistance is 1.15 mOhm max at 10 V gate drive.

Key ratings and what they mean for the BOM

Rds(on) is 1.15 mOhm at 10 V. Power dissipation is 3.2 W (Ta) and 96 W (Tc). Gate charge is 51 nC at 4.5 V; input capacitance is 9200 pF at 15 V.

Lifecycle and sourcing posture

Lifecycle status is Active. ROHS3 compliant. No last-time-buy notice.

Frequently asked questions

What is the closest pin-compatible alternative to CSD17559Q5?

TI's NexFET family includes several 30 V N-channel FETs in the 5x6 VSON-CLIP package, but the CSD17559Q5 is distinguished by its 1.15 mOhm Rds(on) at 10 V. A direct cross-reference would need to match the 8-VSON-CLIP footprint and the 30 V / 100 A rating — no single official second-source alternate is listed in the available records.

What are the thermal characteristics and mounting considerations for CSD17559Q5?

The junction temperature range is -55°C to 150°C. Power dissipation is rated at 3.2 W in still air at 25°C ambient and 96 W at the case. The 8-VSON-CLIP package relies on the PCB copper pour for heat spreading — a thermal via array under the exposed pad is expected for designs approaching the 100 A continuous rating.