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Texas Instruments CSD18502KCS
Texas Instruments

CSD18502KCS NexFET N-Channel MOSFET, 40 V, 100 A, TO-220-3

MPNCSD18502KCS
End of Life

Texas Instruments NexFET™ N-channel MOSFET, 40 V drain-source, 100 A continuous drain, 2.9 mOhm max Rds(on) at 10 V, TO-220-3 through-hole package, -55°C to 175°C junction temperature.

$2.64Ref. price · indicative, final on quote
CSD18502KCS datasheet
PackagingTO-220-3
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

CSD18502KCS Technical Specifications
ParameterValue
SeriesNexFET™
FET typeN-Channel
Mounting typeThrough Hole
Drain to source voltage40 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C100A (Tc)
Power dissipation259W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id2.1V @ 250µA
Rds on (Max) @ id, vgs2.9mOhm @ 100A, 10V
Gate charge (Qg) (Max) @ vgs62 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds4680 pF @ 20 V

Product details

40 V, 100 A NexFET for high-current switching

The CSD18502KCS: The TO-220-3 through-hole package bolts to a heatsink; the 259 W power dissipation ceiling assumes a good thermal interface.

Gate drive and switching budget

Gate charge is 62 nC at 10 V — a moderate figure for a TO-220 part this size. A gate driver sourcing 1 A can turn it on in about 62 ns, but the 4680 pF input capacitance at 20 V drain-source means the driver sees a capacitive load that rises with Vds. The ±20 V gate-source maximum gives headroom for driving with a 12 V supply; the 4.5 V threshold for minimum Rds(on) lets it work from a 5 V logic rail if you accept higher on-resistance.

Thermal endurance and environment

The 175°C ceiling is common for automotive-grade power devices; the 2.1 V max gate threshold at 250 µA ensures it stays off at elevated temperatures where threshold voltage drifts downward.

Frequently asked questions

What is the Rds(on) of the CSD18502KCS?

Maximum on-resistance is 2.9 mOhm at 100 A drain current with 10 V gate drive.

Can the CSD18502KCS handle 100 A continuously?

In practice, the actual current depends on heatsinking and ambient temperature.

What package does the CSD18502KCS come in?

It comes in a TO-220-3 through-hole package, with the supplier device package also listed as TO-220-3.