Rds(on) and package power — the derating reality
At 3 A, the 121 mOhm Rds(on) produces conduction loss above the 500 mW package power dissipation rating. Continuous 3 A requires aggressive thermal management or pulsed operation.
CSD17484F4 N-Channel MOSFET, 30V 3A, FemtoFET™, 3-PICOSTAR
MPNCSD17484F4
End of Life
Texas Instruments FemtoFET™ series, CSD17484F4, N-Channel MOSFET, 30V Vdss, 3A Id, 121mOhm Rds(on) @ 500mA/8V, 1.2nC Qg, 3-PICOSTAR surface mount, -55°C to 150°C.
$0.48Ref. price · indicative, final on quote
Packaging3-XFDFN
RoHSROHS3 Compliant
SeriesFemtoFET™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | FemtoFET™ |
| FET type | N-Channel |
| Mounting | Surface Mount |
| Drain to source voltage | 30 V |
| Drive voltage (Max rds on, min rds on) | 1.8V, 8V |
| Current - continuous drain (Id) @ 25°C | 3A (Ta) |
| Power dissipation | 500mW (Ta) |
| Operating temperature | -55°C ~ 150°C (TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Vgs | 12V |
| Technology | MOSFET (Metal Oxide) |
| Case | 3-XFDFN |
| Vgs(th) (Max) @ id | 1.1V @ 250µA |
| Rds on (Max) @ id, vgs | 121mOhm @ 500mA, 8V |
| Gate charge (Qg) (Max) @ vgs | 1.2 nC @ 4.5 V |
| Input capacitance (Ciss) (Max) @ vds | 195 pF @ 15 V |
Product details
Frequently asked questions
What is the closest pin-compatible alternative to CSD17484F4?
No official pin-compatible cross or second source is listed in the TI FemtoFET™ family. The 3-PICOSTAR footprint is specific to this series; any alternative would require a board layout change.