FDS6375 vs STD25NF20

Part Number	FDS6375	STD25NF20
Category	Transistors - FETs, MOSFETs - Single	Transistors - FETs, MOSFETs - Single
Manufacturer	National Semiconductor	STMicroelectronics
Description	SMALL SIGNAL FIELD-EFFECT TRANSI	MOSFET N-CH 200V 18A DPAK
Package	Bulk	Tube
Series	PowerTrench®	Automotive, AEC-Q101, STripFET™
Operating Temperature	-55°C ~ 175°C (TJ)	-55°C ~ 175°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Package / Case	8-SOIC (0.154\", 3.90mm Width)	TO-252-3, DPak (2 Leads + Tab), SC-63
Supplier Device Package	8-SOIC	DPAK
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Power Dissipation (Max)	2.5W (Ta)	110W (Tc)
FET Type	P-Channel	N-Channel
FET Feature	-	-
Drain to Source Voltage (Vdss)	20 V	200 V
Current - Continuous Drain (Id) @ 25°C	8A (Ta)	18A (Tc)
Rds On (Max) @ Id, Vgs	24mOhm @ 8A, 4.5V	125mOhm @ 10A, 10V
Vgs(th) (Max) @ Id	1.5V @ 250µA	4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	36 nC @ 4.5 V	39 nC @ 10 V
Input Capacitance (Ciss) (Max) @ Vds	2.694 pF @ 10 V	940 pF @ 25 V
Vgs (Max)	±8V	±20V
Drive Voltage (Max Rds On, Min Rds On)	2.5V, 4.5V	10V

1. What is a MOSFET?

A MOSFET is a voltage-controlled field-effect transistor. It controls the flow of current between the source (Source, S) and drain (Drain, D) by applying a voltage to the gate (Gate, G).
2. How does a MOSFET work as an amplifier?

A MOSFET can change the resistance between the source and drain by adjusting the gate voltage, which in turn affects the current flowing through this path. This allows the input signal to be amplified.
3. What role does a MOSFET play in a motor?

MOSFETs are often used for functions such as speed control, direction control, and soft start/stop of motors. They can respond quickly to control signals and provide precise current control.
4. Why use MOSFETs instead of transistors?

MOSFETs are superior to traditional BJT transistors in many applications due to their high input impedance, low power consumption, high speed, and easy integration.