IXTP44N10T vs FQP55N10

Part Number	IXTP44N10T	FQP55N10
Category	Transistors - FETs, MOSFETs - Single	Transistors - FETs, MOSFETs - Single
Manufacturer	IXYS	ON Semiconductor
Description	MOSFET N-CH 100V 44A TO220AB	MOSFET N-CH 100V 55A TO220-3
Package	Bulk	Tube
Series	TrenchMV™	QFET®
Operating Temperature	-55°C ~ 175°C (TJ)	-55°C ~ 175°C (TJ)
Mounting Type	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3
Supplier Device Package	TO-220-3	TO-220-3
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Power Dissipation (Max)	130W (Tc)	155W (Tc)
FET Type	N-Channel	N-Channel
FET Feature	-	-
Drain to Source Voltage (Vdss)	100 V	100 V
Current - Continuous Drain (Id) @ 25°C	44A (Tc)	55A (Tc)
Rds On (Max) @ Id, Vgs	30mOhm @ 22A, 10V	26mOhm @ 27.5A, 10V
Vgs(th) (Max) @ Id	4.5V @ 25µA	4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	33 nC @ 10 V	98 nC @ 10 V
Input Capacitance (Ciss) (Max) @ Vds	1262 pF @ 25 V	2730 pF @ 25 V
Vgs (Max)	±30V	±25V
Drive Voltage (Max Rds On, Min Rds On)	10V	10V

1. 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.
2. 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.
3. What are the 4 types of MOSFETs?

N-channel enhancement type.
N-channel depletion type.
P-channel enhancement type.
P-channel depletion type.
4. Is MOSFET 3-terminal or 4-terminal?

Basically, MOSFET is a three-terminal device (source S, drain D, and gate G). But in some cases, such as some high-voltage and high-power MOSFETs, there may be additional terminals (for example, substrate terminal B) to improve performance or reliability, so it is sometimes called a four-terminal device.