FQP4N90 FQP4N90 is a 900V N-Channel MOSFET with 4.2A continuous drain current and 3.3Ω on-resistance, housed in a TO-220-3 through-hole package.
Mfr Part #:

FQP4N90

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
FQP4N90 is a 900V N-Channel MOSFET with 4.2A continuous drain current and 3.3Ω on-resistance, housed in a TO-220-3 through-hole package.
✓ Total Stock: 3,000 pcs

FQP4N90 Available from 1 distributor

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3000 pcs On Request 1 On Request On Request 16+ On Request On Request

FQP4N90 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Drain to Source Voltage (Vdss)
Drive Voltage (Max Rds On, Min Rds On)
FET Type
Gate Charge (Qg) (Max) @ Vgs
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
Supplier Device Package
Technology
Vgs (Max)
Vgs(th) (Max) @ Id

FQP4N90 Description

Short technical summary and product information.

The FQP4N90 is an N-Channel enhancement mode power MOSFET manufactured using planar stripe DMOS technology. It features a drain-source breakdown voltage of 900V and a continuous drain current of 4.2A at 25°C, with a pulsed drain current rating of 16.8A. The device offers a maximum on-resistance of 3.3Ω at a gate-source voltage of 10V and a drain current of 2.1A.

 

This MOSFET is designed for high-efficiency switch mode power supplies, providing low gate charge (typically 24nC) and fast switching performance. It is 100% avalanche tested and offers improved dv/dt capability, with a single pulsed avalanche energy rating of 570mJ. The device operates over a junction temperature range of -55°C to 150°C and can dissipate up to 140W at a case temperature of 25°C.

 

The FQP4N90 is available in a TO-220-3 package with through-hole mounting, making it suitable for power applications requiring robust thermal performance. The junction-to-case thermal resistance is 0.89°C/W, and the maximum lead temperature for soldering is 300°C for 5 seconds.

FQP4N90 Quick Information

Product Type: MOSFET
Canonical Name: 900V N-Channel MOSFET
Subcategory: Single MOSFET

FQP4N90 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

FQP4N90 Features

  • 900V drain-source breakdown voltage.
  • 4.2A continuous drain current rating.
  • Low on-resistance of 3.3Ω maximum.
  • 100% avalanche tested for reliability.
  • Fast switching with low gate charge.

FQP4N90 Applications

  • Ideal for high-voltage switch mode supplies.
  • Used in power factor correction circuits.
  • Suitable for flyback converter topologies.
  • Applied in motor control and inverters.

FQP4N90 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the drain-source breakdown voltage of the FQP4N90?

The drain-source breakdown voltage is 900V (minimum, at ID=250µA).

What is the maximum continuous drain current?

The maximum continuous drain current is 4.2A at TC=25°C and 2.65A at TC=100°C.

What is the on-resistance of the FQP4N90?

The static drain-source on-resistance is 2.7Ω typical and 3.3Ω maximum at VGS=10V and ID=2.1A.

What is the operating temperature range?

The operating junction temperature range is -55°C to 150°C.

What package is the FQP4N90 available in?

The FQP4N90 is available in a TO-220-3 package with through-hole mounting.

What is the maximum power dissipation?

The maximum power dissipation is 140W at TC=25°C, derating at 1.12W/°C above 25°C.

What is the gate threshold voltage?

The gate threshold voltage ranges from 3.0V to 5.0V at VDS=VGS and ID=250µA.

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