FDMS039N08B N-Channel MOSFET rated for 80V drain-source voltage and 100A continuous current (Tc=25°C). Features low on-resistance of 3.9mΩ max at 10V gate drive, suitable for synchronous rectification and power management.
Mfr Part #:

FDMS039N08B

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
N-Channel MOSFET rated for 80V drain-source voltage and 100A continuous current (Tc=25°C). Features low on-resistance of 3.9mΩ max at 10V gate drive, suitable for synchronous rectification and power management.
✓ Total Stock: 9,948 pcs
$ Price Range: $1.19 - $3.56

FDMS039N08B Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
8,948 pcs
8948 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request

FDMS039N08B 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
Halogen Free
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
SVHC Present
Supplier Device Package
Tape & Reel
Technology
Vgs (Max)
Vgs(th) (Max) @ Id

FDMS039N08B Description

Short technical summary and product information.

The FDMS039N08B is a surface-mount N-Channel MOSFET manufactured by onsemi using the advanced POWERTRENCH process. It is designed for applications requiring high efficiency and fast switching, such as synchronous rectification in ATX, server, and telecom power supplies, battery protection circuits, and motor drives.

 

Key electrical specifications include a drain-source voltage (Vdss) of 80V, continuous drain current of 100A at 25°C case temperature (19.4A at ambient), and a pulsed drain current capability of 400A. The device features a low typical on-resistance of 3.2mΩ and maximum of 3.9mΩ at Vgs=10V and Id=50A. Gate charge is 100nC at 10V, and input capacitance is 7600pF at Vds=40V. The MOSFET is rated for a maximum power dissipation of 104W at case temperature 25°C.

 

Packaged in an 8-PowerTDFN (8-PQFN 5x6) with a junction-to-case thermal resistance of 1.2°C/W, it is suitable for compact, high-current designs. The device is 100% UIL tested, has a soft reverse recovery body diode, and is RoHS3 compliant, Pb-free, and halide free. Operating junction temperature range is -55°C to 150°C.

FDMS039N08B Quick Information

Product Type: N-Channel MOSFET
Series: PowerTrench
Canonical Name: 80V N-Channel PowerTrench MOSFET
Subcategory: Single N-Channel

FDMS039N08B Compliance

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

FDMS039N08B Estimated Pricing

Qty Low High
1+ $3.56 $3.56
10+ $2.32 $2.32
100+ $1.62 $1.62
500+ $1.36 $1.36
1,000+ $1.26 $1.26
3,000+ $1.19 $1.19

Estimated market price range - modelled values for guidance only, not live distributor offers.

FDMS039N08B Features

  • Max on-resistance 3.9mΩ at 10V gate drive.
  • Continuous drain current 100A at 25°C case.
  • Low gate charge of 100nC for fast switching.
  • Avalanche energy rated at 240mJ.
  • RoHS compliant, Pb-free, halide free.

FDMS039N08B Applications

  • Synchronous rectification for ATX/server power supplies.
  • Battery protection circuits requiring high current.
  • Motor drives and uninterruptible power supplies.
  • High efficiency power conversion applications.
  • Telecom PSU designs.

FDMS039N08B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum drain-source voltage of FDMS039N08B?

80V.

What is the package type of this MOSFET?

8-PowerTDFN (8-PQFN 5x6).

What is the operating temperature range?

-55°C to 150°C (junction).

Is the FDMS039N08B RoHS compliant?

Yes, RoHS3 compliant, Pb-free and halide free.

What is the continuous drain current rating?

100A at case temperature 25°C; 19.4A at ambient 25°C.

What is the typical on-resistance?

3.2mΩ typical, 3.9mΩ max at Vgs=10V, Id=50A.

What is the total gate charge?

100nC at Vgs=10V.

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