Mfr Part #:

FDPF51N25

Available from 2 distributors

Mfr Name: On Semiconductor

N-Channel MOSFET, 250V drain-source voltage, 51A continuous drain current. TO-220F through-hole package.

✓ Total Stock: 27,000 pcs

$ Price Range: $1.55 - $3.42

FDPF51N25 Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
PROSOFT ELECTRONICS ✓ Non-Authorised Inventory information	23,000 pcs On Request	23000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	4,000 pcs On Request	4000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

FDPF51N25 Description

Short technical summary and product information.

The FDPF51N25 is an N-Channel MOSFET from On Semiconductor's UniFET family, designed for high-voltage switching applications. It features a drain-source voltage of 250V and a continuous drain current of 51A at TC=25°C. The on-resistance is typically 48mΩ at VGS=10V and ID=25.5A, with a maximum of 60mΩ. Gate charge is typically 55nC, enabling efficient switching. Input capacitance is 3410pF maximum. The device can handle pulsed drain currents up to 204A and offers a single-pulse avalanche energy rating of 1111mJ.

Thermal characteristics include a maximum power dissipation of 38W at TC=25°C, with junction-to-case thermal resistance of 3.3°C/W. The operating junction temperature range is -55°C to 150°C. The MOSFET is housed in a TO-220-3 Full Pack (TO-220F-3) through-hole package, providing insulation withstand voltage of 2500V RMS from leads to heat sink.

Typical applications include PDP TV power supplies, lighting ballasts, uninterruptible power supplies, and AC-DC power converters. Its low gate charge and low reverse transfer capacitance (63pF typical) make it suitable for switching power converter designs requiring high efficiency and reliability.

FDPF51N25 Quick Information

Product Type: MOSFET

Series: UniFET

Canonical Name: FDPF51N25 MOSFET N-Channel 250V 51A TO-220F

Subcategory: N-Channel MOSFET

FDPF51N25 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

FDPF51N25 Estimated Pricing

Qty	Low	High
1+	$3.42	$3.42
10+	$1.72	$1.72
100+	$1.55	$1.55

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

FDPF51N25 Features

N-Channel MOSFET with 250V drain-source voltage.
Continuous drain current rating of 51A.
Low on-resistance of 48mΩ typical.
Gate charge of 55nC typical for fast switching.
TO-220F full-pack through-hole package.

FDPF51N25 Applications

Used in PDP TV power supplies.
Suitable for lighting ballasts.
Ideal for uninterruptible power supplies.
Used in AC-DC power converter circuits.

FDPF51N25 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the drain-source voltage rating of the FDPF51N25?

250V.

What is the continuous drain current rating at 25°C?

51A.

What is the typical on-resistance?

48mΩ at VGS=10V, ID=25.5A.

What is the operating temperature range?

-55°C to 150°C (junction).

What package is the FDPF51N25 available in?

TO-220-3 Full Pack (TO-220F-3).

Is the FDPF51N25 RoHS compliant?

RoHS3 Compliant (unverified).

What is the maximum power dissipation at case temperature 25°C?

38W.

Category	Transistors - FETs, MOSFETs - Single
Manufacturer Name	On Semiconductor
Current	51 A
Drain to Source Voltage (Vdss)	250 V
Drive Voltage (Max Rds On, Min Rds On)	10 V
FET Type	N-Channel
Gate Charge (Qg) (Max) @ Vgs	70 nC @ 10 V
Input Capacitance (Ciss) (Max) @ Vds	3410 pF
Mounting Type	Through Hole
Operating Temperature	-55°C ~ 150°C
Power Dissipation (Max)	38 W
Rds On (Max) @ Id, Vgs	60mOhm @ 25.5A, 10V
Supplier Device Package	TO-220F-3
Tape & Reel	No
Technology	MOSFET (Metal Oxide)
Vgs (Max)	±30 V
Vgs(th) (Max) @ Id	5 V