onsemi UniFET Type N-Channel MOSFET, 51 A, 250 V Enhancement, 3-Pin TO-220 FDP51N25

RS stock no.:: 671-4843
Mfr. Part No.:: FDP51N25
Manufacturer:: onsemi

onsemi UniFET Type N-Channel MOSFET, 51 A, 250 V Enhancement, 3-Pin TO-220 FDP51N25

Image representative of range

Bulk discount available

Subtotal (1 pack of 5 units)*

R 270,33

(exc. VAT)

R 310,88

(inc. VAT)

FREE delivery for orders over R 1,500.00

In Stock

Plus 35 unit(s) shipping from 29 December 2025
Plus 845 unit(s) shipping from 05 January 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit	Per Pack*
5 - 20	R 54.066	R 270.33
25 - 95	R 52.714	R 263.57
100 - 245	R 51.132	R 255.66
250 - 495	R 49.086	R 245.43
500 +	R 47.122	R 235.61

*price indicative

RS stock no.:: 671-4843
Mfr. Part No.:: FDP51N25
Manufacturer:: onsemi

Specification

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	onsemi
	Product Type	MOSFET
	Channel Type	Type N
	Maximum Continuous Drain Current Id	51A
	Maximum Drain Source Voltage Vds	250V
	Series	UniFET
	Package Type	TO-220
	Mount Type	Through Hole
	Pin Count	3
	Maximum Drain Source Resistance Rds	60mΩ
	Channel Mode	Enhancement
	Maximum Gate Source Voltage Vgs	30 V
	Forward Voltage Vf	1.4V
	Minimum Operating Temperature	-55°C
	Typical Gate Charge Qg @ Vgs	55nC
	Maximum Power Dissipation Pd	320W
	Maximum Operating Temperature	150°C
	Standards/Approvals	No
	Width	4.83 mm
	Height	9.4mm
	Length	10.67mm
	Automotive Standard	No

	Select all
	Brand onsemi
	Product Type MOSFET
	Channel Type Type N
	Maximum Continuous Drain Current Id 51A
	Maximum Drain Source Voltage Vds 250V
	Series UniFET
	Package Type TO-220
	Mount Type Through Hole
	Pin Count 3
	Maximum Drain Source Resistance Rds 60mΩ
	Channel Mode Enhancement
	Maximum Gate Source Voltage Vgs 30 V
	Forward Voltage Vf 1.4V
	Minimum Operating Temperature -55°C
	Typical Gate Charge Qg @ Vgs 55nC
	Maximum Power Dissipation Pd 320W
	Maximum Operating Temperature 150°C
	Standards/Approvals No
	Width 4.83 mm
	Height 9.4mm
	Length 10.67mm
	Automotive Standard No

UniFET™ N-Channel MOSFET, Fairchild Semiconductor

UniFET™ MOSFET is Fairchild Semiconductor's high voltage MOSFET family. It has the smallest on-state resistance among the Planar MOSFETs, and also provides superior switching performance and higher avalanche energy strength. In addition, the internal gate-source ESD diode allows UniFET-II™ MOSFET to withstand over 2000V HBM surge stress.

UniFET™ MOSFETs are suitable for switching power converter applications, such as power factor correction (PFC), flat panel display (FPD) TV power, ATX (Advanced Technology eXtended) and electronic lamp ballasts.

MOSFET Transistors, ON Semi

ON Semi offers a substantial portfolio of MOSFET devices that includes high-voltage (>250V) and low-voltage (<250V) types. The Advanced silicon technology provides smaller die sizes, which it is incorporated into multiple industry-standard and thermally-enhanced packages.

ON Semi MOSFETs provide superior design reliability from reduced voltage spikes and overshoot, to lower junction capacitance and reverse recovery charge, to elimination of additional external components to keep systems up and running longer.

onsemi UniFET Type N-Channel MOSFET, 51 A, 250 V Enhancement, 3-Pin TO-220 FDP51N25

FREE delivery for orders over R 1,500.00

UniFET™ N-Channel MOSFET, Fairchild Semiconductor

MOSFET Transistors, ON Semi

Related links