onsemi UniFET N-Channel MOSFET, 18 A, 500 V, 3-Pin TO-220F FDPF18N50

View all MOSFETs
Bulk discount available

Subtotal (1 unit)*

£2.37

(exc. VAT)

£2.84

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 40 unit(s) ready to ship
  • Plus 6 unit(s) ready to ship from another location
  • Plus 911 unit(s) shipping from 20 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 - 9£2.37
10 +£2.04

*price indicative

Packaging Options:
RS Stock No.:
671-4884
Mfr. Part No.:
FDPF18N50
Brand:
onsemi
Find similar products by selecting one or more attributes.
Select all

Brand

onsemi

Channel Type

N

Maximum Continuous Drain Current

18 A

Maximum Drain Source Voltage

500 V

Package Type

TO-220F

Series

UniFET

Mounting Type

Through Hole

Pin Count

3

Maximum Drain Source Resistance

265 mΩ

Channel Mode

Enhancement

Minimum Gate Threshold Voltage

3V

Maximum Power Dissipation

38.5 W

Transistor Configuration

Single

Maximum Gate Source Voltage

-30 V, +30 V

Typical Gate Charge @ Vgs

45 nC @ 10 V

Maximum Operating Temperature

+150 °C

Length

10.16mm

Number of Elements per Chip

1

Transistor Material

Si

Width

4.7mm

Height

9.19mm

Minimum Operating Temperature

-55 °C

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.

Related links