IRF840B
- Mfr.Part #
- IRF840B
- Manufacturer
- onsemi
- Package / Case
- TO-220-3
- Datasheet
- Download
- Description
- MOSFET N-CH 500V 8A TO220-3
- Stock
- 33,591
- In Stock :
- 33,591
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- Manufacturer :
- onsemi
- Product Category :
- Transistors - FETs, MOSFETs - Single
- Input Capacitance :
- 1.8nF
- Lead Free :
- Lead Free
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Drain to Source Resistance :
- 650mOhm
- Vgs(th) (Max) @ Id :
- 4V @ 250µA
- Rds On (Max) @ Id, Vgs :
- 800mOhm @ 4A, 10V
- Number of Elements :
- 1
- Supplier Device Package :
- TO-220-3
- Mounting Type :
- Through Hole
- Drain to Source Voltage (Vdss) :
- 500V
- Rise Time :
- 65ns
- REACH SVHC :
- No SVHC
- Termination :
- Through Hole
- Fall Time (Typ) :
- 75 ns
- Rds On Max :
- 800 mΩ
- RoHS Status :
- RoHS Compliant
- Continuous Drain Current (ID) :
- 8A
- Gate Charge (Qg) (Max) @ Vgs :
- 53nC @ 10V
- Dual Supply Voltage :
- 500V
- Element Configuration :
- Single
- Mount :
- Through Hole
- Max Operating Temperature :
- 150°C
- Resistance :
- 800mOhm
- Published :
- 2005
- Operating Temperature :
- -55°C~150°C TJ
- Input Capacitance (Ciss) (Max) @ Vds :
- 1800pF @ 25V
- Min Operating Temperature :
- -55°C
- Nominal Vgs :
- 4 V
- Power Dissipation-Max :
- 134W Tc
- Drain to Source Breakdown Voltage :
- 500V
- Packaging :
- Tube
- Package / Case :
- TO-220-3
- Turn-Off Delay Time :
- 125 ns
- Current - Continuous Drain (Id) @ 25°C :
- 8A Tc
- Drive Voltage (Max Rds On,Min Rds On) :
- 10V
- Power Dissipation :
- 134W
- Width :
- 10.67mm
- Gate to Source Voltage (Vgs) :
- 30V
- Vgs (Max) :
- ±30V
- FET Type :
- N-Channel
- Number of Pins :
- 3
- Datasheets
- IRF840B

N-Channel Tube 800mOhm @ 4A, 10V ±30V 1800pF @ 25V 53nC @ 10V 500V TO-220-3
IRF840B Description
These N-channel enhanced power field effect transistors are produced using Fairchild's proprietary planar DMOS technology. This advanced technology is specifically tailored to minimize on-resistance, provide excellent switching performance, and withstand high-energy pulses in avalanche and rectifier modes. These devices are ideal for half-bridge-based efficient switching mode power supplies, power factor correction and electronic lamp ballasts.
IRF840B Features
8.0A, 500V, RDS(on) = 0.8? @VGS = 10 V
Low gate charge ( typical 41 nC)
Low Crss ( typical 35 pF)
Fast switching
100% avalanche tested
Improved dv/dt capability
IRF840B Applications
half-bridge-based efficient switching mode power supplies
power factor correction
electronic lamp ballasts
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