IRF840B

IRF840B Datasheet

IRF840B/IRFS840B

Part	Datasheet
IRF840B	IRF840B (pdf)

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IRF840B/IRFS840B February 2005 IRF840B/IRFS840B 500V N-Channel MOSFET These N-Channel enhancement mode power field effect transistors are produced using Fairchild’s proprietary, planar, DMOS technology. This advanced technology has been especially tailored to minimize on-state resistance, provide superior switching performance, and withstand high energy pulse in the avalanche and commutation mode. These devices are well suited for high efficiency switch mode power supplies, power factor correction and electronic lamp ballasts based on half bridge. • 8.0A, 500V, RDS on = = 10 V • Low gate charge typical 41 nC • Low Crss typical 35 pF • Fast switching • 100% avalanche tested • Improved dv/dt capability TO-220 IRF Series TO-220F IRFS Series Absolute Maximum Ratings TC = 25°C unless otherwise noted Parameter VDSS Drain-Source Voltage Drain Current - Continuous TC = 25°C - Continuous TC = 100°C Drain Current - Pulsed Note 1 VGSS Gate-Source Voltage Single Pulsed Avalanche Energy Note 2 Avalanche Current Note 1 Repetitive Avalanche Energy Note 1 dv/dt Peak Diode Recovery dv/dt Note 3 Power Dissipation TC = 25°C - Derate above 25°C TJ, TSTG Operating and Storage Temperature Range Maximum lead temperature for soldering purposes, 1/8" from case for 5 seconds * Drain current limited by maximum junction temperature. IRF840B IRFS840B ± 30 -55 to +150 Thermal Characteristics Parameter Thermal Resistance, Junction-to-Case Max. Thermal Resistance, Case-to-Sink Typ. Thermal Resistance, Junction-to-Ambient Max.

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IRF840B/IRFS840B

February 2005

IRF840B/IRFS840B
500V N-Channel MOSFET

These N-Channel enhancement mode power field effect transistors are produced using Fairchild’s proprietary, planar, DMOS technology. This advanced technology has been especially tailored to minimize on-state resistance, provide superior switching performance, and withstand high energy pulse in the avalanche and commutation mode. These devices are well suited for high efficiency switch mode power supplies, power factor correction and electronic lamp ballasts based on half bridge.
• 8.0A, 500V, RDS on = = 10 V
• Low gate charge typical 41 nC
• Low Crss typical 35 pF
• Fast switching
• 100% avalanche tested
• Improved dv/dt capability

TO-220

IRF Series

TO-220F

IRFS Series

Absolute Maximum Ratings TC = 25°C unless otherwise noted

Parameter

VDSS

Drain-Source Voltage

Drain Current - Continuous TC = 25°C
- Continuous TC = 100°C

Drain Current - Pulsed

Note 1

VGSS

Gate-Source Voltage

Single Pulsed Avalanche Energy

Note 2

Avalanche Current

Note 1

Repetitive Avalanche Energy

Note 1
dv/dt

Peak Diode Recovery dv/dt

Note 3

Power Dissipation TC = 25°C
- Derate above 25°C

TJ, TSTG

Operating and Storage Temperature Range

Maximum lead temperature for soldering purposes, 1/8" from case for 5 seconds
* Drain current limited by maximum junction temperature.

IRF840B

IRFS840B
± 30
-55 to +150

Thermal Characteristics

Parameter Thermal Resistance, Junction-to-Case Max. Thermal Resistance, Case-to-Sink Typ. Thermal Resistance, Junction-to-Ambient Max.

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Datasheet ID: IRF840B 634035