Product Summary

The IRF840 is a power MOSFET. The IRF840 provides the designer with the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness. The TO-220 package of the IRF840 is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 W. The low thermal resistance and low package cost of the TO-220 contribute to its wide acceptance throughout the industry.

Parametrics

IRF840 absolute maximum ratings: (1)Drain-Source Voltage: 500 V; (2)Gate-Source Voltage: ± 20 V; (3)Continuous Drain Current VGS at 10 V: 8.0 A at TC = 25 ℃, 5.1 A at TC = 100 ℃; (4)Pulsed Drain Current: 32A; (5)Linear Derating Factor: 1.0W/℃; (6)Single Pulse Avalanche Energy : 510mJ; (7)Repetitive Avalanche Current a: 8.0A; (8)Repetitive Avalanche Energy : 13mJ; (9)Maximum Power Dissipation at TC = 25 ℃: 125 W; (10)Peak Diode Recovery dV/dt: 3.5 V/ns; (11)Operating Junction and Storage Temperature Range: -55℃ to + 150℃; (12)Soldering Recommendations (Peak Temperature) for 10 s: 300℃.

Features

IRF840 features: (1) Dynamic dV/dt Rating; (2) Repetitive Avalanche Rated; (3) Fast Switching; (4) Ease of Paralleling; (5) Simple Drive Requirements; (6) Lead (Pb)-free Available.

Diagrams

IRF840 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
IRF840, SiHF840
IRF840, SiHF840

Other


Data Sheet

Negotiable 
IRF840_R4943
IRF840_R4943

Fairchild Semiconductor

MOSFET N-CH POWER

Data Sheet

Negotiable 
IRF840A
IRF840A

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

0-725: $1.91
725-1000: $1.84
1000-2000: $1.79
IRF840A, SiHF840A
IRF840A, SiHF840A

Other


Data Sheet

Negotiable 
IRF840AL
IRF840AL

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

Negotiable 
IRF840APBF
IRF840APBF

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

0-1: $0.93
1-10: $0.74
10-100: $0.65
100-250: $0.57
IRF840AS
IRF840AS

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

Negotiable 
IRF840ASPBF
IRF840ASPBF

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

0-1: $1.12
1-10: $0.97
10-100: $0.86
100-250: $0.84