Product Summary

Third generation Power MOSFET IRF840 from Vishay 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: 32 A; (5)Linear Derating Factor: 1.0 W/℃; (6)Single Pulse Avalanche Energy : 510 mJ; (7)Repetitive Avalanche Current a: 8.0 A; (8)Repetitive Avalanche Energy : 13 mJ; (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 ℃; (13)Mounting Torque at 6-32 or M3 screw:10 lbf · in; 1.1 N · m.

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 diagram

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

Other


Data Sheet

Negotiable 
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 
IRF840ASTRL
IRF840ASTRL

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

Negotiable 
IRF840ASTRLPBF
IRF840ASTRLPBF

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

0-1: $1.76
1-10: $1.40
10-25: $1.34
25-100: $1.28
IRF840LCLPBF
IRF840LCLPBF

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

0-1: $1.44
1-10: $1.18
10-100: $1.07
100-250: $0.96