Product Summary

The IRF840 is a power MOSFET. The 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: 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 pin connection

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

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

0-1: $2.94
1-10: $2.40
10-100: $2.18
100-250: $1.95
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 
IRF840A_R4944
IRF840A_R4944

Fairchild Semiconductor

MOSFET TO-220AB

Data Sheet

Negotiable 
IRF840AL
IRF840AL

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

Negotiable 
IRF840ALPBF
IRF840ALPBF

Vishay/Siliconix

MOSFET N-Chan 500V 8.0 Amp

Data Sheet

0-1: $1.34
1-10: $1.18
10-100: $1.06
100-250: $0.99