Product Summary

The IRF840 is a SMPS MOSFET. The applications of the IRF840 include Switch Mode Power Supply (SMPS), Uninterruptable Power Supply, High speed power switching, Lead-Free.

Parametrics

IRF840 absolute maximum ratings: (1)ID @ TC = 25℃ Continuous Drain Current, VGS @ 10V: 8.0 A; (2)ID @ TC = 100℃ Continuous Drain Current, VGS @ 10V: 5.1 A; (3)Pulsed Drain Current, IDM: 32 A; (4)PD @TC = 25℃ Power Dissipation: 125 W; (5)Linear Derating Factor: 1.0 W/℃; (6)Gate-to-Source Voltage, VGS: ±30 V; (7)Peak Diode Recovery dv/dt, dv/dt: 5.0 V/ns; (8)Operating Junction and Storage Temperature Range, TJ, TSTG: -55 to + 150℃; (9)Soldering Temperature, for 10 seconds: 300 (1.6mm from case)℃; (10)Mounting torqe, 6-32 or M3 screw: 10 lbf·in (1.1N·m).

Features

IRF840 features: (1)Low Gate Charge Qg results in Simple Drive Requirement; (2)Improved Gate, Avalanche and dynamic dv/dt Ruggedness; (3)Fully Characterized Capacitance and Avalanche Voltage and Current; (4)Effective Coss Specified (See AN1001).

Diagrams

IRF840 block diagram

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