The IRF840STRR is a MOSFET transistor designed by Vishay Siliconix.

• Transistor Polarity: N-channel
• Supplier Device Package: D2PAK
• Drive Voltage (max Rds on, min Rds on): 10V
• Status: Obsolete
• Operating Temperature Range: -55°C to 150°C
• Manufacturer Package: TO-263-3, D2Pak (2 Leads + Tab), TO-263AB
• Power Dissipation: 3.1W, 125W
• Supply and Demand Status: Balanced
• Manufacturer Pack Quantity: 800
• MSL Level: 1 (Unlimited)
• Vds - Drain-Source Breakdown Voltage: 500V
• Id - Continuous Drain Current: 8A
• Rds On (Maximum) @ Id, Vgs: 850mOhm @ 4.8A, 10V
• Gate Source Voltage(th) (Maximum) @ Id: 4V @ 250μA
• Gate Charge (Qg) (Maximum) @ Vgs: 63nC @ 10V
• Gate Source Voltage (Maximum): ±20V
• Input Capacitance (Ciss) (Maximum) @ Vds: 1300pF @ 25V