The TO-220AB Full-Pak (isolated tab) package eliminates the need for a mica insulator and thermal grease in chassis-mount designs — the back of the package is electrically isolated, so you can bolt it directly to a grounded heatsink without an isolation pad. The through-hole mounting suits point-to-point wiring and high-vibration environments where a soldered SMT part might crack the joint.
Gate drive and switching — 120 nC total gate charge
Total gate charge is 120 nC at 10 V gate drive. A gate driver sourcing 1 A peak can turn the FET on in about 120 ns — fast enough for a 50–100 kHz hard-switched converter. The 1900 pF input capacitance at 25 V drain-source gives the driver a capacitive load to charge each cycle; match the driver's peak current to the switching frequency to avoid excessive cross-conduction. Gate threshold voltage is 4 V maximum at 250 µA drain current. The recommended drive voltage for minimum Rds(on) is 10 V — a standard 12 V gate-drive rail is sufficient. The ±20 V maximum gate-source rating provides margin for ringing on long gate traces, but a 10 V zener clamp across G-S is still good practice in noisy environments.
Temperature range and application environment
This makes the part suitable for avionics power supplies, downhole instrumentation, satellite payloads, and outdoor industrial drives where ambient temperatures can exceed 85°C. The 175°C maximum junction allows a higher thermal headroom than a 150°C-rated part, which translates into a smaller heatsink for the same power dissipation.
Lifecycle and sourcing position
The TO-220 Full Pack package is a mature, widely stocked form factor, so lead times are generally stable for production quantities.