55 V, 55 A, 19 mOhm — the power switch for 12 V and 24 V automotive rails
The BUK7219-55A,118: The 19 mOhm maximum on-resistance at 25 A gate drive of 10 V keeps conduction losses low in high-current switching circuits — think motor drives, solenoid actuators, and DC-DC converters in automotive body and chassis domains. The DPAK (TO-252) surface-mount package fits standard reflow assembly lines and dissipates up to 114 W through the tab.
AEC-Q101 and the TrenchMOS process
AEC-Q101 qualification means this part has passed the stress tests required for automotive-grade discrete semiconductors: high-temperature reverse bias, temperature cycling, and humidity. The TrenchMOS technology delivers low gate charge and fast switching, which translates to cleaner waveforms and lower switching losses in hard-switched topologies.