Obsolete — sourcing strategy for STD30PF03LT4
This means STMicroelectronics has ended production; no further factory orders or last-time-buy windows are open. Supply is limited to existing distributor inventory and the independent surplus channel. For a BOM line that still specifies this exact order code, procurement now depends on broker-sourced inventory.
At 12 A, expect roughly 4 W dissipation in the channel alone — well within the 70 W package limit at case temperature Tc, but the junction-to-case thermal path needs a good copper spread on the DPAK tab to keep junction temperature under 175°C. At 5 V gate drive the on-resistance will be higher than the 28 mOhm figure — check the typical output characteristic curve in the datasheet if your gate driver rail is 5 V.
P-channel in DPAK — thermal and layout notes
The 175°C junction temperature rating gives headroom for high ambient environments like automotive under-hood or industrial enclosures.