Automotive Schottky in a Flat SOD-128
The STPS2H100AFY is an automotive-grade Schottky rectifier from STMicroelectronics, rated 100 V reverse and 2 A average forward current. It carries AEC-Q101 qualification, meaning it has passed the full automotive reliability stress suite — temperature cycling, high-temperature reverse bias, and ESD sensitivity — for deployment in under-hood or chassis-domain electronics. The junction temperature range extends to 175°C, which gives headroom in engine-bay or transmission-control modules where ambient temperatures push 125°C. The 790 mV forward drop at 2 A is typical for a 100 V Schottky at this current density — the trade-off is a slightly higher Vf than a 40 V part, but the 100 V blocking voltage handles load-dump transients on a 12 V or 24 V automotive bus without an external clamp.
Package and Rework Considerations
The SOD-128 flat package (SOD128Flat) is a low-profile surface-mount package with a large exposed cathode pad on the bottom. The pad layout follows the standard SOD-128 footprint; the flat leads are coplanar with the package body, which reduces tombstoning risk during reflow. For rework, the exposed pad conducts heat into the board quickly — preheat the PCB to 100–120°C before hot-air removal, and use a wide nozzle (10 mm or larger) to heat the pad evenly. The cathode mark is a chamfered corner on the package body; pin 1 is the anode on the opposite side. The part ships in Tape & Reel (TR) or Cut Tape (CT) formats, compatible with standard pick-and-place. The flat leads mean the solder fillet is visible only from the side — inspect the joint angle under magnification to confirm wetting on the lead face.
Sourcing and Lifecycle
Sourced to order against BOM quantities through independent distribution. Availability and current pricing confirmed at RFQ time — no stock-holding claim, no lead-time number. For a design-in, the active status means no near-term obsolescence risk on this order code.