✅ Diode type: Schottky, which matches the reverse polarity protection requirement.
✅ Average rectified current: 3A, which exceeds the required ≥1A and is suitable for a 500 mA load with margin.
✅ Repetitive reverse voltage: 40V, which exceeds the required ≥30V for a 12V DC input.
✅ Forward voltage: 450 mV max @ 3A, which satisfies the required ≤0.5V and supports low loss operation.
✅ Package: SMA (DO-214AC, SMA), which matches the required SMA package.
✅ Mounting type: Surface Mount, which matches the requirement.
✅ Operating temperature range: -55°C to 125°C, which is wider than the required -40°C to +125°C.
✅ RoHS compliance: Yes, listed as ROHS3 Compliant.
All required specifications are satisfied. This component is approved for the stated reverse polarity protection application.