
Wild Goose
Strong candidate with matching package, voltage, and diode type, plus a higher current rating. Review required.
Reviewing alternatives for the GS1010FL_R1_00001, a 1A, 1000V general-purpose rectifier in a SOD-123FL package. Key considerations for substitutes include matching the diode type, forward voltage, and package footprint.
Forward voltage (Vf) and recovery time (Trr) vary significantly among candidates, impacting efficiency and circuit behavior.
Most viable candidates use the same SOD-123FL package, but land pattern should always be double-checked.
Some alternatives have unknown lifecycle status or are from less common manufacturers, requiring supply chain verification.
No verified direct drop-in replacement has been identified. S2MW is a strong candidate but requires engineering review. Other alternatives are functionally different (fast recovery) and have a higher forward voltage.
S2MW by Wild Goose appears to be the most promising functional alternative, offering a higher current rating in the same package. However, verification of its general-purpose characteristics is essential.
The primary risk is mismatching the diode type (e.g., using a fast-recovery diode instead of general-purpose) and accepting a higher forward voltage, which increases power dissipation.

Wild Goose
Strong candidate with matching package, voltage, and diode type, plus a higher current rating. Review required.
| Feature / factor | GS1010FL_R1_00001 | S2MW | FFM107-M | RS2MW | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-123FL | SOD-123FL | SOD-123FL | SOD-123FL | SOD-123FL — Package matches target.; FFM107-M: Package matches target.; RS2MW: Package matches target.; US1MFA: Package matches target. |
| Voltage | 1000V | 1000V | 1000V | 1000V | 1000V — Reverse voltage matches.; FFM107-M: Reverse voltage matches.; RS2MW: Reverse voltage matches.; US1MFA: Reverse voltage matches. |
| Current | 1A | 2A | 1A | 2A | 2A / 1A — Higher current rating provides more margin.; FFM107-M: Forward current matches.; RS2MW: Higher current rating provides more margin.; US1MFA: Forward current matches. |
| Diode Type | General Purpose | General Purpose | Fast Recovery (500ns) | Fast Recovery (500ns) | General Purpose / Fast Recovery (500ns) / Super Fast (75ns) — Summary indicates matching diode type, but requires verification.; FFM107-M: Candidate is a Fast Recovery type, different from target.; RS2MW: Candidate is a Fast Recovery type, different from target.; US1MFA: Candidate is much faster than target's general purpose type. |
| Lifecycle | Active | Unknown | - | - | Unknown — Lifecycle status is not specified. |
| Forward Voltage | 1.1V | - | 1.3V | 1.3V | 1.3V / 1.7V — Higher Vf increases power loss.; RS2MW: Higher Vf increases power loss.; US1MFA: Higher Vf increases power loss. |
S2MW is a strong candidate, offering the same package and voltage with a higher 2A current rating. It is described as a general-purpose rectifier, but its parameters should be verified against your application's needs.