
Jiangsu Changjiang Electronics Technology Co., Ltd (JCET)
A functional alternative with superior voltage, current, and RDS(on), but requires a board redesign due to a different package.
Finding a replacement for the Vishay SI1012CR-T1-GE3 N-Channel MOSFET involves balancing electrical upgrades with physical package differences. While no direct pin-compatible substitutes were found, several functional alternatives offer improved performance but require a PCB layout change.
Target SC-75A and candidate SOT-23 packages have different footprints, requiring a mandatory board redesign.
Most candidates are electrically superior. Some have no voltage margin (20V), which should be verified for the application.
Candidates are from various manufacturers, providing sourcing flexibility.
Direct replacement for SI1012CR-T1-GE3 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The best upgrade path is CJ3434, offering higher voltage (30V), higher current (5A), and much lower on-resistance. However, it is in a larger SOT-23 package and requires a board redesign.
The primary risk is the package mismatch. The target is in an SC-75A package, while all strong candidates are in the larger SOT-23 package, making them physically incompatible without a board redesign.

Jiangsu Changjiang Electronics Technology Co., Ltd (JCET)
A functional alternative with superior voltage, current, and RDS(on), but requires a board redesign due to a different package.
| Feature / factor | SI1012CR-T1-GE3 | CJ3434 | BSS806NEH6327 | NCE3416 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SC-75A | SOT-23 | SOT-23 | SOT-23 | SOT-23 — Requires board redesign.; BSS806NEH6327: Requires board redesign.; NCE3416: Requires board redesign. |
| Voltage | 20V | 30V | 20V | 20V | 30V / 20V — Provides increased safety margin.; BSS806NEH6327: No safety margin over target.; NCE3416: No safety margin over target. |
| Current | 0.63A | 5.0A | 2.3A | 6.5A | 5.0A / 2.3A / 6.5A — Significantly higher current handling.; BSS806NEH6327: Higher current handling.; NCE3416: Significantly higher current handling. |
| Rds(On) | 396mΩ @ 4.5V | 44mΩ @ 4.5V | 45mΩ @ 4.5V | 27mΩ @ 4.5V | 44mΩ @ 4.5V / 45mΩ @ 4.5V / 27mΩ @ 4.5V — Much lower on-resistance improves efficiency.; BSS806NEH6327: Much lower on-resistance.; NCE3416: Much lower on-resistance. |
| Vgs(Th) | 0.4V-1V | 0.6V-1V | - | - | 0.6V-1V — Compatible threshold voltage range. |
Verified drop-in options for SI1012CR-T1-GE3 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.