GN1117-3.3V
GN Semiconductor
Needs validationhigh risk
Offered in the same SOT89-3L package but with a lower 15V max input voltage.
Best Alternatives to SSP7903P33PR
SSP7903P33PR is a 40V, 1A LDO in a SOT89-3L package. Finding a direct replacement is challenging, as most alternatives fail to match its high input voltage rating, requiring careful electrical and mechanical review.
AI replacement insight
Electrical riskhigh
Most alternatives have a much lower max input voltage (12-15V vs 40V).
Package riskmedium
Some candidates share the SOT-89 package, but pinout must be verified. Others require a PCB redesign.
Can it be replaced directly?
Direct replacement for SSP7903P33PR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
If Vin < 12V, consider KMA1117-3.3V (same package). Otherwise, a redesign for SSP7903P33FR (SOT223) is needed to maintain the 40V rating.
Main risk
Maximum input voltage mismatch is the primary risk; most alternatives are rated for 15V or less.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | SSP7903P33PR | GN1117-3.3V | KMA1117-3.3V | SSP7903P33FR | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V — Output voltage matches.; KMA1117-3.3V: Output voltage matches.; SSP7903P33FR: Output voltage matches.; SCJT1117B-3.3-A: Output voltage matches. |
| Package | SOT89-3L | SOT89-3L | SOT-89 | SOT223 | SOT89-3L / SOT-89 / SOT223 / SOT-223 — This MPN is offered in the target package. Pinout must be verified.; KMA1117-3.3V: Package appears to match, but pinout must be verified.; SSP7903P33FR: Different footprint, requires PCB redesign.; SCJT1117B-3.3-A: Different footprint, requires PCB redesign. |
| Current | 1.0A | 1.0A | 1.0A | 1.0A | 1.0A — Output current matches.; KMA1117-3.3V: Output current matches.; SSP7903P33FR: Output current matches.; SCJT1117B-3.3-A: Output current matches. |
Application & sourcing insights
Questions & answers
Verified drop-in options for SSP7903P33PR 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.