L7912CV-DG
STMicroelectronics
Needs validationhigh risk
L7912CV-DG may replace the function with redesign, not as a drop-in part.
Best Alternatives to CJ79L12
CJ79L12 is a -12 V, 100 mA negative regulator in SOT-89-3L. Alternatives found here require review, not drop-in use.
AI replacement insight
Electrical riskmedium
Check polarity, Vin, dropout, and caps.
Package riskhigh
Kept parts use larger packages.
Firmware risklow
No digital interface.
Sourcing riskmedium
Target lifecycle is not stated.
Can it be replaced directly?
Direct replacement for CJ79L12 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use CJ7912 or L7912CV-DG only if a package and layout change is acceptable.
Main risk
Package and pinout are not verified against SOT-89-3L.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | CJ79L12 | L7912CV-DG | CJ7912 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-89-3L | TO-220 | - | TO-252-2L — footprint differs | |
| Pinout | 3 pins | 3 pins | - | 3 pins — functions not checked | |
| Voltage | -12 V, Vin -35 V | -12 V, Vin unknown | - | -12 V, Vin -35 V — ratings align | |
| Current | 0.1 A | 1.5 A | - | 1.5 A — higher rating | |
| Temperature | 0 to 150 C | 0 to 150 C | - | 0 to 150 C — ES value | |
| Lifecycle | - | - | - | - — not stated |
Application & sourcing insights
Questions & answers
Verified drop-in options for CJ79L12 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.