MC7815CDTRKG
onsemi
Needs validationmedium risk
A pin-compatible 15V/1A regulator in a DPAK package, but with a commercial temperature range.
Best Alternatives to CJ7815B-TFN-ARG
Find and compare replacements for the CJ7815B-TFN-ARG, a 15V 1A linear voltage regulator in a TO-252 package. Review key parametric differences and package compatibility before selection.
AI replacement insight
Electrical riskmedium
Some candidates have a narrower temperature range (0°C start) which may not be suitable for all applications.
Package riskhigh
Many alternatives are in different packages (D2PAK, TO-220) requiring PCB layout changes. Even DPAK variants should be verified.
Can it be replaced directly?
Direct replacement for CJ7815B-TFN-ARG should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The most direct path is MC7815CDTRKG, assuming the commercial temperature range is acceptable. If not, L7815ABD2T-TR is electrically robust but requires checking if the larger D2PAK package can fit.
Main risk
Package incompatibility and reduced operating temperature range are the primary risks across most alternatives.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | CJ7815B-TFN-ARG | MC7815CDTRKG | L7815ABD2T-TR | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TO-252-2L | DPAK-3 (TO-252-3) | D2PAK (TO-263) | DPAK-3 (TO-252-3) / D2PAK (TO-263) — Footprint is highly likely compatible with target's TO-252-2L.; L7815ABD2T-TR: Larger footprint than target's DPAK (TO-252). Requires layout check. | |
| Pinout | Standard 78xx | Standard 78xx | - | Standard 78xx — Pin 1-In, 2-GND, 3-Out. Tab is GND. Compatible. | |
| Current | 1.0A | 1.0A | 1.5A | 1.0A / 1.5A — matched; L7815ABD2T-TR: Provides higher output current capability. | |
| Temperature | -40°C to 125°C | 0°C to 125°C | -40°C to 125°C | 0°C to 125°C / -40°C to 125°C — Weaker than target's industrial range.; L7815ABD2T-TR: matched | |
| Tolerance | ±2% | - | ±2% | ±2% — Output voltage tolerance matches. |
Application & sourcing insights
Questions & answers
Verified drop-in options for CJ7815B-TFN-ARG 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.