
Jiangsu Changjiang Electronics Technology Co., Ltd. (CJ)
A form-fit alternative in a TO-252 package with higher current, but a narrower temperature range and slightly lower max input voltage.
L78M05CDT-TR(JSM) is a 5V, 500mA linear voltage regulator in a TO-252 package. Alternatives with similar packages exist, but require careful review of temperature range and input voltage limits.
Most alternatives have weaker temperature or input voltage specs.
TO-252/DPAK is a standard package with many options.
Direct replacement for L78M05CDT-TR(JSM) should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
CJ78D05 offers a matching package and higher current, but requires verifying the application's minimum operating temperature.
The primary risk is environmental, as most alternatives have a narrower operating temperature range than the target's -40°C to 125°C.

Jiangsu Changjiang Electronics Technology Co., Ltd. (CJ)
A form-fit alternative in a TO-252 package with higher current, but a narrower temperature range and slightly lower max input voltage.
| Feature / factor | L78M05CDT-TR(JSM) | CJ78D05 | LR7805D | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TO-252-2L | TO-252-2L | DPAK (TO-252) | TO-252-2L / DPAK (TO-252) — Package is a form-fit match.; LR7805D: Package is a form-fit match. | |
| Voltage | 36V | 35V | 5.0V | 35V / 5.0V — Slightly lower max input voltage.; LR7805D: Output voltage matches. | |
| Current | 0.5A | 1.0A | 1.0A | 1.0A — Higher output current capability.; LR7805D: Higher output current capability. | |
| Temperature | -40°C to +125°C | -25°C to +125°C | 0°C to +150°C | -25°C to +125°C / 0°C to +150°C — Narrower operating temperature range.; LR7805D: Significantly narrower operating temperature range. |
Verified drop-in options for L78M05CDT-TR(JSM) 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.