Is there a pin-compatible replacement for L7805ABV?

Yes, many regulators like the L7805CV from various manufacturers share the same TO-220 package and standard pinout (Input, Ground, Output). Always confirm the pinout in the candidate's datasheet before installation.

What risks should I check before replacing L7805ABV?

Key risks include differences in maximum input voltage, output current capability, and operating temperature range. A substitute must meet or exceed the original part's ratings to ensure reliability. Also, verify the package and pinout are identical.

L7805ABV Alternatives, Datasheet & Cross Reference | STMicroelectronics

The L7805ABV is a popular 3-terminal positive voltage regulator in a TO-220 package, delivering a fixed 5V output at up to 1.5A. It is widely used in power supplies due to its built-in protection features.

AI replacement insight

Electrical riskmedium

Substitutes may have different temperature ranges or current ratings.

Package risklow

Many TO-220 clones exist, but SMD variants require redesign.

Sourcing risklow

The 7805 series is a multi-sourced commodity part.

Can it be replaced directly?

Several manufacturers produce L7805CV regulators that are strong candidates, but differences in operating temperature or current ratings are common and must be checked.

Best replacement path

Cross-reference to other L7805CV variants in the TO-220 package.

Main risk

The primary risk is selecting a substitute with a lower operating temperature range or lower current rating, which could lead to failure in demanding applications.

Recommended alternatives

A cross-vendor alternative in the same package with matching key electricals, but a narrower temperature range.

View details

Alternative comparison matrix

Feature / factor	L7805ABV	L7805CV(XBLW)	LM7805CTG	L7805CV(UMW)	Compatibility / risk
Package	TO-220	TO-220	TO-220-3	TO-220	TO-220 / TO-220-3 — Package matches target.; LM7805CTG: Package is compatible.; L7805CV(UMW): Package matches target.
Voltage	35V	40V	5.0V	5.0V	40V / 5.0V — Higher max input voltage provides more margin.; LM7805CTG: Output voltage matches.; L7805CV(UMW): Output voltage matches.
Current	1.5A	1.5A	1.5A	1.2A	1.5A / 1.2A — Output current matches.; LM7805CTG: Output current matches.; L7805CV(UMW): Lower output current capability.
Temperature	-40°C to 125°C	-20°C to 125°C	0°C to 125°C	-40°C to 125°C	-20°C to 125°C / -40°C to 125°C — Narrower operating temperature range.; LM7805CTG: Narrower operating temperature range.; L7805CV(UMW): Operating temperature matches.

Application & sourcing insights

Questions & answers

The best alternatives are other 7805-series regulators in a TO-220 package, such as the L7805CV. It's crucial to verify parameters like operating temperature and output current, as these can vary between manufacturers.