What risks should I check before replacing LM7805CTG?

Before replacing, check three key things: 1) Package: ensure it's a TO-220 through-hole part. 2) Electrical Ratings: confirm the output current is at least 1.5A and max input voltage is at least 35V. 3) Pinout: verify the pin configuration is Input, Ground, Output.

LM7805CTG Alternatives, Datasheet & Cross Reference | HANSCHIP semiconductor

The LM7805CTG is a popular 5V, 1.5A linear voltage regulator in a TO-220 package. This page provides reviewed alternatives, including pin-compatible options and functional substitutes, to help with sourcing and design.

AI replacement insight

Package riskmedium

Ensure replacement is also a TO-220 through-hole package, not a surface-mount variant.

Electrical risklow

Verify output current is >= 1.5A and max input voltage is >= 35V.

Sourcing risklow

The 7805 is a very common part with many manufacturers, making sourcing generally easy.

Can it be replaced directly?

Direct replacement for LM7805CTG should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Use a cross-vendor 7805 series part in a TO-220 package, such as the L7805ABV from STMicroelectronics.

Main risk

The main risk is substituting a part with a different package (e.g., surface-mount TO-252) or lower electrical ratings for voltage and current.

Recommended alternatives

Excellent alternative from STMicroelectronics in the same package with a wider temperature range.

View details

Alternative comparison matrix

Feature / factor	LM7805CTG	L7805ABV	L7805CV(XBLW)	78D05	Compatibility / risk
Package	TO-220-3	TO-220	TO-220	TO-252	TO-220 / TO-252 — matched; L7805CV(XBLW): matched; 78D05: Candidate is Surface Mount, Target is Through-Hole.
Voltage	35V	35V	40V	35V	35V / 40V — Max Input Voltage; L7805CV(XBLW): Max Input Voltage; 78D05: Max Input Voltage
Current	1.5A	1.5A	1.5A	1.5A	1.5A — matched; L7805CV(XBLW): matched; 78D05: matched
Temperature	0°C to 125°C	-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 — Wider operating range.; L7805CV(XBLW): Wider operating range.; 78D05: matched

Application & sourcing insights

Questions & answers

Verified drop-in options for LM7805CTG 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.