Is there a pin-compatible replacement for MC7805BD2TR4G?

MC7805CD2TR4G shares the same D2PAK-3 package and pinout, but its operating temperature range is narrower (0°C to 125°C vs. -40°C to 125°C). Full pin-to-pin compatibility depends on whether your application operates below 0°C.

What risks should I check before replacing MC7805BD2TR4G?

Key risks include package differences requiring PCB layout changes (e.g., DPAK vs. D2PAK), and a narrower operating temperature range on commercial-grade alternatives. Always verify the substitute's thermal performance and physical fit in your design.

MC7805BD2TR4G Alternatives, Datasheet & Cross Reference | onsemi

MC7805BD2TR4G is a robust 5V, 1A linear voltage regulator from onsemi, offered in a D2PAK-3 package and qualified for a wide -40°C to +125°C operating range. It is a popular choice for automotive and industrial power supplies.

AI replacement insight

Package riskhigh

Most alternatives are in different packages (DPAK, SOT-223) and are not drop-in replacements.

Electrical riskmedium

Some parts have a narrower temperature range. LDO topology may affect stability if not designed for.

Can it be replaced directly?

No direct, fully-equivalent replacement was found. MC7805CD2TR4G is the closest but has a limited temperature range. Other candidates are functionally similar but require a new PCB layout.

Best replacement path

MC7805CD2TR4G is the closest form-factor match, but requires verifying the application's minimum operating temperature.

Main risk

The primary risks are package incompatibility requiring a board redesign and reduced operating temperature range in non-automotive grade parts.

Recommended alternatives

Shares the same package and key electricals but has a commercial temperature range.

View details

Alternative comparison matrix

Feature / factor	MC7805BD2TR4G	MC7805CD2TR4G	NCV7805BDTRKG	Compatibility / risk
Package	D2PAK-3	D2PAK-3	DPAK-3	D2PAK-3 / DPAK-3 — Package matches, enabling potential drop-in.; NCV7805BDTRKG: Different package requires PCB redesign.
Output Voltage	5 V	5.0 V	5.0 V	5.0 V — matched; NCV7805BDTRKG: matched
Output Current	1 A	1.0 A	-	1.0 A — matched
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 — Candidate has a commercial temp range, not automotive.; NCV7805BDTRKG: Automotive temperature range matches.
Application	Automotive (implied)	-	AEC-Q100	AEC-Q100 — Automotive qualification matches target.

Application & sourcing insights

Questions & answers

The best alternative depends on your application's constraints. For the same package, MC7805CD2TR4G is a close match but has a commercial temperature range (0°C to 125°C). For automotive applications requiring a different package, NCV7805BDTRKG is a strong functional alternative.