What risks should I check before replacing LM339DR?

Check pinout, output type, supply range, temperature range, and lifecycle status.

LM339DR Alternatives, Datasheet & Cross Reference | ROHM

LM339DR is a quad open-collector comparator in SOP-14. LM2901DR is the only close candidate found, but pinout review is required.

AI replacement insight

Electrical riskmedium

core specs match, source needs review

Package risklow

SOP-14 and 14 pins listed

Firmware risklow

analog comparator, no firmware

Sourcing riskmedium

target and candidate show NRND

Can it be replaced directly?

Direct replacement for LM339DR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Review LM2901DR as a close SOP-14 quad comparator candidate.

Main risk

Pinout evidence is missing and the candidate PDF is pending review.

Recommended alternatives

LM2901DR is a close SOP-14 quad comparator candidate for LM339DR.

View details

Alternative comparison matrix

Feature / factor	LM339DR	LM2901DR	Compatibility / risk
Package	SOP-14	SOP-14	SOP-14 — same package text
Pinout	14-pin comparator	14-pin comparator	14-pin comparator — pin map absent
Voltage	2V to 36V	2V to 36V	2V to 36V — same supply range
Interface	open collector	open collector	open collector — same output type
Temperature	0C to 70C	-40C to 105/125C	-40C to 105/125C — wider listed range

Application & sourcing insights

Questions & answers

Verified drop-in options for LM339DR 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.