What risks should I check before replacing LM2901DR?

Verify pinout, temperature range, output type, supply range, response time, and lifecycle status.

LM2901DR Alternatives, Datasheet & Cross Reference | ROHM

LM2901DR is an NRND SOP-14 quad open-collector comparator. LM339DR is the only kept same-role candidate here, but it needs pinout and temperature review.

AI replacement insight

Electrical riskmedium

temp max may be lower

Package riskmedium

package matches, pinout missing

Firmware risklow

analog comparator, no firmware

Sourcing riskmedium

target and candidate show NRND

Can it be replaced directly?

Direct replacement for LM2901DR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Review LM339DR first, then verify pinout, temp grade, and datasheet revision.

Main risk

Missing pinout evidence and weaker temperature rating.

Recommended alternatives

LM339DR is a same-role SOP-14 quad comparator candidate, but pinout and temp grade need review.

View details

Alternative comparison matrix

Feature / factor	LM2901DR	LM339DR	Compatibility / risk
Package	SOP-14	SOP-14	SOP-14 — same package name
Pinout	not provided	not provided	not provided — no pin map evidence
Voltage	2V to 36V	2V to 36V	2V to 36V — supply range aligns
Temperature	-40C to +125C	-40C to +105C/+85C	-40C to +105C/+85C — grade may not cover target
Interface	quad OC comparator	quad OC comparator	quad OC comparator — same function

Application & sourcing insights

Questions & answers

Verified drop-in options for LM2901DR 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.