ProjectsPricingInsights

Best Alternatives to LM321

Package: SOT-23-5Slkor(SLKORMICRO Elec.)LogicNumber of Circuits: 1Supply Voltage (VCC): 24V or ±12VQuiescent Current: 430 µASlew Rate: 0.4 V/µsCommon Mode Rejection Ratio (CMRR): 90 dB

LM321 is a single low-power op amp. The only close catalog candidate here is another LM321 SOT-23-5 op amp, but pinout still needs review.

AI replacement insight

Electrical riskmedium

CMRR, offset, input range, and swing need checks

Package riskmedium

same package, but pinout not verified

Firmware risklow

analog op amp, no firmware interface

Sourcing riskmedium

candidate lifecycle is not clearly stated

Can it be replaced directly?

No verified pin-compatible replacement is proven from the provided evidence.

Best replacement path

Review LM321G-AE5-R first because it matches function, package, supply range, Iq, and slew rate.

Main risk

Pinout and analog limits are not fully verified.

Recommended alternatives

1
LM321G-AE5-R package
LM321G-AE5-R

UTC(Unisonic Tech)

Needs validationmedium risk

LM321G-AE5-R is a close SOT-23-5 LM321 op amp candidate needing pinout review.

View details

Alternative comparison matrix

Feature / factorLM321LM321G-AE5-RAlt 2Alt 3Compatibility / risk
Applicationsingle op ampsingle op ampsingle op amp — same function
PackageSOT-23-5SOT-23-5SOT-23-5 — same package
Pinout5 pins5 pins5 pins — pin functions not shown
Voltage24 V3 V to 32 V3 V to 32 V — covers 24 V
Temperature0 C to 70 C-40 C to 85 C-40 C to 85 C — wider range
Current430 uA430 uA430 uA — Iq listed same

Application & sourcing insights

Questions & answers

LM321G-AE5-R is the best candidate in this set, but it needs pinout and analog-spec review.