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LM393M-NOPB

Texas Instruments LM393M/NOPB General Purpose Comparator

MPNLM393M/NOPB
Active

Texas Instruments LM393M/NOPB, General Purpose comparator, dual, 700ns propagation delay, 2V to 36V supply, open-collector output, 8-SOIC package, 0°C to 70°C.

$0.9700Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM393M/NOPB specifications
ParameterValue
TypeGeneral Purpose
Output typeCMOS, DTL, ECL, MOS, Open-Collector, TTL
MountingSurface Mount
Voltage - input offset5mV @ 30V
Voltage - supply, single (Dual (±))2V ~ 36V, ±1V ~ 18V
Output current16mA @ 5V
Current - quiescent2.5mA
Current - input bias0.25µA @ 5V
Operating temperature0°C~70°C
PackageTube
Case8-SOIC (0.154\", 3.90mm Width)
Number of elements2
Propagation delay700ns

Product details

Dual comparator with a wide supply range — the BOM-fit angle

The open-collector output stage is compatible with CMOS, TTL, ECL, and MOS logic families — the pull-up resistor is your choice, which lets you set the output swing to match the downstream logic voltage.

The 700 ns propagation delay (max) sets the bandwidth ceiling. For a 5V supply, that translates to a practical comparison rate around 1.4 MHz — fast enough for overcurrent detection, zero-crossing, and window comparators in motor drives and power supplies, but not for high-speed data recovery or RF envelope detection. Input offset voltage is 5 mV max at 30V, and input bias current is 0.25 µA max at 5V — both tight enough for precision threshold sensing without external trimming in most industrial set-point circuits.

The NOPB suffix confirms lead-free / RoHS-compliant plating — no exemption paperwork needed for EU or RoHS-restricted markets.

Frequently asked questions

What is the difference between LM393M and LM393M/NOPB?

The NOPB suffix indicates lead-free / RoHS-compliant plating. The LM393M (without NOPB) may use tin-lead solder — check the date code and your assembly process requirements. Electrically the two are identical.

Is LM393M/NOPB compatible with 5V logic?

Yes. The open-collector output with a pull-up resistor to 5V produces a 0V-to-5V swing that is directly compatible with 5V CMOS and TTL logic inputs. The supply can be 5V single or any voltage from 2V to 36V.