Specs side by side
2 parts compared · 0 differing specs across 5 total parameters.
| Parameter | ||
|---|---|---|
| Case | DIP-14 / SOIC-14 | DIP-14 / SOIC-14 |
| Component Category | Voltage Comparators (Quad) | Voltage Comparators (Quad) |
| Market Reality | The LM339 is the quad comparator - four open-collector channels in a 14-pin body, ground-sensing inputs, single-supply operation, and window/threshold duty in everything from battery chargers to appliance boards. The family is a temperature ladder wearing different numbers: LM139 military, LM239 industrial, LM339 commercial, LM2901 automotive-extended, all electrically identical and pin-identical, with the newer B-generation documented as a drop-in across the row. And the constant companion of this page is the part it is NOT: the LM324 quad op-amp, whose same-size 14-pin body has a different pinout and a linear output - the pair that every electronics course warns about and every parts drawer still manages to mix. | The LM339 is the quad comparator - four open-collector channels in a 14-pin body, ground-sensing inputs, single-supply operation, and window/threshold duty in everything from battery chargers to appliance boards. The family is a temperature ladder wearing different numbers: LM139 military, LM239 industrial, LM339 commercial, LM2901 automotive-extended, all electrically identical and pin-identical, with the newer B-generation documented as a drop-in across the row. And the constant companion of this page is the part it is NOT: the LM324 quad op-amp, whose same-size 14-pin body has a different pinout and a linear output - the pair that every electronics course warns about and every parts drawer still manages to mix. |
| Role In Circuit | Original Reference Part | Original Reference Part |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | Active Shenzhen Spot Sourcing (24–48h) |