
Overview
The LM311P3 is a comparator made by Texas Instruments with 8 pins. 67dB Push-pull - Comparators.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM111JG, from EasyEDA) and its footprint (EasyEDA_Cloud:PDIP-8_L9.6-W6.4-P2.54-LS7.6-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3658576).
Symbol
Footprint
Parameters
2- Common Mode Rejection Ratio (CMRR)
- 67dB
- Output Type
- Push-Pull
Order codes
1- LM311P3LCSC C3658576
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | EMIT OUT | Unspecified |
| 2 | IN+ | Unspecified |
| 3 | IN- | Unspecified |
| 4 | VCC- | Unspecified |
| 5 | BALANCE | Unspecified |
| 6 | BAL/STRB | Unspecified |
| 7 | COL OUT | Unspecified |
| 8 | VCC+ | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/ti/LM311P3" title="LM311P3 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/LM311P3.jpg" alt="LM311P3" width="1200" height="900">[](https://pcbkit.io/parts/ti/LM311P3)Questions
Is there a KiCad symbol and footprint for the LM311P3?
Yes. The symbol is EasyEDA_Cloud:LM111JG and the footprint EasyEDA_Cloud:PDIP-8_L9.6-W6.4-P2.54-LS7.6-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where can I order the LM311P3?
JLCPCB lists it as part C3658576, with 0 in stock; the sellers' links on this page open their listings.
What can replace the LM311P3?
Parts like it in the library: the LM393P3 by Texas Instruments and the LM193JGB by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.