
WALTsm
google/walt
A device for measuring latency of physical sensors and outputs on phones and computers

The LM321MFX is an operational Amplifier made by Texas Instruments in a SOT-23-5 package with 5 pins. -40℃~+85℃ 1 1MHz 3V~30V 400V/ms 40mA 40nV/√Hz@1kHz 430uA 500nA 5nA 7mV 85dB SOT-23-5 Operational Amplifier ROHS.
PCBKit's library has its KiCad symbol (Amplifier_Operational:LM321, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23-5, from KiCad's library), ready for a KiCad board. 176,712 are in stock at JLCPCB (part C9405). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | + | Input |
| 2 | V- | Power in |
| 3 | - | Input |
| 4 | — | Output |
| 5 | V+ | Power in |

google/walt
A device for measuring latency of physical sensors and outputs on phones and computers
<iframe src="https://pcbkit.io/embed/parts/ti/LM321MFX" title="LM321MFX 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/LM321MFX.jpg" alt="LM321MFX" width="1200" height="900">[](https://pcbkit.io/parts/ti/LM321MFX)Yes. The symbol is Amplifier_Operational:LM321 and the footprint Package_TO_SOT_SMD:SOT-23-5, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOT-23-5, with 5 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C9405, with 176,712 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the LM321MF by UMW, the TLV9061IDBV by Texas Instruments, the LM321-TR by Gainsil and the AS321KTR-G1 by Diodes Incorporated. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.