Overview
The UM803LS is a supervisor And Reset IC made by Union Semiconductor in a SOT-23-3 package with 5 pins. SOT-23-3 Supervisor and Reset ICs ROHS.
PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-23-3, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C19857319).
Symbol
The library has no symbol for this part yet.
Footprint
Order codes
1- UM803LSLCSC C19857319
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/union-semiconductor/UM803LS" title="UM803LS in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/union-semiconductor/UM803LS.jpg" alt="UM803LS" width="1200" height="900">[](https://pcbkit.io/parts/union-semiconductor/UM803LS)Questions
Is there a KiCad symbol and footprint for the UM803LS?
Yes. the footprint Package_TO_SOT_SMD:SOT-23-3, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the UM803LS?
SOT-23-3, with 5 pins. Its footprint is drawn on this page.
Where is the UM803LS datasheet?
Union Semiconductor publishes it: the Datasheet link on this page opens it.
Where can I order the UM803LS?
JLCPCB lists it as part C19857319, with 0 in stock; the sellers' links on this page open their listings.
What can replace the UM803LS?
Parts like it in the library: the MAX809S by MSKSEMI, the UM803RS by Union Semiconductor, the HX809R-2.63V by HX and the CN803R by ShangHai Consonance Elec. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
MAX809S
SOT-23-3Supervisor And Reset ICsMSKSEMIUM803RS
SOT-23-3-40℃~+85℃ 1V~5.5V 2.63V 240ms 2uA Active Low Open Drain Voltage Monitor SOT-23-3 Supervisor and Reset ICs ROHSUnion SemiconductorSupervisor And Reset ICsHX809R-2.63V
SOT-23-3-40℃~+85℃@(Tj) 1 2.63V 2uA 350ms 900mV~6V No Voltage Monitor SOT-23-3 Supervisor and Reset ICs ROHSHXSupervisor And Reset ICsCN803R
SOT-23-3-40℃~+85℃ 1 1.15V~5.5V 140ms 2.63V 3.2uA Active Low No No Open Drain Voltage Monitor SOT-23-3 Supervisor and Reset ICs ROHSShangHai Consonance ElecSupervisor And Reset ICsTMI6809-293
SOT-23-3-40℃~+125℃@(Tj) 1 1V~5.5V 2.93V 240ms 5uA Active Low No No Push-pull Voltage Monitor SOT-23-3 Supervisor and Reset ICs ROHSTMISupervisor And Reset ICsTLV809EA29DBZ
SOT-23-3-40℃~+125℃@(TJ) 1 1.7V~6V 130ms 2.93V 250nA Active Low Push-pull Simple Reset/Power-On Reset Yes SOT-23-3 Supervisor and Reset ICs ROHSTexas InstrumentsSupervisor And Reset ICsHX61CN2202MR
SOT-23-3L-40℃~+85℃ 1.5V~12V 2.2V 2uA No No Open Drain Voltage Detector SOT-23-3L Supervisor and Reset ICs ROHSHANSCHIP semiconductorSupervisor And Reset ICsHX809RDBZRG
SOT-23-3-50℃~+95℃@(Ta) 1 1V~6V 2.63V 350ms 5.5uA Active Low No No Open Drain Voltage Monitor SOT-23-3 Supervisor and Reset ICs ROHSHANSCHIP semiconductorSupervisor And Reset ICs