

Overview
The UP1966E is a gaN Transistor made by EPC in a WLCSP-12-B(1.6x1.6) package with 12 pins. -40℃~+125℃ 120uA 2 20ns 20ns 4.5V~5.5V 4ns 8ns Half-Bridge MOSFET Under Voltage Protection WLCSP-12-B(1.6x1.6) Gate Drivers ROHS.
PCBKit's library has its footprint (EasyEDA_Cloud:WLCSP-12_L1.6-W1.6-R4-C4-P0.40-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3654946). 1 open-source board in 1 repository on GitHub use it.
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
11- Driven Configuration
- Half-Bridge
- Fall Time
- 4ns
- Features
- Built-in bootstrap diode;Dead-time control
- Load Type
- MOSFET
- Number of Drivers
- 2
- Operating Temperature
- -40℃~+125℃
- Propagation Delay tpHL
- 20ns
- Propagation Delay tpLH
- 20ns
- Quiescent Current(Iq)
- 120uA
- Rise Time
- 8ns
- Voltage - Supply
- 4.5V~5.5V
Order codes
1- UP1966ELCSC C3654946
Open-source boards using it
All 1- 6 layers75 × 50 mm

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Is there a KiCad symbol and footprint for the UP1966E?
Yes. the footprint EasyEDA_Cloud:WLCSP-12_L1.6-W1.6-R4-C4-P0.40-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the UP1966E?
WLCSP-12-B(1.6x1.6), with 12 pins. Its footprint is drawn on this page.
Where is the UP1966E datasheet?
EPC publishes it: the Datasheet link on this page opens it.
Where can I order the UP1966E?
JLCPCB lists it as part C3654946, with 0 in stock; the sellers' links on this page open their listings.
Which open-source boards use the UP1966E?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.