Overview
The STEF033JR is a surge Protection Device made by STMicroelectronics in a UFBGA-9 package with 9 pins. -40℃~+125℃@(Tj) 3.1V~8V UFBGA-9 Surge Protection Devices (SPDs) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:STEF05LAJR, from EasyEDA) and its footprint (EasyEDA_Cloud:DSBGA-9_L1.2-W1.2-R3-C3-P0.40-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2155686).
Symbol
Footprint
Parameters
9- FET Type
- Integrated FET
- Features
- Thermal Protection；Overcurrent Protection；Overvoltage clamping protection；Under-voltage lockout；Short-Circuit Protection；Soft-start
- Height
- 0.55mm
- Length
- 1.19mm
- Mounting Type
- Surface Mount
- Operating temperature
- -40℃~+125℃
- RDS(on)
- 25mΩ
- Trigger Current
- 2.5A
- Voltage Rating
- 3.1V~8V
Order codes
1- STEF033JRLCSC C2155686
Pinout
9| Pin | Name | Type |
|---|---|---|
| A1 | I-lim+ | Unspecified |
| A2 | En/Fault | Unspecified |
| A3 | GND | Unspecified |
| B1 | VCC | Unspecified |
| B2 | VCC | Unspecified |
| B3 | VCC | Unspecified |
| C1 | VOUT/source | Unspecified |
| C2 | VOUT/source | Unspecified |
| C3 | VOUT/source | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/st/STEF033JR" title="STEF033JR in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/st/STEF033JR.jpg" alt="STEF033JR" width="1200" height="900">[](https://pcbkit.io/parts/st/STEF033JR)Questions
Is there a KiCad symbol and footprint for the STEF033JR?
Yes. The symbol is EasyEDA_Cloud:STEF05LAJR and the footprint EasyEDA_Cloud:DSBGA-9_L1.2-W1.2-R3-C3-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 STEF033JR?
UFBGA-9, with 9 pins. Its footprint is drawn on this page.
Where is the STEF033JR datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the STEF033JR?
JLCPCB lists it as part C2155686, with 0 in stock; the sellers' links on this page open their listings.
What can replace the STEF033JR?
Parts like it in the library: the STEF033AJR by STMicroelectronics and the STEF05LAJR by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
