Overview
The SD52303 is an ESD And Surge Protection made by SMC in a SOD-523 package with 2 pins. -55℃~+150℃ 105pF 11.2A@8/20us 14.1V 158W 3.3V 50nA 5V IEC 61000-4-2 TVS SOD-523 ESD and Surge Protection (TVS/ESD) ROHS.
PCBKit's library has its KiCad symbol (Device:D_TVS, from KiCad's library) and its footprint (Diode_SMD:D_SOD-523, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3701880).
Symbol
Footprint
Order codes
1- SD52303LCSC C3701880
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
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<iframe src="https://pcbkit.io/embed/parts/smc/SD52303" title="SD52303 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/smc/SD52303.jpg" alt="SD52303" width="1200" height="900">[](https://pcbkit.io/parts/smc/SD52303)Questions
Is there a KiCad symbol and footprint for the SD52303?
Yes. The symbol is Device:D_TVS and the footprint Diode_SMD:D_SOD-523, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SD52303?
SOD-523, with 2 pins. Its footprint is drawn on this page.
Where is the SD52303 datasheet?
SMC publishes it: the Datasheet link on this page opens it.
Where can I order the SD52303?
JLCPCB lists it as part C3701880, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SD52303?
Parts like it in the library: the H3V3LD5B by hongjiacheng, the ESD5Z3V3 by MDD, the ESD5Z3.3T1G by TECH PUBLIC and the LESD5Z3.3T1G by Leshan Radio (LRC). Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
H3V3LD5B
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