Overview
The SD18C is an ESD And Surge Protection made by Leiditech in a SOD-323 package with 2 pins. 15A 18V 1uA 20V 40V 57pF IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 TVS SOD-323 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-323, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C384862).
Symbol
Footprint
Parameters
8- Clamping Voltage
- 40V
- Junction Capacitance
- 57pF
- Peak Pulse Current (Ipp)
- 15A
- Reverse Leakage Current (Ir)
- 1uA
- Reverse Stand-Off Voltage (Vrwm)
- 18V
- Type
- TVS
- Voltage - Breakdown
- 20V
- level of protection
- IEC 61000-4-2, IEC 61000-4-5, IEC 61000-4-4
Order codes
1- SD18CLCSC C384862
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
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<iframe src="https://pcbkit.io/embed/parts/leiditech/SD18C" title="SD18C in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/leiditech/SD18C.jpg" alt="SD18C" width="1200" height="900">[](https://pcbkit.io/parts/leiditech/SD18C)Questions
Is there a KiCad symbol and footprint for the SD18C?
Yes. The symbol is Device:D_TVS and the footprint Diode_SMD:D_SOD-323, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SD18C?
SOD-323, with 2 pins. Its footprint is drawn on this page.
Where is the SD18C datasheet?
Leiditech publishes it: the Datasheet link on this page opens it.
Where can I order the SD18C?
JLCPCB lists it as part C384862, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SD18C?
Parts like it in the library: the ESDBL18VD3N by BORN, the SDD32C18L01 by Brightking, the CDSOD323-T18LC by TECH PUBLIC and the TPGC18C by TECH PUBLIC. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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