
Overview
The SD18X is an uncategorised made by MDD in a SOD-523 package with 2 pins. SOD-523 ESD and Surge Protection (TVS/ESD) ROHS.
PCBKit's library has its footprint (Diode_SMD:D_SOD-523, from KiCad's library), ready for a KiCad board. 2,000 are in stock at JLCPCB (part C53190150).
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
10- Clamping Voltage
- 40V
- Junction Capacitance
- 60pF
- Number of Channels
- Single-channel
- Operating Temperature
- -55℃~+150℃
- Peak Pulse Power Dissipation (Ppp)
- 360W@8/20us
- Polarity
- Unidirectional
- Reverse Leakage Current (Ir)
- 1uA
- Reverse Stand-Off Voltage (Vrwm)
- 18V
- Voltage - Breakdown
- 19.5V
- level of protection
- IEC 61000-4-4
Order codes
1- SD18XLCSC C53190150
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<iframe src="https://pcbkit.io/embed/parts/mdd/SD18X" title="SD18X in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/mdd/SD18X.jpg" alt="SD18X" width="1200" height="900">[](https://pcbkit.io/parts/mdd/SD18X)Questions
Is there a KiCad symbol and footprint for the SD18X?
Yes. 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 SD18X?
SOD-523, with 2 pins. Its footprint is drawn on this page.
Where is the SD18X datasheet?
MDD publishes it: the Datasheet link on this page opens it.
Where can I order the SD18X?
JLCPCB lists it as part C53190150, with 2,000 in stock; the sellers' links on this page open their listings.
What can replace the SD18X?
Parts like it in the library: the BZX584C18V by Yangzhou Yangjie Electronic Technology, the SE18VFBD522 by SSGSEMI, the SZ18VGD522 by SSGSEMI and the SE18VFD522 by SSGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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