Overview
The SM03 is an ESD And Surge Protection made by Leiditech in a SOT-23 package with 3 pins. 100uA 15V 200pF 20A 3.3V 350W@8/20us 5V IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 TVS SOT-23 ESD and Surge Protection (TVS/ESD) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SM03, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C384871).
Symbol
Footprint
Parameters
11- Clamping Voltage
- 15V
- Junction Capacitance
- 200pF
- Number of Channels
- 2
- Peak Pulse Current (Ipp)
- 20A
- Peak Pulse Power Dissipation (Ppp)
- 350W@8/20us
- Polarity
- Unidirectional
- Reverse Leakage Current (Ir)
- 100uA
- Reverse Stand-Off Voltage (Vrwm)
- 3.3V
- Type
- TVS
- Voltage - Breakdown
- 5V
- level of protection
- IEC 61000-4-2, IEC 61000-4-5, IEC 61000-4-4
Order codes
1- SM03LCSC C384871
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | 1 | Unspecified |
| 2 | 2 | Unspecified |
| 3 | 3 | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/leiditech/SM03" title="SM03 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/SM03.jpg" alt="SM03" width="1200" height="900">[](https://pcbkit.io/parts/leiditech/SM03)Questions
Is there a KiCad symbol and footprint for the SM03?
Yes. The symbol is EasyEDA_Cloud:SM03 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SM03?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the SM03 datasheet?
Leiditech publishes it: the Datasheet link on this page opens it.
Where can I order the SM03?
JLCPCB lists it as part C384871, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SM03?
Parts like it in the library: the PESD3V3S2UT by Nexperia, the ESDA5V3L-ES by ElecSuper, the PESD3V3S2UT-N by BORN and the SET23A03L02 by Brightking. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
PESD3V3S2UT
SOT-2318A 2 207pF 20V 2uA 3.3V 330W@8/20us 5.2V ESD IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT-23 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)ESDA5V3L-ES
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SOT-23-55℃~+125℃ 100nA 16V 2 200pF 20A@8/20us 3.3V 350W@8/20us 6.5V ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional SOT-23 ESD and Surge Protection (TVS/ESD) ROHSBORNESD And Surge Protection (TVS/ESD)MMBZ5V6ALT1G
SOT-2310nA 120pF 14V 150W@8/20us 2 3.3V 4.8V 7A@8/20us IEC 61000-4-2、IEC 61000-4-4 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)D1213A-01SO
SOT-23-65℃~+150℃ 0.85pF 1 100nA 10V 3.3V 5A@8/20us 6V ESD IEC 61000-4-2 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSDiodes IncorporatedESD And Surge Protection (TVS/ESD)