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SM03 on a board, in 3D

SM03

UMW

1 20uA 3.3V 350W@8/20us 450pF 4V 7V Bidirectional IEC 61000-4-2、IEC 61000-4-4 SOT-23 ESD and Surge Protection (TVS/ESD) ROHS

Extended
DatasheetJLCPCBLCSCumw/SM03
Category
ESD And Surge Protection (TVS, ESD)
Package
SOT-23
Pins
3

Overview

The SM03 is an ESD And Surge Protection made by UMW in a SOT-23 package with 3 pins. 1 20uA 3.3V 350W@8/20us 450pF 4V 7V Bidirectional IEC 61000-4-2、IEC 61000-4-4 SOT-23 ESD and Surge Protection (TVS/ESD) ROHS.

PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 617 are in stock at JLCPCB (part C2833278).

Symbol

The library has no symbol for this part yet.

Footprint

123
Package_TO_SOT_SMD:SOT-23From KiCad's library

Parameters

10
Clamping Voltage
7V
Junction Capacitance
450pF
Number of Channels
2
Peak Pulse Power Dissipation (Ppp)
350W@8/20us
Polarity
Bidirectional
Reverse Leakage Current (Ir)
20uA
Reverse Stand-Off Voltage (Vrwm)
3.3V
Type
TVS
Voltage - Breakdown
4V
level of protection
IEC 61000-4-2

Order codes

1

Show this part on your page

A live frame, for any web page
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A picture
<img src="https://pcbkit.io/embed/parts/umw/SM03.jpg" alt="SM03" width="1200" height="900">
A picture that opens the part, for a README
[![SM03](https://pcbkit.io/embed/parts/umw/SM03.jpg?size=s)](https://pcbkit.io/parts/umw/SM03)

Questions

Is there a KiCad symbol and footprint for the SM03?

Yes. 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?

UMW publishes it: the Datasheet link on this page opens it.

Where can I order the SM03?

JLCPCB lists it as part C2833278, with 617 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