

Overview
The S3N is a diodes General Purpose made by onsemi in a SMC(DO-214AB) package with 2 pins. -55℃~+150℃ 1.2V@3A 1.2kV 100A 3A 5uA@1.2kV Independent SMC(DO-214AB) Diodes - General Purpose ROHS.
PCBKit's library has its KiCad symbol (Device:D, from KiCad's library) and its footprint (Diode_SMD:D_SMC, from KiCad's library), ready for a KiCad board. 9,119 are in stock at JLCPCB (part C719829). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
7- Current - Rectified
- 3A
- Diode Configuration
- Standalone
- Non-Repetitive Peak Forward Surge Current
- 100A
- Operating Junction Temperature Range
- -55℃~+150℃
- Reverse Leakage Current (Ir)
- 5uA@1.2kV
- Voltage - DC Reverse(Vr)
- 1.2kV
- Voltage - Forward(Vf@If)
- 1.2V@3A
Order codes
1- S3NLCSC C719829
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
Open-source boards using it
All 1- 4 layers112.5 × 120 mm

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<iframe src="https://pcbkit.io/embed/parts/onsemi/S3N" title="S3N in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/S3N.jpg" alt="S3N" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/S3N)Questions
Is there a KiCad symbol and footprint for the S3N?
Yes. The symbol is Device:D and the footprint Diode_SMD:D_SMC, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the S3N?
SMC(DO-214AB), with 2 pins. Its footprint is drawn on this page.
Where is the S3N datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the S3N?
JLCPCB lists it as part C719829, with 9,119 in stock; the sellers' links on this page open their listings.
What can replace the S3N?
Parts like it in the library: the S8NC by Diodes Incorporated, the S8NC by FUXINSEMI, the S3Y by DIOTEC and the S3T-HF by Comchip. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the S3N?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8S8NC
SMC(DO-214AB)-65℃~+150℃ 1 Independent 1.2kV 220nA@1.2kV 8A 980mV@8A SMC(DO-214AB) Diodes - General Purpose ROHSDiodes IncorporatedDiodes - General PurposeS8NC
SMC-55℃~+150℃ 1 Independent 1.1V@8A 1.2kV 225A 5uA 8A SMC Diodes - General Purpose ROHSFUXINSEMIDiodes - General PurposeS3Y
DO-214AB(SMC)-50℃~+150℃ 1 Independent 1.15V@3A 110A 2kV 3A 5uA@2000V DO-214AB(SMC) Diodes - General Purpose ROHSDIOTECDiodes - General PurposeS3T-HF
DO-214AB(SMC)DO-214AB(SMC) Diodes - General Purpose ROHSComchipDiodes - General PurposeS3T
SMC(DO-214AB)Diodes - General PurposeDIOTECS3T-CT
SMC(DO-214AB)Diodes - General PurposeDIOTECS3W
SMC(DO-214AB)Diodes - General PurposeDIOTECS3W-CT
SMC(DO-214AB)-50℃~+150℃ 1 Independent 1.15V@3A 1.6kV 110A 3A 5uA@1600V SMC(DO-214AB) Diodes - General Purpose ROHSDIOTECDiodes - General Purpose