

Overview
The RB751S-40 is a schottky Diode made by Jiangsu Changjing Electronics Technology (CJ) in a SOD-523 package with 2 pins. 1 Independent 200mA 30mA 370mV@1mA 40V 500nA@30V SOD-523 Schottky Diodes ROHS.
PCBKit's library has its KiCad symbol (Device:D_Schottky, from KiCad's library) and its footprint (Diode_SMD:D_SOD-523, from KiCad's library), ready for a KiCad board. 22,529 are in stock at JLCPCB (part C8524). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Parameters
8- Current - Rectified
- 30mA
- Diode Configuration
- 1 Independent
- Non-Repetitive Peak Forward Surge Current
- 200mA
- Operating Junction Temperature Range
- -40℃~+125℃
- Power Dissipation
- 150mW
- Reverse Leakage Current (Ir)
- 500nA@30V
- Voltage - DC Reverse(Vr)
- 40V
- Voltage - Forward(Vf@If)
- 370mV@1mA
Order codes
1- RB751S-40LCSC C8524
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
Open-source boards using it
All 2- 2 layers132.8 × 93 mm

- 2 layers

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/cj/RB751S-40" title="RB751S-40 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cj/RB751S-40.jpg" alt="RB751S-40" width="1200" height="900">[](https://pcbkit.io/parts/cj/RB751S-40)Questions
Is there a KiCad symbol and footprint for the RB751S-40?
Yes. The symbol is Device:D_Schottky and 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 RB751S-40?
SOD-523, with 2 pins. Its footprint is drawn on this page.
Where is the RB751S-40 datasheet?
Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.
Where can I order the RB751S-40?
JLCPCB lists it as part C8524, with 22,529 in stock; the sellers' links on this page open their listings.
What can replace the RB751S-40?
Parts like it in the library: the B5819WT by hongjiacheng, the SD103AWT by hongjiacheng, the B5819WT by GOODWORK and the BAS40X by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the RB751S-40?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8B5819WT
SOD-523Schottky DiodeshongjiachengSD103AWT
SOD-523Schottky DiodeshongjiachengB5819WT
SOD-523Schottky DiodesGOODWORKBAS40X
SOD-523Schottky DiodeshongjiachengBAT64-02W
SOD-523250mA 2A 40V 5uA@30V 600mV@200mA Independent SOD-523 Schottky Diodes ROHSShikuesSchottky DiodesSDM20U40
SOD-523-65℃~+150℃ 1 Independent 250mA 40V 5uA@30V 600mV@200mA SOD-523 Schottky Diodes ROHSDiodes IncorporatedSchottky DiodesTPMEG3005EB
SOD-523Schottky DiodesTECH PUBLICSD103AX
SOD-523-40℃~+125℃ 1 Independent 2A 350mA 40V 5uA@30V 600mV@200mA SOD-523 Schottky Diodes ROHSBORNSchottky Diodes