

Overview
The B1040W is a schottky Diode made by GOODWORK in a SOD-123 package with 2 pins. SOD-123 Schottky Diodes ROHS.
PCBKit's library has its KiCad symbol (Device:D_Schottky, from KiCad's library) and its footprint (Diode_SMD:D_SOD-123, from KiCad's library), ready for a KiCad board. 15,000 are in stock at JLCPCB (part C56149456). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
6- Current - Rectified
- 1A
- Non-Repetitive Peak Forward Surge Current
- 9A
- Operating Junction Temperature Range
- -65℃~+125℃
- Reverse Leakage Current (Ir)
- 50uA
- Voltage - DC Reverse(Vr)
- 40V
- Voltage - Forward(Vf@If)
- 580mV@1.0A
Order codes
1- B1040WLCSC C56149456
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
Open-source boards using it
All 1- 2 layers

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<iframe src="https://pcbkit.io/embed/parts/goodwork/B1040W" title="B1040W in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/goodwork/B1040W.jpg" alt="B1040W" width="1200" height="900">[](https://pcbkit.io/parts/goodwork/B1040W)Questions
Is there a KiCad symbol and footprint for the B1040W?
Yes. The symbol is Device:D_Schottky and the footprint Diode_SMD:D_SOD-123, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the B1040W?
SOD-123, with 2 pins. Its footprint is drawn on this page.
Where can I order the B1040W?
JLCPCB lists it as part C56149456, with 15,000 in stock; the sellers' links on this page open their listings.
What can replace the B1040W?
Parts like it in the library: the B5819W by GOODWORK, the B5819W SL by Jiangsu Changjing Electronics Technology (CJ), the B5819W by MDD and the B5819W by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the B1040W?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8B5819W
SOD-123-65℃~+125℃ 1A 40V 50uA 580mV@1A 9A Independent SOD-123 Schottky Diodes ROHSGOODWORKSchottky DiodesB5819W SL
SOD-1231A 40V 600mV@1A 9A Independent SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky DiodesB5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky DiodesB5819W
SOD-123-55℃~+150℃ 1A 1mA@30V 40V 600mV@1A 9A Independent SOD-123 Schottky Diodes ROHShongjiachengSchottky DiodesB5819W
SOD-123-40℃~+125℃ 1A 1mA@40V 40V 600mV@1A 9A Independent SOD-123 Schottky Diodes ROHSHXY MOSFETSchottky DiodesDSK24
SOD-123-55℃~+125℃ 1 Independent 2A 40V 45A 500uA 550mV@2A SOD-123 Schottky Diodes ROHSFUXINSEMISchottky DiodesDSK34
SOD-123-55℃~+125℃ 1 Independent 3A 40V 500uA 550mV@3A 60A SOD-123 Schottky Diodes ROHSFUXINSEMISchottky DiodesB5819W
SOD-123-55℃~+125℃ 1A 1mA@40V 25A 40V 900mV@3A Independent SOD-123 Schottky Diodes ROHS晶导微电子Schottky Diodes