

Overview
The B5819WS is a schottky Diode made by MDD in a SOD-323 package with 2 pins. -55℃~+125℃ 1A 1mA@40V 25A 40V 900mV@3A Independent SOD-323 Schottky Diodes ROHS.
PCBKit's library has its KiCad symbol (Device:D_Schottky, from KiCad's library) and its footprint (Diode_SMD:D_SOD-323, from KiCad's library), ready for a KiCad board. 565,714 are in stock at JLCPCB (part C64886). 62 open-source boards in 49 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
6- Junction, hottest
- 125 °C · maximum operating junction temperature · p. 1
- Junction to air (SOD-323)
- 400 K/W · maximum junction to ambient thermal resistance · p. 1
- Forward current, most
- 1 A · maximum average rectified output current · p. 1
- Reverse voltage, most
- 40 V · maximum working peak reverse voltage · p. 1
- Forward voltage
- 600 mV · maximum at IF=1A, Ta=25°C · p. 1
- Forward voltage
- 900 mV · maximum at IF=3A, Ta=25°C · p. 1
What it is and has
3- Application
- Low voltage, high frequency inverters · p. 1
- Application
- Free wheeling and polarity protection · p. 1
- Marking
- SL · p. 1
Specifications
17| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Peak repetitive peak reverse voltage VRRM | B5819WS | max 40 V | 1 |
| Working peak VRWM | B5819WS | max 40 V | 1 |
| DC Blocking voltage VR | B5819WS | max 40 V | 1 |
| RMS Reverse voltage VR(RMS) | B5819WS | max 28 V | 1 |
| Average rectified output current IO | B5819WS | max 1 A | 1 |
| Peak forward surge current at 8.3ms IFSM | B5819WS | max 25 A | 1 |
| Power dissipation Pd | B5819WS | max 250 mW | 1 |
| Thermal resistance junction to ambient RΘJA | B5819WS, SOD-323 | max 400 °C/W | 1 |
| Operating Junction Temperature Range Tj | B5819WS | min -55 · max 125 ℃ | 1 |
| Storage temperature TSTG | B5819WS | min -55 · max 125 ℃ | 1 |
| Non-Repetitive peak reverse voltage VRM | B5819WS | max 40 V | 1 |
| Reverse breakdown voltage V(BR) | B5819WS, IR=10mA | min 40 V | 1 |
| Reverse voltage leakage current IR | B5819WS, TA = 25°C, VR=40V | max 1 mA | 1 |
| Reverse voltage leakage current IR | B5819WS, TA = 100°C, VR=40V | max 10 mA | 1 |
| Forward voltage VF | B5819WS, IF=1A | max 0.6 V | 1 |
| Forward voltage VF | B5819WS, IF=3A | max 0.9 V | 1 |
| Diode capacitance CD | B5819WS, VR=4V,f=1.0MHz | max 110 pF | 1 |
Parameters
11- Current - Rectified
- 1A
- Diode Configuration
- Standalone
- Junction Temperature(Max)
- 125℃
- Non-Repetitive Peak Forward Surge Current
- 25A
- Operating Junction Temperature Range
- -55℃~+125℃
- Power Dissipation
- 250mW
- Reverse Leakage Current (Ir)
- 1mA@40V
- Thermal Resistance(Junction to Ambient)
- 400℃/W
- Voltage - DC Reverse(Vr)
- 40V
- Voltage - Forward(Vf)
- 600mV
- Voltage - Forward(Vf@If)
- 900mV@3A
Order codes
1- B5819WSLCSC C64886
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
Open-source boards using it
All 62- 4 layers30 × 30 mm

- 2 layers30 × 94 mm

- 2 layers89.8 × 10.2 mm

- 4 layers105 × 55 mm

MotorKit
zhbi98/ODriveX
【无刷电机FOC驱动器】双通道 FOC 无刷电机驱动套件,最高电压 60V 单通道电流可达 100A,可以驱动 1.2kW 以内 BLDC 或 PMSM(有中文注释)。
184 parts22MIT - 2 layers32.2 × 59.4 mm

- 2 layers26.6 × 14.9 mm

- 4 layers76 × 100 mm

- 4 layers65 × 30 mm

Elec gripette hub and dyn
pollen-robotics/elec_grabette
Set of electronic boards for Grabette/Gripette
122 parts11Apache-2.0
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Is there a KiCad symbol and footprint for the B5819WS?
Yes. The symbol is Device:D_Schottky and the footprint Diode_SMD:D_SOD-323, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the B5819WS?
SOD-323, with 2 pins. Its footprint is drawn on this page.
Where is the B5819WS datasheet?
MDD publishes it: the Datasheet link on this page opens it.
Where can I order the B5819WS?
JLCPCB lists it as part C64886, with 565,714 in stock; the sellers' links on this page open their listings.
What can replace the B5819WS?
Parts like it in the library: the B5819WS by hongjiacheng, the B16WS by hongjiacheng, the B5819WS SL by SEP and the B1040WS by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the B5819WS?
62 boards in 49 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
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