component
B0540WS SF
Public Made by Adomby adom
Changjing Schottky Diodes, SOD-323. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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B0540WS SF
Changjing · Schottky Diodes · SOD-323
B0540WS SF from Changjing, in a SOD-323. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOD-323 |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Peak repetitive reverse voltage / working peak reverse voltage / DC blocking voltage | VRRM/VRWM/VR | 40 | V | Ta=25℃ | 1 | ||
| RMS reverse voltage | VR(RMS) | 28 | V | Ta=25℃ | 1 | ||
| Average rectified output current | Io | 0.5 | A | Ta=25℃ | 1 | ||
| Forward current surge peak | IFSM | 5.5 | A | Ta=25℃ | 1 | ||
| Power dissipation | PD | 200 | mW | Ta=25℃ | 1 | ||
| Thermal resistance junction to ambient | RθJA | 500 | ℃/W | Ta=25℃ | 1 | ||
| Junction temperature | Tj | 125 | ℃ | Ta=25℃ | 1 | ||
| Storage temperature | TSTG | -55 | 150 | ℃ | Ta=25℃ | 1 | |
| Voltage rate of change | dv/dt | 1000 | V/μs | Ta=25℃ | 1 | ||
| Minimum reverse breakdown voltage | V(BR) | 40 | V | IR=20μA | 1 | ||
| Forward voltage | VF2 | 0.51 | V | IF=0.5A | 1 | ||
| Forward voltage | VF3 | 0.62 | V | IF=1A | 1 | ||
| Reverse current | IR3 | 10 | μA | VR=20V | 1 | ||
| Reverse current | IR5 | 20 | μA | VR=40V | 1 | ||
| Capacitance between terminals | CT | 170 | pF | VR=0,f=1MHz | 1 |
CAD (KiCad official)
- Symbol:
B0540WS SF - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
b0540ws-sf-etched.step/b0540ws-sf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);b0540ws-sf.step/b0540ws-sf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (2 pp, sha256
4c29a54f831395be, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# B0540WS SF
**Changjing** · Schottky Diodes · SOD-323
B0540WS SF from Changjing, in a SOD-323. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOD-323 |
| Category | Diodes |
| Pins | 2 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Peak repetitive reverse voltage / working peak reverse voltage / DC blocking voltage | VRRM/VRWM/VR | | | 40 | V | Ta=25℃ | 1 |
| RMS reverse voltage | VR(RMS) | | | 28 | V | Ta=25℃ | 1 |
| Average rectified output current | Io | | | 0.5 | A | Ta=25℃ | 1 |
| Forward current surge peak | IFSM | | | 5.5 | A | Ta=25℃ | 1 |
| Power dissipation | PD | | | 200 | mW | Ta=25℃ | 1 |
| Thermal resistance junction to ambient | RθJA | | | 500 | ℃/W | Ta=25℃ | 1 |
| Junction temperature | Tj | | | 125 | ℃ | Ta=25℃ | 1 |
| Storage temperature | TSTG | -55 | | 150 | ℃ | Ta=25℃ | 1 |
| Voltage rate of change | dv/dt | | | 1000 | V/μs | Ta=25℃ | 1 |
| Minimum reverse breakdown voltage | V(BR) | 40 | | | V | IR=20μA | 1 |
| Forward voltage | VF2 | | | 0.51 | V | IF=0.5A | 1 |
| Forward voltage | VF3 | | | 0.62 | V | IF=1A | 1 |
| Reverse current | IR3 | | | 10 | μA | VR=20V | 1 |
| Reverse current | IR5 | | | 20 | μA | VR=40V | 1 |
| Capacitance between terminals | CT | | 170 | | pF | VR=0,f=1MHz | 1 |
## CAD (KiCad official)
- Symbol: `B0540WS SF`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `b0540ws-sf-etched.step` / `b0540ws-sf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `b0540ws-sf.step` / `b0540ws-sf.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586172270469926912) (2 pp, sha256 `4c29a54f831395be`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/b0540ws-sf-datasheet.pdf)