component
SM4001WS
Public Made by Adomby adom
YFW Diodes - General Purpose, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SM4001WS
YFW · Diodes - General Purpose · SOD-323
SM4001WS from YFW, 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 | Cathode | passive | Cathode terminal of the rectifier diode (pin 1 per the pinning table); reverse voltage rating 50 V to 1000 V depending on the SM4001WS-SM4007WS type. |
| 2 | Anode | passive | Anode terminal of the rectifier diode (pin 2 per the pinning table); average forward current 1 A with maximum forward voltage 1.1 V at 1 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| 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 | VRRM | 50 | V | SM4001WS, 25 °C | 1 | ||
| RMS reverse voltage | VRMS | 35 | V | SM4001WS, 25 °C | 1 | ||
| Working Peak Reverse Voltage (DC blocking) | VDC | 50 | V | SM4001WS, 25 °C | 1 | ||
| Maximum Average Forward Rectified Current | IF(AV) | 1 | A | 1 | |||
| Peak Forward Surge Current | IFSM | 15 | A | 8.3ms single half sine-wave superimposed on rated load | 1 | ||
| Maximum Instantaneous Forward Voltage | VF | 1.1 | V | IF = 1A | 1 | ||
| Maximum DC Reverse Current | IR | 5 | uA | Ta=25 °C, at rated DC blocking voltage | 1 | ||
| Maximum DC Reverse Current | IR | 50 | uA | Ta=125 °C, at rated DC blocking voltage | 1 | ||
| Operating and Storage Temperature Range | Tj, Tstg | -55 | 150 | °C | 1 | ||
| Typical Thermal Resistance | RθJA | 55 | °C/W | P.C.B. mounted with 0.2" X 0.2" (5 X 5 mm) copper pad areas | 1 | ||
| Typical reverse recovery time | Trr | 1.8 | uS | IF=0.5A, IR=1A, Irr=0.25A | 1 | ||
| Typical junction capacitance | Cj | 5 | pF | 1 MHz and applied reverse voltage of 4 V D.C | 1 |
CAD (KiCad official)
- Symbol:
SM4001WS - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
sm4001ws-etched.step/sm4001ws-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sm4001ws.step/sm4001ws.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (3 pp, sha256
6902661acd69d634, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(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).
# SM4001WS
**YFW** · Diodes - General Purpose · SOD-323
SM4001WS from YFW, 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 | Cathode | passive | Cathode terminal of the rectifier diode (pin 1 per the pinning table); reverse voltage rating 50 V to 1000 V depending on the SM4001WS-SM4007WS type. |
| 2 | Anode | passive | Anode terminal of the rectifier diode (pin 2 per the pinning table); average forward current 1 A with maximum forward voltage 1.1 V at 1 A. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| 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 | VRRM | | | 50 | V | SM4001WS, 25 °C | 1 |
| RMS reverse voltage | VRMS | | | 35 | V | SM4001WS, 25 °C | 1 |
| Working Peak Reverse Voltage (DC blocking) | VDC | | | 50 | V | SM4001WS, 25 °C | 1 |
| Maximum Average Forward Rectified Current | IF(AV) | | | 1 | A | | 1 |
| Peak Forward Surge Current | IFSM | | | 15 | A | 8.3ms single half sine-wave superimposed on rated load | 1 |
| Maximum Instantaneous Forward Voltage | VF | | | 1.1 | V | IF = 1A | 1 |
| Maximum DC Reverse Current | IR | | | 5 | uA | Ta=25 °C, at rated DC blocking voltage | 1 |
| Maximum DC Reverse Current | IR | | | 50 | uA | Ta=125 °C, at rated DC blocking voltage | 1 |
| Operating and Storage Temperature Range | Tj, Tstg | -55 | | 150 | °C | | 1 |
| Typical Thermal Resistance | RθJA | | 55 | | °C/W | P.C.B. mounted with 0.2" X 0.2" (5 X 5 mm) copper pad areas | 1 |
| Typical reverse recovery time | Trr | | 1.8 | | uS | IF=0.5A, IR=1A, Irr=0.25A | 1 |
| Typical junction capacitance | Cj | | 5 | | pF | 1 MHz and applied reverse voltage of 4 V D.C | 1 |
## CAD (KiCad official)
- Symbol: `SM4001WS`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `sm4001ws-etched.step` / `sm4001ws-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sm4001ws.step` / `sm4001ws.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [YFW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603393359155785728) (3 pp, sha256 `6902661acd69d634`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-5-5` (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/sm4001ws-datasheet.pdf)