component
SD103CW
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Changjing Schottky Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SD103CW
Changjing · Schottky Diodes · SOD-123
SD103CW from Changjing, in a SOD-123. 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 (marked with the bar on the package, shown as '-' in the drawing); SD103CW is rated 20 V VRRM/VRWM, 14 V RMS and 350 mA forward continuous current. |
| 2 | A | passive | Anode (shown as '+' in the drawing); forward voltage is 0.37 V max at IF=20 mA and 0.6 V max at IF=200 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOD-123 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse voltage | V(BR) | 20 | V | IR=100μA, SD103CW | 1 | ||
| Reverse current | IR | 5 | μA | VR=10V, SD103CW | 1 | ||
| Forward voltage | VF | 0.37 | V | IF=20mA | 1 | ||
| Forward voltage | VF | 0.6 | V | IF=200mA | 1 | ||
| Total capacitance | Ctot | 50 | pF | VR=0V, f=1MHz | 1 | ||
| Reverse recovery time | trr | 10 | ns | IF=IR=200mA, Irr=0.1×IR, RL=100Ω | 1 | ||
| Peak Repetitive Reverse Voltage | VRRM | 20 | V | SD103CW | 1 | ||
| Working Peak Reverse Voltage | VRWM | 20 | V | SD103CW | 1 | ||
| RMS Reverse Voltage | VR(RMS) | 14 | V | SD103CW | 1 | ||
| Forward Continuous Current | IFM | 350 | mA | 1 | |||
| Non-repetitive Peak Forward Surge Current | IFSM | 2 | A | t=8.3ms | 1 | ||
| Power Dissipation | PD | 400 | mW | 1 | |||
| Thermal Resistance from Junction to Ambient | RΘJA | 250 | ℃/W | 1 | |||
| Operating Junction Temperature Range | Tj | -40 | 125 | ℃ | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
SD103CW - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
sd103cw-etched.step/sd103cw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sd103cw.step/sd103cw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
f7eb493f74817f33, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# SD103CW
**Changjing** · Schottky Diodes · SOD-123
SD103CW from Changjing, in a SOD-123. 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 (marked with the bar on the package, shown as '-' in the drawing); SD103CW is rated 20 V VRRM/VRWM, 14 V RMS and 350 mA forward continuous current. |
| 2 | A | passive | Anode (shown as '+' in the drawing); forward voltage is 0.37 V max at IF=20 mA and 0.6 V max at IF=200 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOD-123 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse voltage | V(BR) | 20 | | | V | IR=100μA, SD103CW | 1 |
| Reverse current | IR | | | 5 | μA | VR=10V, SD103CW | 1 |
| Forward voltage | VF | | | 0.37 | V | IF=20mA | 1 |
| Forward voltage | VF | | | 0.6 | V | IF=200mA | 1 |
| Total capacitance | Ctot | | | 50 | pF | VR=0V, f=1MHz | 1 |
| Reverse recovery time | trr | | | 10 | ns | IF=IR=200mA, Irr=0.1×IR, RL=100Ω | 1 |
| Peak Repetitive Reverse Voltage | VRRM | | | 20 | V | SD103CW | 1 |
| Working Peak Reverse Voltage | VRWM | | | 20 | V | SD103CW | 1 |
| RMS Reverse Voltage | VR(RMS) | | | 14 | V | SD103CW | 1 |
| Forward Continuous Current | IFM | | | 350 | mA | | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM | | | 2 | A | t=8.3ms | 1 |
| Power Dissipation | PD | | | 400 | mW | | 1 |
| Thermal Resistance from Junction to Ambient | RΘJA | | | 250 | ℃/W | | 1 |
| Operating Junction Temperature Range | Tj | -40 | | 125 | ℃ | | 1 |
| Storage Temperature Range | Tstg | -55 | | 150 | ℃ | | 1 |
## CAD (KiCad official)
- Symbol: `SD103CW`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `sd103cw-etched.step` / `sd103cw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sd103cw.step` / `sd103cw.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/8590207837789466624) (4 pp, sha256 `f7eb493f74817f33`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/sd103cw-datasheet.pdf)