component
KB5819W
Public Made by Adomby adom
KUU Schottky Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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KB5819W
KUU · Schottky Diodes · SOD-123
KB5819W from KUU, 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, the banded end marked '-' in the package drawing; KB5819W is rated 40 V VRRM/VR, 1 A average rectified output current. |
| 2 | A | passive | Anode, marked '+' in the package drawing; forward voltage max 0.6 V at IF=1A and 0.9 V at IF=3A for KB5819W. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KUU |
| 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 breakdown voltage | V(BR) | 40 | V | IR= 1mA | 1 | ||
| Reverse voltage leakage current | IR | 1 | mA | VR=40V KB5819W | 1 | ||
| Forward voltage | VF | 0.6 | V | KB5819W IF=1A | 1 | ||
| Forward voltage | VF | 0.9 | V | KB5819W IF=3A | 1 | ||
| Non-Repetitive Peak Reverse Voltage | VRM | 40 | V | 1 | |||
| Peak Repetitive Reverse Voltage | VRRM | 40 | V | 1 | |||
| Working Peak Reverse Voltage | VRWM | 40 | V | 1 | |||
| DC Blocking Voltage | VR | 40 | V | 1 | |||
| RMS Reverse Voltage | VR(RMS) | 28 | V | 1 | |||
| Average Rectified Output Current | IO | 1 | A | 1 | |||
| Peak Forward Surge Current | IFSM | 25 | A | t=8.3ms | 1 | ||
| Repetitive Peak Forward Current | IFRM | 1.5 | A | 1 | |||
| Power Dissipation | Pd | 500 | mW | 1 | |||
| Thermal Resistance Junction to Ambient | RθJA | 250 | ℃/W | 1 | |||
| Storage Temperature | TSTG | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
KB5819W - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
kb5819w-etched.step/kb5819w-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kb5819w.step/kb5819w.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KUU datasheet (3 pp, sha256
e802623f557507f4, 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).
# KB5819W
**KUU** · Schottky Diodes · SOD-123
KB5819W from KUU, 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, the banded end marked '-' in the package drawing; KB5819W is rated 40 V VRRM/VR, 1 A average rectified output current. |
| 2 | A | passive | Anode, marked '+' in the package drawing; forward voltage max 0.6 V at IF=1A and 0.9 V at IF=3A for KB5819W. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KUU |
| 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 breakdown voltage | V(BR) | 40 | | | V | IR= 1mA | 1 |
| Reverse voltage leakage current | IR | | | 1 | mA | VR=40V KB5819W | 1 |
| Forward voltage | VF | | | 0.6 | V | KB5819W IF=1A | 1 |
| Forward voltage | VF | | | 0.9 | V | KB5819W IF=3A | 1 |
| Non-Repetitive Peak Reverse Voltage | VRM | | | 40 | V | | 1 |
| Peak Repetitive Reverse Voltage | VRRM | | | 40 | V | | 1 |
| Working Peak Reverse Voltage | VRWM | | | 40 | V | | 1 |
| DC Blocking Voltage | VR | | | 40 | V | | 1 |
| RMS Reverse Voltage | VR(RMS) | | | 28 | V | | 1 |
| Average Rectified Output Current | IO | | | 1 | A | | 1 |
| Peak Forward Surge Current | IFSM | | | 25 | A | t=8.3ms | 1 |
| Repetitive Peak Forward Current | IFRM | | | 1.5 | A | | 1 |
| Power Dissipation | Pd | | | 500 | mW | | 1 |
| Thermal Resistance Junction to Ambient | RθJA | | | 250 | ℃/W | | 1 |
| Storage Temperature | TSTG | -55 | | 150 | ℃ | | 1 |
## CAD (KiCad official)
- Symbol: `KB5819W`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `kb5819w-etched.step` / `kb5819w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `kb5819w.step` / `kb5819w.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [KUU datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588950577060958208) (3 pp, sha256 `e802623f557507f4`, 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/kb5819w-datasheet.pdf)