component
BAV21W-T3
Public Made by Adomby adom
SY(顺烨) Switching Diodes, SOD-123FL. 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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BAV21W-T3
SY(顺烨) · Switching Diodes · SOD-123FL
BAV21W-T3 from SY(顺烨), in a SOD-123FL. 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 | SY(顺烨) |
| Package | SOD-123FL |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 250 | V | BAV21W column | 1 | ||
| Maximum RMS voltage | VRMS | 200 | V | BAV21W column | 1 | ||
| Continuous Forward Current | IF | 250 | mA | 1 | |||
| Repetitive Peak Forward Current | IFRM | 625 | mA | 1 | |||
| Non-repetitive Peak Forward Surge Current | IFSM | 1 | A | at 1s | 1 | ||
| Non-repetitive Peak Forward Surge Current | IFSM | 3 | A | at 1ms | 1 | ||
| Non-repetitive Peak Forward Surge Current | IFSM | 9 | A | at 1us | 1 | ||
| Total Power Dissipation | Ptot | 500 | mW | 1 | |||
| Operating and Storage Temperature Range | Tj, Tstg | -55 | 150 | °C | 1 | ||
| Maximum Forward Voltage | VF | 1 | V | at 100 mA | 1 | ||
| Maximum Forward Voltage | VF | 1.25 | V | at 200 mA | 1 | ||
| Maximum DC Reverse Current | IR | 0.1 | μA | Ta = 25 °C at rated DC blocking voltage | 1 | ||
| Maximum DC Reverse Current | IR | 100 | μA | Ta = 150 °C at rated DC blocking voltage | 1 | ||
| Maximum Reverse Recovery Time | trr | 50 | ns | IF = 0.5 A, IR = 1 A, Irr = 0.25 A | 1 |
CAD (KiCad official)
- Symbol:
BAV21W-T3 - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
bav21w-t3-etched.step/bav21w-t3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bav21w-t3.step/bav21w-t3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SY(顺烨) datasheet (2 pp, sha256
341be8f73f0bc13f, retrieved 2026-10-18, 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).
# BAV21W-T3
**SY(顺烨)** · Switching Diodes · SOD-123FL
BAV21W-T3 from SY(顺烨), in a SOD-123FL. 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 | SY(顺烨) |
| Package | SOD-123FL |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | | | 250 | V | BAV21W column | 1 |
| Maximum RMS voltage | VRMS | | | 200 | V | BAV21W column | 1 |
| Continuous Forward Current | IF | | | 250 | mA | | 1 |
| Repetitive Peak Forward Current | IFRM | | | 625 | mA | | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM | | | 1 | A | at 1s | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM | | | 3 | A | at 1ms | 1 |
| Non-repetitive Peak Forward Surge Current | IFSM | | | 9 | A | at 1us | 1 |
| Total Power Dissipation | Ptot | | | 500 | mW | | 1 |
| Operating and Storage Temperature Range | Tj, Tstg | -55 | | 150 | °C | | 1 |
| Maximum Forward Voltage | VF | | | 1 | V | at 100 mA | 1 |
| Maximum Forward Voltage | VF | | | 1.25 | V | at 200 mA | 1 |
| Maximum DC Reverse Current | IR | | | 0.1 | μA | Ta = 25 °C at rated DC blocking voltage | 1 |
| Maximum DC Reverse Current | IR | | | 100 | μA | Ta = 150 °C at rated DC blocking voltage | 1 |
| Maximum Reverse Recovery Time | trr | | | 50 | ns | IF = 0.5 A, IR = 1 A, Irr = 0.25 A | 1 |
## CAD (KiCad official)
- Symbol: `BAV21W-T3`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `bav21w-t3-etched.step` / `bav21w-t3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bav21w-t3.step` / `bav21w-t3.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [SY(顺烨) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906494819127296) (2 pp, sha256 `341be8f73f0bc13f`, retrieved 2026-10-18, 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/bav21w-t3-datasheet.pdf)