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PESD3V3L1UA
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UMW ESD And Surge Protection (TVS/ESD), SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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PESD3V3L1UA
UMW · ESD And Surge Protection (TVS/ESD) · SOD-323
PESD3V3L1UA from UMW, 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 | Pin1 | passive | The datasheet's SOD-323 pinning section labels this terminal as Pin1 of the unidirectional TVS but does not state whether it is the anode or the cathode. |
| 2 | Pin2 | passive | The datasheet's SOD-323 pinning section labels this terminal as Pin2 of the unidirectional TVS but does not state whether it is the anode or the cathode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOD-323 |
| Category | Circuit Protection |
| 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 Pulse Power | PPP | 300 | Watts | tp =8/20μs | 2 | ||
| Peak Pulse Current | IPP | 20 | A | tp =8/20μs (note1) | 2 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | 30 | kV | 2 | |||
| ESD per IEC 61000-4-2 (Contact) | VESD | 30 | kV | 2 | |||
| Lead Soldering Temperature | TL | 260 | °C | 10 seconds | 2 | ||
| Junction Temperature | TJ | -55 | 150 | °C | 2 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
PESD3V3L1UA - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
pesd3v3l1ua-etched.step/pesd3v3l1ua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pesd3v3l1ua.step/pesd3v3l1ua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (7 pp, sha256
a4726a32463ed406, retrieved 2026-11-04, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).
# PESD3V3L1UA
**UMW** · ESD And Surge Protection (TVS/ESD) · SOD-323
PESD3V3L1UA from UMW, 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 | Pin1 | passive | The datasheet's SOD-323 pinning section labels this terminal as Pin1 of the unidirectional TVS but does not state whether it is the anode or the cathode. |
| 2 | Pin2 | passive | The datasheet's SOD-323 pinning section labels this terminal as Pin2 of the unidirectional TVS but does not state whether it is the anode or the cathode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOD-323 |
| Category | Circuit Protection |
| 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 Pulse Power | PPP | | | 300 | Watts | tp =8/20μs | 2 |
| Peak Pulse Current | IPP | | | 20 | A | tp =8/20μs (note1) | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD | | | 30 | kV | | 2 |
| ESD per IEC 61000-4-2 (Contact) | VESD | | | 30 | kV | | 2 |
| Lead Soldering Temperature | TL | | | 260 | °C | 10 seconds | 2 |
| Junction Temperature | TJ | -55 | | 150 | °C | | 2 |
| Storage Temperature | TSTG | -55 | | 150 | °C | | 2 |
## CAD (KiCad official)
- Symbol: `PESD3V3L1UA`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `pesd3v3l1ua-etched.step` / `pesd3v3l1ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesd3v3l1ua.step` / `pesd3v3l1ua.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [UMW datasheet](docs/pesd3v3l1ua-datasheet.pdf) (7 pp, sha256 `a4726a32463ed406`, retrieved 2026-11-04, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/pesd3v3l1ua-datasheet.pdf)