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PSD03-LF-T7
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ProTek Devices 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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PSD03-LF-T7
ProTek Devices · ESD And Surge Protection (TVS/ESD) · SOD-323
PSD03-LF-T7 from ProTek Devices, 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 | K | passive | TVS diode terminal 1, the band-marked pin (cathode by convention): for PSD03 VWM is 3.3 V, V(BR) is at least 4.0 V at 1 mA, VC is at most 6.5 V at IP = 1 A, and peak pulse power is 500 W (8/20 µs). |
| 2 | A | passive | TVS diode terminal 2 (anode by convention), normally connected to ground or the return line of the protected I/O or power line; for PSD03 leakage is at most 125 µA at VWM and typical capacitance is 500 pF. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ProTek Devices |
| 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 |
|---|---|---|---|---|---|---|---|
| Minimum breakdown voltage | V(BR) | 4 | V | @ 1mA | 2 | ||
| Maximum clamping voltage | VC | 6.5 | V | @ IP = 1A (Fig. 2) | 2 | ||
| Maximum leakage current | ID | 125 | µA | @ VWM | 2 | ||
| Rated stand-off voltage | VWM | 3.3 | V | 2 | |||
| Capacitance | C | 500 | pF | @ 0V, 1MHz | 2 | ||
| Peak pulse power (unidirectional) | PPP | 500 | Watts | tp = 8/20µs, 25°C | 2 | ||
| Operating temperature | TL | -55 | 150 | °C | 2 | ||
| Storage temperature | TSTG | -55 | 150 | °C | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | • Lead-Free Pure-Tin Plating (Annealed) • Solder Reflow Temperature: | 1 |
CAD (KiCad official)
- Symbol:
PSD03-LF-T7 - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
psd03-lf-t7-etched.step/psd03-lf-t7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);psd03-lf-t7.step/psd03-lf-t7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ProTek Devices datasheet (10 pp, sha256
bf219560b9ae3487, 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).
# PSD03-LF-T7
**ProTek Devices** · ESD And Surge Protection (TVS/ESD) · SOD-323
PSD03-LF-T7 from ProTek Devices, 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 | K | passive | TVS diode terminal 1, the band-marked pin (cathode by convention): for PSD03 VWM is 3.3 V, V(BR) is at least 4.0 V at 1 mA, VC is at most 6.5 V at IP = 1 A, and peak pulse power is 500 W (8/20 µs). |
| 2 | A | passive | TVS diode terminal 2 (anode by convention), normally connected to ground or the return line of the protected I/O or power line; for PSD03 leakage is at most 125 µA at VWM and typical capacitance is 500 pF. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ProTek Devices |
| 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 |
|---|---|---|---|---|---|---|---|
| Minimum breakdown voltage | V(BR) | 4 | | | V | @ 1mA | 2 |
| Maximum clamping voltage | VC | | | 6.5 | V | @ IP = 1A (Fig. 2) | 2 |
| Maximum leakage current | ID | | | 125 | µA | @ VWM | 2 |
| Rated stand-off voltage | VWM | | 3.3 | | V | | 2 |
| Capacitance | C | | 500 | | pF | @ 0V, 1MHz | 2 |
| Peak pulse power (unidirectional) | PPP | | | 500 | Watts | tp = 8/20µs, 25°C | 2 |
| Operating temperature | TL | -55 | | 150 | °C | | 2 |
| Storage temperature | TSTG | -55 | | 150 | °C | | 2 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | • Lead-Free Pure-Tin Plating (Annealed) • Solder Reflow Temperature: | 1 |
## CAD (KiCad official)
- Symbol: `PSD03-LF-T7`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `psd03-lf-t7-etched.step` / `psd03-lf-t7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `psd03-lf-t7.step` / `psd03-lf-t7.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [ProTek Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586185917883564032) (10 pp, sha256 `bf219560b9ae3487`, 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/psd03-lf-t7-datasheet.pdf)