# PT0321NA

**PTTC(Polytronics Tech)** · ESD Protection Devices · DFN1006-2

PT0321NA from PTTC(Polytronics Tech), in a DFN1006-2. 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PTTC(Polytronics Tech) |
| Package | DFN1006-2 |
| 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 |
|---|---|---|---|---|---|---|---|
| IEC61000-4-2 ESD Voltage, Air Mode | VESD | -30 |  | 30 | kV | IEC61000-4-2, ten non-repetitive ESD pulses (Note 1) | 2 |
| IEC61000-4-2 ESD Voltage, Contact Mode | VESD | -30 |  | 30 | kV | IEC61000-4-2, ten non-repetitive ESD pulses (Note 1) | 2 |
| Peak Pulse Power | PPP |  |  | 500 | W | 8/20s non-repetitive current pulse, IEC61000-4-5 (Note 2) | 2 |
| Peak Pulse Current | IPP |  |  | 45 | A | 8/20s non-repetitive current pulse, IEC61000-4-5 (Note 2) | 2 |
| Maximum Lead Solder Temperature | TL |  |  | 260 | °C | 10 seconds duration | 2 |
| Junction Temperature | TJ | -55 |  | 125 | °C |  | 2 |
| Storage Temperature Range | Tstg | -55 |  | 125 | °C |  | 2 |
| Reverse Stand-off Voltage | VRWM |  | 3.3 |  | V |  | 3 |
| Reverse Breakdown Voltage | VBR |  | 4.7 |  | V | IT = 1mA | 3 |
| Reverse Leakage Current | IR |  | 0.1 |  | A | VRWM = 4.5V | 3 |
| Peak Pulse Current | IPP |  | 45 |  | A |  | 3 |
| Clamping Voltage | VC |  | 5.5 |  | V | IPP = 1A (Note 2) | 3 |
| Clamping Voltage | VC |  | 7.5 |  | V | IPP = 20A (Note 2) | 3 |
| Clamping Voltage | VC |  | 11 |  | V | IPP = 45A (Note 2) | 3 |
| Junction Capacitance | CJ |  | 70 |  | pF | VR = 0V, f = 1MHz | 3 |

## CAD (KiCad official)

- Symbol: `PT0321NA`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files: `pt0321na-etched.step` / `pt0321na-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pt0321na.step` / `pt0321na.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [PTTC(Polytronics Tech) datasheet](docs/pt0321na-datasheet.pdf) (5 pp, sha256 `1971bfb87bfdd0bc`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/pt0321na-datasheet.pdf)