# BZT52-B3V9S-AU-R1-00001

**PANJIT International** · Zener Diodes · SOD-323

BZT52-B3V9S-AU-R1-00001 from PANJIT International, 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 | Cathode | passive | Cathode terminal of the zener diode, shown as pin 1 on the SOD-323 outline. |
| 2 | Anode | passive | Anode terminal of the zener diode, shown as pin 2 on the SOD-323 outline. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| Package | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Zener Voltage | Z | 3.82 | 3.9 | 3.98 | V | @ IZT | 2 |
| Max. Zener Impedance | ZZT |  |  | 95 | Ω | @ IZT = 5.0 mA | 2 |
| Max. Zener Impedance | ZZK |  |  | 600 | Ω | @ IZK = 1.00 mA | 2 |
| Max Reverse Leakage Current | IR |  |  | 10 | μA | @ VR = 1.0 V | 2 |
| Power Dissipation | PD |  |  | 200 | mW | @TA=25oC (Note A) | 1 |
| Operating Junction and Storage Temperature Range | TJ | -55 |  | 150 | OC |  | 1 |
| Typical Thermal Resistance | RθJA |  | 650 |  | OC/W | (Note B) | 1 |

## CAD (KiCad official)

- Symbol: `BZT52-B3V9S-AU-R1-00001`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `bzt52-b3v9s-au-r1-00001-etched.step` / `bzt52-b3v9s-au-r1-00001-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52-b3v9s-au-r1-00001.step` / `bzt52-b3v9s-au-r1-00001.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PANJIT International datasheet](docs/bzt52-b3v9s-au-r1-00001-datasheet.pdf) (6 pp, sha256 `e17e44044b802171`, retrieved 2026-10-26, 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/bzt52-b3v9s-au-r1-00001-datasheet.pdf)