# BZT52-B3S_R1_00001

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

BZT52-B3S_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 package drawing; the datasheet's absolute ratings apply to the device, with 200 mW power dissipation at TA=25°C and a junction and storage range of -55 to +150°C. |
| 2 | Anode | passive | Anode terminal of the Zener diode, shown as pin 2 on the SOD-323 package drawing; the datasheet's absolute ratings apply to the device, with 200 mW power dissipation at TA=25°C and a junction and storage range of -55 to +150°C. |

## 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 (BZT52-B3S, Nom 3.0 V) | VZ | 2.94 | 3 | 3.06 | V |  | 2 |
| Max Zener Impedance (BZT52-B3S) | ZZT |  |  | 95 | Ω | IZT = 5.0 mA | 2 |
| Max Zener Knee Impedance (BZT52-B3S) | ZZK |  |  | 600 | Ω | IZK = 1.00 mA | 2 |
| Max Reverse Leakage Current (BZT52-B3S) | IR |  |  | 50 | µA | VR = 1.0 V | 2 |
| Power Dissipation | PD |  |  | 200 | mW | TA = 25°C, Note A: mounted on FR-4 PCB, single-sided copper, 100 cm² copper pad area | 1 |
| Typical Thermal Resistance, junction to ambient | RθJA |  |  | 650 | °C/W | Note B: mounted on FR-4 PCB, single-sided copper, mini pad | 1 |
| Operating Junction and Storage Temperature Range | TJ | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `BZT52-B3S_R1_00001`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `bzt52-b3s-r1-00001-etched.step` / `bzt52-b3s-r1-00001-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52-b3s-r1-00001.step` / `bzt52-b3s-r1-00001.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PANJIT International datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902670219792384) (6 pp, sha256 `953b9bc7b6a069ae`, retrieved 2026-11-03, 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-b3s-r1-00001-datasheet.pdf)