# BZX584B3V3

**HUXN** · Zener Diodes · SOD-523

BZX584B3V3 from HUXN, in a SOD-523. 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 of the zener diode; for BZX584B3V3 the zener voltage is 3.23-3.37 V at IZT=5 mA. |
| 2 | Anode | passive | Anode of the zener diode; forward voltage is 0.9 V at IF=10 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HUXN |
| Package | SOD-523 |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZ | 3.23 | 3.3 | 3.37 | V | IZT=5 mA, pulsed 300μs, Ta=25℃ | 2 |
| Maximum Zener Impedance | ZZT |  |  | 95 | Ω | IZT=5 mA, f=1kHz | 2 |
| Maximum Zener Impedance (knee) | ZZK |  |  | 600 | Ω | IZK=1.0 mA, f=1kHz | 2 |
| Maximum Reverse Current | IR |  |  | 5 | μA | VR=1.0 V | 2 |
| Temperature Coefficient of Zener Voltage | θVZ | -3.5 |  | 0 | mV/°C | IZT=5 mA | 2 |
| Forward Voltage | VF |  |  | 0.9 | V | IF=10mA | 1 |
| Power Dissipation | PD |  |  | 150 | mW | Ta=25℃, Note 1 | 1 |
| Thermal Resistance from Junction to Ambient | RθJA |  |  | 833 | ℃/W |  | 1 |
| Junction Temperature | TJ |  |  | 150 | ℃ |  | 1 |
| Storage Temperature | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Test Current | IZT |  | 5 |  | mA |  | 2 |

## CAD (KiCad official)

- Symbol: `BZX584B3V3`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `bzx584b3v3-etched.step` / `bzx584b3v3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx584b3v3.step` / `bzx584b3v3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HUXN datasheet](docs/bzx584b3v3-datasheet.pdf) (4 pp, sha256 `a5e7158b56353e08`, 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/bzx584b3v3-datasheet.pdf)