# BZB84-C6V2

**Nexperia** · Zener Diodes · SOT-23

BZB84-C6V2 from Nexperia, in a SOT-23. 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 (diode 1) | passive | Cathode of Zener diode 1, which shares a common anode with diode 2 on pin 3; the datasheet gives no separate pin-level voltage or current limit, only the device ratings (Ptot 300 mW at Tamb ≤ 25 °C) and that pins 1 and 2 are the soldering points for Rth(j-sp). |
| 2 | cathode (diode 2) | passive | Cathode of Zener diode 2, which shares a common anode with diode 1 on pin 3 (dual common anode configuration); the datasheet gives no separate pin-level limit, and pin 2 is one of the two soldering points for Rth(j-sp). |
| 3 | common anode | passive | Common anode shared by both Zener diodes, giving the dual common anode configuration of the BZB84 series; the datasheet gives no separate pin-level limit for this pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Working voltage (nominal 6.2 V, C tolerance series) | VZ | 5.8 |  | 6.6 | V | IZ = 5 mA; Tj = 25 °C unless otherwise specified | 7 |
| Differential resistance | rdif |  |  | 150 | Ω | IZ = 5 mA | 7 |
| Differential resistance | rdif |  |  | 10 | Ω | IZ = 1 mA | 7 |
| Reverse current | IR |  |  | 3 | µA | VR = 4 V | 7 |
| Temperature coefficient | SZ | 0.4 |  | 3.7 | mV/K | IZ = 5 mA; Tj = 25 °C to 150 °C per Tj note in table header | 7 |
| Diode capacitance | Cd |  |  | 200 | pF | f = 1 MHz; VR = 0 V | 7 |
| Non-repetitive peak reverse current | IZSM |  |  | 6 | A | tp = 100 µs; square wave; Tj = 25 °C prior to surge | 7 |
| Forward voltage (per diode) | VF |  |  | 0.9 | V | IF = 10 mA; tp ≤ 300 µs; δ ≤ 0.02 | 4 |
| Forward current (per diode) | IF |  |  | 200 | mA |  | 3 |
| Non-repetitive peak reverse power dissipation (per diode) | PZSM |  |  | 40 | W | tp = 100 µs; square wave; Tj = 25 °C prior to surge | 3 |
| Total power dissipation (per device) | Ptot |  |  | 300 | mW | Tamb ≤ 25 °C; device mounted on FR4 PCB, standard footprint | 4 |
| Junction temperature | Tj |  |  | 150 | °C |  | 4 |
| Ambient temperature | Tamb | -55 |  | 150 | °C |  | 4 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 4 |
| Thermal resistance from junction to ambient | Rth(j-a) |  |  | 417 | K/W | in free air; per device, single diode loaded; FR4 PCB, standard footprint | 4 |
| Thermal resistance from junction to solder point | Rth(j-sp) |  |  | 100 | K/W | soldering points at pins 1 and 2 | 4 |
| Zener voltage tolerance (C series) |  | -5 |  | 5 | % | Tolerance series C = ±5% (suffix C in type number) | 1 |

## CAD (KiCad official)

- Symbol: `BZB84-C6V2`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bzb84-c6v2-etched.step` / `bzb84-c6v2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzb84-c6v2.step` / `bzb84-c6v2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915306705637376) (14 pp, sha256 `d909f500a84da6be`, retrieved 2026-10-20, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bzb84-c6v2-datasheet.pdf)