# BZX84-B62

**Nexperia** · Zener Diodes · SOT-23(TO-236AB)

BZX84-B62 from Nexperia, in a SOT-23(TO-236AB). 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 | A | passive | Anode of the voltage regulator diode, shown as 'A' on the graphic symbol and labelled 'anode' in the pinning table. |
| 2 | n.c. | unconnected | Not connected; the datasheet lists this pin as having no internal connection. |
| 3 | K | passive | Cathode of the voltage regulator diode, shown as 'K' on the graphic symbol and labelled 'cathode' in the pinning table. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-23(TO-236AB) |
| 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 (VZ), BZX84-B62 (±2 %) | VZ | 60.8 |  | 63.2 | V | IZ = 2 mA; Tj = 25 °C | 7 |
| Temperature coefficient (SZ) | SZ | 58.8 |  | 71.6 | mV/K | IZ = 2 mA | 7 |
| Maximum differential resistance (rdif) | rdif |  |  | 450 | Ω | IZ = 0.5 mA | 7 |
| Maximum differential resistance (rdif) | rdif |  |  | 215 | Ω | IZ = 2 mA | 7 |
| Reverse current (IR) | IR |  |  | 0.05 | μA | VR = 43.4 V | 7 |
| Diode capacitance (Cd) | Cd |  |  | 35 | pF | f = 1 MHz; VR = 0 V | 7 |
| Non-repetitive peak reverse current (IZSM) | IZSM |  |  | 0.3 | A | tp = 100 μs; square wave; Tj = 25 °C | 7 |
| Forward voltage | VF |  |  | 0.9 | V | IF = 10 mA; tp ≤ 100 μs; δ ≤ 0.02 | 4 |
| Working voltage tolerance (BZX84-B series, ±2 %) |  | -2 |  | 2 | % |  | 1 |
| Non-repetitive peak reverse power dissipation | PZSM |  |  | 40 | W | tp = 100 μs; square wave; Tj = 25 °C prior to surge | 4 |
| Total power dissipation | Ptot |  |  | 250 | mW | Tamb ≤ 25 °C; FR4 PCB, standard footprint | 4 |
| Forward current | IF |  |  | 200 | mA |  | 4 |
| Junction temperature | Tj |  |  | 150 | °C |  | 4 |
| Ambient temperature | Tamb | -55 |  | 150 | °C |  | 4 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 4 |
| Thermal resistance, junction to ambient | Rth(j-a) |  |  | 500 | K/W | in free air; FR4 PCB, single-sided 70 µm copper | 4 |
| Thermal resistance, junction to solder point | Rth(j-sp) |  |  | 330 | K/W | Soldering point of cathode tab | 4 |
| Nominal working voltage | VZ |  | 62 |  | V |  | 7 |

## CAD (KiCad official)

- Symbol: `BZX84-B62`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23(TO-236AB) (KiCad packages3D, STEP)
- 3D model files: `bzx84-b62-etched.step` / `bzx84-b62-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx84-b62.step` / `bzx84-b62.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/8588916174926565376) (14 pp, sha256 `e6278027e055c1b0`, retrieved 2026-10-16, 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/bzx84-b62-datasheet.pdf)