# BZX84C36LT1G

**onsemi** · Zener Diodes · SOT-23

BZX84C36LT1G from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | ANODE | passive | Zener diode anode terminal (Style 8); the datasheet gives no pin-specific voltage or current limits, only the overall device ratings. |
| 2 | NO CONNECTION | unconnected | Pin 2 is not connected internally (Style 8 and the electrical characteristics pinout note), so it has no electrical function. |
| 3 | CATHODE | passive | Zener diode cathode terminal (Style 8); the cathode is identified by the polarity band on the package, and the datasheet gives no pin-specific limits. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage (nominal 36 V) @ IZT1 | VZ1 | 34 | 36 | 38 | V | @ IZT1 = 5 mA (Note 3) | 3 |
| Reverse Zener Voltage @ IZT2 | VZ2 | 33.8 |  | 38 | V | @ IZT2 = 1 mA (Note 3) | 3 |
| Reverse Zener Voltage @ IZT3 | VZ3 | 34.1 |  | 38.4 | V | @ IZT3 = 20 mA (Note 3) | 3 |
| Maximum Zener Impedance @ IZT1 | ZZT1 |  |  | 90 | Ω | @ IZT1 = 5 mA (Note 3) | 3 |
| Maximum Zener Impedance @ IZT2 | ZZT2 |  |  | 350 | Ω | @ IZT2 = 1 mA (Note 3) | 3 |
| Maximum Zener Impedance @ IZT3 | ZZT3 |  |  | 60 | Ω | @ IZT3 = 20 mA (Note 3) | 3 |
| Maximum Reverse Leakage Current | IR |  |  | 0.05 | µA | @ VR = 25.2 V | 3 |
| Maximum Temperature Coefficient of VZ (min) | VZ | 30.4 |  |  | mV/k | @ IZT1 = 5 mA | 3 |
| Maximum Temperature Coefficient of VZ (max) | VZ |  |  | 37.4 | mV/k | @ IZT1 = 5 mA | 3 |
| Max Capacitance | C |  |  | 70 | pF | @ VR = 0, f = 1 MHz | 3 |
| Forward Voltage | VF |  |  | 0.9 | V | @ IF = 10 mA | 2 |
| Total Power Dissipation on FR-5 Board @ TA = 25°C | PD |  |  | 250 | mW | FR-5 board, @ TA = 25°C (Note 1) | 2 |
| Thermal Resistance, Junction-to-Ambient (FR-5 Board) | RJA |  |  | 500 | °C/W | FR-5 board (Note 1) | 2 |
| Total Power Dissipation on Alumina Substrate @ TA = 25°C | PD |  |  | 300 | mW | Alumina substrate, @ TA = 25°C (Note 2) | 2 |
| Thermal Resistance, Junction-to-Ambient (Alumina Substrate) | RJA |  |  | 417 | °C/W | Alumina substrate (Note 2) | 2 |
| Junction and Storage Temperature Range | TJ, Tstg | -65 |  | 150 | °C |  | 2 |

## CAD (land: KiCad; 3D: generated from the datasheet)

- Symbol: `BZX84C36LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23, generated on the KiCad land (body 1.3 x 2.9 mm, terminals on the pads, 1.0 mm tall, datasheet A, nominal). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files: `bzx84c36lt1g-etched.step` / `bzx84c36lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx84c36lt1g.step` / `bzx84c36lt1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/bzx84c36lt1-d.pdf) (8 pp, sha256 `b0f156e963b31101`, retrieved 2026-11-13, tier: manufacturer)
- **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:** land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

[Datasheet PDF](docs/bzx84c36lt1g-datasheet.pdf)