component
BZX84C33LT1G
Public Made by Adomby adom
onsemi Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownBZX84C33LT1G
onsemi · Zener Diodes · SOT-23
BZX84C33LT1G from onsemi, 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 | Anode | passive | Anode terminal of the Zener diode; the cathode is identified by the polarity band on the package. |
| 2 | No Connection | unconnected | No internal connection; this pin is not connected to the device. |
| 3 | Cathode | passive | Cathode terminal of the Zener diode, indicated by the polarity band on the package. |
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 |
|---|---|---|---|---|---|---|---|
| Zener voltage VZ1 (nominal 33 V) | VZ1 | 31 | 33 | 35 | V | @ IZT1 = 2 mA | 3 |
| Maximum Zener impedance ZZT1 | ZZT1 | 80 | Ω | @ IZT1 = 2 mA | 3 | ||
| Zener voltage VZ2 | VZ2 | 30.8 | 35 | V | @ IZT2 = 0.1 mA | 3 | |
| Maximum Zener impedance ZZT2 | ZZT2 | 325 | Ω | @ IZT4 = 0.5 mA | 3 | ||
| Zener voltage VZ3 | VZ3 | 31.1 | 35.4 | V | @ IZT3 = 10 mA | 3 | |
| Maximum Zener impedance ZZT3 | ZZT3 | 55 | Ω | @ IZT3 = 10 mA | 3 | ||
| Maximum reverse leakage current | IR | 0.05 | µA | @ VR = 23.1 V | 3 | ||
| Maximum temperature coefficient of VZ | VZ | 27.4 | 33.4 | mV/k | @ IZT1 = 2 mA | 3 | |
| Maximum 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 | PD | 225 | mW | @ TA = 25°C, FR-5 board (Note 1) | 2 | ||
| Total power dissipation on alumina substrate | PD | 300 | mW | @ TA = 25°C, alumina substrate (Note 2) | 2 | ||
| Thermal resistance, junction-to-ambient, FR-5 board | RJA | 556 | °C/W | FR-5 board (Note 1) | 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 (KiCad official)
- Symbol:
BZX84C33LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bzx84c33lt1g-etched.step/bzx84c33lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84c33lt1g.step/bzx84c33lt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (7 pp, sha256
efdb195d4f63280e, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).