component
SZBZX84C12ET1G
Public Made by Adomby adom
onsemi Zener Diodes, SOT-23-3. 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
markdownSZBZX84C12ET1G
onsemi · Zener Diodes · SOT-23-3
SZBZX84C12ET1G from onsemi, in a SOT-23-3. 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 datasheet gives no pin-specific electrical limits, only device ratings of 250 mW total power on an FR-5 board and junction/storage temperature of −65 °C to +150 °C. |
| 2 | NO CONNECTION | unconnected | Pin 2 is not connected internally and is not used in the Zener regulator circuit. |
| 3 | CATHODE | passive | Cathode terminal of the Zener diode, indicated by the polarity band on the package; the datasheet gives no pin-specific electrical limits for this terminal. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23-3 |
| 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 VZ1 (min/nom/max) | VZ1 | 11.4 | 12 | 12.7 | V | @ IZT1 = 5 mA (Note 4) | 3 |
| Maximum Zener Impedance ZZT1 | ZZT1 | 25 | Ω | @ IZT1 = 5 mA | 3 | ||
| Reverse Zener Voltage VZ2 (min/max) | VZ2 | 11.2 | 12.7 | V | @ IZT2 = 1 mA (Note 4) | 3 | |
| Maximum Zener Impedance ZZT2 | ZZT2 | 150 | Ω | @ IZT2 = 1 mA | 3 | ||
| Reverse Zener Voltage VZ3 (min/max) | VZ3 | 11.4 | 12.9 | V | @ IZT3 = 20 mA (Note 4) | 3 | |
| Maximum Zener Impedance ZZT3 | ZZT3 | 10 | Ω | @ IZT3 = 20 mA | 3 | ||
| Reverse Leakage Current IR | IR | 0.1 | µA | @ VR = 8.0 V | 3 | ||
| Maximum Temperature Coefficient of VZ | VZ | 6 | 10 | mV/k | @ IZT1 = 5 mA | 3 | |
| Maximum Capacitance | C | 130 | pF | @ VR = 0 V, f = 1 MHz | 3 | ||
| Forward Voltage | VF | 0.9 | V | @ IF = 10 mA | 2 | ||
| Peak Power Dissipation | Ppk | 225 | W | @ 20 s (Note 1), TL ≤ 25°C | 1 | ||
| Total Power Dissipation on FR-5 Board | PD | 250 | mW | @ TA = 25°C (Note 2) | 1 | ||
| Derating above 25°C, FR-5 Board | PD | 2 | mW/°C | Derated above 25°C, FR-5 board (Note 2) | 1 | ||
| Thermal Resistance, Junction-to-Ambient, FR-5 Board | RθJA | 500 | °C/W | FR-5 board (Note 2) | 1 | ||
| Total Power Dissipation on Alumina Substrate | PD | 300 | mW | @ TA = 25°C (Note 3) | 1 | ||
| Derating above 25°C, Alumina Substrate | PD | 2.4 | mW/°C | Derated above 25°C, alumina substrate (Note 3) | 1 | ||
| Thermal Resistance, Junction-to-Ambient, Alumina Substrate | RθJA | 417 | °C/W | alumina substrate (Note 3) | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
SZBZX84C12ET1G - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
szbzx84c12et1g-etched.step/szbzx84c12et1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);szbzx84c12et1g.step/szbzx84c12et1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (7 pp, sha256
f2b6d88b8e3f13ae, retrieved 2026-10-17, 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).