component
BZX84C68LT1G
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
markdownBZX84C68LT1G
onsemi · Zener Diodes · SOT-23-3
BZX84C68LT1G 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 cathode is identified by the polarity band on the package. |
| 2 | NC | unconnected | No internal connection; the pin is not connected to the Zener diode. |
| 3 | Cathode | passive | Cathode terminal of the Zener diode, marked by the polarity band, which sets the regulated reverse breakdown voltage (VZ 64 V min to 72 V max for BZX84C68LT1G). |
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 | 64 | 68 | 72 | V | @ IZT1 = 5 mA | 3 |
| Zener Impedance | ZZT1 | 240 | Ω | @ IZT1 = 5 mA | 3 | ||
| Reverse Zener Voltage | VZ2 | 63.4 | 72 | V | @ IZT2 = 1 mA | 3 | |
| Zener Impedance | ZZT2 | 475 | Ω | @ IZT2 = 1 mA | 3 | ||
| Reverse Zener Voltage | VZ3 | 64.2 | 73.2 | V | @ IZT3 = 20 mA | 3 | |
| Zener Impedance | ZZT3 | 130 | Ω | @ IZT3 = 20 mA | 3 | ||
| Reverse Leakage Current | IR | 0.05 | µA | @ VR = 47.6 V | 3 | ||
| Max Capacitance | C | 35 | 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 | 250 | mW | @ TA = 25°C (Note 1, FR-5 board) | 2 | ||
| Derating above 25°C (FR-5 board) | PD | 2 | mW/°C | Derated above 25°C (Note 1) | 2 | ||
| Thermal Resistance, Junction-to-Ambient (FR-5 board) | RθJA | 500 | °C/W | FR-5 board (Note 1) | 2 | ||
| Total Power Dissipation on Alumina Substrate | PD | 300 | mW | @ TA = 25°C (Note 2, alumina substrate) | 2 | ||
| Derating above 25°C (alumina substrate) | PD | 2.4 | mW/°C | Derated above 25°C (Note 2) | 2 | ||
| Thermal Resistance, Junction-to-Ambient (alumina substrate) | RθJA | 417 | °C/W | Alumina substrate (Note 2) | 2 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
BZX84C68LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
bzx84c68lt1g-etched.step/bzx84c68lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84c68lt1g.step/bzx84c68lt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (7 pp, sha256
5a1a409db1310273, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).