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BZX84C3V0
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Changjing Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BZX84C3V0
Changjing · Zener Diodes · SOT-23
BZX84C3V0 from Changjing, 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 | A | passive | Anode of the zener diode; the schematic shows it connected to pin 3 through the diode, with VF 0.9 V at IF = 10 mA. |
| 2 | NC | unconnected | Not connected internally; the schematic shows pin 2 as an unconnected terminal. |
| 3 | K | passive | Cathode of the zener diode; for the BZX84C3V0 the zener voltage is 3.0 V nominal (2.8 V to 3.2 V) at IZT = 5 mA, with 300 mW maximum power dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 (min) | VZ | 2.8 | 3 | V | @ IZT = 5 mA | 2 | |
| Zener voltage (max) | VZ | 3 | 3.2 | V | @ IZT = 5 mA | 2 | |
| Maximum Zener impedance | ZZT | 95 | Ω | @ IZT = 5 mA | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 600 | Ω | @ IZK = 1.0 mA | 2 | ||
| Maximum reverse current | IR | 10 | μA | VR = 1.0 V | 2 | ||
| Temperature coefficient of Zener voltage (min) | θVZ | -3.5 | mV/°C | @ IZT = 5 mA | 2 | ||
| Temperature coefficient of Zener voltage (max) | θVZ | 0 | mV/°C | @ IZT = 5 mA | 2 | ||
| Forward voltage | VF | 0.9 | V | @ IF = 10mA (Note 2: pulsed, period 5 ms, pulse width 300 μs) | 1 | ||
| Power dissipation | Pd | 300 | mW | Note 1: valid provided device terminals are kept at ambient temperature | 1 | ||
| Operating junction and storage temperature range | TJ,Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal resistance, junction to ambient | RθJA | 417 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
BZX84C3V0 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bzx84c3v0-etched.step/bzx84c3v0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84c3v0.step/bzx84c3v0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (5 pp, sha256
68e6789497edcdb3, retrieved 2026-11-12, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# BZX84C3V0
**Changjing** · Zener Diodes · SOT-23
BZX84C3V0 from Changjing, 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 | A | passive | Anode of the zener diode; the schematic shows it connected to pin 3 through the diode, with VF 0.9 V at IF = 10 mA. |
| 2 | NC | unconnected | Not connected internally; the schematic shows pin 2 as an unconnected terminal. |
| 3 | K | passive | Cathode of the zener diode; for the BZX84C3V0 the zener voltage is 3.0 V nominal (2.8 V to 3.2 V) at IZT = 5 mA, with 300 mW maximum power dissipation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 (min) | VZ | 2.8 | 3 | | V | @ IZT = 5 mA | 2 |
| Zener voltage (max) | VZ | | 3 | 3.2 | V | @ IZT = 5 mA | 2 |
| Maximum Zener impedance | ZZT | | | 95 | Ω | @ IZT = 5 mA | 2 |
| Maximum Zener impedance (knee) | ZZK | | | 600 | Ω | @ IZK = 1.0 mA | 2 |
| Maximum reverse current | IR | | | 10 | μA | VR = 1.0 V | 2 |
| Temperature coefficient of Zener voltage (min) | θVZ | -3.5 | | | mV/°C | @ IZT = 5 mA | 2 |
| Temperature coefficient of Zener voltage (max) | θVZ | | | 0 | mV/°C | @ IZT = 5 mA | 2 |
| Forward voltage | VF | | | 0.9 | V | @ IF = 10mA (Note 2: pulsed, period 5 ms, pulse width 300 μs) | 1 |
| Power dissipation | Pd | | | 300 | mW | Note 1: valid provided device terminals are kept at ambient temperature | 1 |
| Operating junction and storage temperature range | TJ,Tstg | -55 | | 150 | ℃ | | 1 |
| Thermal resistance, junction to ambient | RθJA | | 417 | | ℃/W | | 1 |
## CAD (KiCad official)
- Symbol: `BZX84C3V0`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bzx84c3v0-etched.step` / `bzx84c3v0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzx84c3v0.step` / `bzx84c3v0.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](docs/bzx84c3v0-datasheet.pdf) (5 pp, sha256 `68e6789497edcdb3`, retrieved 2026-11-12, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/bzx84c3v0-datasheet.pdf)