component
AD-BZX84C9V1
Public Made by Adomby adom
Changjing 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
markdownAD-BZX84C9V1
Changjing · Zener Diodes · SOT-23
AD-BZX84C9V1 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 single Zener diode, shown connected to pin 3 through the diode in the equivalent circuit. |
| 2 | NC | unconnected | Not connected internally; the equivalent circuit shows no connection to the diode. |
| 3 | K | passive | Cathode of the single Zener diode (Zener voltage 9.1V typ. at IZT = 5mA for the C9V1 type). |
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 | VZ | 8.5 | 9.1 | 9.6 | V | IZT = 5mA | 2 |
| Maximum Zener impedance | ZZT | 15 | Ω | IZT = 5mA, f = 1kHz | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 100 | Ω | IZK = 1.0mA, f = 1kHz | 2 | ||
| Maximum reverse current | IR | 0.5 | µA | VR = 6.0V | 2 | ||
| Temperature coefficient of Zener voltage | 3.8 | 7 | mV/°C | IZT = 5mA | 2 | ||
| Forward voltage | VF | 0.9 | V | IF = 10mA | 1 | ||
| Power dissipation | PD | 300 | mW | Tj = 25°C | 1 | ||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 150 | °C | 1 | ||
| Thermal resistance from junction to ambient | RθJA | 417 | °C/W | 1 inch2 FR-4 board, 1oz single-side copper, still air, Ta = 25℃ | 1 | ||
| Test current | IZT | 5 | mA | 2 | |||
| Knee test current | IZK | 1 | mA | 2 |
CAD (KiCad official)
- Symbol:
AD-BZX84C9V1 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ad-bzx84c9v1-etched.step/ad-bzx84c9v1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-bzx84c9v1.step/ad-bzx84c9v1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
4b84ce328741d738, retrieved 2026-10-23, 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).