component
AD-BZX84C27
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-BZX84C27
Changjing · Zener Diodes · SOT-23
AD-BZX84C27 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, connected to the triangle side of 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 Zener diode (bar side), with VZ 25.1 V min to 28.9 V max at IZT = 2 mA for the C27 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) at IZT = 2 mA | VZ | 25.1 | 27 | 28.9 | V | @ IZT = 2mA; tested with pulses, period = 5ms, pulse width = 300µs | 2 |
| Maximum Zener impedance (ZZT) at IZT | ZZT | 80 | Ω | @ IZT = 2mA; f = 1kHz | 2 | ||
| Maximum Zener impedance (ZZK) at IZK | ZZK | 300 | Ω | @ IZK = 0.5mA; f = 1kHz | 2 | ||
| Maximum reverse current | IR | 0.1 | µA | @ VR = 18.9V | 2 | ||
| Temperature coefficient of Zener voltage | 21.4 | 25.3 | mV/°C | @ IZT = 5mA | 2 | ||
| Forward voltage | VF | 0.9 | V | @ IF = 10mA; footnote 1 pulse test | 1 | ||
| Power dissipation | PD | 300 | mW | 1 | |||
| Thermal resistance, junction to ambient | RθJA | 417 | °C/W | Mounted on 1 inch² FR-4 board with 1oz single-side copper, still air, Ta = 25°C | 1 | ||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
AD-BZX84C27 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ad-bzx84c27-etched.step/ad-bzx84c27-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-bzx84c27.step/ad-bzx84c27.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
584cce9c8807fdaa, retrieved 2026-10-17, 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).