component
BZX84C39Q
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 9d ago |
| viewers | 9d ago |
| bzx84c39q-etched.glb | 9d ago |
| bzx84c39q-etched.step | 9d ago |
| bzx84c39q-hero.glb | 9d ago |
| bzx84c39q-hero.overlay.json | 9d ago |
| bzx84c39q.glb | 9d ago |
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| bzx84c39q.lbr | 9d ago |
| bzx84c39q.step | 9d ago |
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BZX84C39Q
Yangzhou Yangjie Elec Tech · Zener Diodes · SOT-23
BZX84C39Q from Yangzhou Yangjie Elec Tech, 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, shown on the page 1 schematic connected to the diode's anode side (VZ 37 V min, 39 V typ, 41 V max at IZT=2 mA for BZX84C39Q). |
| 2 | NC | unconnected | No internal connection; the page 1 schematic shows pin 2 with no connection to the diode. |
| 3 | K | passive | Cathode of the Zener diode, connected to the diode's cathode side; maximum power dissipation of the package is 350 mW. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| 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) | Vz | 37 | 39 | 41 | V | Izt = 2 mA | 2 |
| Zener voltage tolerance | -5 | 5 | % | 1 | |||
| Zener impedance | Zzt | 130 | Ω | IZt = 2 mA | 2 | ||
| Zener impedance at knee | Zzk | 350 | Ω | Izk = 0.5 mA | 2 | ||
| Reverse leakage current | IR | 0.1 | uA | VR = 27.3 V | 2 | ||
| Typical temperature coefficient | 33.4 | 41.2 | mV/℃ | IZTC = 2 mA | 2 | ||
| Power dissipation | PD | 350 | mW | Ta=25℃ | 1 | ||
| Storage temperature range | Tstg | -55 | 150 | °C | 1 | ||
| Junction temperature | TJ | -55 | 150 | °C | 1 | ||
| Maximum forward voltage | VF | 0.9 | V | IF = 10 mAdc | 1 | ||
| Thermal resistance junction to ambient air | RθJA | 357 | °C/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | black | 4. Body color: Black | 5 | |
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
BZX84C39Q - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bzx84c39q-etched.step/bzx84c39q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84c39q.step/bzx84c39q.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (6 pp, sha256
6ee6bf4524a8b88e, retrieved 2026-10-18, 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).