component
BZX84C3V9_R1_00001
Public Made by Adomby adom
PANJIT International 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
markdownBZX84C3V9_R1_00001
PANJIT International · Zener Diodes · SOT-23
BZX84C3V9_R1_00001 from PANJIT International, 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 (BZX84C3V9, nominal VZ 3.9 V, 3.71 to 4.10 V at 5.0 mA). |
| 2 | NC | unconnected | No internal connection shown in the single-diode package diagram. |
| 3 | K | passive | Cathode of the single zener diode (BZX84C3V9, nominal VZ 3.9 V, 410 mW maximum power dissipation). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 (nominal 3.9 V, min/max at IZT) | VZ | 3.71 | 3.9 | 4.1 | V | IZT = 5.0 mA | 2 |
| Max Zener impedance | ZZT | 90 | Ω | IZT = 5.0 mA | 2 | ||
| Max Zener impedance (knee) | ZZK | 600 | Ω | IZK = 1.00 mA | 2 | ||
| Max reverse leakage current | IR | 3 | µA | VR = 1.0 V | 2 | ||
| Maximum power dissipation | PD | 410 | mW | at 25°C (Notes 1: mounted on 50mm x 16mm FR-4 board) | 1 | ||
| Operating junction and storage temperature range | TJ | -55 | 150 | °C | 1 | ||
| Typical thermal resistance, junction to ambient | RΘJA | 500 | °C/W | Junction to ambient (Notes 2: minimum pad layout, 1cm x 1cm FR-4 board) | 1 |
CAD (KiCad official)
- Symbol:
BZX84C3V9_R1_00001 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.0 mm tall, datasheet A, midpoint of min and max). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files:
bzx84c3v9-r1-00001-etched.step/bzx84c3v9-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84c3v9-r1-00001.step/bzx84c3v9-r1-00001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (6 pp, sha256
c08a5cbc21474fa4, 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).