component
BZX84B3V9-7-F
Public Made by Adomby adom
Diodes Incorporated Zener Diodes, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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BZX84B3V9-7-F
Diodes Incorporated · Zener Diodes · SOT-23-3
BZX84B3V9-7-F from Diodes Incorporated, in a SOT-23-3. 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 3.9V zener diode (VZ 3.82V to 3.98V at IZT = 5.0mA), shown at the lower-left lead in the device schematic. |
| 2 | NC | unconnected | No internal connection; the lower-right lead is not connected to the diode in the device schematic. |
| 3 | K | passive | Cathode of the zener diode, shown at the single top lead in the device schematic; it goes positive relative to the anode in reverse breakdown. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23-3 |
| 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 | 3.82 | 3.9 | 3.98 | V | @ IZT = 5.0mA, Nom 3.9V | 2 |
| Zener Test Current | IZT | 5 | mA | Test current for VZ, ZZT | 2 | ||
| Maximum Zener Impedance | ZZT | 90 | Ω | @ IZT = 5.0mA, f = 1KHz | 2 | ||
| Maximum Zener Impedance (knee) | ZZK | 600 | Ω | @ IZK = 1.0mA, f = 1KHz | 2 | ||
| Maximum Reverse Current | IR | 3 | µA | VR = 1.0V | 2 | ||
| Temperature Coefficient | -3.5 | 0 | mV/°C | @ IZT = 5.0mA | 2 | ||
| Forward Voltage | VF | 0.9 | V | IF = 10mA, TA = +25°C | 2 | ||
| Power Dissipation (Note 5) | PD | 300 | mW | Device mounted on FR-4 PCB with recommended pad layout | 2 | ||
| Power Dissipation (Note 6) | PD | 350 | mW | Valid provided the terminals are kept at ambient temperature | 2 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -65 | 150 | °C | 2 | ||
| Thermal Resistance, Junction to Ambient Air (Note 5) | RθJA | 417 | °C/W | Device mounted on FR-4 PCB with recommended pad layout | 2 | ||
| Thermal Resistance, Junction to Ambient Air (Note 6) | RθJA | 357 | °C/W | Valid provided the terminals are kept at ambient temperature | 2 | ||
| Tolerance on VZ | -2 | 2 | % | 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 |
|---|---|---|---|---|
| contacts | tin | • Terminals: Solderable per MIL-STD-202, Method 208 Lead-Free Plating (Matte Tin Finish Annealed over Alloy 42 Leadframe). | 1 |
CAD (KiCad official)
- Symbol:
BZX84B3V9-7-F - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
bzx84b3v9-7-f-etched.step/bzx84b3v9-7-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84b3v9-7-f.step/bzx84b3v9-7-f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (5 pp, sha256
4d114424c6d8f3f6, retrieved 2026-10-22, tier: manufacturer) - 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).