component
BZX84C4V3W-7-F
Public Made by Adomby adom
Diodes Incorporated Zener Diodes, SOT-323. 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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Contents
README
markdownBZX84C4V3W-7-F
Diodes Incorporated · Zener Diodes · SOT-323
BZX84C4V3W-7-F from Diodes Incorporated, in a SOT-323. 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, the lower-left lead in the device schematic. |
| 2 | NC | unconnected | No internal connection; the lower-right lead in the device schematic is not connected to the diode. |
| 3 | K | passive | Cathode of the Zener diode, the single top lead in the device schematic. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-323 |
| 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 4.3 V, type BZX84C4V3W, marking KRH) | VZ | 4 | 4.3 | 4.6 | V | @ IZT = 5mA | 2 |
| Maximum Zener impedance | ZZT | 90 | Ω | @ IZT = 5mA (Note 6: f = 1KHz) | 2 | ||
| Maximum Zener impedance | ZZK | 600 | Ω | @ IZK = 1.0 mA (Note 6: f = 1KHz) | 2 | ||
| Maximum reverse current | IR | 3 | uA | @ VR = 1.0 V | 2 | ||
| Temperature coefficient of Zener voltage | -3.5 | 0 | mV/°C | @ IZT = 5mA | 2 | ||
| Forward voltage | VF | 0.9 | V | @ IF = 10mA | 1 | ||
| Power dissipation | PD | 200 | mW | Note 3: mounted on FR4 PC board with recommended pad layout | 1 | ||
| Thermal resistance, junction to ambient air | RθJA | 625 | K/W | Note 3: mounted on FR4 PC board with recommended pad layout | 1 | ||
| Operating and storage temperature range | TJ, TSTG | -65 | 125 | °C | 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 | 1 |
CAD (KiCad official)
- Symbol:
BZX84C4V3W-7-F - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
bzx84c4v3w-7-f-etched.step/bzx84c4v3w-7-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84c4v3w-7-f.step/bzx84c4v3w-7-f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (4 pp, sha256
d9219bc3aedc6fa2, 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).