component
BZV55C3V9
Public Made by Adomby adom
LGE Zener Diodes, SOD-80. 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
markdownBZV55C3V9
LGE · Zener Diodes · SOD-80
BZV55C3V9 from LGE, in a SOD-80. 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 | K | passive | Cathode (negative polarity terminal), marked by the blue color band; the zener voltage VZ for BZV55C3V9 is 3.7 V min to 4.1 V max at IZT = 5 mA. |
| 2 | A | passive | Anode terminal, opposite the blue color band; forward voltage is 1.0 V maximum at IF = 100 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | SOD-80 |
| Category | Diodes |
| Pins | 2 |
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 | 3.7 | 4.1 | V | IZT = 5 mA, TA=25°C | 4 | |
| Zener test current | IZT | 5 | mA | test current for VZ and ZZT | 4 | ||
| Zener Impedance at IZT | ZZT | 85 | Ω | IZT = 5 mA | 4 | ||
| Zener Impedance at IZK | ZZK | 600 | Ω | IZK = 1.0 mA | 4 | ||
| Reverse Current | IR | 2 | uA | VR = 1.0 V | 4 | ||
| Forward Voltage | VF | 1 | V | IF = 100 mA, all types | 4 | ||
| Power Dissipation | Ptot | 500 | mW | 25 °C ambient | 1 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -65 | 200 | °C | 1 | ||
| Thermal Resistance Junction to Ambient | RthJA | 300 | K/W | Single pulse, as printed in Figure 10 | 3 |
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 | Matte Tin(Sn) lead finish Blue color band indicates negative polarity | 1 |
CAD (KiCad official)
- Symbol:
BZV55C3V9 - Footprint:
Diode_SMD:D_MiniMELF - 3D model: SOD-80 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (4 pp, sha256
d50783a8653f08c7, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-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).