component
BZV55C18
Public Made by Adomby adom
LGE Zener Diodes, LL-34. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
main
BZV55C18
LGE · Zener Diodes · LL-34
BZV55C18 from LGE, in a LL-34. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | LL-34 |
| 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 | 16.8 | 19.1 | V | @ IZT = 5 mA | 4 | |
| Zener differential impedance | ZZT | 50 | Ohms | @ IZT = 5 mA | 4 | ||
| Zener knee differential impedance | ZZK | 170 | Ohms | @ IZK = 1.0 mA | 4 | ||
| Reverse current | IR | 0.1 | uA | @ VR = 13 V | 4 | ||
| Forward voltage | VF | 1 | V | @ IF = 100 mA | 4 | ||
| Power dissipation | Ptot | 500 | mW | Rating at 25 °C ambient temperature | 1 | ||
| Operating and storage temperature range | TJ, TSTG | -65 | 200 | °C | 1 | ||
| Thermal resistance junction to ambient (single pulse) | RthJA | 300 | K/W | Single pulse; note printed under 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:
BZV55C18 - Footprint:
Diode_SMD:D_MiniMELF - 3D model: LL-34 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (4 pp, sha256
d50783a8653f08c7, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# BZV55C18
**LGE** · Zener Diodes · LL-34
BZV55C18 from LGE, in a LL-34. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | LL-34 |
| 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 | 16.8 | | 19.1 | V | @ IZT = 5 mA | 4 |
| Zener differential impedance | ZZT | | | 50 | Ohms | @ IZT = 5 mA | 4 |
| Zener knee differential impedance | ZZK | | | 170 | Ohms | @ IZK = 1.0 mA | 4 |
| Reverse current | IR | | | 0.1 | uA | @ VR = 13 V | 4 |
| Forward voltage | VF | | | 1 | V | @ IF = 100 mA | 4 |
| Power dissipation | Ptot | | | 500 | mW | Rating at 25 °C ambient temperature | 1 |
| Operating and storage temperature range | TJ, TSTG | -65 | | 200 | °C | | 1 |
| Thermal resistance junction to ambient (single pulse) | RthJA | | 300 | | K/W | Single pulse; note printed under 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: `BZV55C18`
- Footprint: `Diode_SMD:D_MiniMELF`
- 3D model: LL-34 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [LGE datasheet](docs/bzv55c18-datasheet.pdf) (4 pp, sha256 `d50783a8653f08c7`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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).
[Datasheet PDF](docs/bzv55c18-datasheet.pdf)