component
BZX55C51
Public Made by Adomby adom
LGE Zener Diodes, DO-35. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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BZX55C51
LGE · Zener Diodes · DO-35
BZX55C51 from LGE, in a DO-35. 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 | DO-35 |
| 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 (min) | VZ | 48 | V | IZT = 2.5 mA; TA = 25°C | 2 | ||
| Zener voltage (max) | VZ | 54 | V | IZT = 2.5 mA; TA = 25°C | 2 | ||
| Zener impedance (max) | ZZT | 125 | Ohms | IZT = 2.5 mA | 2 | ||
| Zener impedance at knee (max) | ZZK | 700 | Ohms | IZK = 0.5 mA | 2 | ||
| Reverse leakage current (max) | IR | 0.1 | uA | VR = 38 V | 2 | ||
| Power dissipation | Pd | 500 | mW | 1 | |||
| Maximum forward voltage | VF | 1 | V | IF = 100mA | 1 | ||
| Storage temperature range | TSTG | -65 | 200 | °C | 1 | ||
| Operating junction temperature | TJ | 200 | °C | 1 |
CAD (KiCad official)
- Symbol:
BZX55C51 - Footprint:
Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal - 3D model: DO-35 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (2 pp, sha256
73b78e0d5a45a2c3, retrieved 2026-10-14, 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).
# BZX55C51
**LGE** · Zener Diodes · DO-35
BZX55C51 from LGE, in a DO-35. 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 | DO-35 |
| 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 (min) | VZ | 48 | | | V | IZT = 2.5 mA; TA = 25°C | 2 |
| Zener voltage (max) | VZ | | | 54 | V | IZT = 2.5 mA; TA = 25°C | 2 |
| Zener impedance (max) | ZZT | | | 125 | Ohms | IZT = 2.5 mA | 2 |
| Zener impedance at knee (max) | ZZK | | | 700 | Ohms | IZK = 0.5 mA | 2 |
| Reverse leakage current (max) | IR | | | 0.1 | uA | VR = 38 V | 2 |
| Power dissipation | Pd | | | 500 | mW | | 1 |
| Maximum forward voltage | VF | | | 1 | V | IF = 100mA | 1 |
| Storage temperature range | TSTG | -65 | | 200 | °C | | 1 |
| Operating junction temperature | TJ | | | 200 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `BZX55C51`
- Footprint: `Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal`
- 3D model: DO-35 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [LGE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590891912751116288) (2 pp, sha256 `73b78e0d5a45a2c3`, retrieved 2026-10-14, 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/bzx55c51-datasheet.pdf)