component
BZX85B39
Public Made by Adomby adom
LGE Zener Diodes, DO-41. 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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BZX85B39
LGE · Zener Diodes · DO-41
BZX85B39 from LGE, in a DO-41. 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-41 |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Zener Impedance | ZZT | 50 | Ω | @ IZT = 6.0 mA | 2 | ||
| Maximum Zener Impedance | ZZK | 1000 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum Reverse Leakage Current | IR | 0.5 | µA | @ VR = 30 V | 2 | ||
| Maximum DC Zener Current | IZM | 28 | mA | 2 | |||
| Maximum Forward Voltage | VF | 1.2 | V | at IF = 200 mA | 1 | ||
| DC Power Dissipation | PD | 1.3 | W | TL = 50 °C (Note 1) | 1 | ||
| Maximum Thermal Resistance Junction to Ambient Air | RӨJA | 130 | K / W | Leads kept at ambient at 10 mm from case (Note 2) | 1 | ||
| Junction Temperature Range | TJ | -65 | 200 | °C | 1 | ||
| Storage Temperature Range | TSTG | -65 | 200 | °C | 1 | ||
| Nominal Zener Voltage Tolerance | VZ | -2 | 2 | % | Standard tolerance on nominal zener voltage (Note 1) | 2 | |
| Nominal Zener Voltage | VZ | 39 | V | @ IZT = 6.0 mA | 2 |
CAD (KiCad official)
- Symbol:
BZX85B39 - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (2 pp, sha256
0b73ba0daac548e8, 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).
# BZX85B39
**LGE** · Zener Diodes · DO-41
BZX85B39 from LGE, in a DO-41. 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-41 |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Zener Impedance | ZZT | | | 50 | Ω | @ IZT = 6.0 mA | 2 |
| Maximum Zener Impedance | ZZK | | | 1000 | Ω | @ IZK = 0.25 mA | 2 |
| Maximum Reverse Leakage Current | IR | | | 0.5 | µA | @ VR = 30 V | 2 |
| Maximum DC Zener Current | IZM | | | 28 | mA | | 2 |
| Maximum Forward Voltage | VF | | | 1.2 | V | at IF = 200 mA | 1 |
| DC Power Dissipation | PD | | | 1.3 | W | TL = 50 °C (Note 1) | 1 |
| Maximum Thermal Resistance Junction to Ambient Air | RӨJA | | | 130 | K / W | Leads kept at ambient at 10 mm from case (Note 2) | 1 |
| Junction Temperature Range | TJ | -65 | | 200 | °C | | 1 |
| Storage Temperature Range | TSTG | -65 | | 200 | °C | | 1 |
| Nominal Zener Voltage Tolerance | VZ | -2 | | 2 | % | Standard tolerance on nominal zener voltage (Note 1) | 2 |
| Nominal Zener Voltage | VZ | | 39 | | V | @ IZT = 6.0 mA | 2 |
## CAD (KiCad official)
- Symbol: `BZX85B39`
- Footprint: `Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal`
- 3D model: DO-41 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [LGE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588895540309975040) (2 pp, sha256 `0b73ba0daac548e8`, 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/bzx85b39-datasheet.pdf)