component
DB4
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LGE Diacs Trigger Diode, 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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DB4
LGE · Diacs Trigger Diode · DO-35
DB4 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
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 |
|---|---|---|---|---|---|---|---|
| Breakover voltage (DB4) | VBO | 35 | 40 | 45 | V | C=22nF (NOTE 2); See FIG.1 | 1 |
| Breakover voltage symmetry | I+VBO I-VBOI | -3 | 3 | V | See FIG.1 | 1 | |
| Dynamic breakover voltage | 5 | V | I=IBO to IF=10mA; See FIG.1 | 1 | |||
| Output voltage (NOTE 1) | Vo | 5 | V | 1 | |||
| Breakover current (NOTE 1) | IBO | 100 | µA | 1 | |||
| Leakage current (NOTE 1) | IR | 10 | µA | VR=0.5 VBO | 1 | ||
| Rise time (NOTE 1) | tr | 1.5 | µs | 1 | |||
| Repetitive peak on-state current | ITRM | 2 | A | tp=20 µs, f=120Hz | 1 | ||
| Power dissipation on printed circuit | Pc | 150 | mW | TA=50°C, circuit (L=10mm) | 1 | ||
| Operating junction temperature | TJ | -40 | 125 | °C | 1 | ||
| Storage temperature | TSTG | -40 | 125 | °C | 1 |
CAD (KiCad official)
- Symbol:
DB4 - 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
1505f5789e60f6f7, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).
# DB4
**LGE** · Diacs Trigger Diode · DO-35
DB4 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
## 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 |
|---|---|---|---|---|---|---|---|
| Breakover voltage (DB4) | VBO | 35 | 40 | 45 | V | C=22nF (NOTE 2); See FIG.1 | 1 |
| Breakover voltage symmetry | I+VBO I-VBOI | -3 | | 3 | V | See FIG.1 | 1 |
| Dynamic breakover voltage | | 5 | | | V | I=IBO to IF=10mA; See FIG.1 | 1 |
| Output voltage (NOTE 1) | Vo | 5 | | | V | | 1 |
| Breakover current (NOTE 1) | IBO | | | 100 | µA | | 1 |
| Leakage current (NOTE 1) | IR | | | 10 | µA | VR=0.5 VBO | 1 |
| Rise time (NOTE 1) | tr | | 1.5 | | µs | | 1 |
| Repetitive peak on-state current | ITRM | | | 2 | A | tp=20 µs, f=120Hz | 1 |
| Power dissipation on printed circuit | Pc | | | 150 | mW | TA=50°C, circuit (L=10mm) | 1 |
| Operating junction temperature | TJ | -40 | | 125 | °C | | 1 |
| Storage temperature | TSTG | -40 | | 125 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `DB4`
- 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](docs/db4-datasheet.pdf) (2 pp, sha256 `1505f5789e60f6f7`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/db4-datasheet.pdf)