# GBLC24C

**MDD Microdiode Semiconductor** · ESD And Surge Protection (TVS/ESD) · SOD-323

GBLC24C from MDD Microdiode Semiconductor, in a SOD-323. 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 | Bidirectional TVS terminal 1 (I/O line protected, to be connected to the signal line), VRWM 24 V max, VBR 26.7 V min at 1 mA, ESD ±15 kV air / ±8 kV contact per IEC 61000-4-2. |
| 2 | 2 | passive | Bidirectional TVS terminal 2 (interchangeable with pin 1, connect to ground or the reference side), VRWM 24 V max, VC 43.0 V max at 1 A, peak pulse power 300 W (8/20 µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MDD Microdiode Semiconductor |
| Package | SOD-323 |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage (VRWM) | VRWM |  |  | 24 | V |  | 2 |
| Breakdown voltage (VB) | VB | 26.7 |  |  | V | IT = 1 mA | 2 |
| Clamping voltage at 1 A | VC@1A |  |  | 43 | V | @1 A | 2 |
| Clamping voltage | VC |  |  | 56 | V | @A = 3 | 2 |
| Reverse leakage current | IR |  |  | 1 | µA |  | 2 |
| Junction capacitance | CT |  | 0.8 |  | pF |  | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 |  | 30 | kV | IEC 61000-4-2 (Air) | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 |  | 30 | kV | IEC 61000-4-2 (Contact) | 1 |
| Peak pulse power | PPP |  |  | 300 | W | tp=8/20 µs waveform | 1 |
| Operating temperature | TOPT | -55 |  | 150 | °C |  | 1 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 1 |
| Lead solder temperature (maximum) | TL |  |  | 260 | °C | 10 s duration | 1 |

## CAD (KiCad official)

- Symbol: `GBLC24C`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `gblc24c-etched.step` / `gblc24c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gblc24c.step` / `gblc24c.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [MDD Microdiode Semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757912263850643456) (4 pp, sha256 `3eef291afc368f01`, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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).

[Datasheet PDF](docs/gblc24c-datasheet.pdf)