# K240SB

**ZHIDE** · Trigger Diodes · SMB

K240SB from ZHIDE, in a SMB. 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 | ZHIDE |
| Package | SMB |
| 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 (min/typ/max) | VBO | 240 | 260 | 280 | V |  | 1 |
| On-state voltage | VT |  |  | 4 | V | at IT 1.0 A | 1 |
| Operating junction temperature | TJ |  |  | 125 | ℃ |  | 1 |
| Storage temperature range | TS | -40 |  | 125 | ℃ |  | 1 |
| Junction to ambient on printed circuit | RθJA |  |  | 53 | ℃/W | junction to ambient on printed circuit | 1 |

## CAD (KiCad official)

- Symbol: `K240SB`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB (KiCad packages3D, STEP)
- 3D model files: `k240sb-etched.step` / `k240sb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `k240sb.step` / `k240sb.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ZHIDE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590909085389320192) (2 pp, sha256 `78751478a99277c8`, retrieved 2026-10-15, 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/k240sb-datasheet.pdf)