# ESDM15VD3

**Changjing** · ESD And Surge Protection (TVS/ESD) · SOD-323

ESDM15VD3 from Changjing, 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 | K | passive | Cathode of the uni-directional ESD diode, identified by the marking bar, connected to the protected line with 15V reverse stand-off voltage. |
| 2 | A | passive | Anode of the uni-directional ESD diode, the terminal opposite the cathode marking bar, for protection of one line. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 |  |  | 15 | V |  | 3 |
| Reverse leakage current | IR |  |  | 1 | μA | VRWM=15V | 3 |
| Breakdown voltage | V(BR) | 16.7 |  | 20 | V | IT=1mA | 3 |
| Clamping voltage | VC |  |  | 34 | V | IPP=6A, 8/20μs | 3 |
| Forward voltage | VF |  |  | 0.9 | V | IF=10mA | 3 |
| Junction capacitance | CJ |  | 30 |  | pF | VR=0V, f=1MHz | 3 |
| IEC 61000-4-2 ESD voltage, air | VESD | -30 |  | 30 | kV | Ta=25℃, air discharge | 2 |
| IEC 61000-4-2 ESD voltage, contact | VESD | -30 |  | 30 | kV | Ta=25℃, contact discharge | 2 |
| ESD voltage, human body model | VESD | -16 |  | 16 | kV | JESD22-A114-B, Ta=25℃ | 2 |
| ESD voltage, machine model | VESD | -0.4 |  | 0.4 | kV | Ta=25℃ | 2 |
| Peak pulse power | PPP |  |  | 204 | W | 8/20μs, IEC61000-4-5 | 2 |
| Peak pulse current | IPP |  |  | 6 | A | 8/20μs, IEC61000-4-5 | 2 |
| Lead solder temperature | TL |  |  | 260 | ℃ | 10 second duration | 2 |
| Operation junction and storage temperature range | TJ,Tstg | -55 |  | 150 | ℃ |  | 2 |

## CAD (KiCad official)

- Symbol: `ESDM15VD3`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `esdm15vd3-etched.step` / `esdm15vd3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esdm15vd3.step` / `esdm15vd3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590922113052057600) (6 pp, sha256 `e8c9391add5f3595`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-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/esdm15vd3-datasheet.pdf)