# 3225D561KJ

**JUXING** · Varistors · SMC

3225D561KJ from JUXING, in a SMC. 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 fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JUXING |
| Package | SMC |
| Category | TVS/Fuse/Board Level 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 |
|---|---|---|---|---|---|---|---|
| Varistor voltage | V1mA | 504 | 560 | 616 | V | @1mA DC | 2 |
| Varistor voltage tolerance |  | -10 |  | 10 | % | K code | 1 |
| Maximum continuous operating voltage (AC) | VAC(rms) |  |  | 350 | V |  | 2 |
| Maximum continuous operating voltage (DC) | VDC |  |  | 450 | V |  | 2 |
| Maximum clamping voltage | VP |  |  | 930 | V | 8/20μs, IP = 5 A | 2 |
| Clamping test current | IP |  | 5 |  | A | 8/20μs | 2 |
| Maximum surge current | Imax |  |  | 800 | A | 8/20μs | 2 |
| Maximum energy | Wmax |  |  | 9.5 | J | 10/1000μs | 2 |
| Rated power | P |  |  | 0.1 | W |  | 2 |
| Operating temperature |  | -40 |  | 150 | °C |  | 1 |
| Storage temperature (original package) |  | -10 |  | 40 | °C | original packaging, RH ≤75% | 6 |
| Maximum soldering time at peak temperature |  |  |  | 10 | s | Sn/Ag/Cu 96.5/3.0/0.5 lead-free paste | 6 |

## CAD (KiCad official)

- Symbol: `3225D561KJ`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC (KiCad packages3D, STEP)
- 3D model files: `3225d561kj-etched.step` / `3225d561kj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `3225d561kj.step` / `3225d561kj.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JUXING datasheet](docs/3225d561kj-datasheet.pdf) (6 pp, sha256 `9f6ddc0c208904a3`, retrieved 2026-10-22, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/3225d561kj-datasheet.pdf)