# ASMD1206-035

**Shenzhen JDT Fuse** · Resettable Fuses · 1206

ASMD1206-035 from Shenzhen JDT Fuse, in a 1206. 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 | Shenzhen JDT Fuse |
| Package | 1206 |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current (maximum current that will not trip, 25°C still air) | IHOLD |  |  | 0.35 | A | 25°C still air | 3 |
| Trip current (minimum current that always trips, 25°C still air) | ITRIP | 0.75 |  |  | A | 25°C still air | 3 |
| Maximum operating voltage (V max) | VMAX |  |  | 6 | V | at rated current (Imax) | 3 |
| Maximum fault current (I max) | IMAX |  |  | 100 | A | at rated voltage (V max) | 3 |
| Minimum device resistance prior to tripping (Ri min) | Ri min | 0.25 |  |  | Ω | 25°C | 3 |
| Maximum device resistance one hour post reflow (R1max) | R1max |  |  | 1.5 | Ω | measured one hour post reflow | 3 |
| Maximum time to trip |  |  |  | 0.1 | s | test current 8.0 A | 3 |
| Power dissipation Pd (tripped state) | Pd |  | 0.6 |  | W | tripped state, rated voltage, 25°C still air | 3 |
| Ambient operating temperature |  | -40 |  | 85 | °C | ambient operating conditions | 4 |
| Maximum surface temperature in tripped state |  |  |  | 125 | °C | tripped state | 4 |
| Passive aging resistance change |  | -5 |  | 5 | % | +85°C, 1000 hrs; printed ±5% typical (series-wide) | 4 |
| Humidity aging resistance change |  | -5 |  | 5 | % | +85°C, 85% R.H., 168 hours; printed ±5% typical (series-wide) | 4 |
| Thermal shock resistance change |  | -33 |  | 33 | % | +85°C to -40°C, 20 times; printed ±33% typical (series-wide) | 4 |
| Storage temperature (maximum) |  |  |  | 40 | °C | storage, 70% R.H. max | 8 |
| Peak reflow temperature (Pb-free profile) | Tp |  |  | 260 | °C | Pb-free assembly reflow profile | 6 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | Copper | tin | Terminal pad materials：Tin-plated Nickel-Copper | 7 |

## CAD (KiCad official)

- Symbol: `ASMD1206-035`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `asmd1206-035-etched.step` / `asmd1206-035-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `asmd1206-035.step` / `asmd1206-035.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen JDT Fuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899509858947072) (10 pp, sha256 `463312e971cfc6bb`, retrieved 2026-10-17, 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/asmd1206-035-datasheet.pdf)