# nSMD110-30V

**TECHFUSE** · Resettable Fuses · 1206

nSMD110-30V from TECHFUSE, 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 | One terminal of the non-polarized PPTC resettable fuse (Ihold 1.10 A, Itrip 2.20 A, Vmax 30 Vdc, Imax 100 A); interchangeable with the other terminal. |
| 2 | 2 | passive | Second terminal of the non-polarized PPTC resettable fuse (Ihold 1.10 A, Itrip 2.20 A, Vmax 30 Vdc, Imax 100 A); interchangeable with the other terminal. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECHFUSE |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum operating voltage (Vmax) | Vmax |  |  | 30 | Vdc | at rated current (Imax) | 2 |
| Maximum fault current (Imax) | Imax |  |  | 100 | A | at rated voltage (Vmax) | 2 |
| Hold current (Ihold) | Ihold |  | 1.1 |  | A | 25°C still air | 2 |
| Trip current (Itrip) | Itrip |  |  | 2.2 | A | 25°C still air | 2 |
| Power dissipation in tripped state (Pd) | Pd |  | 0.6 |  | W | 25°C still air, tripped state, at rated voltage | 2 |
| Time to trip |  |  | 8 |  | Sec |  | 2 |
| Minimum device resistance prior to tripping (Rimin) | Rimin |  |  | 0.3 |  | 25°C | 2 |
| Maximum device resistance one hour post reflow (R1max) | R1max |  |  | 0.05 |  | measured one hour post reflow, 25°C | 2 |
| Maximum resistance (unlabeled column) |  |  |  | 0.25 |  |  | 2 |
| Ambient operating temperature | Tamb | -40 |  | 85 | °C |  | 2 |
| Maximum surface temperature in tripped state |  |  |  | 125 | °C | device in tripped state | 2 |
| Storage temperature (storage conditions) |  |  |  | 40 | °C | 70% R.H. max | 4 |

## 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 | α = Trademark H = Part identification Termination Pad Characteristics Terminal pad materials： Tin-plated Nickel-Copper Terminal pad solderability： Meets EIA specification RS186-9E and ANSI/J-STD-002 C | 3 |

## CAD (KiCad official)

- Symbol: `nSMD110-30V`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `nsmd110-30v-etched.step` / `nsmd110-30v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nsmd110-30v.step` / `nsmd110-30v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECHFUSE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590923944600432640) (4 pp, sha256 `a0546e1fc8cad488`, retrieved 2026-10-18, 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/nsmd110-30v-datasheet.pdf)