# SMD1206-150C-12V

**BNstar** · Resettable Fuses · 1206

SMD1206-150C-12V from BNstar, 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 | First terminal of the resettable PTC fuse (non-polarized); rated 1.5 A hold, 3.0 A trip at 25℃, Vmax 12.0 V, Imax 50 A. |
| 2 | 2 | passive | Second terminal of the resettable PTC fuse (non-polarized); rated 1.5 A hold, 3.0 A trip at 25℃, Vmax 12.0 V, Imax 50 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BNstar |
| 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 (IH) | IH |  |  | 1.5 | A | 25℃ still air; maximum current at which device will not trip (reflow 260℃ for 20 sec) | 1 |
| Trip current (IT) | IT | 3 |  |  | A | 25℃ still air; minimum current at which device will always trip (reflow 260℃ for 20 sec) | 1 |
| Maximum voltage (Vmax) | Vmax |  |  | 12 | V | Maximum continuous voltage device can withstand without damage at rated current | 1 |
| Maximum fault current (Imax) | Imax |  |  | 50 | A | Maximum fault current device can withstand without damage at rated voltage | 1 |
| Typical power dissipation (Pdtyp) | Pdtyp |  | 0.8 |  | W | Typical power dissipated by the device in the tripped state in still air | 1 |
| Maximum time to trip (Ttrip) | Ttrip |  |  | 8 | s | 25℃; at assigned current | 1 |
| Minimum resistance (Rmin) | Rmin | 0.025 |  |  | Ω | 25℃; minimum resistance in initial (un-soldered) state | 1 |
| Maximum resistance after reflow (R1max) | R1max |  |  | 0.13 | Ω | 25℃; measured one hour after reflow soldering of 260℃ for 20 sec | 1 |
| Recommended storage temperature |  |  |  | 40 | ℃ | Recommended storage conditions; 70% R.H. max | 2 |

## CAD (KiCad official)

- Symbol: `SMD1206-150C-12V`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `smd1206-150c-12v-etched.step` / `smd1206-150c-12v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd1206-150c-12v.step` / `smd1206-150c-12v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BNstar datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589785211342131200) (3 pp, sha256 `6d756223f2e0d4cd`, retrieved 2026-10-17, 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/smd1206-150c-12v-datasheet.pdf)