# S1206-FC-5.0A

**SART Nanjing Sart Tech** · Disposable Fuses · 1206

S1206-FC-5.0A from SART Nanjing Sart Tech, 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 | SART Nanjing Sart Tech |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating temperature |  | -55 |  | 125 | ℃ |  | 1 |
| Voltage drop |  |  |  | 300 | mV | 100% of current rating; 2.0A~5.0A range | 4 |
| Voltage drop deviation between mean value |  |  |  | 15 | % | Deviation between the mean value; 2.0A~5.0A range | 4 |
| Opening time |  | 4 |  |  | hours | 100% of current rating, no fusing | 3 |
| Opening time |  |  |  | 5 | sec | 350% of current rating | 3 |
| Opening time |  | 0.1 |  |  | ms | 1000% of current rating | 3 |
| Endurance resistance change /ΔR/ | /ΔR/ |  |  | 10 | % | Endurance: 100 cycles of 1In, 1 h ON / 15 min OFF, then 1 h of 1.25In | 4 |
| Endurance temperature rise | ΔT |  |  | 75 | ℃ | Endurance: 100 cycles of 1In, then 1 h of 1.25In | 4 |
| High temperature operating life resistance change /ΔR/ | /ΔR/ |  |  | 10 | % | T=125℃±2℃, 60%In, 1000 hours; no fusing | 4 |
| Interrupting rating |  |  |  | 50 | A | 100 V DC, without permanent arcing, ignition or bursting | 1 |
| Voltage rating |  |  |  | 100 | V |  | 1 |
| Rated current |  |  | 5 |  | A | Marking T | 1 |
| Typical cold DCR |  |  | 16 |  | mΩ | Measured at ≤10% rated current and 25℃; resistance test on coating surface | 1 |
| Typical I2T | I2T |  | 0.558 |  | A2s | Melting I2T at 10 times rated current | 1 |
| Recommended storage ambient temperature |  | 5 |  | 30 | ℃ | Storage | 6 |
| Recommended storage relative humidity |  | 25 |  | 60 | %RH | Storage | 6 |

## CAD (KiCad official)

- Symbol: `S1206-FC-5.0A`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `s1206-fc-5-0a-etched.step` / `s1206-fc-5-0a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s1206-fc-5-0a.step` / `s1206-fc-5-0a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SART Nanjing Sart Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589839307704856576) (6 pp, sha256 `245a6bbea43c2eb1`, 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/s1206-fc-5-0a-datasheet.pdf)