# S0603-F-3.0A

**SART Nanjing Sart Tech** · Disposable Fuses · 0603

S0603-F-3.0A from SART Nanjing Sart Tech, in a 0603. 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 | 0603 |
| 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 |
|---|---|---|---|---|---|---|---|
| Opening time at 100% of rated current (printed >4hours) |  | 4 |  |  | hours | 100% of current rating, no fusing; applies to 0.5A~6.0A | 3 |
| Opening time at 250% of rated current |  |  |  | 5 | sec | 250% of current rating; 1.0A~6.0A | 3 |
| Opening time at 1000% of rated current (printed >0.1ms) |  | 0.1 |  |  | ms | 1000% of current rating; 0.5A~6.0A | 3 |
| Voltage drop deviation between mean values |  |  |  | 15 | % | 100% of current rating; IEC60127-4 | 4 |
| Temperature rise | ΔT |  |  | 75 | ℃ | 100% of current rating; UL248-14 | 4 |
| Interrupting rating (printed 50A 32V DC for 0.5A~3.5A; this MPN is 3.0A) |  | 50 |  |  | A | 32V DC; without permanent arcing, ignition and bursting of fuse link; UL248-14, IEC60127-4 | 1 |
| Solderability coverage |  | 95 |  |  | % | 240℃±5℃, 3sec±0.5sec; IEC60127-4, MIL-STD-202 Method 208 | 4 |
| Endurance test resistance change | /ΔR/ |  |  | 10 | % | 100 cycles of 1In for 1h ON, 15min OFF, then 1h at 125%In; IEC60127-4 | 4 |
| Resistance to soldering resistance change | /ΔR/ |  |  | 10 | % | 260℃±5℃, 10sec±0.5sec; MIL-STD-202 Method 210 | 4 |
| Bending test resistance change | /ΔR/ |  |  | 10 | % | Distance between holding points 90mm; bending 1mm, time 10s | 4 |
| High temperature operating life resistance change | /ΔR/ |  |  | 10 | % | T=70℃±2℃, 60%In, 96 hours; no fusing; MIL-STD-202 Method 108 | 4 |
| Humidity (steady state) resistance change | /ΔR/ |  |  | 10 | % | T=40℃±2℃, 90%~95%RH, 1000 hours; MIL-STD-202 Method 103 | 4 |
| Low temperature storage resistance change | /ΔR/ |  |  | 10 | % | T=-55℃±3℃, 96 hours; IEC60068-2-1 | 4 |
| High temperature storage resistance change | /ΔR/ |  |  | 10 | % | T=125℃±2℃, 96 hours; IEC60068-2-2 | 4 |
| Salt spray resistance change | /ΔR/ |  |  | 10 | % | 5% salt solution, 48 hours; MIL-STD-202 Method 101 | 4 |
| Thermal shock resistance change | /ΔR/ |  |  | 10 | % | 100 cycles between -65℃/+125℃, 60 minutes each extreme; MIL-STD-202 Method 107 | 4 |
| Operating temperature | T | -55 |  | 125 | ℃ | Operating temperature range | 1 |
| Infrared reflow peak temperature |  |  |  | 260 | ℃ | Infrared reflow; Pb-free profile peak temperature (Tp) | 5 |
| Infrared reflow time |  |  |  | 5 | sec | Infrared reflow, 260℃; time max | 5 |
| Wave soldering reservoir temperature |  |  |  | 260 | ℃ | Wave soldering reservoir | 5 |
| Wave soldering time in reservoir |  |  |  | 10 | sec | Wave soldering; time in reservoir | 5 |
| Hand soldering temperature |  |  |  | 350 | ℃ | Hand soldering | 5 |
| Hand soldering time |  |  |  | 5 | sec | Hand soldering, 350℃ | 5 |
| Storage temperature (recommended) | T | 5 |  | 30 | ℃ | Recommended storage ambient temperature | 6 |
| Storage relative humidity (recommended) | RH | 25 |  | 60 | %RH | Recommended storage relative humidity | 6 |
| Rated current (nominal) | IN |  | 3 |  | A |  | 1 |
| Voltage rating (nominal) |  |  | 32 |  | V |  | 1 |
| Typical cold DCR | DCR |  | 25 |  | mΩ | Measured at ≤10% rated current and 25℃ | 1 |
| Typical melting I2T | I2T |  | 0.189 |  | A2s | Melting I2T at 10 times of rated current | 1 |

## CAD (KiCad official)

- Symbol: `S0603-F-3.0A`
- Footprint: `Fuse:Fuse_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `s0603-f-3-0a-etched.step` / `s0603-f-3-0a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `s0603-f-3-0a.step` / `s0603-f-3-0a.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/8588914557562081280) (6 pp, sha256 `327d0da943575adc`, retrieved 2026-10-18, 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/s0603-f-3-0a-datasheet.pdf)