# SMD0603P075TF

**RUILON Shenzhen Ruilongyuan Elec** · Resettable Fuses · 0603

SMD0603P075TF from RUILON Shenzhen Ruilongyuan Elec, 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 | RUILON Shenzhen Ruilongyuan Elec |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum operating voltage (Vmax) at rated current | Vmax |  |  | 6 | VDC | At rated current (Imax); maximum operating voltage the device can withstand without damage | 2 |
| Maximum fault current (Imax) at rated voltage | Imax |  |  | 8 | A | At rated voltage (Vmax); maximum fault current device can withstand without damage | 2 |
| Trip current (Itrip) | Itrip | 1.4 |  |  | A | 25°C still air; minimum current at which the device will always trip | 2 |
| Hold current (Ihold) | Ihold |  | 0.75 |  | A | 25°C still air; maximum current device will not trip | 2 |
| Power dissipation in tripped state (Pd) | Pd |  | 0.1 |  | W | 25°C still air, at rated voltage, tripped state | 2 |
| Hold current derating at -40 °C ambient | Ih |  | 0.98 |  | A | Thermal derating chart, ambient -40 ºC | 3 |
| Hold current derating at 85 °C ambient | Ih |  | 0.31 |  | A | Thermal derating chart, ambient 85 ºC | 3 |
| Ambient operating temperature |  | -40 |  | 85 | °C | Ambient operating conditions | 1 |
| Maximum surface temperature in tripped state |  |  |  | 125 | °C | Device in tripped state | 1 |
| Resistance change after passive aging |  | -5 |  | 5 | % | +85℃, 1000 hrs; typical | 1 |
| Resistance change after humidity aging |  | -5 |  | 5 | % | +85℃, 85% R.H., 168 hours; typical | 1 |
| Resistance change after thermal shock |  | -33 |  | 33 | % | +85℃ to -40℃, 20 times; typical | 1 |
| Peak reflow temperature (TP) | TP |  |  | 260 | °C | Pb-free reflow, peak 260 +0/-5°C; do not exceed 260°C | 4 |

## CAD (KiCad official)

- Symbol: `SMD0603P075TF`
- Footprint: `Fuse:Fuse_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `smd0603p075tf-etched.step` / `smd0603p075tf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd0603p075tf.step` / `smd0603p075tf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [RUILON Shenzhen Ruilongyuan Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586172340887961600) (8 pp, sha256 `5ea86164dfc1ed7e`, 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/smd0603p075tf-datasheet.pdf)