# F0603E3R00FSTR

**Kyocera AVX** · Disposable Fuses · 0603

F0603E3R00FSTR from Kyocera AVX, 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 | Kyocera AVX |
| 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 |
|---|---|---|---|---|---|---|---|
| Resistance (10% x I rated, 25°C) |  |  |  | 0.03 | Ω | 10% x I rated, 25°C | 1 |
| Voltage drop |  |  |  | 100 | mV | @1 x I rated, 25°C | 1 |
| Current rating |  |  | 3 |  | A |  | 1 |
| Fusing current |  |  | 7.5 |  | A | within 5 sec, 25°C | 1 |
| Pre-arc I2t | I2t |  | 0.25 |  | A2-sec | @ 50A | 1 |
| Rated voltage |  |  | 32 |  | V |  | 1 |
| Operating temperature |  | -55 |  | 125 | °C |  | 1 |
| Insulation resistance |  | 20 |  |  | MΩ | after fusing at rated voltage | 1 |
| Interrupting rating |  |  | 50 |  | A |  | 1 |
| Current carrying capacity at -55°C (F0402E/F0603E) |  |  | 107 |  | % of rating | -55°C | 1 |
| Current carrying capacity at +125°C (F0402E/F0603E) |  |  | 80 |  | % of rating | +125°C | 1 |
| Current carrying capacity at +25°C (F0402E/F0603E) |  |  | 100 |  | % of rating | +25°C | 1 |
| Resistance change (rapid change of temperature) | ΔR/R |  |  | 10 | % | 50 cycles -55° to +125°C, components mounted to substrate | 2 |
| Resistance change (vibration) | ΔR/R |  |  | 10 | % | 50 cycles -55°C to +125°C, components mounted to substrate | 2 |
| Resistance change (bend) | ΔR/R |  |  | 10 | % | tested as shown in diagram, 3 mm deflection | 2 |
| Dissolution of termination (leach resistance) |  |  |  | 25 | % of area | completely immersed in solder bath at 260 ±5°C for 60 secs | 2 |

## CAD (KiCad official)

- Symbol: `F0603E3R00FSTR`
- Footprint: `Fuse:Fuse_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `f0603e3r00fstr-etched.step` / `f0603e3r00fstr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `f0603e3r00fstr.step` / `f0603e3r00fstr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Kyocera AVX datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590144162391109632) (17 pp, sha256 `3c1e3e10aa7eaf10`, 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/f0603e3r00fstr-datasheet.pdf)