component
FTR0603-004
Public Made by Adomby adom
FTR Resettable Fuses, 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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FTR0603-004
FTR · Resettable Fuses · 0603
FTR0603-004 from FTR, 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 | Non-polarized solder-plated copper terminal of the resettable PTC fuse (Ihold 0.04 A, Itrip 0.12 A, Vmax 24 V, Imax 20 A), interchangeable with the other terminal. |
| 2 | 2 | passive | Non-polarized solder-plated copper terminal of the resettable PTC fuse (Ihold 0.04 A, Itrip 0.12 A, Vmax 24 V, Imax 20 A), interchangeable with the other terminal. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FTR |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current (Ihold), maximum current that passes without tripping | Ihold | 0.04 | A | 23℃ still air | 1 | ||
| Trip current (Itrip), minimum current at which device trips | Itrip | 0.12 | A | 23℃ still air | 1 | ||
| Maximum voltage device can withstand without damage | Vmax | 24 | V | at rated current (Imax) | 1 | ||
| Maximum fault current device can withstand without damage | Imax | 20 | A | at rated voltage | 1 | ||
| Typical power dissipated in tripped state | Pd | 0.5 | W | tripped state, 23℃ still air | 1 | ||
| Maximum time to trip | 1 | s | at fault current 0.20 A | 1 | |||
| Minimum resistance in initial (un-soldered) state | Rmin | 4 | Ω | initial un-soldered state | 1 | ||
| Maximum resistance at 23℃ after tripping or reflow | R1max | 40 | Ω | 23℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec | 1 | ||
| Passive aging resistance change | -50 | 50 | % | +85℃, 1000 hours; typical resistance change | 4 | ||
| Humidity aging resistance change | -50 | 50 | % | +85℃, 85%RH, 1000 hours; typical resistance change | 4 | ||
| Thermal shock resistance change | -50 | % | MIL-STD-202 Method 107G, +85℃/-40℃ 20 times; typical resistance change | 4 | |||
| Operating temperature | -40 | 85 | ℃ | operating | 4 | ||
| Storage temperature | -40 | 85 | ℃ | storage | 4 | ||
| Maximum device surface temperature in tripped state | 125 | ℃ | tripped state | 4 | |||
| Peak reflow temperature (TP) | TP | 260 | ℃ | Pb-free reflow profile | 3 | ||
| Time within 5℃ of peak temperature (tP) | tP | 20 | 40 | seconds | Pb-free reflow profile, within 5℃ of actual peak temperature | 3 | |
| Hold current derating at ambient temperature | Ihold | 0.052 | A | ambient -40℃ | 1 | ||
| Hold current derating at ambient temperature | Ihold | 0.048 | A | ambient -20℃ | 1 | ||
| Hold current derating at ambient temperature | Ihold | 0.044 | A | ambient 0℃ | 1 | ||
| Hold current derating at ambient temperature | Ihold | 0.04 | A | ambient 23℃ | 1 | ||
| Hold current derating at ambient temperature | Ihold | 0.032 | A | ambient 40℃ | 1 | ||
| Hold current derating at ambient temperature | Ihold | 0.028 | A | ambient 50℃ | 1 | ||
| Hold current derating at ambient temperature | Ihold | 0.024 | A | ambient 60℃ | 1 | ||
| Hold current derating at ambient temperature | Ihold | 0.02 | A | ambient 70℃ | 1 | ||
| Hold current derating at ambient temperature | Ihold | 0.012 | A | ambient 85℃ | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | Copper | tin | Terminal Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) | 4 |
CAD (KiCad official)
- Symbol:
FTR0603-004 - Footprint:
Fuse:Fuse_0603_1608Metric - 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files:
ftr0603-004-etched.step/ftr0603-004-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ftr0603-004.step/ftr0603-004.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: FTR datasheet (5 pp, sha256
e649d24e92e063b0, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# FTR0603-004
**FTR** · Resettable Fuses · 0603
FTR0603-004 from FTR, 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 | Non-polarized solder-plated copper terminal of the resettable PTC fuse (Ihold 0.04 A, Itrip 0.12 A, Vmax 24 V, Imax 20 A), interchangeable with the other terminal. |
| 2 | 2 | passive | Non-polarized solder-plated copper terminal of the resettable PTC fuse (Ihold 0.04 A, Itrip 0.12 A, Vmax 24 V, Imax 20 A), interchangeable with the other terminal. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FTR |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current (Ihold), maximum current that passes without tripping | Ihold | | | 0.04 | A | 23℃ still air | 1 |
| Trip current (Itrip), minimum current at which device trips | Itrip | 0.12 | | | A | 23℃ still air | 1 |
| Maximum voltage device can withstand without damage | Vmax | | | 24 | V | at rated current (Imax) | 1 |
| Maximum fault current device can withstand without damage | Imax | | | 20 | A | at rated voltage | 1 |
| Typical power dissipated in tripped state | Pd | | 0.5 | | W | tripped state, 23℃ still air | 1 |
| Maximum time to trip | | | | 1 | s | at fault current 0.20 A | 1 |
| Minimum resistance in initial (un-soldered) state | Rmin | 4 | | | Ω | initial un-soldered state | 1 |
| Maximum resistance at 23℃ after tripping or reflow | R1max | | | 40 | Ω | 23℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec | 1 |
| Passive aging resistance change | | -50 | | 50 | % | +85℃, 1000 hours; typical resistance change | 4 |
| Humidity aging resistance change | | -50 | | 50 | % | +85℃, 85%RH, 1000 hours; typical resistance change | 4 |
| Thermal shock resistance change | | | -50 | | % | MIL-STD-202 Method 107G, +85℃/-40℃ 20 times; typical resistance change | 4 |
| Operating temperature | | -40 | | 85 | ℃ | operating | 4 |
| Storage temperature | | -40 | | 85 | ℃ | storage | 4 |
| Maximum device surface temperature in tripped state | | | | 125 | ℃ | tripped state | 4 |
| Peak reflow temperature (TP) | TP | | 260 | | ℃ | Pb-free reflow profile | 3 |
| Time within 5℃ of peak temperature (tP) | tP | 20 | | 40 | seconds | Pb-free reflow profile, within 5℃ of actual peak temperature | 3 |
| Hold current derating at ambient temperature | Ihold | | 0.052 | | A | ambient -40℃ | 1 |
| Hold current derating at ambient temperature | Ihold | | 0.048 | | A | ambient -20℃ | 1 |
| Hold current derating at ambient temperature | Ihold | | 0.044 | | A | ambient 0℃ | 1 |
| Hold current derating at ambient temperature | Ihold | | 0.04 | | A | ambient 23℃ | 1 |
| Hold current derating at ambient temperature | Ihold | | 0.032 | | A | ambient 40℃ | 1 |
| Hold current derating at ambient temperature | Ihold | | 0.028 | | A | ambient 50℃ | 1 |
| Hold current derating at ambient temperature | Ihold | | 0.024 | | A | ambient 60℃ | 1 |
| Hold current derating at ambient temperature | Ihold | | 0.02 | | A | ambient 70℃ | 1 |
| Hold current derating at ambient temperature | Ihold | | 0.012 | | A | ambient 85℃ | 1 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | Copper | tin | Terminal Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) | 4 |
## CAD (KiCad official)
- Symbol: `FTR0603-004`
- Footprint: `Fuse:Fuse_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `ftr0603-004-etched.step` / `ftr0603-004-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ftr0603-004.step` / `ftr0603-004.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [FTR datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918601902665728) (5 pp, sha256 `e649d24e92e063b0`, 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/ftr0603-004-datasheet.pdf)