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SMD0603P020TF
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RUILON Shenzhen Ruilongyuan Elec Resettable Fuses, 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMD0603P020TF
RUILON Shenzhen Ruilongyuan Elec · Resettable Fuses · 0603
SMD0603P020TF 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 | First terminal of the non-polarized resettable PTC fuse, in series with the protected line, rated Ihold 0.2 A, Itrip 0.5 A, Vmax 9 VDC and Imax 1 A. |
| 2 | 2 | passive | Second terminal of the non-polarized resettable PTC fuse, interchangeable with the first, rated Ihold 0.2 A, Itrip 0.5 A, Vmax 9 VDC and Imax 1 A. |
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 |
|---|---|---|---|---|---|---|---|
| Hold current (maximum, will not trip at 25°C still air) | Ihold | 0.2 | A | 25°C still air; maximum current device will not trip | 2 | ||
| Trip current (minimum, will always trip at 25°C still air) | Itrip | 0.5 | A | 25°C still air; minimum current device will always trip | 2 | ||
| Maximum operating voltage | Vmax | 9 | VDC | Maximum voltage device can withstand without damage at rated current (Imax) | 2 | ||
| Maximum fault current | Imax | 40 | A | Maximum fault current device can withstand without damage at rated voltage (Vmax) | 2 | ||
| Maximum time to trip | Tmax | 0.6 | s | Time to trip at 1 A current | 2 | ||
| Minimum device resistance prior to tripping | Ri min | 0.55 | Ω | 25°C | 2 | ||
| Maximum device resistance one hour post reflow | R1max | 3.5 | Ω | Measured one hour post reflow | 2 | ||
| Power dissipation in tripped state | Pd | 0.5 | W | Tripped state, 25°C still air, at rated voltage | 2 | ||
| Resistance change, passive aging | -5 | 5 | % | +85°C, 1000 hrs; typical | 1 | ||
| Resistance change, humidity aging | -5 | 5 | % | +85°C, 85% R.H., 168 hours; typical | 1 | ||
| Resistance change, thermal shock | -33 | 33 | % | +85°C to -40°C, 20 times; typical | 1 | ||
| Maximum surface temperature in tripped state | 125 | °C | Device in tripped state | 1 | |||
| Ambient operating temperature | -40 | 85 | °C | Ambient operating conditions | 1 | ||
| Peak reflow temperature (Pb-free) | TP | 260 | °C | Pb-free reflow; peak 260 +0/-5°C; do not exceed 260°C | 4 | ||
| Hold current derated at ambient | Ihold | 0.27 | A | Ambient -40 ºC, thermal derating chart | 3 | ||
| Hold current derated at ambient | Ihold | 0.25 | A | Ambient -20 ºC, thermal derating chart | 3 | ||
| Hold current derated at ambient | Ihold | 0.23 | A | Ambient 0 ºC, thermal derating chart | 3 | ||
| Hold current derated at ambient | Ihold | 0.2 | A | Ambient 25 ºC, thermal derating chart | 3 | ||
| Hold current derated at ambient | Ihold | 0.17 | A | Ambient 40 ºC, thermal derating chart | 3 | ||
| Hold current derated at ambient | Ihold | 0.14 | A | Ambient 50 ºC, thermal derating chart | 3 | ||
| Hold current derated at ambient | Ihold | 0.12 | A | Ambient 60 ºC, thermal derating chart | 3 | ||
| Hold current derated at ambient | Ihold | 0.1 | A | Ambient 70 ºC, thermal derating chart | 3 | ||
| Hold current derated at ambient | Ihold | 0.07 | A | Ambient 85 ºC, thermal derating chart | 3 |
CAD (KiCad official)
- Symbol:
SMD0603P020TF - Footprint:
Fuse:Fuse_0603_1608Metric - 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files:
smd0603p020tf-etched.step/smd0603p020tf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd0603p020tf.step/smd0603p020tf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RUILON Shenzhen Ruilongyuan Elec datasheet (8 pp, sha256
5ea86164dfc1ed7e, retrieved 2026-10-16, 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).
# SMD0603P020TF
**RUILON Shenzhen Ruilongyuan Elec** · Resettable Fuses · 0603
SMD0603P020TF 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 | First terminal of the non-polarized resettable PTC fuse, in series with the protected line, rated Ihold 0.2 A, Itrip 0.5 A, Vmax 9 VDC and Imax 1 A. |
| 2 | 2 | passive | Second terminal of the non-polarized resettable PTC fuse, interchangeable with the first, rated Ihold 0.2 A, Itrip 0.5 A, Vmax 9 VDC and Imax 1 A. |
## 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 |
|---|---|---|---|---|---|---|---|
| Hold current (maximum, will not trip at 25°C still air) | Ihold | | | 0.2 | A | 25°C still air; maximum current device will not trip | 2 |
| Trip current (minimum, will always trip at 25°C still air) | Itrip | 0.5 | | | A | 25°C still air; minimum current device will always trip | 2 |
| Maximum operating voltage | Vmax | | | 9 | VDC | Maximum voltage device can withstand without damage at rated current (Imax) | 2 |
| Maximum fault current | Imax | | | 40 | A | Maximum fault current device can withstand without damage at rated voltage (Vmax) | 2 |
| Maximum time to trip | Tmax | | | 0.6 | s | Time to trip at 1 A current | 2 |
| Minimum device resistance prior to tripping | Ri min | 0.55 | | | Ω | 25°C | 2 |
| Maximum device resistance one hour post reflow | R1max | | | 3.5 | Ω | Measured one hour post reflow | 2 |
| Power dissipation in tripped state | Pd | | 0.5 | | W | Tripped state, 25°C still air, at rated voltage | 2 |
| Resistance change, passive aging | | -5 | | 5 | % | +85°C, 1000 hrs; typical | 1 |
| Resistance change, humidity aging | | -5 | | 5 | % | +85°C, 85% R.H., 168 hours; typical | 1 |
| Resistance change, thermal shock | | -33 | | 33 | % | +85°C to -40°C, 20 times; typical | 1 |
| Maximum surface temperature in tripped state | | | | 125 | °C | Device in tripped state | 1 |
| Ambient operating temperature | | -40 | | 85 | °C | Ambient operating conditions | 1 |
| Peak reflow temperature (Pb-free) | TP | | | 260 | °C | Pb-free reflow; peak 260 +0/-5°C; do not exceed 260°C | 4 |
| Hold current derated at ambient | Ihold | | 0.27 | | A | Ambient -40 ºC, thermal derating chart | 3 |
| Hold current derated at ambient | Ihold | | 0.25 | | A | Ambient -20 ºC, thermal derating chart | 3 |
| Hold current derated at ambient | Ihold | | 0.23 | | A | Ambient 0 ºC, thermal derating chart | 3 |
| Hold current derated at ambient | Ihold | | 0.2 | | A | Ambient 25 ºC, thermal derating chart | 3 |
| Hold current derated at ambient | Ihold | | 0.17 | | A | Ambient 40 ºC, thermal derating chart | 3 |
| Hold current derated at ambient | Ihold | | 0.14 | | A | Ambient 50 ºC, thermal derating chart | 3 |
| Hold current derated at ambient | Ihold | | 0.12 | | A | Ambient 60 ºC, thermal derating chart | 3 |
| Hold current derated at ambient | Ihold | | 0.1 | | A | Ambient 70 ºC, thermal derating chart | 3 |
| Hold current derated at ambient | Ihold | | 0.07 | | A | Ambient 85 ºC, thermal derating chart | 3 |
## CAD (KiCad official)
- Symbol: `SMD0603P020TF`
- Footprint: `Fuse:Fuse_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `smd0603p020tf-etched.step` / `smd0603p020tf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd0603p020tf.step` / `smd0603p020tf.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/8586172338420899840) (8 pp, sha256 `5ea86164dfc1ed7e`, retrieved 2026-10-16, 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/smd0603p020tf-datasheet.pdf)