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SMD1210P110TF
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RUILON Shenzhen Ruilongyuan Elec Resettable Fuses, 1210. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMD1210P110TF
RUILON Shenzhen Ruilongyuan Elec · Resettable Fuses · 1210
SMD1210P110TF from RUILON Shenzhen Ruilongyuan Elec, in a 1210. 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 PTC resettable fuse terminal for SMD1210P110TF (Ihold 1.10 A, Itrip 2.20 A, Vmax 6 VDC, Imax 8.00 A), interchangeable with terminal 2. |
| 2 | 2 | passive | Non-polarized PTC resettable fuse terminal for SMD1210P110TF (Ihold 1.10 A, Itrip 2.20 A, Vmax 6 VDC, Imax 8.00 A), interchangeable with terminal 1. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RUILON Shenzhen Ruilongyuan Elec |
| Package | 1210 |
| 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) | Ihold | 1.1 | A | Maximum current device will not trip in 25°C still air | 2 | ||
| Trip current (Itrip) | Itrip | 2.2 | A | Minimum current at which device will always trip in 25°C still air | 2 | ||
| Maximum operating voltage (Vmax) | Vmax | 6 | VDC | Maximum voltage device can withstand without damage at rated current (Imax) | 2 | ||
| Max time to trip test current | 8 | A | Current column of the max time-to-trip rating for this row | 2 | |||
| Maximum time to trip (Tmax) | Tmax | 0.3 | S | At 8.00 A (same row) | 2 | ||
| Maximum fault current (Imax) | Imax | 35 | A | Maximum fault current device can withstand without damage at rated voltage (Vmax) | 2 | ||
| Power dissipation in tripped state (Pd) | Pd | 0.6 | W | Tripped state in 25°C still air at rated voltage | 2 | ||
| Minimum resistance prior to tripping (Rimin) | Rimin | 0.05 | Ω | 25°C, prior to tripping | 2 | ||
| Maximum resistance one hour post reflow (R1max) | R1max | 0.21 | Ω | Measured one hour post reflow | 2 | ||
| Resistance change passive aging | -5 | 5 | % | +85°C, 1000 hrs; printed as ±5% typical (series-level environmental test) | 1 | ||
| Resistance change humidity aging | -5 | 5 | % | +85°C, 85%R.H., 168 hours; printed as ±5% typical (series-level environmental test) | 1 | ||
| Resistance change thermal shock | -33 | 33 | % | +85°C to -40°C, 20 times; printed as ±33% typical (series-level environmental test) | 1 | ||
| Ambient operating temperature | -40 | 85 | °C | Ambient operating conditions | 1 | ||
| Maximum surface temperature in tripped state | 125 | °C | Device in tripped state | 1 | |||
| Derated hold current at -40 °C | Ih | 1.69 | A | Ambient -40 ºC, thermal derating chart | 3 | ||
| Derated hold current at -20 °C | Ih | 1.48 | A | Ambient -20 ºC, thermal derating chart | 3 | ||
| Derated hold current at 0 °C | Ih | 1.29 | A | Ambient 0 ºC, thermal derating chart | 3 | ||
| Derated hold current at 25 °C | Ih | 1.1 | A | Ambient 25 ºC, thermal derating chart | 3 | ||
| Derated hold current at 40 °C | Ih | 0.94 | A | Ambient 40 ºC, thermal derating chart | 3 | ||
| Derated hold current at 50 °C | Ih | 0.86 | A | Ambient 50 ºC, thermal derating chart | 3 | ||
| Derated hold current at 60 °C | Ih | 0.8 | A | Ambient 60 ºC, thermal derating chart | 3 | ||
| Derated hold current at 70 °C | Ih | 0.7 | A | Ambient 70 ºC, thermal derating chart | 3 | ||
| Derated hold current at 85 °C | Ih | 0.58 | A | Ambient 85 ºC, thermal derating chart | 3 | ||
| Peak reflow temperature (TP) | TP | 260 | °C | Pb-free reflow; printed as 260 +0/-5°C; do not exceed 260°C | 4 | ||
| Ramp-up rate to peak | 3 | °C/second | Average ramp-up rate (TL) to peak, Pb-free reflow | 4 | |||
| Ramp-down rate from peak | 6 | °C/second | Pb-free reflow, ramp-down from peak | 4 |
CAD (KiCad official)
- Symbol:
SMD1210P110TF - Footprint:
Fuse:Fuse_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
smd1210p110tf-etched.step/smd1210p110tf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1210p110tf.step/smd1210p110tf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RUILON Shenzhen Ruilongyuan Elec datasheet (7 pp, sha256
1b912bbc16f34b5c, 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).
# SMD1210P110TF
**RUILON Shenzhen Ruilongyuan Elec** · Resettable Fuses · 1210
SMD1210P110TF from RUILON Shenzhen Ruilongyuan Elec, in a 1210. 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 PTC resettable fuse terminal for SMD1210P110TF (Ihold 1.10 A, Itrip 2.20 A, Vmax 6 VDC, Imax 8.00 A), interchangeable with terminal 2. |
| 2 | 2 | passive | Non-polarized PTC resettable fuse terminal for SMD1210P110TF (Ihold 1.10 A, Itrip 2.20 A, Vmax 6 VDC, Imax 8.00 A), interchangeable with terminal 1. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RUILON Shenzhen Ruilongyuan Elec |
| Package | 1210 |
| 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) | Ihold | | 1.1 | | A | Maximum current device will not trip in 25°C still air | 2 |
| Trip current (Itrip) | Itrip | 2.2 | | | A | Minimum current at which device will always trip in 25°C still air | 2 |
| Maximum operating voltage (Vmax) | Vmax | | | 6 | VDC | Maximum voltage device can withstand without damage at rated current (Imax) | 2 |
| Max time to trip test current | | | 8 | | A | Current column of the max time-to-trip rating for this row | 2 |
| Maximum time to trip (Tmax) | Tmax | | | 0.3 | S | At 8.00 A (same row) | 2 |
| Maximum fault current (Imax) | Imax | | | 35 | A | Maximum fault current device can withstand without damage at rated voltage (Vmax) | 2 |
| Power dissipation in tripped state (Pd) | Pd | | 0.6 | | W | Tripped state in 25°C still air at rated voltage | 2 |
| Minimum resistance prior to tripping (Rimin) | Rimin | 0.05 | | | Ω | 25°C, prior to tripping | 2 |
| Maximum resistance one hour post reflow (R1max) | R1max | | | 0.21 | Ω | Measured one hour post reflow | 2 |
| Resistance change passive aging | | -5 | | 5 | % | +85°C, 1000 hrs; printed as ±5% typical (series-level environmental test) | 1 |
| Resistance change humidity aging | | -5 | | 5 | % | +85°C, 85%R.H., 168 hours; printed as ±5% typical (series-level environmental test) | 1 |
| Resistance change thermal shock | | -33 | | 33 | % | +85°C to -40°C, 20 times; printed as ±33% typical (series-level environmental test) | 1 |
| Ambient operating temperature | | -40 | | 85 | °C | Ambient operating conditions | 1 |
| Maximum surface temperature in tripped state | | | | 125 | °C | Device in tripped state | 1 |
| Derated hold current at -40 °C | Ih | | 1.69 | | A | Ambient -40 ºC, thermal derating chart | 3 |
| Derated hold current at -20 °C | Ih | | 1.48 | | A | Ambient -20 ºC, thermal derating chart | 3 |
| Derated hold current at 0 °C | Ih | | 1.29 | | A | Ambient 0 ºC, thermal derating chart | 3 |
| Derated hold current at 25 °C | Ih | | 1.1 | | A | Ambient 25 ºC, thermal derating chart | 3 |
| Derated hold current at 40 °C | Ih | | 0.94 | | A | Ambient 40 ºC, thermal derating chart | 3 |
| Derated hold current at 50 °C | Ih | | 0.86 | | A | Ambient 50 ºC, thermal derating chart | 3 |
| Derated hold current at 60 °C | Ih | | 0.8 | | A | Ambient 60 ºC, thermal derating chart | 3 |
| Derated hold current at 70 °C | Ih | | 0.7 | | A | Ambient 70 ºC, thermal derating chart | 3 |
| Derated hold current at 85 °C | Ih | | 0.58 | | A | Ambient 85 ºC, thermal derating chart | 3 |
| Peak reflow temperature (TP) | TP | | | 260 | °C | Pb-free reflow; printed as 260 +0/-5°C; do not exceed 260°C | 4 |
| Ramp-up rate to peak | | | | 3 | °C/second | Average ramp-up rate (TL) to peak, Pb-free reflow | 4 |
| Ramp-down rate from peak | | | | 6 | °C/second | Pb-free reflow, ramp-down from peak | 4 |
## CAD (KiCad official)
- Symbol: `SMD1210P110TF`
- Footprint: `Fuse:Fuse_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `smd1210p110tf-etched.step` / `smd1210p110tf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd1210p110tf.step` / `smd1210p110tf.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/8586172564124651520) (7 pp, sha256 `1b912bbc16f34b5c`, 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/smd1210p110tf-datasheet.pdf)