component
SMD1812B260TF
Public Made by Adomby adom
Brightking Resettable Fuses, 1812. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSMD1812B260TF
Brightking · Resettable Fuses · 1812
SMD1812B260TF from Brightking, in a 1812. 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 | Brightking |
| Package | 1812 |
| 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 (max current without tripping) | Ihold | 2.6 | A | 23°C still air | 2 | ||
| Trip current (min current that trips) | Itrip | 5 | A | 23°C still air | 2 | ||
| Maximum voltage (Vmax) | Vmax | 8 | Vdc | Voltage withstood without damage at rated current (Imax) | 2 | ||
| Maximum fault current (Imax) | Imax | 100 | A | Fault current withstood without damage at rated voltage (Vmax) | 2 | ||
| Minimum resistance (Rmin) | Rmin | 0.015 | Ω | Initial un-soldered state | 2 | ||
| Maximum resistance after trip or reflow (R1max) | R1max | 0.047 | Ω | 23°C, measured one hour after tripping or reflow soldering at 260°C for 20 s | 2 | ||
| Maximum time to trip | 2.5 | s | At 8.00 A | 2 | |||
| Power dissipated in tripped state (Pd) | Pd | 0.8 | W | Tripped state, 23°C still air | 2 | ||
| Operating / storage temperature | -40 | 85 | °C | Operating / storage, printed for the SMD1812 series | 9 | ||
| Maximum device surface temperature in tripped state | 125 | °C | Tripped state | 9 | |||
| Resistance change after passive aging | -50 | 50 | % | Passive aging at +85°C, 1000 hours; typical resistance change | 9 | ||
| Resistance change after humidity aging | -50 | 50 | % | Humidity aging at +85°C, 85%R.H., 1000 hours; typical resistance change | 9 | ||
| Recommended hold current at ambient | 3.4 | A | Ambient -40°C (derating table) | 5 | |||
| Recommended hold current at ambient | 1.63 | A | Ambient 85°C (derating table) | 5 |
CAD (KiCad official)
- Symbol:
SMD1812B260TF - Footprint:
Fuse:Fuse_1812_4532Metric - 3D model: 1812, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal 1806 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
smd1812b260tf-etched.step/smd1812b260tf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1812b260tf.step/smd1812b260tf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Brightking datasheet (11 pp, sha256
341444dcfc3f77f4, retrieved 2026-10-15, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).