component
SMD1812B020TF
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
markdownSMD1812B020TF
Brightking · Resettable Fuses · 1812
SMD1812B020TF 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 | Ihold | 0.2 | A | 23℃ still air | 1 | ||
| Trip current | Itrip | 0.4 | A | 23℃ still air | 1 | ||
| Maximum voltage | Vmax | 30 | Vdc | at rated current (Imax) | 1 | ||
| Maximum fault current | Imax | 100 | A | at rated voltage (Vmax) | 1 | ||
| Power dissipated in tripped state | Pd | 0.8 | W | tripped state, 23℃ still air | 1 | ||
| Maximum time to trip | 0.02 | s | at 8.00 A fault current | 1 | |||
| Minimum resistance (initial) | Rmin | 0.8 | Ω | initial (un-soldered) state | 1 | ||
| Maximum resistance after trip/reflow | R1max | 5 | Ω | 23℃, one hour after tripping or 260℃ reflow for 20 s | 1 | ||
| Passive aging resistance change | -50 | 50 | % | +85℃, 1000 hours | 9 | ||
| Humidity aging resistance change | -50 | 50 | % | +85℃, 85%RH, 1000 hours | 9 | ||
| Thermal shock resistance change | -50 | % | MIL-STD-202 Method 107G, -40℃/+85℃, 20 times | 9 | |||
| Operating / storage temperature | -40 | 85 | ℃ | operating / storage | 9 | ||
| Maximum device surface temperature in tripped state | 125 | ℃ | tripped state | 9 |
CAD (KiCad official)
- Symbol:
SMD1812B020TF - 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:
smd1812b020tf-etched.step/smd1812b020tf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1812b020tf.step/smd1812b020tf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Brightking datasheet (11 pp, sha256
341444dcfc3f77f4, retrieved 2026-10-14, 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).