component
SMD1812-300C-30V
Public Made by Adomby adom
BNstar 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.
Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 25d ago |
| viewers | 25d ago |
| package.json | 23d ago |
| page.json | 23d ago |
| README.md | 25d ago |
| smd1812-300c-30v-etched.glb | 23d ago |
| smd1812-300c-30v-etched.step | 23d ago |
| smd1812-300c-30v-hero.glb | 23d ago |
| smd1812-300c-30v-hero.overlay.json | 23d ago |
| smd1812-300c-30v.glb | 23d ago |
| smd1812-300c-30v.kicad_mod | 25d ago |
| smd1812-300c-30v.kicad_sym | 11d ago |
| smd1812-300c-30v.lbr | 11d ago |
| smd1812-300c-30v.step | 23d ago |
SMD1812-300C-30V
BNstar · Resettable Fuses · 1812
SMD1812-300C-30V from BNstar, 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 | BNstar |
| 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 | IH | 3 | A | 25℃ still air, reflow 260℃ for 20 s; defined as maximum current at which device will not trip | 1 | ||
| Trip current | IT | 6 | A | 25℃ still air, reflow 260℃ for 20 s; defined as minimum current at which device will always trip | 1 | ||
| Maximum continuous voltage | Vmax | 30 | V | Continuous voltage at rated current | 1 | ||
| Maximum fault current | Imax | 50 | A | At rated voltage | 1 | ||
| Maximum time to trip | Ttrip | 4 | s | 25℃; at assigned trip current 8.0 A | 1 | ||
| Minimum resistance (initial, un-soldered) | Rmin | 0.01 | Ω | 25℃; initial un-soldered state | 1 | ||
| Maximum resistance one hour after reflow | R1max | 0.06 | Ω | 25℃; measured one hour after reflow soldering of 260℃ for 20 s | 1 | ||
| Typical power dissipation | Pdtyp | 0.8 | W | In still air environment | 1 |
CAD (KiCad official)
- Symbol:
SMD1812-300C-30V - 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:
smd1812-300c-30v-etched.step/smd1812-300c-30v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1812-300c-30v.step/smd1812-300c-30v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BNstar datasheet (3 pp, sha256
9fef407dbc32b263, 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).