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SMD1812-150C-6V
Public Made by Adomby adom
BNstar Resettable Fuses, 1812. Pinout cross-checked by two models against the datasheet, 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
markdownSMD1812-150C-6V
BNstar · Resettable Fuses · 1812
SMD1812-150C-6V 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 | One non-polarized terminal of the resettable PTC fuse (hold 1.5 A, trip 3.0 A at 25°C, Vmax 6.0 V, Imax 50 A, R1max 0.180 Ω). |
| 2 | 2 | passive | Second non-polarized terminal of the resettable PTC fuse (hold 1.5 A, trip 3.0 A at 25°C, Vmax 6.0 V, Imax 50 A, Rmin 0.040 Ω). |
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 (maximum current that will not trip at 25℃) | IH | 1.5 | A | 25℃, still air, reflow 260℃ for 20 s | 1 | ||
| Trip current (minimum current that always trips at 25℃) | IT | 3 | A | 25℃, still air, reflow 260℃ for 20 s | 1 | ||
| Maximum continuous voltage (Vmax) | Vmax | 6 | V | at rated current | 1 | ||
| Maximum fault current (Imax) | Imax | 50 | A | at rated voltage | 1 | ||
| Minimum resistance in initial (un-soldered) state (Rmin) | Rmin | 0.04 | Ω | initial (un-soldered) state | 1 | ||
| Maximum resistance at 25℃ one hour after reflow (R1max) | R1max | 0.18 | Ω | 25℃, measured one hour after reflow soldering 260℃ for 20 s | 1 | ||
| Maximum time to trip (Ttrip) | Ttrip | 0.5 | s | at assigned trip current 8.0 A (column mapping inferred) | 1 | ||
| Typical power dissipation (Pdtyp) | Pdtyp | 1 | W | when in state, air environment | 1 | ||
| Recommended storage temperature (maximum) | 40 | ℃ | recommended storage conditions | 2 | |||
| Recommended storage relative humidity (maximum) | 70 | %R.H. | recommended storage conditions | 2 | |||
| Maximum ambient operating temperature range | -40 | 85 | ℃ | range of thermal derating table | 2 |
CAD (KiCad official)
- Symbol:
SMD1812-150C-6V - 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:
smd1812-150c-6v-etched.step/smd1812-150c-6v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1812-150c-6v.step/smd1812-150c-6v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BNstar datasheet (3 pp, sha256
e1859484be5ae290, retrieved 2026-10-18, 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).