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SMD1812-150C-24V
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-24V
BNstar · Resettable Fuses · 1812
SMD1812-150C-24V 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 | Non-polarized PTC terminal (one end cap of the 1812 body); device is rated 1.5 A hold, 3.0 A trip, 24.0 V max, 50 A max fault current. |
| 2 | 2 | passive | Non-polarized PTC terminal (opposite end cap of the 1812 body); device is rated 1.5 A hold, 3.0 A trip, 24.0 V max, 50 A max fault current. |
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 | 1.5 | A | 25℃ still air | 1 | ||
| Trip current | IT | 3 | A | 25℃ still air | 1 | ||
| Maximum continuous voltage (rated voltage) | Vmax | 24 | V | at rated current | 1 | ||
| Maximum fault current | Imax | 50 | A | at rated voltage | 1 | ||
| Maximum time to trip | Ttrip | 0.5 | s | at 8.0 A assigned trip current, reflow 260℃ 20 s | 1 | ||
| Minimum resistance (initial, un-soldered) | Rmin | 0.04 | Ω | initial (un-soldered) state | 1 | ||
| Maximum resistance at 25℃ | R1max | 0.16 | Ω | 25℃, measured one hour after reflow soldering 260℃ for 20 sec | 1 | ||
| Dimension A | A | 4.37 | 4.73 | mm | 1 | ||
| Dimension B | B | 3.07 | 3.41 | mm | 1 | ||
| Dimension C | C | 0.5 | 1.2 | mm | 1 | ||
| Dimension D | D | 0.3 | mm | 1 | |||
| Dimension E | E | 0.25 | mm | 1 | |||
| Recommended storage temperature | 40 | ℃ | recommended storage conditions, 70% R.H. max | 2 | |||
| Recommended storage humidity | 70 | % R.H. | recommended storage conditions, 40℃ max | 2 | |||
| Typical power dissipation | Pdtyp | 1 | W | device in tripped state, still air environment | 1 |
CAD (KiCad official)
- Symbol:
SMD1812-150C-24V - 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-24v-etched.step/smd1812-150c-24v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1812-150c-24v.step/smd1812-150c-24v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BNstar datasheet (3 pp, sha256
8f6f8290e32c4f11, 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).