component
SMD1812-250
Public Made by Adomby adom
BORN Resettable Fuses, 1812. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 7d ago |
| viewers | 7d ago |
| package.json | 7d ago |
| page.json | 7d ago |
| README.md | 7d ago |
| smd1812-250-etched.glb | 7d ago |
| smd1812-250-etched.step | 7d ago |
| smd1812-250-hero.glb | 7d ago |
| smd1812-250-hero.overlay.json | 7d ago |
| smd1812-250.glb | 7d ago |
| smd1812-250.kicad_mod | 7d ago |
| smd1812-250.kicad_sym | 7d ago |
| smd1812-250.lbr | 7d ago |
| smd1812-250.step | 7d ago |
SMD1812-250
BORN · Resettable Fuses · 1812
SMD1812-250 from BORN, 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 the non-polarized resettable PPTC fuse (SMD1812-250: I-hold 2.50 A, I-trip 5.00 A, Vmax 8 Vdc at Imax 100 A); either end terminal may be used as the input. |
| 2 | 2 | passive | Terminal 2 of the non-polarized resettable PPTC fuse (SMD1812-250: I-hold 2.50 A, I-trip 5.00 A, Vmax 8 Vdc at Imax 100 A); either end terminal may be used as the input. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| 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 does not trip at 25 °C still air) | I-hold | 2.5 | A | 25 °C still air | 2 | ||
| Trip current (minimum current that trips at 25 °C still air) | I-trip | 5 | A | 25 °C still air | 2 | ||
| Minimum resistance in initial un-soldered state | R0 | 0.015 | Ohm | initial un-soldered state | 2 | ||
| Maximum resistance at 25 °C one hour after tripping or 260 °C reflow for 20 s | R1 | 0.075 | Ohm | 25 °C, one hour after trip or reflow | 2 | ||
| Maximum fault current withstood at rated voltage (Vmax) | Imax | 100 | A | at rated voltage Vmax | 2 | ||
| Maximum time to trip | 5 | Sec. | at 8.00 A, 25 °C | 2 | |||
| Maximum device surface temperature in tripped state | 125 | °C | tripped state | 3 | |||
| Operating temperature range | -40 | 85 | °C | 3 | |||
| Passive aging resistance change | -5 | 5 | % | +85 °C, 1000 hours | 3 | ||
| Humidity aging resistance change | -5 | 5 | % | +85 °C, 85 % R.H., 1000 hours | 3 | ||
| Thermal shock resistance change (typical) | -30 | % | MIL-STD-202 Method 107, +85 °C to -40 °C, 20 cycles | 3 | |||
| Recommended hold current at ambient -40 °C | 3.27 | A | ambient -40 °C | 4 | |||
| Recommended hold current at ambient 85 °C | 1.57 | A | ambient 85 °C | 4 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | Copper | tin | Terminal Material Tin-Plated Nickle-Copper (Solder Material: | 7 |
CAD (KiCad official)
- Symbol:
SMD1812-250 - 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:
smd1812-250-etched.step/smd1812-250-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1812-250.step/smd1812-250.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BORN datasheet (8 pp, sha256
45b47bf27b785b39, 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).