component
SMD1812-075-24
Public Made by Adomby adom
hongjiacheng 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 |
|---|---|
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| viewers | 20d ago |
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| page.json | 20d ago |
| README.md | 20d ago |
| smd1812-075-24-etched.glb | 20d ago |
| smd1812-075-24-etched.step | 20d ago |
| smd1812-075-24-hero.glb | 20d ago |
| smd1812-075-24-hero.overlay.json | 20d ago |
| smd1812-075-24.glb | 20d ago |
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| smd1812-075-24.lbr | 20d ago |
| smd1812-075-24.step | 20d ago |
SMD1812-075-24
hongjiacheng · Resettable Fuses · 1812
SMD1812-075-24 from hongjiacheng, 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 | First terminal of the non-polarized PPTC device (Ihold 0.75 A, Itrip 1.5 A, Vmax 24 V, Imax 40 A); the drawing shows two end terminals with no polarity, so terminals are interchangeable. |
| 2 | 2 | passive | Second terminal of the non-polarized PPTC device (Ihold 0.75 A, Itrip 1.5 A, Vmax 24 V, Imax 40 A); the drawing shows two end terminals with no polarity, so terminals are interchangeable. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| 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) | Ihold | 0.75 | A | 25℃ still air (maximum current passed without tripping) | 2 | ||
| Trip current (Itrip) | Itrip | 1.5 | A | 25℃ still air (minimum current at which device trips) | 2 | ||
| Maximum voltage (Vmax) | Vmax | 24 | V | At rated current (Imax) | 2 | ||
| Maximum fault current (Imax) | Imax | 40 | A | At rated voltage (Vmax) | 2 | ||
| Power dissipated in tripped state (Pd typ.) | Pd | 0.8 | W | Tripped state, 25℃ still air | 2 | ||
| Maximum time-to-trip | 8 | Sec | 2 | ||||
| Minimum resistance, initial state (Ri min) | Ri | 0.2 | Ω | Initial (un-soldered) state | 2 | ||
| Maximum resistance at 25℃ after trip or reflow (R1 max) | R1 | 0.45 | Ω | 25℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec | 2 | ||
| Operating / storage temperature | -40 | 85 | ℃ | 5 | |||
| Maximum device surface temperature in tripped state | 125 | ℃ | Tripped state | 5 | |||
| Peak reflow temperature (TP) | TP | 260 | ℃ | Printed as +260(+0/-5)℃; Pb-free assembly reflow profile | 1 |
CAD (KiCad official)
- Symbol:
SMD1812-075-24 - 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:
smd1812-075-24-etched.step/smd1812-075-24-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1812-075-24.step/smd1812-075-24.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: hongjiacheng datasheet (6 pp, sha256
8ab1f213bc6d6cd2, retrieved 2026-10-19, 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).