component
SRF1812P300
Public Made by Adomby adom
prosemi 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.
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
markdownSRF1812P300
prosemi · Resettable Fuses · 1812
SRF1812P300 from prosemi, 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 | prosemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum continuous voltage (rated voltage) | Vmax | 16 | V | at rated current | 1 | ||
| Maximum fault current | Imax | 100 | A | at rated voltage | 1 | ||
| Maximum time to trip | Ttrip | 4 | s | at I = 8.00 A assigned current | 1 | ||
| Minimum resistance (initial, un-soldered state) | Rmin | 0.01 | Ω | initial (un-soldered) state | 1 | ||
| Maximum resistance at 25℃ one hour after reflow | R1max | 0.04 | Ω | 25℃, measured one hour after reflow | 1 | ||
| Hold current | IH | 3 | A | 25℃ still air | 1 | ||
| Trip current | IT | 6 | A | 25℃ still air | 1 | ||
| Typical power dissipation | Pd | 0.8 | W | device in still air environment | 1 | ||
| Hold current derating vs ambient temperature | IH | 4.15 | A | ambient temperature -40°C | 1 | ||
| Hold current derating vs ambient temperature | IH | 3.76 | A | ambient temperature -20°C | 1 | ||
| Hold current derating vs ambient temperature | IH | 3.46 | A | ambient temperature 0°C | 1 | ||
| Hold current derating vs ambient temperature | IH | 3 | A | ambient temperature 25°C | 1 | ||
| Hold current derating vs ambient temperature | IH | 2.55 | A | ambient temperature 40°C | 1 | ||
| Hold current derating vs ambient temperature | IH | 2.28 | A | ambient temperature 50°C | 1 | ||
| Hold current derating vs ambient temperature | IH | 2.01 | A | ambient temperature 60°C | 1 | ||
| Hold current derating vs ambient temperature | IH | 1.61 | A | ambient temperature 70°C | 1 | ||
| Hold current derating vs ambient temperature | IH | 1.33 | A | ambient temperature 85°C | 1 |
CAD (KiCad official)
- Symbol:
SRF1812P300 - 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:
srf1812p300-etched.step/srf1812p300-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);srf1812p300.step/srf1812p300.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: prosemi datasheet (3 pp, sha256
2f81d5db4fb9e72f, retrieved 2026-10-15, 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).