component
ASMD1812-350
Public Made by Adomby adom
Shenzhen JDT Fuse 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.
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ASMD1812-350
Shenzhen JDT Fuse · Resettable Fuses · 1812
ASMD1812-350 from Shenzhen JDT Fuse, 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 | Shenzhen JDT Fuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Minimum trip current (I trip) at 25°C still air | I trip | 6 | A | 25°C still air; minimum current at which device always trips | 3 | ||
| Minimum device resistance prior to tripping at 25°C | Ri min | 0.008 | Ω | 25°C, prior to tripping | 3 | ||
| Maximum device resistance one hour post reflow | R1max | 0.035 | Ω | measured one hour post reflow | 3 | ||
| Maximum operating voltage (V max) | V max | 6 | V dc | at rated current Imax | 3 | ||
| Maximum fault current (I max) | I max | 100 | A | at rated voltage V max | 3 | ||
| Maximum hold current (I hold) at 25°C | I hold | 3.5 | A | 25°C still air; maximum current device will not trip | 3 | ||
| Maximum time to trip | 4 | s | at 10.0 A fault current (Maximum Time To Trip Current column) | 3 | |||
| Power dissipation in tripped state (Pd) | Pd | 0.8 | W | tripped state, 25°C still air, at rated voltage | 3 | ||
| Ambient operating temperature | -40 | 85 | °C | ambient operating conditions (series rating) | 4 | ||
| Maximum surface temperature in tripped state | 125 | °C | device in tripped state | 4 | |||
| Resistance change, passive aging | -5 | 5 | % | +85°C, 1000 hrs; typical (series) | 4 | ||
| Resistance change, humidity aging | -5 | 5 | % | +85°C, 85% R.H., 168 hours; typical (series) | 4 | ||
| Resistance change, thermal shock | -33 | 33 | % | +85°C to -40°C, 20 times; typical (series) | 4 | ||
| Peak reflow temperature (Tp) | Tp | 260 | °C | Pb-free reflow profile | 6 |
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 pad materials：Tin-plated Nickel-Copper | 6 |
CAD (KiCad official)
- Symbol:
ASMD1812-350 - 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:
asmd1812-350-etched.step/asmd1812-350-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);asmd1812-350.step/asmd1812-350.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen JDT Fuse datasheet (10 pp, sha256
9a262a458868b11e, retrieved 2026-10-18, 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).
# ASMD1812-350
**Shenzhen JDT Fuse** · Resettable Fuses · 1812
ASMD1812-350 from Shenzhen JDT Fuse, 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 | Shenzhen JDT Fuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Minimum trip current (I trip) at 25°C still air | I trip | 6 | | | A | 25°C still air; minimum current at which device always trips | 3 |
| Minimum device resistance prior to tripping at 25°C | Ri min | 0.008 | | | Ω | 25°C, prior to tripping | 3 |
| Maximum device resistance one hour post reflow | R1max | | | 0.035 | Ω | measured one hour post reflow | 3 |
| Maximum operating voltage (V max) | V max | | | 6 | V dc | at rated current Imax | 3 |
| Maximum fault current (I max) | I max | | | 100 | A | at rated voltage V max | 3 |
| Maximum hold current (I hold) at 25°C | I hold | | | 3.5 | A | 25°C still air; maximum current device will not trip | 3 |
| Maximum time to trip | | | | 4 | s | at 10.0 A fault current (Maximum Time To Trip Current column) | 3 |
| Power dissipation in tripped state (Pd) | Pd | | 0.8 | | W | tripped state, 25°C still air, at rated voltage | 3 |
| Ambient operating temperature | | -40 | | 85 | °C | ambient operating conditions (series rating) | 4 |
| Maximum surface temperature in tripped state | | | | 125 | °C | device in tripped state | 4 |
| Resistance change, passive aging | | -5 | | 5 | % | +85°C, 1000 hrs; typical (series) | 4 |
| Resistance change, humidity aging | | -5 | | 5 | % | +85°C, 85% R.H., 168 hours; typical (series) | 4 |
| Resistance change, thermal shock | | -33 | | 33 | % | +85°C to -40°C, 20 times; typical (series) | 4 |
| Peak reflow temperature (Tp) | Tp | | | 260 | °C | Pb-free reflow profile | 6 |
## 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 pad materials：Tin-plated Nickel-Copper | 6 |
## CAD (KiCad official)
- Symbol: `ASMD1812-350`
- 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: `asmd1812-350-etched.step` / `asmd1812-350-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `asmd1812-350.step` / `asmd1812-350.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shenzhen JDT Fuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899522185871360) (10 pp, sha256 `9a262a458868b11e`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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).
[Datasheet PDF](docs/asmd1812-350-datasheet.pdf)