component
ASMD1812-014
Public Made by Adomby adom
Shenzhen JDT Fuse Resettable Fuses, 1812. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
ASMD1812-014
Shenzhen JDT Fuse · Resettable Fuses · 1812
ASMD1812-014 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 | One terminal pad of the non-polarized PTC (tin-plated nickel-copper); series element in the protected line, ASMD1812-014 is rated Ihold 0.14 A, Itrip 0.34 A, Vmax 60 V dc, Imax 100 A. |
| 2 | 2 | passive | Other terminal pad of the non-polarized PTC (tin-plated nickel-copper); interchangeable with the opposite pad, with a maximum surface temperature of 125 °C when tripped. |
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 |
|---|---|---|---|---|---|---|---|
| Maximum operating voltage | V max | 60 | V dc | at rated current (Imax) | 3 | ||
| Maximum fault current | I max | 100 | A | at rated voltage (Vmax) | 3 | ||
| Hold current | I hold | 0.14 | A | 25°C still air; maximum current device will not trip | 3 | ||
| Trip current | I trip | 0.34 | A | 25°C still air; minimum current at which device will always trip | 3 | ||
| Power dissipation in tripped state | Pd | 0.8 | W | tripped state, 25°C still air, at rated voltage | 3 | ||
| Minimum device resistance prior to tripping | Ri min | 0.65 | Ω | 25°C | 3 | ||
| Maximum device resistance one hour post reflow | R1max | 6 | Ω | measured one hour post reflow | 3 | ||
| Passive aging resistance change | -5 | 5 | % | +85°C, 1000 hrs; typical | 4 | ||
| Humidity aging resistance change | -5 | 5 | % | +85°C, 85% R.H., 168 hours; typical | 4 | ||
| Thermal shock resistance change | -33 | 33 | % | +85°C to -40°C, 20 times; typical | 4 | ||
| Ambient operating temperature | -40 | 85 | °C | ambient operating conditions | 4 | ||
| Maximum surface temperature in tripped state | 125 | °C | tripped state | 4 | |||
| Storage temperature | 40 | °C | storage, 70% R.H. max | 8 |
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:
ASMD1812-014 - 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:
asmd1812-014-etched.step/asmd1812-014-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);asmd1812-014.step/asmd1812-014.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 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).
# ASMD1812-014
**Shenzhen JDT Fuse** · Resettable Fuses · 1812
ASMD1812-014 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 | One terminal pad of the non-polarized PTC (tin-plated nickel-copper); series element in the protected line, ASMD1812-014 is rated Ihold 0.14 A, Itrip 0.34 A, Vmax 60 V dc, Imax 100 A. |
| 2 | 2 | passive | Other terminal pad of the non-polarized PTC (tin-plated nickel-copper); interchangeable with the opposite pad, with a maximum surface temperature of 125 °C when tripped. |
## 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 |
|---|---|---|---|---|---|---|---|
| Maximum operating voltage | V max | | | 60 | V dc | at rated current (Imax) | 3 |
| Maximum fault current | I max | | | 100 | A | at rated voltage (Vmax) | 3 |
| Hold current | I hold | | | 0.14 | A | 25°C still air; maximum current device will not trip | 3 |
| Trip current | I trip | 0.34 | | | A | 25°C still air; minimum current at which device will always trip | 3 |
| Power dissipation in tripped state | Pd | | 0.8 | | W | tripped state, 25°C still air, at rated voltage | 3 |
| Minimum device resistance prior to tripping | Ri min | 0.65 | | | Ω | 25°C | 3 |
| Maximum device resistance one hour post reflow | R1max | | | 6 | Ω | measured one hour post reflow | 3 |
| Passive aging resistance change | | -5 | | 5 | % | +85°C, 1000 hrs; typical | 4 |
| Humidity aging resistance change | | -5 | | 5 | % | +85°C, 85% R.H., 168 hours; typical | 4 |
| Thermal shock resistance change | | -33 | | 33 | % | +85°C to -40°C, 20 times; typical | 4 |
| Ambient operating temperature | | -40 | | 85 | °C | ambient operating conditions | 4 |
| Maximum surface temperature in tripped state | | | | 125 | °C | tripped state | 4 |
| Storage temperature | | | | 40 | °C | storage, 70% R.H. max | 8 |
## 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: `ASMD1812-014`
- 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: `asmd1812-014-etched.step` / `asmd1812-014-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `asmd1812-014.step` / `asmd1812-014.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/8588899520990494720) (10 pp, sha256 `9a262a458868b11e`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/asmd1812-014-datasheet.pdf)