component
ASMD1812-150-12V
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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ASMD1812-150-12V
Shenzhen JDT Fuse · Resettable Fuses · 1812
ASMD1812-150-12V 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 |
|---|---|---|---|---|---|---|---|
| Resistance before tripping (minimum), 25°C | Ri min | 0.04 | Ω | 25°C, prior to tripping | 3 | ||
| Maximum resistance, one hour post reflow | R1max | 0.16 | Ω | Measured one hour post reflow | 3 | ||
| Maximum operating voltage | V max | 12 | V dc | At rated current (Imax) | 3 | ||
| Maximum fault current | I max | 100 | A | At rated voltage (Vmax) | 3 | ||
| Hold current (maximum current that will not trip) | I hold | 1.5 | A | @25°C, still air | 3 | ||
| Trip current (minimum current that always trips) | I trip | 3 | A | @25°C, still air | 3 | ||
| Maximum time to trip | 0.5 | Sec | At 8.0 A current | 3 | |||
| Resistance change, passive aging (typical) | -5 | 5 | % | +85°C, 1000 hrs | 4 | ||
| Resistance change, humidity aging (typical) | -5 | 5 | % | +85°C, 85% R.H., 168 hours | 4 | ||
| Resistance change, thermal shock (typical) | -33 | 33 | % | +85°C to -40°C, 20 times | 4 | ||
| Ambient operating temperature | -40 | 85 | °C | 4 | |||
| Maximum surface temperature in tripped state | 125 | °C | Device in tripped state | 4 | |||
| Storage temperature | 0 | 35 | °C | Storage conditions | 6 | ||
| Storage relative humidity | 30 | 60 | %R.H. | Storage conditions | 6 | ||
| Peak temperature (Tp), Pb-free assembly | Tp | 260 | °C | Pb-free reflow profile | 6 | ||
| Preheat temperature (Ts min) | Ts min | 150 | °C | Pb-free reflow preheat | 6 | ||
| Preheat temperature (Ts max) | Ts max | 200 | °C | Pb-free reflow preheat | 6 | ||
| Preheat time (Ts min to Ts max) | 60 | 180 | seconds | Pb-free reflow preheat | 6 | ||
| Time maintained above TL | tL | 60 | 150 | seconds | Above TL = 217°C | 6 | |
| Ramp-up rate (Ts max to Tp) | 3 | °C/second | Pb-free reflow | 6 | |||
| Ramp-down rate | 6 | °C/second | Pb-free reflow | 6 | |||
| Time from 25°C to peak temperature | 8 | minutes | Pb-free reflow | 6 | |||
| Power dissipation in tripped state | Pd | 0.8 | W | Tripped state, 25°C still air, at rated voltage | 3 |
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:
ASMD1812-150-12V - 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:
asmd1812-150-12v-etched.step/asmd1812-150-12v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);asmd1812-150-12v.step/asmd1812-150-12v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen JDT Fuse datasheet (10 pp, sha256
a80f799a9f6d7a60, 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).
# ASMD1812-150-12V
**Shenzhen JDT Fuse** · Resettable Fuses · 1812
ASMD1812-150-12V 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 |
|---|---|---|---|---|---|---|---|
| Resistance before tripping (minimum), 25°C | Ri min | 0.04 | | | Ω | 25°C, prior to tripping | 3 |
| Maximum resistance, one hour post reflow | R1max | | | 0.16 | Ω | Measured one hour post reflow | 3 |
| Maximum operating voltage | V max | | | 12 | V dc | At rated current (Imax) | 3 |
| Maximum fault current | I max | | | 100 | A | At rated voltage (Vmax) | 3 |
| Hold current (maximum current that will not trip) | I hold | | | 1.5 | A | @25°C, still air | 3 |
| Trip current (minimum current that always trips) | I trip | 3 | | | A | @25°C, still air | 3 |
| Maximum time to trip | | | | 0.5 | Sec | At 8.0 A current | 3 |
| Resistance change, passive aging (typical) | | -5 | | 5 | % | +85°C, 1000 hrs | 4 |
| Resistance change, humidity aging (typical) | | -5 | | 5 | % | +85°C, 85% R.H., 168 hours | 4 |
| Resistance change, thermal shock (typical) | | -33 | | 33 | % | +85°C to -40°C, 20 times | 4 |
| Ambient operating temperature | | -40 | | 85 | °C | | 4 |
| Maximum surface temperature in tripped state | | | | 125 | °C | Device in tripped state | 4 |
| Storage temperature | | 0 | | 35 | °C | Storage conditions | 6 |
| Storage relative humidity | | 30 | | 60 | %R.H. | Storage conditions | 6 |
| Peak temperature (Tp), Pb-free assembly | Tp | | | 260 | °C | Pb-free reflow profile | 6 |
| Preheat temperature (Ts min) | Ts min | 150 | | | °C | Pb-free reflow preheat | 6 |
| Preheat temperature (Ts max) | Ts max | | | 200 | °C | Pb-free reflow preheat | 6 |
| Preheat time (Ts min to Ts max) | | 60 | | 180 | seconds | Pb-free reflow preheat | 6 |
| Time maintained above TL | tL | 60 | | 150 | seconds | Above TL = 217°C | 6 |
| Ramp-up rate (Ts max to Tp) | | | | 3 | °C/second | Pb-free reflow | 6 |
| Ramp-down rate | | | | 6 | °C/second | Pb-free reflow | 6 |
| Time from 25°C to peak temperature | | | | 8 | minutes | Pb-free reflow | 6 |
| Power dissipation in tripped state | Pd | | 0.8 | | W | Tripped state, 25°C still air, at rated voltage | 3 |
## 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: `ASMD1812-150-12V`
- 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: `asmd1812-150-12v-etched.step` / `asmd1812-150-12v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `asmd1812-150-12v.step` / `asmd1812-150-12v.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/8590920341974315008) (10 pp, sha256 `a80f799a9f6d7a60`, 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/asmd1812-150-12v-datasheet.pdf)