component
BSMD1812-160-24V
Public Made by Adomby adom
BHFUSE Resettable Fuses, 1812. Pinout cross-checked by two models against the datasheet, 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
markdownBSMD1812-160-24V
BHFUSE · Resettable Fuses · 1812
BSMD1812-160-24V from BHFUSE, 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 | Unpolarized PTC terminal pad (pad 1.78±0.1 mm wide on a 3.15±0.1 mm pad length, 3.45±0.1 mm pad spacing); the device is symmetric so the terminals are interchangeable. |
| 2 | 2 | passive | Unpolarized PTC terminal pad (pad 1.78±0.1 mm wide on a 3.15±0.1 mm pad length, 3.45±0.1 mm pad spacing); the device is symmetric so the terminals are interchangeable. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BHFUSE |
| 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 |
|---|---|---|---|---|---|---|---|
| Trip current (minimum) | Itrip | 3.2 | A | 25℃ still air | 2 | ||
| Maximum voltage device can withstand | Vmax | 24 | Vdc | at rated current (Imax) | 2 | ||
| Maximum fault current device can withstand | Imax | 40 | A | at rated voltage (Vmax) | 2 | ||
| Minimum resistance in initial (un-soldered) state | Rmin | 0.03 | Ω | initial (un-soldered) state | 2 | ||
| Maximum resistance at 25℃ after tripping or reflow | R1max | 0.13 | Ω | 25℃, measured one hour after tripping or reflow soldering at 260℃ for 20 sec | 2 | ||
| Ambient operating temperature | -40 | 85 | ℃ | ambient operating conditions | 5 | ||
| Maximum surface temperature in tripped state | 125 | ℃ | device in the tripped state | 5 | |||
| Resistance change, passive aging | -5 | 5 | % | +85℃, 1000 hours; printed as ±5% typical | 5 | ||
| Resistance change, humidity aging | -5 | 5 | % | +85℃, 85% R.H., 168 hours; printed as ±5% typical | 5 | ||
| Resistance change, thermal shock | -33 | 33 | % | +85℃ to -40℃, 20 times; printed as ±33% typical | 5 | ||
| Hold current (25℃ still air) | Ihold | 1.6 | A | 25℃ still air | 2 | ||
| Typical power dissipated in tripped state | Pd typ. | 1 | W | tripped state, 25℃ still air | 2 | ||
| Time to trip | 1 | Sec | at 8.00 A test current | 2 | |||
| Hold current vs ambient temperature | Ihold | 2.3 | A | ambient temperature -40℃ | 5 | ||
| Hold current vs ambient temperature | Ihold | 2.05 | A | ambient temperature -20℃ | 5 | ||
| Hold current vs ambient temperature | Ihold | 1.88 | A | ambient temperature 0℃ | 5 | ||
| Hold current vs ambient temperature | Ihold | 1.6 | A | ambient temperature 25℃ | 5 | ||
| Hold current vs ambient temperature | Ihold | 1.26 | A | ambient temperature 40℃ | 5 | ||
| Hold current vs ambient temperature | Ihold | 1.12 | A | ambient temperature 50℃ | 5 | ||
| Hold current vs ambient temperature | Ihold | 0.98 | A | ambient temperature 60℃ | 5 | ||
| Hold current vs ambient temperature | Ihold | 0.84 | A | ambient temperature 70℃ | 5 | ||
| Hold current vs ambient temperature | Ihold | 0.63 | A | ambient temperature 85℃ | 5 |
CAD (KiCad official)
- Symbol:
BSMD1812-160-24V - 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:
bsmd1812-160-24v-etched.step/bsmd1812-160-24v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bsmd1812-160-24v.step/bsmd1812-160-24v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BHFUSE datasheet (10 pp, sha256
a7f7e8936d26d547, 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).