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BSMD1210-020-30V
Public Made by Adomby adom
BHFUSE Resettable Fuses, 1210. 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
markdownBSMD1210-020-30V
BHFUSE · Resettable Fuses · 1210
BSMD1210-020-30V from BHFUSE, in a 1210. 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 of the non-polarized PTC device (Ihold 0.20 A, Itrip 0.40 A, Vmax 30 Vdc, Imax 40 A); the two terminals are interchangeable. |
| 2 | 2 | passive | Second terminal of the non-polarized PTC device (Ihold 0.20 A, Itrip 0.40 A, Vmax 30 Vdc, Imax 40 A); the two terminals are interchangeable. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BHFUSE |
| Package | 1210 |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current (max current without tripping, 25℃ still air) | Ihold | 0.2 | A | 25℃ still air | 1 | ||
| Trip current (min current at which device trips) | Itrip | 0.4 | A | 25℃ still air | 1 | ||
| Maximum voltage device can withstand without damage at rated current | Vmax | 30 | Vdc | At rated current (Imax) | 1 | ||
| Maximum fault current device can withstand without damage | Imax | 40 | A | At rated voltage (Vmax) | 1 | ||
| Minimum resistance in initial (un-soldered) state | Rmin | 0.4 | Ω | Initial un-soldered state | 1 | ||
| Maximum resistance at 25℃ one hour after tripping or reflow | R1max | 5 | Ω | 25℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec | 1 | ||
| Passive aging resistance change | -5 | 5 | % | +85℃, 1000 hrs; typical | 4 | ||
| Humidity aging resistance change | -5 | 5 | % | +85℃, 85% R.H., 168 hours; typical | 4 | ||
| Thermal shock resistance change | -33 | 33 | % | +85℃ to -40℃, 20 times; typical | 4 | ||
| Ambient operating temperature | -40 | 85 | °C | Ambient operating conditions | 4 | ||
| Maximum surface temperature in tripped state | 125 | °C | Device in tripped state | 4 | |||
| Typical power dissipated in tripped state | Pd typ | 0.6 | W | Tripped state, 25℃ still air | 1 | ||
| Time to trip | 0.02 | s | Test current 8.00 A | 1 | |||
| Hold current derating at ambient temperature -40℃ | Ihold | 0.29 | A | Ambient temperature -40℃ | 4 | ||
| Hold current derating at ambient temperature -20℃ | Ihold | 0.26 | A | Ambient temperature -20℃ | 4 | ||
| Hold current derating at ambient temperature 0℃ | Ihold | 0.22 | A | Ambient temperature 0℃ | 4 | ||
| Hold current derating at ambient temperature 25℃ | Ihold | 0.2 | A | Ambient temperature 25℃ | 4 | ||
| Hold current derating at ambient temperature 40℃ | Ihold | 0.16 | A | Ambient temperature 40℃ | 4 | ||
| Hold current derating at ambient temperature 50℃ | Ihold | 0.14 | A | Ambient temperature 50℃ | 4 | ||
| Hold current derating at ambient temperature 60℃ | Ihold | 0.13 | A | Ambient temperature 60℃ | 4 | ||
| Hold current derating at ambient temperature 70℃ | Ihold | 0.11 | A | Ambient temperature 70℃ | 4 | ||
| Hold current derating at ambient temperature 85℃ | Ihold | 0.08 | A | Ambient temperature 85℃ | 4 |
CAD (KiCad official)
- Symbol:
BSMD1210-020-30V - Footprint:
Fuse:Fuse_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
bsmd1210-020-30v-etched.step/bsmd1210-020-30v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bsmd1210-020-30v.step/bsmd1210-020-30v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BHFUSE datasheet (7 pp, sha256
5c6e439fe5a34d2c, retrieved 2026-10-16, 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).