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BSMD1210-020-30V

Public Made by Adom

by adom

BHFUSE Resettable Fuses, 1210. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BSMD1210-020-30V

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bsmd1210-020-30v.step / bsmd1210-020-30v.glb are 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, 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