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SMD0603-004C-24V

BNstar · Resettable Fuses · 0603

SMD0603-004C-24V from BNstar, in a 0603. 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 (end electrode); rated for 0.04 A hold / 0.12 A trip current at 25℃ and Vmax 24.0 V, Imax 20 A.
2 2 passive Other terminal of the non-polarized PTC device (end electrode); rated for 0.04 A hold / 0.12 A trip current at 25℃ and Vmax 24.0 V, Imax 20 A.

Key specifications

Parameter Value
Manufacturer BNstar
Package 0603
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
Minimum resistance, initial un-soldered state (Rmin) Rmin 3.7 Ω initial (un-soldered) state 1
Maximum resistance at 25℃ one hour after reflow (R1max) R1max 40 Ω 25℃, measured one hour after reflow soldering of 260℃ for 20 sec 1
Maximum continuous voltage (Vmax) Vmax 24 V at rated current 1
Maximum fault current (Imax) Imax 20 A at rated voltage, 25℃ 1
Maximum time to trip (Ttrip) Ttrip 1 s at trip current 0.20 A 1
Recommended storage temperature 40 ℃ recommended storage conditions 2
Recommended storage relative humidity 70 % R.H. recommended storage conditions, 40°C max 2
Reflow soldering temperature 260 ℃ reflow soldering for 20 sec 2
Hold current (IH) IH 0.04 A 25℃ still air 1
Trip current (IT) IT 0.12 A 25℃ still air 1
Typical power dissipation (Pdtyp) Pdtyp 0.5 W typical, in air environment 1

CAD (KiCad official)

  • Symbol: SMD0603-004C-24V
  • Footprint: Fuse:Fuse_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: smd0603-004c-24v-etched.step / smd0603-004c-24v-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smd0603-004c-24v.step / smd0603-004c-24v.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: BNstar datasheet (3 pp, sha256 18158ca70e296e3f, retrieved 2026-10-17, 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