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Contents

README

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SMD0603B035TF

Brightking · Resettable Fuses · 0603

SMD0603B035TF from Brightking, 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 Non-polarized PTC terminal (solder-plated copper, matte tin) of the SMD0603B035TF, rated Ihold 0.35 A, Itrip 0.75 A, Vmax 6 Vdc, Imax 40 A.
2 2 passive Second non-polarized PTC terminal of the SMD0603B035TF, interchangeable with the other terminal, with Rmin 0.200 Ω and R1max 1.000 Ω.

Key specifications

Parameter Value
Manufacturer Brightking
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 0.2 Ω Initial un-soldered state 1
Maximum resistance at 23°C R1max 1 Ω 23°C, measured one hour after tripping or reflow soldering at 260°C for 20 s 1
Hold current Ihold 0.35 A Maximum current device passes without tripping, 23°C still air 1
Trip current Itrip 0.75 A Minimum current at which device trips, 23°C still air 1
Maximum voltage Vmax 6 Vdc Maximum voltage device withstands without damage at rated current (Imax) 1
Maximum fault current Imax 40 A Maximum fault current device withstands without damage at rated voltage (Vmax) 1
Maximum time to trip 0.1 s At 8.00 A current 1
Typical power dissipated in tripped state Pd 0.5 W Tripped state, 23°C still air 1
Passive aging resistance change -50 50 % +85°C, 1000 hours; typical resistance change 5
Humidity aging resistance change -50 50 % +85°C, 85%R.H., 1000 hours; typical resistance change 5
Thermal shock resistance change -50 % MIL-STD-202 Method 107G, -40°C/+85°C, 20 times; typical resistance change 5
Operating / storage temperature -40 85 °C Operating / storage temperature 5
Maximum device surface temperature in tripped state 125 °C Tripped state 5
Recommended hold current at ambient -40°C 0.47 A Recommended hold current at ambient temperature -40°C 3
Recommended hold current at ambient -20°C 0.41 A Recommended hold current at ambient temperature -20°C 3
Recommended hold current at ambient 0°C 0.38 A Recommended hold current at ambient temperature 0°C 3
Recommended hold current at ambient 23°C 0.35 A Recommended hold current at ambient temperature 23°C 3
Recommended hold current at ambient 40°C 0.29 A Recommended hold current at ambient temperature 40°C 3
Recommended hold current at ambient 50°C 0.26 A Recommended hold current at ambient temperature 50°C 3
Recommended hold current at ambient 60°C 0.24 A Recommended hold current at ambient temperature 60°C 3
Recommended hold current at ambient 70°C 0.2 A Recommended hold current at ambient temperature 70°C 3
Recommended hold current at ambient 85°C 0.14 A Recommended hold current at ambient temperature 85°C 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 Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) 6

CAD (KiCad official)

  • Symbol: SMD0603B035TF
  • Footprint: Fuse:Fuse_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: smd0603b035tf-etched.step / smd0603b035tf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smd0603b035tf.step / smd0603b035tf.glb are the bare package body.

Provenance

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

  • Datasheet: Brightking datasheet (7 pp, sha256 7cdb26eecd7dbfde, retrieved 2026-10-18, 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