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QN0603X104F4250FB

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QAMcn NTC Thermistors, 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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QN0603X104F4250FB

QAMcn · NTC Thermistors · 0603

QN0603X104F4250FB from QAMcn, 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 external end electrode of the non-polar NTC thermistor, 100 kΩ ±1% at 25°C, B(25/50°C) 4250 K ±1%, rated 100 mW at 25°C.
2 2 passive Second external end electrode of the non-polar NTC thermistor, interchangeable with the other terminal, operating range -40 to +125°C.

Key specifications

Parameter Value
Manufacturer QAMcn
Package 0603
Category Sensors
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
Resistance tolerance (R25), code F R25 -1 1 % Part-number tolerance code F (±1%) 2
B constant tolerance, code F B(25-50℃) -1 1 % Part-number B-constant tolerance code F (±1%) 2
Operating ambient temperature -40 125 ℃ Operating ambient temperature 2
Thermal time constant 5 s Printed as <5; zero-power, 63.2% temperature change 2
Resistance at -40℃ (R-T table) R 4191.52 4397.12 4612.34 kΩ R-T table: R_Min / R_Cent / R_Max at -40℃ 10
Resistance at 0℃ (R-T table) R 348.972 357.012 365.2 kΩ R-T table: R_Min / R_Cent / R_Max at 0℃ 10
Resistance at 25℃ (R-T table) R 99 100 101 kΩ R-T table: R_Min / R_Cent / R_Max at 25℃ 11
Resistance at 50℃ (R-T table) R 32.502 33.195 33.898 kΩ R-T table: R_Min / R_Cent / R_Max at 50℃ 12
Resistance at 85℃ (R-T table) R 8.574 8.873 9.181 kΩ R-T table: R_Min / R_Cent / R_Max at 85℃ 12
Resistance at 100℃ (R-T table) R 5.177 5.384 5.599 kΩ R-T table: R_Min / R_Cent / R_Max at 100℃ 13
Resistance at 125℃ (R-T table) R 2.407 2.522 2.643 kΩ R-T table: R_Min / R_Cent / R_Max at 125℃ 13
Nominal zero-power resistance R25 100 kΩ At 25℃ 2
Nominal B constant 25/50℃ B(25-50℃) 4250 K B constant at 25/50℃ 2
Nominal B constant 25/85℃ B(25-85℃) 4310 K B constant at 25/85℃ 2
Permissible operating current (25℃) 0.1 mA At 25℃; current giving 1℃ self-heating in still air 2
Dissipation factor δ 1 mW/℃ Power to raise body temperature 1℃ by self-heating 2
Rated electric power (25℃) 100 mW At 25℃ ambient 2

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
housing PC The current that keep body temperature of chip NTC on the PC board in still air 4

CAD (KiCad official)

  • Symbol: QN0603X104F4250FB
  • Footprint: Resistor_SMD:R_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: qn0603x104f4250fb-etched.step / qn0603x104f4250fb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); qn0603x104f4250fb.step / qn0603x104f4250fb.glb are the bare package body.

Provenance

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

  • Datasheet: QAMcn datasheet (13 pp, sha256 6edfd182fdbefc43, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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