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MF0S4FF1003A50

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UNI ROYAL Uniroyal Elec Through Hole Resistors, 插件,D1.9xL3.3mm. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentresistorsmf0s4ff1003a50factory-2.0.0extractor-text

Verified MF0S4FF1003A50

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier lcsc, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: MF0S4FF1003A50 · R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • •distributor (warn): no ['digikey'] number
  • ✓family: R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-bs170qj3/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): the datasheet dimensions give no height or body size to compare (datasheet p.4)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ mf0s4ff1003a50.kicad_sym✓ mf0s4ff1003a50.kicad_mod✓ mf0s4ff1003a50.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

MF0S4FF1003A50

UNI ROYAL Uniroyal Elec · Through Hole Resistors · R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal

MF0S4FF1003A50 from UNI ROYAL Uniroyal Elec, in a R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal. 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 Terminal 1 of an unpolarised resistor; either orientation.
2 2 passive Terminal 2 of an unpolarised resistor; either orientation.

Key specifications

Parameter Value
Manufacturer UNI ROYAL Uniroyal Elec
Package R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal
Category Resistors
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
Rated power P 0.25 W MF 1/4WS (code S4 = 1/4W-S); constant from -55 to 70°C ambient, derates to zero at 155°C 5
Max working voltage 200 V MF 1/4WS, max working (rated DC/RMS AC continuous) voltage 4
Max overload voltage 400 V MF 1/4WS, max overload voltage 4
Dielectric withstanding voltage 400 V MF 1/4WS, standard product (not flame retardant) 4
Resistance tolerance -1 1 % F code = ±1%; standard range 10Ω~1MΩ 5
Temperature coefficient of resistance TCR -50 50 ppm/°C ±1% standard series, MF 1/4WS; code F = 50 PPM 5
Resistance range R 10 1 Ω~MΩ ±1% standard series, printed as 10Ω~1MΩ; part value 100kΩ 5
Short-time overload resistance change ΔR/R 0.5 % ΔR/R ≤ ±(0.5%+0.05 Ω); 2.5×RCWV or max overload voltage whichever lower, 5 s 6
Pulse overload resistance change ΔR/R 1 % ΔR/R ≤ ±(1%+0.05); 10,000 cycles (1 s ON, 25 s OFF) at 4×RCWV or max overload whichever less 6
Resistance to soldering heat resistance change ΔR/R 1 % ΔR/R ≤ ±(1%+0.05 Ω); 260°C±5°C solder, 10±1 s 6
Rapid change of temperature resistance change ΔR/R 1 % ΔR/R ≤ ±(1%+0.05 Ω); -55°C/155°C, 100 cycles 6
Load life in humidity resistance change (normal type) ΔR/R 1.5 % ΔR/R ≤ ±1.5%; 1,000 h at 40°C±2°C, 90-95% RH, RCWV or max working voltage whichever less 6
Load life resistance change (normal type) ΔR/R 1.5 % ΔR/R ≤ ±1.5%; 1,000 h at 70°C±2°C, RCWV or max working voltage whichever less 6
Low temperature storage resistance change (normal type) ΔR/R 1.5 % ΔR/R ≤ ±1.5%; -55°C for 2 h 6
High temperature exposure resistance change (normal type) ΔR/R 1.5 % ΔR/R ≤ ±1.5%; 155°C for 16 h 6
Operating ambient temperature range Ta -55 155 °C Power rating applies to continuous load; derates to zero from 70°C to 155°C 5

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 4 Lead Wire Tin solder coated copper wire 5

CAD (KiCad official)

  • Symbol: MF0S4FF1003A50
  • Footprint: Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal
  • 3D model: R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: UNI ROYAL Uniroyal Elec datasheet (8 pp, sha256 58cca3f1fd846c5b, retrieved 2026-11-06, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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