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MF0S4FF3301A50

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

MF0S4FF3301A50 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
Resistance tolerance -1 1 % Part no. digit 6 'F' = ±1% 2
Temperature coefficient (TCR) -50 50 ppm/℃ Standard ±1% tolerance, 10Ω~1MΩ; part no. digit 7 'F' = 50 PPM 5
Resistance range minimum (standard ±1%) R 10 Ω Standard ±1% tolerance, MF 1/4WS 5
Resistance range maximum (standard ±1%) R 1 MΩ Standard ±1% tolerance, MF 1/4WS 5
Max working voltage 200 V MF 1/4WS, dimension table, working voltage column 4
Max overload voltage 400 V MF 1/4WS, dimension table, max overload voltage column 4
Dielectric withstanding voltage 400 V MF 1/4WS, dimension table, dielectric withstanding voltage column 4
Ambient temperature range (rated operation) -55 155 ℃ Continuous load, derating curve, section 7 5
Full rated power ambient limit 70 ℃ Power constant from -55 to 70 ℃, derates to zero from 70 to 155 ℃ 5
Short-time overload ΔR/R ΔR/R -0.5 0.5 % ΔR/R ≤ ±(0.5%+0.05 Ω); 2.5 times RCWV or Max. Overload voltage whichever less for 5 seconds 6
Pulse overload ΔR/R ΔR/R -1 1 % ΔR/R ≤ ±(1%+0.05); 10,000 cycles (1 s ON, 25 s OFF) at 4 times RCWV or Max. Overload whichever less 6
Resistance to soldering heat ΔR/R ΔR/R -1 1 % ΔR/R ≤ ±(1%+0.05 Ω); leads immersed 2.0-2.5 mm from body in 260℃±5℃ solder for 10±1 s 6
Rapid change of temperature ΔR/R ΔR/R -1 1 % ΔR/R ≤ ±(1%+0.05 Ω); 30 min at -55 ℃ and 30 min at 155 ℃; 100 cycles 6
Load life in humidity ΔR/R (normal type) ΔR/R -1.5 1.5 % 1,000 h (1.5 h ON, 0.5 h OFF) at RCWV or Max. Working Voltage whichever less, 40℃±2℃, 90 to 95% RH 6
Load life ΔR/R (normal type) ΔR/R -1.5 1.5 % 1,000 h (1.5 h ON, 0.5 h OFF) at RCWV or Max. Working Voltage whichever less, 70℃±2℃ ambient 6
Low temperature storage ΔR/R (normal type) ΔR/R -1.5 1.5 % -55℃, for 2H (IEC 60068-2-1 Aa) 6
High temperature exposure ΔR/R (normal type) ΔR/R -1.5 1.5 % 155℃, for 16H (MIL-STD-202 108A) 6
Solderability coverage 95 % Coverage must be over 95%; test temp of solder 245℃±3℃, dwell 2~3 seconds 6

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: MF0S4FF3301A50
  • 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