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MFR0W4F4702A50

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UNI ROYAL Uniroyal Elec Through Hole Resistors, 插件,D2.2xL6.5mm. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentresistorsmfr0w4f4702a50factory-2.0.0extractor-text

Verified MFR0W4F4702A50

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: MFR0W4F4702A50 · R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_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', 'mouser'] number
  • ✓family: R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-2ahrzm54/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✓ mfr0w4f4702a50.kicad_sym✓ mfr0w4f4702a50.kicad_mod✓ mfr0w4f4702a50.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

MFR0W4F4702A50

UNI ROYAL Uniroyal Elec · Through Hole Resistors · R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal

MFR0W4F4702A50 from UNI ROYAL Uniroyal Elec, in a R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_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_DIN0207_L6.3mm_D2.5mm_P10.16mm_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 (part no. code F = ±1%) -1 1 % Part no. 7th code F = ±1% 8
Temperature coefficient of resistance (±1% item) TCR -50 50 PPM/℃ Room temp. (T1) and room temp. +100℃ (T2), JIS-C-5201 4.8 7
Max working voltage (RCWV), MF 1/4W 250 V MF 1/4W normal size row 4
Max overload voltage, MF 1/4W 500 V MF 1/4W normal size row; overload = 2.5 × RCWV 4
Dielectric withstanding voltage, MF 1/4W 500 V MF 1/4W normal size row; AC test for 60-70 s, 90° V-block (4.7) 4
Short-time overload resistance change ΔR/R -0.5 0.5 % 2.5 × RCWV for 5 s; printed ±(0.5%+0.05Ω) max; no mechanical damage 7
Pulse overload resistance change ΔR/R -1 1 % 10,000 cycles, 1 s ON / 25 s OFF at 4 × RCWV; printed ±(1%+0.05Ω) max 7
Resistance to soldering heat resistance change ΔR/R -1 1 % Leads immersed 2.0-2.5mm from body in 260℃±5℃ solder for 10±1 s; printed ±(1%+0.05Ω) max 7
Solderability (coverage) 95 % Solder at 245℃±3℃, dwell 2-3 s; coverage minimum 7
Temperature cycling resistance change ΔR/R -1 1 % 5 cycles, -55℃±3℃ 30 min / +155℃±2℃ 30 min; printed ±(1%+0.05Ω) max 7
Load life in humidity resistance change (normal type) ΔR/R -1.5 1.5 % 1,000 h, 1.5 h ON / 0.5 h OFF at RCWV, 40℃±2℃, 90-95% RH 7
Load life resistance change (normal type) ΔR/R -1.5 1.5 % 1,000 h at RCWV, duty 1.5 h ON / 0.5 h OFF, 70℃±2℃ ambient 7
Ambient temperature range for rated continuous load -55 70 ℃ Continuous load at full power rating; above 70℃ derate per Figure 1 (curve not reproduced in text) 6
Recommended storage temperature 15 35 ℃ UNIOHM recommended storage condition 13
Recommended storage humidity 25 75 % UNIOHM recommended storage condition 13

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: MFR0W4F4702A50
  • Footprint: Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal
  • 3D model: R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: UNI ROYAL Uniroyal Elec datasheet (13 pp, sha256 a4c17c09acd8577c, 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