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MFR-25FRF52-40K2

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YAGEO Through Hole Resistors, 插件,D2.4xL6.3mm. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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Verified MFR-25FRF52-40K2

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: MFR-25FRF52-40K2 · 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: lcsc C1741814, digikey 13-MFR-25FRF52-40K2TR-ND, mouser 603-MFR-25FRF52-40K2
  • ✓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-cxocmff4/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓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✓ mfr-25frf52-40k2.kicad_sym✓ mfr-25frf52-40k2.kicad_mod✓ mfr-25frf52-40k2.step
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verification.json Verified: Published by the parts factory: tier lcsc, 2 pins · Ray

MFR-25FRF52-40K2

YAGEO · Through Hole Resistors · R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal

MFR-25FRF52-40K2 from YAGEO, 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 YAGEO
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 (code F) -1 1 % Tolerance code F = ±1% 2
Temperature coefficient of resistance (code F) TCR -100 100 ppm/°C TCR code F = ±100ppm/°C 2
Rated power P 0.25 W 1/4W for MFR-25 at 70°C; derated above 70°C per derating curve 3
Maximum working voltage 250 V MFR-25 column 3
Maximum overload voltage 500 V MFR-25 column 3
Voltage proof on insulation 500 V MFR-25 column; V-Block for 60 sec.; no breakdown 3
Operating temperature range -55 155 °C 3
Resistance range (minimum) R 1 Ω E24 & E96 series values; printed 1Ω ~ 4M7Ω 3
Resistance range (maximum) R 4.7 MΩ E24 & E96 series values; printed 1Ω ~ 4M7Ω 3
Insulation resistance 10000 MΩ In V-Block for 60 sec. 4
Short time overload resistance change ΔR/R -0.25 0.25 % 2.5 times RCWV for 5 sec. (not more than max overload voltage); appraise ±0.25%+0.05Ω 4
Periodic-pulse overload resistance change ΔR/R -1 1 % 4 times RCWV, 10,000 cycles (1 Sec. on, 25 Sec. off); appraise ±1.0%+0.05Ω 4
Damp heat steady state resistance change ΔR/R -1.5 1.5 % 40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV; appraise ±1.5%+0.05Ω 4
Endurance at 70°C resistance change ΔR/R -1.5 1.5 % 70±2°C at RCWV (or Umax., whichever less) for 1,000 Hr. (1.5 Hr on, 0.5 Hr off); appraise ±1.5%+0.05Ω 4
Temperature cycling resistance change ΔR/R -0.75 0.75 % -55°C → Room Temp. → +155°C → Room Temp. (5 cycles); appraise ±0.75%+0.05Ω 4
Resistance to soldering heat resistance change ΔR/R -0.25 0.25 % 260±3°C for 10±1 Sec., immersed to 3±0.5mm from the body; appraise ±0.25%+0.05Ω 4
Solderability coverage 95 % 245±5°C for 3±0.5 Sec.; minimum coverage 4
Robustness of terminations (direct load) 2.5 Kg Direct load for 10 Sec. in direction of terminal leads; printed ≥2.5Kg (24.5N) 4

CAD (KiCad official)

  • Symbol: MFR-25FRF52-40K2
  • 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: YAGEO datasheet (17 pp, sha256 b460acdb47646977, 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