MF0S4FF3301A50
Public Made by Adomby adom
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.
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, primarytwo-terminal convention(convention), consensusoff(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).