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Specifications
Type:
Metal Film Resistor
Resistance:
270Ω
Power(Watts):
500mW
Temperature Coefficient:
±50ppm/℃
Tolerance:
±1%
Mfr. Part #:
MFS1/2CCT52A2700F
Package:
Through Hole,D2.3xL6.3mm
Key Attributes
Model Number:
MFS1/2CCT52A2700F
Product Description
Product Overview
KOA Speer Electronics' MF, MFS, and RK series are general-purpose metal film leaded resistors designed for a wide range of applications. These resistors feature a ceramic core with a resistive film and insulation coating, offering reliable performance. The MFS series provides double the power rating of standard body types. The RK series is recognized by UL 1676 and c-UL as a discharge path resistor and meets MIL-R-22684 requirements. They are suitable for automatic machine insertion and are available with lead-free terminations meeting EU RoHS and China RoHS requirements. The MF1/4, MFS1/4, and MFS1/2 series are AEC-Q200 Qualified.
Product Attributes
- Brand: KOA Speer Electronics
- Construction: Ceramic Core, Resistive Film, Insulation Coating
- Marking: Blue-gray body color with color-coded bands
- Certifications: UL 1676, c-UL (CAS-C22.2 No.1-M94) for RK series, MIL-R-22684, AEC-Q200 Qualified (MF1/4, MFS1/4, MFS1/2)
- Compliance: EU RoHS, China RoHS (lead-free terminations)
- Termination Material: SnCu (C)
- Packaging Options: Ammo (A), Reel (R)
Technical Specifications
| Part Designation | Power Rating @ 70C | Resistance Range () | Tolerance | T.C.R. (ppm/C) | Absolute Maximum Working Voltage | Absolute Maximum Overload Voltage | Dimensions (mm) | Operating Temperature Range |
|---|---|---|---|---|---|---|---|---|
| MF1/4 | 0.25W | 1 - 10M | 0.1% (B), 0.25% (C), 0.5% (D), 1% (F), 2% (G), 5% (J) | 25 (C), 50 (D), 100 (L) | 250V | 300V | D: 7.1, d: 2.3, L: 28.0, l: 0.6, C: 3.5 | -55C to +155C |
| MF1/2 | 0.50W | 0.51 - 10M | 0.1% (B), 0.25% (C), 0.5% (D), 1% (F), 2% (G), 5% (J) | 25 (C), 50 (D), 100 (L) | 350V | 700V | D: 7.1, d: 2.3, L: 38.0, l: 0.6, C: 5.5 | -55C to +155C |
| MF1 | 1W | 1 - 100M | 0.1% (B), 0.25% (C), 0.5% (D), 1% (F), 2% (G), 5% (J) | 25 (C), 50 (D), 100 (L), 200 (L), 250 (G), 350 (B) | 700V | 1000V | D: 7.1, d: 2.3, L: 24.0 (min), l: 0.6, C: 9.0 | -55C to +155C |
| MFS1/4 | 0.25W | 49.9 - 562k | 0.1% (B), 0.25% (C), 0.5% (D), 1% (F), 2% (G), 5% (J) | 50 (C), 100 (D) | 250V | 300V | D: 3.4, d: 0.45, L: 6.3, l: 0.6, C: 2.3 | -55C to +155C |
| MFS1/2 | 0.50W | 10 - 2.21M | 0.1% (B), 0.25% (C), 0.5% (D), 1% (F), 2% (G), 5% (J) | 50 (C), 100 (D) | 350V | 700V | D: 18.3, d: 0.8, L: 15.5, l: 0.6, C: 5.5 | -55C to +155C |
| RK1/4 | 0.25W | 3.09M - 33M | 0.5% (D) | 100 (D) | 700V | 1000V | D: 7.1, d: 2.3, L: 9.5, l: 0.6, C: 3.5 | -55C to +155C |
| RK1/2 | 0.50W | 3.3M - 33M | 0.5% (D) | 100 (D) | 700V | 1000V | D: 18.3, d: 0.8, L: 15.5, l: 0.6, C: 5.5 | -55C to +155C |
| RK1 | 1W | 100k - 100M | 0.1% (B), 0.25% (C), 0.5% (D), 1% (F), 2% (G), 5% (J) | 250 (G), 350 (B) | 1000V | 1500V | D: 24.0 (min), d: 0.8, L: 15.5, l: 0.6, C: 9.0 | -55C to +155C |
* Lead length changes depending on taping and forming.
Performance Characteristics:
| Parameter | Requirement | Test Method |
|---|---|---|
| Resistance | Within specified tolerance | 25C Room temperature |
| T.C.R. | Within specified T.C.R. | +100C |
| Overload (Short Time) | MF: 0.5%, RK: 1%, RK1/2G: 2.5% | Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is less; MFS1/2: Rated voltage x 2 or max. overload voltage for 5 seconds, whichever is less |
| Resistance to Solder Heat | MF1/4, MFS1/2, MF1/2: 0.5%, MFS1/4: 0.4%, RK: 0.5%, RK1/2G: 1% | 260C 5C, 10 seconds 1 second or 350C 10C, 3.5 seconds 0.5 second |
| Dielectric Withstanding Voltage | No breakdown | 1 minute |
| Insulation Resistance | Not less than 10,000M | 100V, 1 minute |
| Rapid Change of Temperature | MF: 0.3%, RK: 1%, RK1/2G: 5% | -55C (30 minutes), +155C (30 minutes), 5 cycles |
| Moisture Resistance | MF1/4, MFS1/2, MF1/2: 1%, MFS1/4: 1.5%, RK: 2%, RK1/2G: 5% | 40C 2C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle |
| Endurance at 70C | MF1/4, MFS1/2, MF1/2: 0.75%, MFS1/4: 1%, RK: 2%, RK1/2G: 5% | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle |
| Resistance to Solvent | No abnormality in appearance. Marking shall be easily legible | The resistor shall be immersed for 5 seconds in IPA |
| Impulse Discharge | No such abnormalities as short-circuit, burnout, breakdown, etc. | 50 pulses. Internal 2.5 seconds. Charge voltage: 1.25kV (RK1/4), 2.5kV (RK1/2) and 6kV (RK1) |
2410121706_KOA-MFS1-2CCT52A2700F_C202436.pdf
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