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Specifications
Type:
Metal Film Resistor
Resistance:
10kΩ
Voltage-Supply(Max):
250V
Power(Watts):
250mW
Temperature Coefficient:
±100ppm/℃
Tolerance:
±1%
Operating Temperature:
-55℃~+155℃
Mfr. Part #:
MFS1/4DCT52A1002F
Package:
Through Hole,D1.7xL3.2mm
Key Attributes
Model Number:
MFS1/4DCT52A1002F
Product Description
Product Overview
KOA Speer Electronics, Inc. offers a series of general-purpose metal film leaded resistors, including MF, MFS, and RK types. These resistors are designed for broad applications and feature semi-precision performance. The MFS series provides double the power rating of standard body types. Products with lead-free terminations comply with EU RoHS and China RoHS requirements. Certain models (MF1/4, MFS1/4, MFS1/2) are AEC-Q200 Qualified. They are suitable for automatic machine insertion and meet the requirements of MIL-R-22684.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Origin: USA
- Certifications: AEC-Q200 Qualified (MF1/4, MFS1/4, MFS1/2), EU RoHS, China RoHS (lead-free termination products)
- Construction: Ceramic Core, Resistive Film, Insulation Coating, End Cap, Lead Wire
Technical Specifications
| Part Designation | Power Rating @ 70C | Resistance Range () | Tolerance | T.C.R. (ppm/C) | Absolute Maximum Working Voltage | Minimum Dielectric Withstanding Voltage | Operating Temperature Range | Dimensions (inches/mm) - L (ref.) | Dimensions (inches/mm) - D | Dimensions (inches/mm) - d (nom.) | Dimensions (inches/mm) - l* | Dimensions (inches/mm) - C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MF1/4C | 0.25W | 10 - 2.21M | C: 0.25% | 50 | 300V | -55C to +155C | .248.02 (6.30.5) | .280 (7.1) | .091.012 (2.30.3) | .024 (0.6) | .437 (11.1) | |
| MF1/4D | 0.25W | 10 - 2.21M | D: 0.5% | 100 | 300V | -55C to +155C | .248.02 (6.30.5) | .280 (7.1) | .091.012 (2.30.3) | .024 (0.6) | .437 (11.1) | |
| MF1/2C | 0.50W | 5.1 - 5.11M | C: 0.25% | 50 | 350V | -55C to +155C | .280 (7.1) | .437 (11.1) | .138.016 (3.50.4) | .024 (0.6) | .354.04 (9.01.0) | |
| MF1/2D | 0.50W | 5.1 - 4.64M | D: 0.5% | 100 | 350V | -55C to +155C | .280 (7.1) | .437 (11.1) | .138.016 (3.50.4) | .024 (0.6) | .354.04 (9.01.0) | |
| MF1C | 1W | 1.0 - 6.81M | C: 0.25% | 50 | 500V | -55C to +155C | .280 (7.1) | .437 (11.1) | .138.016 (3.50.4) | .024 (0.6) | .354.04 (9.01.0) | |
| MF1E | 1W | 1.0 - 4.99M | E: 25 | 25 | 500V | -55C to +155C | .280 (7.1) | .437 (11.1) | .138.016 (3.50.4) | .024 (0.6) | .354.04 (9.01.0) | |
| MFS1/4C | 0.25W | 10 - 562k | C: 0.25% | 50 | 250V | 300V | -55C to +155C | .126 +.02 -.008 (3.2 +0.5 -0.2) | .280 (7.1) | .091.012 (2.30.3) | .024 (0.6) | .248.02 (6.30.5) |
| MFS1/4D | 0.25W | 10 - 1M | D: 0.5% | 100 | 250V | 300V | -55C to +155C | .126 +.02 -.008 (3.2 +0.5 -0.2) | .280 (7.1) | .091.012 (2.30.3) | .024 (0.6) | .248.02 (6.30.5) |
| MFS1/2C | 0.50W | 10 - 2.21M | C: 0.25% | 50 | 350V | 500V | -55C to +155C | .217.04 (5.51.0) | .721 (18.3) | .610.02 (15.50.5) | .031 (0.8) | .133 (3.4) |
| MFS1/2D | 0.50W | 10 - 1M | D: 0.5% | 100 | 350V | 500V | -55C to +155C | .217.04 (5.51.0) | .721 (18.3) | .610.02 (15.50.5) | .031 (0.8) | .133 (3.4) |
| RK1/4B | 0.25W | 100k - 33M | B: 350 | 350 | 700V | 1000V | -55C to +155C | .437 (11.1) | .374.04 (9.51.0) | .138.016 (3.50.4) | .024 (0.6) | .024 (0.6) |
| RK1/4D | 0.25W | 3.09M - 25M | D: 100 | 100 | 700V | 1000V | -55C to +155C | .437 (11.1) | .374.04 (9.51.0) | .138.016 (3.50.4) | .024 (0.6) | .024 (0.6) |
| RK1/4L | 0.25W | 100k - 25M | L: 200 | 200 | 700V | 1000V | -55C to +155C | .437 (11.1) | .374.04 (9.51.0) | .138.016 (3.50.4) | .024 (0.6) | .024 (0.6) |
| RK1/2B | 0.50W | 100k - 51M | B: 350 | 350 | 700V | 1500V | -55C to +155C | .720 (18.3) | .610.04 (15.51.0) | .031 (0.8) | .024 (0.6) | .217.02 (5.50.5) |
| RK1/2G* | 0.50W | 100k - 100M | G: 250 | 250 | 700V | 1500V | -55C to +155C | .720 (18.3) | .610.04 (15.51.0) | .031 (0.8) | .024 (0.6) | .217.02 (5.50.5) |
| RK1/2L | 0.50W | 100k - 35M | L: 200 | 200 | 700V | 1500V | -55C to +155C | .720 (18.3) | .610.04 (15.51.0) | .031 (0.8) | .024 (0.6) | .217.02 (5.50.5) |
| RK1BC | 1W | 1M - 12M | B: 350 | 350 | 1000V | 1500V | -55C to +155C | 0.94 min. (24.0 min.) | N/A | N/A | N/A | N/A |
* Lead length changes depending on taping and forming.
Performance Characteristics:
| Parameter | Requirement R (% + 0.05) | Limit | Typical Test Method |
|---|---|---|---|
| Resistance | Within specified tolerance | ||
| T.C.R. | Within specified T.C.R. | 25C Room temperature, +100C, RK: +25C/+125C | |
| Overload (Short Time) | 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 | MF: 0.5% RK: 0.6%, RK1/2G: 1% | MF: 0.3% RK: 1%, RK1/2G: 2.5% |
| Resistance to Solder Heat | 260C 5C, 10 seconds 1 second or 350C 10C, 3.5 seconds 0.5 second | MF1/4, MFS1/2, MF1/2: 0.5%, MFS1/4: 0.4% RK: 0.5%; RK1/2G: 1% | MF1/4, MFS1/2, MF1/2: 0.25% MFS1/4: 0.4% RK: 1%; RK1/2G: 5% |
| Dielectric Withstanding Voltage | 1 minute | No breakdown | |
| Insulation Resistance | 100V, 1 minute | Not less than 10,000M | |
| Rapid Change of Temperature | -55C (30 minutes), +155C (30 minutes), 5 cycles | RK,MF: 1%; RK1/2G: 5% | MF: 0.3%; RK: 0.5%, RK1/2G: 1% |
| Moisture Resistance | 40C 2C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | MF1/4, MFS1/2, MF1/2: 1% RK: 5%; RK1/2G: 10%; MFS1/4: 1.5% | MF1/4, MFS1/2, MF1/2: 0.75% RK: 2%; RK1/2G: 5%; MFS1/4: 1% |
| Endurance at 70C | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | MF1/4, MFS1/2, MF1/2: 1% RK: 5%; RK1/2G: 10%; MFS1/4: 1.5% | MF1/4, MFS1/2, MF1/2: 0.75% RK: 2%; RK1/2G: 5%; MFS1/4: 1% |
| Resistance to Solvent | The resistor shall be immersed for 5 seconds in IPA | No abnormality in appearance. Marking shall be easily legible | |
| Impulse Discharge from 1000pF capacitor | 50 pulses. Internal 2.5 seconds. Charge voltage: 1.25kV (RK1/4), 2.5kV (RK1/2) and 6kV (RK1) | No such abnormalities as short-circuit, burnout, breakdown, etc. |
2410121551_KOA-MFS1-4DCT52A1002F_C782203.pdf
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