|
電阻系列 -
電阻規格
|
|
作者是 FMF Series
|
|
週日, 03 八月 2008 15:18 |
 不燃性金屬膜電阻器 - FMF 系列  Flame-Proof Type Metal Film Resistors - FMF Series | | | | | | | | | | | | | | | | | | | 不燃性金屬膜電阻器 - FMF 系列 | | | | | | | | | | | | | | | | | | | | TYPE | POWER | | FEATURES | | |  | | | FMF-25 | 1/4W, | | Power Rating: 0.25W, 0.5W, 1W, 2W. | | | | | FMF-50 | 1/2W | | Resistance Tolerance: ±1%, ±5%. | | | | | FMF-100 | 1W | | T.C.R.: ±50ppm/ ℃ , ±100ppm/ ℃. | | | | | FMF-200 | 2W | | Complete flameproof construction-UL Approval | | | | | | | | Value range: 1Ω ~ 1MΩ | | | | | | | | | | | | | | | | | | | INTRODUCTION | | | | | | | | | | | | | | | | | | | | | | | | | | The FMF series flame-proof type Metal Film Resistors are manufactured by vacuum deposit metal film on high thermal conductivity ceramic rods, and are coated with layers of gray color flame-proof lacquer.These FMF flame-proof metal film resistor is designed to replace the metal oxide resistors and low power wire wound resistors, where when flame-prood and small size is needed. | | | | | | | | | | | | | | | | | | | | | DIMENSIONS: | | | | | | | | | | | | | | | | | | | | | | | | | | STYLE | DIMENSION (mm) | POWER RATING | |  | | | L | ΦD | H | Φd | (Watt) | | | | FMF-25 | 6.3±0.5 | 2.3±0.3 | 28±2 | 0.6±0.05 | 1/4W | | | | FMF-50 | 9.0±0.5 | 3.2±0.5 | 26±2 | 0.6±0.05 | 1/2W | | | | FMF-100 | 11.5±1.0 | 4.5±0.5 | 35±2 | 0.8±0.05 | 1W | | | | FMF-200 | 15.5±1.0 | 5.0±0.5 | 33±2 | 0.8±0.05 | 2W | | | | | | | | | | | | | | | | | | ELECTRICAL CHARACTERISTICS: | | | | | | | | | | | | | | | | | | | | | | | Style | FMF-25 | FMF-50 | FMF-100 | FMF-200 | | | | | | | | Power Rating 70oC | 1/4W | 1/2W | 1W | 2W | | | | | | | | Operating Temp. Range | -55oC ~ +155oC | | | | | | | | Max. Working Voltage | 250V | 350V | 500V | 500V | | | | | | | | Max. Overload Voltage | 500V | 700V | 1000V | 1000V | | | | | | | | Dielectric Withstanding Voltage (AC) | 500V | 700V | 1000V | 1000V | | | | | | | | Max. Intermittence Overload Voltage | 300V | 500V | 1000V | 1000V | | | | | | | | Value Range ±1%, ±5% | 10Ω ~1MΩ | | | | | | | | Temp. Coefficient (by Type) | ±50ppm, ±100ppm. | | | | | | | | * The listed resistance range for standard resistance, below or over this resistance is on request. | | | | | | | | | | | | | | | | | | | | ENVIRONMENTAL CHARACTERISTICS : | | | | | | | | | | | | | | | | | | | | | | | PERFORMANCE TEST | TEST METHOD | APPRAISE | | | Short Time Overload | JIS-C-5202 5.5 : 2.5 times RCWV for 5 seconds | ±(0.75%+0.05)Ω | | | Dielectric Withstanding V. | JIS-C-5202 5.7 : in V-Block for 60 seconds | By Type | | | Temperature Coefficient | JIS-C-5202 5.2 : -55oC ~+155oC | By Type | | | Insulation Resistance | JIS-C-5202 5.6 : in V-Block | ≧1000 MΩ | | | Solderability | JIS-C-5202 6.5 : 230oC for 5±0.5 seconds | 95% min. coverage | | | Resistance to Solvent | JIS-C-5202 6.9 : Trichroethance for 1 min. with ultrasonic | no deterioration | | | Terminal Strength | Direct load for 10 sec. In the direction of the terminal leads | ≧2.5KG/24.5N | | | Pulse Overload | JIS-C-5202 5.8 : 4 time RCWV 10000 cycles(1 sec.on, 25 sec.off) | ±(2%+0.05)Ω | | | Load Life in Humidity | JIS-C-5202 7.9 : 40±2oC, 90~95% RH at RCWV for 1000 hrs | ±(3%+0.05)Ω | | | (1.5hrs. on, 0.5 hrs. off) | | | Load Life | JIS-C-5202 7.10 : 70oC at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off) | ±(3%+0.05)Ω | | | Temperature Cycling | | ±(1%+0.05)Ω | | | Soldering Heat | | ±(1%+0.05)Ω | | | | | | | | | | | | | | | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
|
|
最近更新在 週一, 17 八月 2009 13:19 |
