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FW30A7R50JA Arkusz danych(PDF) 2 Page - Bourns Electronic Solutions |
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FW30A7R50JA Arkusz danych(HTML) 2 Page - Bourns Electronic Solutions |
2 / 4 page Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. FWxxA Series Fusible Power Resistors Performance Specifications Characteristic Limits Test Method (JIS-C-5201 & JIS-C-5202) Temperature Coefficient ±200 PPM/°C max. 4.8 Natural resistance changes per temperature (°C): R2-R2 x 106 (PPM/°C) R1(T2-T1) R1: Resistance value at room temp. (T1) R2: Resistance value at room temp. +100 °C (T2) Short Time Overload Resistance change rate is ±5 % max., with no evidence of mechanical damage. 4.13 Permanent resistance change after the application of a potential of 2.5 times RCWV for 5 seconds. Terminal Strength No evidence of mechanical damage. 4.16 Direct Load: Resistance to a 2.5 kg direct load for 10 seconds in the direction of the longitudinal axis of the terminal leads. Twist Test: Terminal leads shall be bent through 90 ° at a point of approximately 6 mm from the body of the resistor and shall be rotated through 360 ° (about the original axis of the bent terminal) in alternating directions for a total of three rotations. Resistance to Soldering Heat Resistance change rate is ±1 % max., with no evidence of mechanical damage. 4.18 Permanent resistance change when leads are immersed to a point 2.0 to 2.5 mm from the body in 260 °C (±5 °C) solder for 10 (±1) seconds. Solderability 95 % coverage minimum 4.17 The area covered with a new, smooth, clean, shiny and continuous surface free from concentrated pinholes. Test temp. of solder: 245 °C (±3 °C). Dwell time in solder: 2~3 seconds. Load Life in Humidity Resistance change rate is ±5 % max., with no evidence of mechanical damage. 7.9 Resistance change after 1,000 hours (1.5 hours “ON”, 0.5 hours “OFF”) at RCWV in a humidity test chamber controlled at 40 °C (±2 °C) and 90-95 % relative humidity. Safety Fuse Resistance value shall increase at least 100 times initial value. 1 W ~ 5 W: Load 120/240 VAC voltage. 7 W: Load 240 VAC voltage. Resistor must be safely fused. Dielectric Withstanding Voltage No evidence of flashover mechanical damage, arcing or insulation breakdown. UL1412, 19.1 A resistor (or a resistor and its mounting if provided), shall withstand, without breakdown, for a period of not less than one minute, a 60 Hz potential of 1000 V plus twice the rated voltage applied between live parts and dead metal parts, if any. 1st Significant Figure 2nd Significant Figure 3rd Significant Figure Multiplier Tolerance Typical Part Marking Color 1st Band 2nd Band 3rd band Multiplier Tolerance Black 0 0 0 1 Ω Brown 1 1 1 10 Ω ±1 % Red 2 2 2 100 Ω ±2 % Orange 3 3 3 1 KΩ Yellow 4 4 4 10 KΩ Green 5 5 5 100 KΩ ±0.5 % Blue 6 6 6 1 MΩ ±0.25 % Violet 7 7 7 10 MΩ ±0.10 % Grey 8 8 8 ±0.05 % White 9 9 9 Gold 0.1 Ω ±5 % Silver 0.01 Ω ±10 % |
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