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PCF2CT631A102K Datasheet(PDF) 4 Page - KOA Speer Electronics, Inc. |
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PCF2CT631A102K Datasheet(HTML) 4 Page - KOA Speer Electronics, Inc. |
4 / 6 page SS-02 R6 PAGE 4 OF 6 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 16701 ■ USA ■ 814-362-5536 ■ Fax 814-362-8883 ■ www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. KOA SPEER ELECTRONICS, INC. 5. Characteristics (Continued) 8 9 Solderability (Method 208) Resistance to solvents Over 3/4th of the lead- wire surface area shall be covered with solder, when judged visually. No evidence of mechanical damage in appearance and marking. The lead-wire is immersed for 2 - 3 seconds in methanol solution containing rosin body is immersed in melted solder at temperature of 235 ±5°C for a period of 3 ± 0.5 sec. as far as the point 2 - 2.5mm from the resistor body. 1. Sample shall be immersed in ultrasonic solvents of 28kHz frequency, 150w (0.3w/cm2) power at 35 ± 5°C for 2 minutes. 2. After samples shall be immersed in specified solvents (following table) for 3 minutes, the resistor shall be immediately wiped with a dry cloth (velvet or gauze) (Solvents) 1. Iso-proryle alcohol 2. 1-1-1 trichloroethane 10 Dielectric withstanding voltage (Method 301) The resistor develops no dielectric breakdown. Resistance change shall be ± (1% + 0.05 ohm) of the Pre-test value. The resistors shall be clamped in the trough of a 90°C metallic V-block of such size that the resistor body does not extend beyond the ends of the trough. The resistor leads shall be positioned such that they are no closer to the V-block than if they were parallel to the sides of the V-block. This prevents unnecessary proximity of the leads to the block, while permitting complete seating of the resistor body in the block. Sine wave RMS voltages from an alternating current supply at commercial line frequency not more than 100 Hertz as specified in Table 1 shall be applied at the rate of approximately 100 volts per second between resistor terminals connected together and the V-block, and held for 5 seconds. The coating cab withstand the overload test, with no possibilities of ignition. 1. Overload Test as per UL-492, Item 13: A piece of cotton cloth (A piece of gauze untreated corresponding to Nos 32-28 that measures 36 inches in width and 14 - 15 yards per pound) is wound around a resistor. Then, the resistor is applied with voltage which is increased by two times, three times, . . . ten times the rated voltage at intervals of one minute till the resistor is broken down. If the cotton cloth is found igniting, the resistor shall be considered unacceptable. The coating is completely proof against any kind of heat sources. Even if exposed to gas burner flames or heated red with nichrome wire wounded, the coating will not flame, nor soften and melt to drop. 2. Hot-wire Ignition Test as per UL-492-2, Item 9: A nichrome wire (Mixture of Cr 20% and Ni 80% which measures 0.0201 inches in diameter and 865 feet per pound, and having 1.61 ohm per foot) is wound a resistor at intervals of 1/4 inch so as to result in power consumption of 65W or more. Then, the resistor is heated red with electricity supplied to the nichrome wire. 11 Flame-proof (UL-492-2) SS-02 R6 6/20/07 3:37 PM Page 4 |
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