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ERQ1ABJ101E Datasheet(PDF) 7 Page - Panasonic Semiconductor |
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ERQ1ABJ101E Datasheet(HTML) 7 Page - Panasonic Semiconductor |
7 / 8 page Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. Metal Film Fusing Resistors, ERQA, Z T t Safety Precautions PP : Pulse limit power (W) VP : Pulse limit voltage (V) t : Pulse continuous time (s) T : Period (s) VR : Rated voltage (V) P : Rated power (W) R : Resistance value ( ) Vpmax. : Max. pulse limit voltage (V) Type K Vp max. (V) ERQ14A 0.6 200 ERQ12A 0.6 250 ERQ1AB 0.6 250 ERQ2AB 0.4 250 Withstand pulse limit power is calculated by the next method. PP = K · P · T/ t VP = K · P · R · T/ t Reference to the right about a fixed number of VPmax. ● T>1(s) T=1(s) ● T/t>100 T/ t=100 ● PP<P P stands for PP (VP<VR VR stands for VP) ● Added voltage<Vp max. ● PP or VP is reference value Conditions : Pulse added time=1000 h, Resistance change=±5 % Room temperature (Data for Reference) ■ Pulse Characteristics (Usual) The following are precautions for individual products. Please also refer to the precautions common to Fixed Resistors shown on page ER3 of this catalog. 1. Checking the fusing conditions 1) Fusing characteristics differ depending on the type, shape, and resistance. Check the fusing conditions before selecting the type of Metal Film Fusing Resistors (hereafter called the fusing resistor) to be used. 2) Use the fusing resistors under the maximum open circuit voltage. Otherwise, arcing may occur when a voltage much higher than the rated one is applied in the event of an abnormality in the circuit, or when a high voltage is applied after fusing. 3) Under abnormal conditions of a constant voltage circuit, a current of about 2 or 3 times the initial abnormal current passes through, accelerating the speed at which the fusing resistors blows. When using a constant current circuit, carefully check the conditions because the fusing resistors may not blow in a constant current circuit. 2. Checking for pulse voltage, impact voltage, and transient voltage Make sure to evaluate and check the fusing resistors mounted on your product if they are to be mounted on a circuit that generates an impact voltage, or if there is a possibility that the transient phenomenon (significantly high voltage applied in a short time) may occur or that a pulse voltage with a high peak voltage may be applied. Make sure to consult our sales staff before using the fusing resistors under special conditions. 3. Conditions of use in a steady state Make sure that the load conditions have a sufficient allowance for the power derating curve. The characteristics of the fusing resistors are set by using a constant voltage circuit. 4. The solvent resistance of the fusing resistors is not assured. If you use a solvent for cleaning after soldering or other processes, make sure to consult our sales staff before use and perform a prior test and evaluation to ensure that the solvent will not affect the reliability of the fusing resistors. Feb. 2006 |
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