Panasonic ERJ PB3 Series Manual

Matters to Be Observed When Using This ProductA capacitor conforming to "AEC-Q200" refers to a capacitor having passed some or all of evaluation test items definedin AEC-Q200.To know the detailed specifications of each capacitor or specific evaluation test scores, please contact us.We issue a delivery specification sheet for each product ordered. Please confirm the delivery specification sheet whenyou place an order with us.■ To prevent a case where a transient load (e.g., a pulse for a short period) too large for the product to handle is applied,make sure to evaluate and confirm the operation of the product incorporated in your product. Applying power or voltage(current) larger than the rated power or rated voltage (current) to the resistor may impair its performance and reliability.Make sure to use the resistor with power or voltage (current) equal to or lower than the rated power or rated voltage(current). The product warranty does not cover usage where an excessively large load, such as a pulse current, isapplied to the product.■ The resistor may have a high temperature even when used with power equal to or lower than the rated power. Be carefulin such cases. Another factor to be considered are effects on the board, peripheral components, etc., and the effects ofperipheral components on the resistor. Make sure to confirm first that the temperature of the resistor incorporated in yourproduct is equal to or lower than the specified temperature, and then use the resistor.■ When the resistors are connected in series or parallel, loads applied respectively to the resistors may not be equal toeach other. Check whether the loads are equal in the actual circuit in which the resistors are incorporated.■ When a resistor is used in a high-frequency circuit, the resistor may fail to offer the required characteristics. Checkwhether the resistor offers the required characteristics in the actual circuit in which the resistors are incorporated.■ Be careful that unusual stress caused by an excessive bend of the printed board is not applied to the resistor. Design thecircuit structure such that the resistor is not close to a perforated line for board splitting or on a line with sizable holesbored on the board.■ When a different component is mounted on the board where the resistor has been soldered, be careful that the boarddoes not bend excessively. If necessary, provide the board with backup pins (support pins) to keep it straight.■ Avoid manual board splitting. Use a jig, etc., to break the board so that it does not bend excessively when split apart.■ When the product is used under mounting conditions departing from mounting conditions specified in our specificationsheet, the product may be exposed to unexpected stress to fail. Be careful to avoid such a case. When mounting theresistor on a printed board, set the resistor’s front and back surfaces in the direction indicated by the tape. Make sure toevaluate and confirm the operation of the resistor incorporated in your product and determine whether the resistor isusable as a component of the product.■ Set soldering conditions for the resistor within the recommended soldering conditions specified by our company. Any time,soldering condition departing from the specified soldering condition, such as a high peak temperature or a long heatingmay impair the performance/reliability of the resistor. Note that the specified soldering conditions indicate conditionsunder which degradation of the resistor characteristics does not occur but do not indicate conditions under which stablesoldering can be performed. Check and set individual conditions under which stable soldering can be performed.■ Heat the resistor in advance so that a difference between the soldering temperature and the temperature of the resistorsurface is reduced to 100 ℃ or lower. When dipping the soldered resistor in a solvent, etc., to cool the resistor rapidly,ensure that the temperature difference between the resistor and the solvent is 100 ℃ or lower during the dipping.■ When soldering the resistor using a soldering iron, apply hot air, etc., to the resistor to heat it sufficiently in advance andthen solder the resistor without bringing the soldering iron tip into contact with the product. If the temperature of thesoldering iron tip is high, finish the soldering work quickly (within 3 seconds when the temperature of the soldering irontip is 350 ℃ or lower). In the case of a fixed resistor with low resistance, the resistor may fail to offer the exactly intendedresistance value because of the variation in the solder volume, etc. Make sure to confirm the resistance value of theresistor in the actual circuit configuration.30-Jun-23Reliability and product lifeCircuit design and circuit board designMounting conditionsDownloaded from Arrow.com.

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