Reference Specification DHR Series High Voltage Lead Type Disc Ceramic Capacitors for General Purpose Product specifications in this catalog are as of Feb. 2018, and are subject to change or obsolescence without notice. Please consult the approval sheet before ordering.Please read rating and Cautions first. Reference only CAUTION 1.OPERATING VOLTAGE When DC- rated capacitors are to be used in AC or ripple current circuits, be sure to maintain the Vp-p value of the applied voltage or the Vo-p which contains DC bias within the rated voltage range. When the voltage is started to apply to the circuit or it is stopped applying, the irregular voltage may be generated for a transit period because of resonance or switching. Be sure to use a capacitor within rated voltage containing these irregular voltage. Voltage DC Voltage DC+AC Voltage AC Voltage Pulse Voltage(1) Pulse Voltage(2) Positional Vp-p Vp-p Vo-p Vo-p Vp-p Measurement 2. OPERATING TEMPERATURE AND SELF-GENERATED HEAT Keep the surface temperature of a capacitor below the upper limit of its rated operating temperature range. Be sure to take into account the heat generated by the capacitor itself. When the capacitor is used in a high-frequency current, pulse current or the like, it may have the self-generated heat due to dielectric-loss. Applied voltage should be the load such as self-generated heat is within 10 C on the condition of atmosphere temperature 25 C. When measuring, use a thermocouple of small thermal capacity-K of 0.1mm and be in the condition where capacitor is not affected by radiant heat of other components and wind of surroundings. Excessive heat may lead to deterioration of the capacitors characteristics and reliability.(Never attempt to perform measurement with the cooling fan running. Otherwise, accurate measurement cannot be ensured.) 3. OPERATING AND STORAGE ENVIRONMENT The insulating coating of capacitors does not form a perfect seal therefore, do not use or store capacitors in a corrosive atmosphere, especially where chloride gas, sulfide gas, acid, alkali, salt or the like are present. And avoid exposure to moisture. The capacitor is designed to be used in the insulating media, such as epoxy resin, silicone oil, etc.. There must be 3mm or more insulating media for each direction of the capacitor. In case of cleaning, bonding, or molding this product, verify that these processes do not affect product quality by testing the performance of a cleaned, bonded or molded product in the intended equipment. Store the capacitors where the temperature and relative humidity do not exceed -10 to 40 C and 15 to 85 %. Use capacitors within 6 months after delivered.. 4. VIBRATION AND IMPACT Do not expose a capacitor or its leads to excessive shock or vibration during use. 5. SOLDERING When soldering this product to a PCB/PWB, do not exceed the solder heat resistance specification of the capacitor. Subjecting this product to excessive heating could melt the internal junction solder and may result in thermal shocks that can crack the ceramic element. When soldering capacitor with a soldering iron, it should be performed in following conditions. Temperature of iron-tip : 400 C max. Soldering iron wattage : 50W max. Soldering time : 3.5s max. Failure to follow the above cautions may result, worst case, in a short circuit and cause fuming or partial dispersion when the product is used. 6. Limitation of Applications Please contact us before using our products for the applications listed below which require especially high reliability for the prevention of defects which might directly cause damage to the third party s life, body or property. 1) Aircraft equipment 2) Aerospace equipment 3) Undersea equipment 4) Power plant control equipment 5) Medical equipment 6) Transportation equipment(vehicles, trains, ships, etc.) 7) Traffic signal equipment 8) Disaster prevention / crime prevention equipment 9) Data-processing equipment 10) Application of similar complexity and/or reliability requirements to the applications listed in the above. EGDR02A - 1 -