Information

HDC Series - High Voltage Ceramic Disc Capacitors
Holy Stone
-43 -
(6) Soldering
W
hen 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 solder joint and may result in
thermal shock that can crack the ceramic element. When soldering capacitors with a soldering iron, it
should be performed in following conditions.
Temperature of iron-tip: 400 degrees C. max.
Soldering iron wattage : 50W max.
Soldering time : 3.5 sec. max.
(7) Cleaning (ultrasonic cleaning)
To perform ultrasonic cleaning, observe the following conditions.
Rinse bath capacity : Output of 20 watts per liter or less.
Rinsing time : 5 min. maximum.
Do not vibrate the PCB/PWB directly.
Excessive ultrasonic cleaning may lead to fatigue failure of the lead wires.
(8) Rating
Capacitance change of capacitor
(a). Class 1 series (Temp. Char. SL
NP0)
Capacitance might change a little depending on the surrounding temperature or an applied voltage.
Please contact us if you intend to use this product in a strict time constant circuit.
(b). CLASS 2 Series (Temp. Char. X7R,Y5S,Y5P,Y5U and Y5V)
Capacitors have an aging characteristic, whereby the capacitor continually decreases its capacitance
slightly if the capacitor is left on for a long time. Moreover, capacitance might change greatly
depending on the surrounding temperature or an applied voltage. Therefore, it is not likely to be
suitable for use in a time constant circuit.
Please contact us if you need detailed information.
Failure to follow the above cautions may result, in worst case, in short circuit and cause
fuming or partial dispersion when the product is used.