Samsung SCLSeries Table.2 Hz VS K Frequency 120 400 10k 20k 40k 100k 10K 100K, Ripple Voltage

Page 17

Table.2 Hz VS K

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Frequency

 

K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120

 

1.0

1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400

 

0.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1k

 

0.65

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10k

 

0.50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20k

 

0.45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40k

 

0.43

0.01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100k

 

0.40

100

 

 

 

 

1K

 

 

 

10K

 

 

 

100K

 

 

1M

 

 

 

 

 

 

 

 

FREQUENCY(Hz)

 

 

 

 

 

1M

 

0.35

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig.4

Correction Coefficient(K)

 

 

 

 

 

Ripple Voltage

If an excessive ripple voltage is applied to the tantalum capacitors, their internal temperature rises due to Joule heat, resulting in the detriment of their reliability.

SCL Series

The tantalum capacitors must be used in such a conditions that the sum of the Working Voltage and ripple voltage peak values does not exceed the rated voltage (Fig. 5)

Ensure that an reverse voltage due to superimposed voltages is not applied to the capacitors.

The maximum permissible ripple voltage varies with the rated voltage. Ensure that ripple voltage does not exceed the values shown in Figs 6 and 7. If, however, the capacitors are used at a high temperature, the maximum permissible ripple voltage must be calculated as follows:

Vrms(at 55) = 0.7 x Vrms(at 25) Vrms(at 85) = 0.5 x Vrms(at 25) Vrms(at 125) = 0.3 x Vrms(at 25)

Image 17
Contents Tantalum Capacitor SCL Series Rated Voltage Abbriviation of Tantalum Capacitor Type of SeriesCapacitance Capacitance TolerancePacking Symbol Packing Code InchPacking Polarity Taping150 100Reliability Test Condition +85 Items Test Condition PerformanceBoard PressureR0.5 Scratch toolChip Pressure R0.5Solder Alumina Board Series Marking 35VSmall Letter Capacitance RangeCap Capital Letter SmallCover Tape 15˚ Removal speed 50mm/sec Embossed Plastic TapeCase Size 180mm7 reel 330mm13 reel Reference Reel DimensionTape Min ±0.5 ±051 +0.5 Width ±0.079 ±0.020 100 125 Power Supply CircuitOperating Voltage Ripple TemperatureRipple Current AmbientRipple Voltage Table.2 Hz VS K Frequency 120 400 10k 20k 40k 100k 10K 100KCorrection CoefficientK FrequencyHz Reverse Voltage▷ Failure rate calculation formula Reliability of Tantalum CapacitorsFailure Rate Calculation Formula Reliability Nomograph Reliability PredictionLimit Pressure on Capacitor Installation with Mounter Mounting PrecautionsRecommended Soldering Pattern Dimensions Flux260 Max Recommended soldering pattern dimensionsmmOther Cleaning after Mounting