United Chemi-Con Detailed Specifications For Series KRG

Detailed Specifications For Series KRG

• Miniature
• Low Profile
• Solvent Proof
• +105°C Maximum Temperature

The KRG series capacitors are designed for low profile applications. These miniaturized capacitors have case sizes from 4 x 7mm to 18 x 25mm, enabling a large range of capacitance values while maintaining a lower profile than standard general purpose capacitors. The KRG capacitors are also ideal because they can be used over a wide temperature range, -55°C to +105°C.

The KRG series capacitors were developed to withstand HCFC cleaning agents for five minutes by ultrasonic, vapor or immersion. This solvent proof design allows all circuit board components to be cleaned together, at the same time, without resorting to more expensive epoxy end-sealed capacitors. Refer to the Mini-Glossary for recommended cleaning conditions.

Item

Characteristics

Operating Temperature Range

-55 to +105°C

Rated Voltage Range

6.3 to 50VDC

Capacitance Range

0.1 to 10,000µF

Capacitance Tolerance

±20% (M) at +20°C, 120Hz

Leakage Current

I = 0.01CV or 3µA, whichever is greater, after 2 minutes at +20°C.

Where I = Leakage current (µA), C = Nominal capacitance (µF) and V = Rated voltage (V)

Dissipation Factor (Tan d)

At +20°C, 120Hz

Rated Voltage (V)	6.3	10	16	25	35	50
Tan d (DF)	0.24	0.2	0.16	0.14	0.12	0.1

Low Temperature Characteristics

At 120Hz, impedance (Z) ratio between the -25°C or -40°C value and +20°C value shall not exceed the values given below.

Rated Voltage (V)	6.3	10	16	25	35	50
Z (-25°C)/Z (+20°C)	5	4	3	2	2	2
Z (-40°C)/Z (+20°C)	10	8	6	4	3	3

Ripple Current Multipliers

Refer to Section 4 of the Mini-Glossary for explanation of Ripple Current Multipliers.

Ambient Temperature (°C)

+85°C	+105°C
1.75	1

Frequency (Hz)

Capacitance (µF) 50Hz 120Hz 300Hz 1kHz 10kHz 100kHz

<= 3.3µF 0.65 1 1.35 1.75 2.3 2.5

4.7-33µF 0.75 1 1.25 1.5 1.75 1.8

47-1000µF 0.8 1 1.15 1.3 1.4 1.5

>= 2200µF 0.85 1 1.03 1.05 1.08 1.08

Load Life

The following specifications shall be satisfied when the capacitors are restored to +20°C after subjecting them to the DC rated voltage for 1,000 hours at +105°C. The sum of DC voltage and peak AC voltage must not exceed the full rated voltage of the capacitors.

Capacitance change : <= ±25% of initial measured value for <= 16V
: <= ±20% of initial measured value for >= 25V
Tan d (DF) : <= 200% of initial specified value
Leakage current : <= initial specified value

Shelf Life

The following specifications shall be satisfied when the capacitors are restored to +20°C after exposing them for 500 hours at +105°C without voltage applied. The rated voltage shall be applied to the capacitors for a minimum of 30 minutes, at least 24 hours and not more than 48 hours before the measurements.

Others

Satisfies characteristic W of JIS C5141