Paktron • P.O. Box 4539, 1205 McConville Road, Lynchburg, Virginia 24502 • Tel 434-239-6941 • Fax 434-239-4730 • www.paktron.com •

PAGE 7

Metallized Polyester (PET) Dielectric

100 KHz

10 KHz

1 KHz

100 Hz

X7R-MLC

RA

-4%

-2%

0%

2%

Capacitance Change vs. Frequency

RA

X7R-MLC

125

105

85

65

45

25

0

-20

-40

-55

-10%

-5%

0%

5%

10%

Capacitance Change vs. Temperature

Capacitance Change vs. AC Volts

0

01

23

45

1.0

2.0

3.0

RA

X7R-MLC

6%

5%

4%

3%

2%

1%

0%

-55 -40 -20

025456585

105 125

RA

X7R-MLC

Dissipation Factor vs. Temperature

Dissipation Factor vs. AC Volts (1 KHz)

Capacitance vs. Time (Aging)

0%

1%

2%

3%

4%

100 Hz

1 KHz

10 KHz

100 KHz

RA

X7R-MLC

Dissipation Factor vs. Frequency

0

-20

0

+20

12

3

RA

X7R-MLC

10

100

1000

10000

100000

0

-10

RA

X7R-MLC

0

-20

-30

-40

0

-10

-50

020

40

60

80

100

RA

X7R-MLC

Capacitance Change vs. DC Bias

Frequency

Temperature (

°C)

AC Voltage (Vrms)

Temperature (

° C)

Frequency

AC Voltage (Vrms)

Time (Hrs.)

DC Bias (volts)

Typical Performance Curves

Comparison of Multilayer Polymer (RA) vs. Multilayer Ceramic (X7R)