Dielectric Substrates - General Information
Capacitor Dielectric Table
 

Dielectric Code

DC

Temperature Coefficient

Temperature Range

Max. Dissipation Factor

  I.R.
(Min @ 25°C)

I

B

8 to 14 @ 1MHz

0 ± 30ppm/ °C

-55°C to +125°C

0.15% @ 1MHz

1012Ω

C

15 to 30 @ 1MHz

0 ± 30ppm/ °C

-55°C to +125°C

0.15% @ 1MHz

1012Ω

D

35 to 60 @ 1MHz

0 ± 30ppm/ °C

-55°C to +125°C

0.15% @ 1MHz

1012Ω

E

65 to 80 @ 1MHz

0 ± 30ppm/ °C

-55°C to +125°C

0.15% @ 1MHz

1012Ω

F

85 to 120 @ 1MHz

-750 ± 120ppm/ °C

-55°C to +125°C

0.25% @ 1MHz

1012Ω

G

130 to 190 @ 1MHz

-1500 ± 300ppm/ °C

-55°C to +125°C

0.25% @ 1MHz

1012Ω

H

200 to 280 @ 1MHz

-2200 ± 500ppm/ °C

-55°C to +125°C

0.30% @ 1MHz

1012Ω

I

300 to 450 @ 1MHz

-3300 ± 500ppm/ °C

-55°C to +125°C

0.30% @ 1MHz

1012Ω

II

J

500 to 720 @ 1KHz

±10%

-55°C to +125°C

2.5%*

1011Ω

K

800 to 1400 @ 1KHz

±15%

-55°C to +125°C

2.5%*

1011Ω

L

1500 to 2400 @ 1KHz

±15%

-55°C to +125°C

2.5%*

1011Ω

M

2500 to 3400 @ 1KHz

±15%

-55°C to +125°C

2.5%*

1011Ω

N

3500 to 5000 @ 1KHz

±15%

-55°C to +125°C

2.5%*

1011Ω

P

5500 to 8000 @ 1KHz

+22% to -56%

+10°C to +85°C

4.0% @ 1KHz

1011Ω

O

8500 to 12000 @ 1KHz

+30% to -80%

-25°C to +85°C

4.0% @ 1KHz

1011Ω

III

W

8000 to 15000 @ 1KHz

±10%

-55°C to +125°C

2.0% *

1010Ω

X

16000 to 24000 @ 1KHz

±15%

-55°C to +125°C

2.0% *

1010Ω

Y

25000 to 38000 @ 1KHz

±15%

-55°C to +125°C

2.0% *

109Ω

Z

40000 to 60000 @ 1KHz

±22%

-55°C to +125°C

2.5% @ 1KHz

109Ω

Note:For substrate thickness above 20 mils, the tolerance is ± 2 mils.
  • The measurement frequency of C and DF is 1MHz when C central value <1000pF, 1KHz when C central value >1000pF.
  • I.R. measuring voltage is equal to the rated voltage per customer specifications.
  • The dielectric withstanding voltage is 2.5X the rated voltage. The measuring time is 5s ± 1s.
  • The I.R. minimum in table 3 is based upon an SLC (size code 35).
  • Microwave Dielectric Table
     

    Dielectric Code

    εr

    Measured Frequency

    Q value

    MC

    23

    10GHz

    > 15000

    MD

    27

    10GHz

    > 10000

    ME

    30

    7GHz

    > 8500

    MF

    39

    4GHz

    > 8000

    MG

    86

    3GHz

    > 4000

     
     
    Temperature Coefficient of Capacitance Curves of Dielectric Materials
         
    Curve1
     
    Curve2
         
    Curve3
     
    Curve4
         
    Curve5