Microwave Ceramic Capacitors

Single layer microwave ceramic capacitors are manufactured of low loss E-37 and E-20 microwave ceramic materials with temperature coefficient of capacitance 0±20 ppm and 0±30 ppm, respectively. Non-magnetic electrodes are metallized by silver with good solderability. Value can be trimmed using diamond micro-drills or by laser. T-CERAM stable ceramic capacitors are ideally suited for functional tuning applications in filters, oscilators and other RF or microwave circuits.

Single layer ceramic capacitor

resonator-capacitor
Application example

Basic characteristics

Available Capacitance	0.1 ... 10 pF
Tolerances	0.05pF, 0.1pF, 0.2pF
Temperature coefficient of capacitance	0±20ppm (E-37), 0±30ppm (E-20)
Insulation resistance	> 10¹³ Ohm at 250V DC
Dissipation factor	< 10^-3 at 1MHz

Capacitors are manufactured in Custom lines or as Development kits.
Typical line, material E-37:

t=1.5mm, b=1mm
a (mm)	C (pF)
0.5	0.10
0.7	0.15
0.9	0.20
1.1	0.25
1.4	0.30
1.6	0.35
t=1.5mm, b=1,5mm
1.3	0.40
1.4	0.45
1.6	0.50
1.7	0.55
1.9	0.60
2.0	0.65
2.2	0.70

t=1.5mm, b=2mm
a (mm)	C (pF)
1.6	0.7
1.9	0.8
2.1	0.9
2.3	1.0
2.6	1.1
2.8	1.2
3.0	1.3
3.3	1.4
3.5	1.5
3.8	1.6
4.0	1.7
4.2	1.8

t=1mm, b=2mm
a (mm)	C (pF)
2.3	1.5
2.5	1.6
2.6	1.7
2.8	1.8
3.0	1.9
3.1	2.0
3.3	2.1
3.4	2.2
3.6	2.3
3.7	2.4
3.9	2.5
4.0	2.6
4.2	2.7

t=0.6 mm, b=2mm
a (mm)	C (pF)
1.9	2.0
2.1	2.2
2.2	2.4
2.4	2.6
2.6	2.8
2.8	3.0
3.0	3.2
3.2	3.4
3.4	3.6
3.5	3.8
3.7	4.0
3.9	4.2
4.1	4.4
4.3	4.6

t=0.4 mm, b=2mm
a (mm)	C (pF)
3.0	4.8
3.1	5.0
3.2	5.2
3.3	5.4
3.4	5.6
3.5	5.8
3.6	6.0
3.8	6.2
3.9	6.4
4.0	6.6
4.2	6.8
4.3	7.0
4.4	7.2
4.5	7.4