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RF CHARACTERISTICS - 1111 S24E SERIES More data at: https://jtisoft.johansontechnology.com

Effective capacitance value: 1111/S42E

0

50

100

150

200

250

300

350

400

0

500

1000

1500

2000

Freq (MHz)

C(1 MHz) = 300pF

C(1 MHz) = 100 pF

C(1 MHz) = 10 pF

Typical values on a 60-mil thick

Rogers 4350B substrate

0.1

1

10

1

10

100

1000

Capacitance value (pF)

SRF

Typical values with:



Series mounting



Horizontal orientation



60 mil-thick Rogers 4350B substrate

1111 S42E Series Resonant frequency

0

50

100

150

200

250

300

0

500

1000

1500

2000

Freq (MHz)

1.2 pF

4.7 pF

10 pF

33 pF

100 pF

300 pF

Typical values

1111 S42E Equivalent Series Resistance (ESR)

1

10

100

1000

10000

0

500

1000

1500

2000

Freq (MHz)

S42E

0.2 pF

1.2 pF

4.7 pF

10 pF

33 pF

100 pF

300 pF

1111 S42E Q factor

Typical values

0.01

0.1

1

10

100

1000

0.1

1

10

100

1000

Capacitance value (pF)

200 MHz

100 MHz

40 MHz

15 MHz

7 MHz

Estimated maximum current based on



Ambient temperature = 65 °C



Thermal resistance of DUT on substrate = 20°C/W



Infinite heatsink



Duty cycle=100%

1111 S42E Max Current vs. Capacitance Value

1111 S42E Max Current vs. Frequency

0

2

4

6

8

10

12

14

16

18

20

0

500

1000

1500

2000

Freq (MHz)

300 pF

100 pF

33 pF

10 pF

4.7 pF

1.2 pF

0.2 pF

Estimated maximum current based on



Ambient temperature = 65 °C



Thermal resistance of DUT on substrate = 20°C/W



Infinite heatsink



Duty cycle=100%

The Series Resonant Frequency is highly dependent on the substrate,

pad dimensions, and measurement method. The above chart is for

reference only.