1. Three-terminal capacitors have lower equivalent series inductance (ESL) and equivalent series resistance (ESR) than two-terminal capacitors, allowing for wider capacitive range and better noise suppression. 2. A single three-terminal capacitor provides better noise reduction than multiple two-terminal capacitors or combinations of different capacitor types due to avoiding issues like anti-resonance. 3. Three-terminal capacitors save space on printed circuit boards compared to multiple discrete capacitors since fewer components are required.

1. 1

2. Reference : [11] 2

3. With decoupling capacitors, the voltage ripple and noise emission can
be reduced [10].
3

4. The lower ESL is, the wider capacitive range will be.
The lower ESR is, the better noise suppression will be [12].
4

5. The path the noise flows inside 3-terminal capacitor is shorter than
which inside 2-terminal capacitor. That’s to say, the 3-terminal
capacitor has lower ESL and ESR [12,13].
C = 10 uF 5

6. With lower ESL and ESR, the 3-
terminal capacitor has wider
capacitive range and better noise
suppression than 2-terminal one [7,9]
6

7. Although signal must pass through the whole 3-terminal capacitor.
Nevertheless, as mentioned above, the ESR of 3-terminal capacitor
is extremely small. Thus, the loss is negligible.
Feed Through
Electrode
GND Electrode
Signal Flow
7

8. Lower ESR => Lower Voltage Ripple.
Lower ESL => Smaller loop area =>
lower Noise Emission [10].
8

9. For noise reduction,
one 3-terminal capacitor is even better than
(1 bead + 2 * 2-terminal capacitor )[1].
9

10. For noise reduction,
one 1uF 3-terminal capacitor is even better than
(4 * 0.22 uF 2-terminal capacitor )[6].
10

11. For noise reduction,
one 10uF 3-terminal capacitor is even better than
(22uF + 10 nF x 5pcs + 100 pF x 5pcs)[4].11

12. Compared to multiple capacitors, the 3-terminal capacitor
doesn’t have anti-resonance issue. Besides, the 3-terminal
capacitor can save PCB area due to less components[5,12].
12

13. In addition, the number of GND via is the more the better. By
doing this, the impedance of noise path can be reduced further,
which can lead to better noise suppression[7,8].
13

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