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Many experts agree that balance is the key to a “quiet” circuit. X2Y® is a balanced circuit device with two equal halves, tightly matched
in both phase and magnitude with respect to ground. This effectively eliminates the need for a common mode choke*. Several
advantages are gained by two balanced capacitors sharing a single ceramic component body.
- Exceptional common mode rejection
- Effects of aging & temperature are equal on both caps
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- Effect of voltage variation eliminated
- Matched line-to-ground capacitance
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InAmp Input Filter Example
In this example, a single Johanson X2Y® component was used to filter noise at the input of a DC
instrumentation amplifier. This reduced component count by 3-to-1 and costs by over 70% vs.
conventional filter components that included 1% film Y-capacitors.
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Common Mode Choke Replacement
In this example, a 5 µH common mode choke is replaced by an
0805, 1000pF X2Y® component acheiving superior EMI filtering by a
component a fraction of the size and cost.
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DC Motor EMI Reduction: A Superior Solution
One X2Y® component has successfully replaced 7 discrete filter
components while achieving superior EMI filtering.
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Signal Line Filter for USB & RJ45
One X2Y® component can effectively filter high speed signal lines
replacing replacing multiple inductive and ferrite components. |
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Other X2Y® Filter Applications
DC-DC converters, power I/O, connectors (RJ45, D-sub), audio/voice/data, CAN, high-speed differential.
Effectively replaces common mode chokes, inductors, ferrites and feedthru capacitors. |
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