CAP200DG-TL is positioned for AC-DC converters and appliances that must meet strict standby consumption limits while still using sufficiently large X capacitors for differential-mode EMI filtering. By "disconnecting" the discharge resistor path during normal AC operation, it enables designers to use larger X capacitors (and potentially smaller inductors) without increasing no-load power.

Traditional X-capacitor discharge resistors continuously dissipate power whenever AC is applied. CAP200DG-TL changes that: it blocks resistor current while AC is present, reducing standby loss to a level that is effectively negligible in typical compliance measurements, and then automatically discharges the capacitor once AC is disconnected.

Practical outcome: you can tune EMI performance (often by increasing X-capacitance) without paying for it in standby power.

CAP200DG-TL uses an SO-8 (D) package. The pin configuration is designed so the package width supports creepage/clearance of over 4 mm when implemented correctly on the PCB.

Power Integrations is known for power-conversion ICs and energy-efficient offline solutions. The CAPZero family targets standby-power reduction and compliance-oriented designs by addressing "always-on" losses in safety discharge networks.

For production designs, always validate safety, surge, and EMI performance using the latest official documentation and your compliance lab test results.

CAP200DG-TL is a packaging option (Tape & Reel) of the CAP200DG device family. In many BOMs, the closest "equivalent" is the same electrical part with a different packing suffix.

• Direct equivalent: CAP200DG (same device, different packing option depending on supplier listing).
• Functional alternative (discrete): traditional bleeder resistors across X capacitor (simple but increases standby loss).
• Functional alternative (active): HV switch + control network to disconnect/enable discharge path (higher BOM and validation effort).

CAP200DG-TL is a practical choice when you need automatic X-capacitor discharge but want to avoid the standby power penalty of traditional discharge resistors. With a 1000 V rating, two-terminal simplicity, and wide X-cap compatibility, it helps engineers optimize EMI filters while keeping no-load consumption low.