CBB81 223J2KV Metalized Polyester Film Capacitor

CBB81 223J2KV Metalized Polyester Film Capacitor is a high-voltage, premium-grade passive component designed to handle demanding high-frequency and high-pulse circuits. This robust capacitor features a metalized film dielectric combination that delivers excellent self-healing properties alongside low inherent temperature rise. Consequently, the unit ensures long-term operational stability and prevents catastrophic breakdown under severe voltage spikes. With a substantial capacitance of 22nF and a peak voltage rating of 2000V, it easily manages heavy-duty electrical loads. Furthermore, its low dissipation factor makes it highly efficient in alternating current applications. Therefore, you should select this capacitor to enhance the reliability of your power supplies, electronic ballasts, and resonant inversion systems.

Key Features:

• High Voltage Endurance: Rated for operation up to 2000 V_DC, enabling it to withstand heavy impulse stresses safely.
• Excellent Self-Healing: The advanced metalized layer automatically isolates internal short circuits, which significantly extends the overall lifespan of the component.
• Low Dissipation Factor: Exhibits minimal energy loss in high-frequency environments, reducing internal heat generation.
• Flame Retardant Coating: Features a rugged epoxy resin encapsulation that meets UL 94 V-0 standards for enhanced safety.
• High dV/dt Capability: Withstands rapid voltage transitions effortlessly, making it perfect for snubber and pulse-modulating networks.

Technical Specifications:

• Capacitance Value: 0.022 μF (22 nF / 223J)
• Tolerance Rating: ±5% (J Tolerance)
• Rated Voltage (V_R): 2000 V_DC (2 kV)
• Dissipation Factor (tan δ): ≤ 0.001 (at 1 kHz, 20°C)
• Insulation Resistance (I_R): ≥ 30,000 MΩ
• Operating Temperature Range: −40°C to +105°C

Mechanical Specifications:

• Dielectric Material: Polypropylene and Metalized Polyester Film
• Lead Type: Radial tinned copper wire leads
• Encapsulation: Vacuum-epoxy dipped coating
• Solderability: Meets standard industrial through-hole wave soldering metrics

Dimensions:

• Body Width (W): ≈ 18.5 mm
• Body Height (H): ≈ 14.5 mm
• Body Thickness (T): ≈ 9.5 mm
• Lead Pitch (P): ≈ 15.0 mm
• Lead Diameter (d): ≈ 0.8 mm

Pinout and Wiring:

• Lead 1 (Non-Polarized): Connects to either side of the high-voltage AC/DC line or signal path.
• Lead 2 (Non-Polarized): Connects to the opposing terminal or ground reference point.
• Wiring Note: However, you must preserve adequate creepage distance on the PCB surfaces due to the high 2kV rating of this component.

Datasheet Reference:

• Download CBB81 223J2KV Capacitor Datasheet

Commonly Used in:

• Switch-Mode Power Supplies (SMPS): Providing reliable filtering and peak energy storage within high-frequency switchers.
• TV and Monitor Deflection Circuits: Handling horizontal resonant pulses in cathode-ray tubes or specialized display drivers.
• Electronic Ballasts: Stabilizing the output frequency in modern fluorescent and HID lighting setups.

Applications:

• Snubber Networks: Absorbing transient voltage spikes across power semiconductors like IGBTs and MOSFETs.
• High-Frequency Pulsing: Serving as a timing or coupling element in fast-switching industrial circuits.
• Resonant Tank Circuits: Working in tandem with induction heating coils to form stable tank oscillators.
• Home Appliances: Mosquito Racket Capacitor

Equivalent Models:

• CBB81B 22nF 2000V: A variant containing altered lead-spacing layouts but maintaining the identical power ratings.
• MKP81 0.022μF 2kV: A metallized polypropylene equivalent that can substitute in extreme high-frequency pulse environments.
• CBB21 223J2KV: A similar film-type component, although it typically supports lower dV/dt thresholds compared to the rugged CBB81 series.

Package Includes:

• 1 x CBB81 223J2KV Metalized Polyester Film Capacitor