Product Overview

The CBB21/MPP series capacitors are metallized polypropylene film capacitors with an inductive-free winding structure, encapsulated in flame-retardant epoxy resin. They are designed for a wide range of electronic applications, including DC blocking, coupling, decoupling, filtering, and bypassing in high-frequency, DC, AC, and pulse circuits. Key features include excellent self-healing properties, low loss, and minimal internal temperature rise.

Product Attributes

• Brand: DGCX (Company Trademark)
• Product Type: CBB21/MPP Series Metallized Polypropylene Film Capacitors (Impregnated Type)
• Origin: Dongguan, Guangdong, China
• Encapsulation: Flame-retardant epoxy resin powder coating (UL94V-0)
• Internal Coating: Epoxy resin
• Lead Material: Tinned copper clad steel wire
• Conformity: RoHS, REACH, Halogen-free (if required)

Technical Specifications

General Electrical Characteristics

Maximum Pulse Rise Rate (dV/dt)

If the actual working voltage (U) is lower than the rated voltage (UR), the capacitor can operate at a higher dV/dt. The allowable dV/dt value should be multiplied by UR/U.

Product Structure and Main Materials

Note: All raw materials and finished products comply with RoHS environmental requirements.

Packaging Information

Carton Packaging Details: Includes manufacturer part number, quantity per bag, and Lot No. Capacitors are packaged in transparent PVC bags for moisture and dust protection. RoHS environmental mark included. Other customer-specific markings are available.

Storage Conditions

• Avoid prolonged exposure to air, which can degrade lead wire solderability.
• Do not store in high temperature or high humidity environments.
• Storage Conditions: Temperature: Max 35C, Relative Humidity: Max 80% (in original packaging).
• Storage Time: Maximum 12 months from the production date marked on the packaging bag.

Environmental Characteristics

• Complies with RoHS requirements.
• Complies with REACH requirements.
• Complies with Halogen-free requirements (if specified).

Usage Rules

• Usage Range: Do not exceed the upper category temperature. Avoid overload and exceeding maximum pulse current.
• Operation Precautions: Avoid repeated squeezing at the lead wire root. Be cautious of lead wire tips.
• Soldering: Solder heat can transfer to the capacitor core through lead terminals and encapsulation. Avoid solder heat and prolonged soldering times that may cause degradation or damage.
• Soldering Temperature Guidelines:
  • Wave Soldering (MPP Polypropylene Film Capacitors): TP 110C for 120 seconds; Ts 120C for 45 seconds. For P 7.5mm, T 4mm, wave soldering time < 4 seconds.
  • Soldering Iron: Tip temperature not exceeding 350C, time not exceeding 3 seconds.
  • Capacitors with leads are not suitable for reflow soldering.

Definitions: Ts: Maximum temperature the capacitor body can withstand during wave soldering. Tp: Maximum temperature the capacitor body can withstand during the preheating stage.

Maximum Effective Voltage vs. Frequency Curve

Note: Typical values in the curve are tested under conditions of sinusoidal voltage, ambient temperature 85C, and internal capacitor temperature rise T = 10C.