Product Overview

The CBB21B(R)/MKPH series are box-type metallized polypropylene film capacitors designed for high-frequency DC and PFC applications in electronic equipment. They are suitable for coupling, decoupling, filtering, and bypass functions in switching power supplies. These capacitors feature a non-inductive winding structure, small size, flame-retardant plastic casing, and epoxy resin encapsulation, ensuring good dimensional consistency, low loss, and minimal internal temperature rise. They comply with RoHS and REACH environmental standards.

Product Attributes

• Brand: DGCX
• Product Series: MKPH
• Origin: Dongguan, China
• Casing Material: PBT Flame-retardant plastic shell (UL94V-0)
• Encapsulation Material: Flame-retardant epoxy resin (UL94V-0)
• Environmental Compliance: RoHS, REACH, Halogen-free (if required)

Technical Specifications

General Electrical Characteristics

Maximum Pulse Rise Rate (dV/dt)

Note: If actual working voltage (U) is lower than rated voltage (UR), the capacitor can operate at 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

Packaging Details:

• Carton details include: Manufacturer's part number, number of packages and quantity per package, Lot No.
• Capacitors are packaged in transparent PVC bags for moisture and dust protection.
• RoHS environmental mark.
• Other customer marking requirements.

Storage Conditions

• Prolonged exposure to air may degrade lead wire soldering performance.
• Avoid high temperature and high humidity environments.
• Temperature: Max 35
• Relative Humidity: Max 80%
• Storage Time: Maximum 12 months (based on production date marked on the packaging bag).

Environmental Characteristics

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

Product Electrical Characteristics and Test Conditions

Usage Rules

• Usage Range:
• Do not exceed the upper category temperature.
• Avoid overload operation.
• Do not exceed the maximum pulse current.
• Operation Precautions:
• Avoid repeated squeezing at the lead wire root.
• Pay attention to the tip of the lead wire.
• Soldering: Solder heat can transfer to the capacitor core through lead terminals and encapsulation. Be cautious of capacitor electrical characteristic attenuation or damage caused by high temperature and prolonged soldering.
• Soldering Temperature Range:
• Wave Soldering (MPP Polypropylene Film Capacitors): TP110 for 120 seconds; Ts120 for 45 seconds. For P7.5mm, T4mm, wave soldering time < 4 seconds.
• Soldering Iron: Tip temperature not exceeding 350, time not exceeding 3 seconds.
• Lead wire film capacitors are not suitable for reflow soldering.

Ts: Maximum temperature the component body can withstand during wave soldering.

Tp: Maximum preheating temperature the component body can withstand.

Rated Voltage Derating

Rated voltage definition: The continuous voltage that the capacitor can withstand within the temperature range. However, when the operating temperature is between +85 and +105, the rated operating voltage should be reduced by 1.25% for every 1 increase.